WO2014205839A1

WO2014205839A1 - Method and apparatus for downloading file

Info

Publication number: WO2014205839A1
Application number: PCT/CN2013/078501
Authority: WO
Inventors: 秦晋; 狄龙; 谢军安
Original assignee: 华为技术有限公司
Priority date: 2013-06-29
Filing date: 2013-06-29
Publication date: 2014-12-31
Also published as: CN104969532A; CN104969532B

Abstract

In the embodiments of the present application, in a process in which a terminal uses a service provided by a CSP server, the terminal does not need to additionally establish a connection to a UCD server, and the terminal can obtain, through a connection to the CSP server, a file uploaded by a user through the UCD server and divided into blocks, and accordingly, a process of additionally establishing, by the terminal, a connection to the UCD server is avoided, and operations of a user are simplified, thereby improving user experience.

Description

The present invention relates to the field of cloud computing, and in particular, to a file downloading method and apparatus. BACKGROUND A cloud storage service refers to a service in which a server provides a file management function such as storage, access, backup, and sharing of files to a user. Users can view the server as a hard disk or network disk on the network, and manage and edit the files stored on the server from anywhere, via the Internet.

In the prior art, a user can register with a different cloud service provider (C SP ) in a unified cloud disk (UCD) system, and register at the UCD server UCD server, and The UCD server provides related information registered by the user at the CSP server, such as the user name and password registered by the user at the CSP server, so that the UCD server can log in to the CSP server registered by the user according to the registration information of the user at the CSP server. The user passes the UCD client. The UCD Client sends a file operation request (such as uploading, downloading, changing the file name, etc.) to the UCD server.

For example, the user uploads a file to the UCD server through the UCD client, and the UCD server selects a suitable CSP in the CSP that the user has registered according to a certain policy. The specific policy may be: for example, the CSP server with the largest storage capacity. The current fastest transmission CSP server, and this file is actually stored in the network disk of the CSP server selected by the UCD server. For the user, only the file is stored in the CSP that the user has previously registered, but it is not clear which CSP server is stored. For example, the user uploads two files through the UCD client. These two files are stored by the UCD server to CSP server A and CSP server C respectively. It is also possible that these two files are simultaneously present in one CSP server.

In addition, users sometimes split a file into different file blocks and store different file blocks in different devices (such as servers). So even if a file block is stolen, it is impossible to obtain The other file blocks of the file, the entire file is still not available, thus ensuring the security of the file. For example, an existing file is divided into two file blocks, and two file blocks are separately stored on different servers, one file block is sensitive data in the file, and the other file block is general data in the file. Thus the security of the file is ensured by the method of file segmentation. In another scenario, it is also possible for users to block large files.

However, when a file block is selected by the UCD server to select a CSP server, different file blocks of the same file are likely to be stored at different CSP servers. Therefore, when different file blocks of the same file are stored in the network disk of different CSP servers, the user terminal cannot obtain the stored file from the CSP server when establishing a connection with the CSP server, but can only establish a connection with the UCD server through the terminal. After that, the entire file is obtained from the UCD server. As a result, the user's operation is cumbersome and inconvenient, and the experience is not high. Summary of the invention

The method and apparatus for downloading a file provided by the embodiment of the present invention may enable the terminal to download a file from the CSP server after logging in to the CSP server using the service provided by the CSP server.

According to a first aspect of the present invention, a file downloading method, after the first terminal logs in to the first CSP server by using registration information of the first cloud service provider CSP server by the user, In the process of the first CSP server providing the service to the first terminal, the method includes: the first CSP server receiving a file download request sent by the first terminal, where the file download request carries an identifier of the original file; Determining, by the first CSP server, that the original file corresponding to the identifier of the original file is fragmented, and acquiring an identifier of a first unified cloud disk UCD server that uploads a file block of the original file; the first CSP server according to the The identifier of the first UCD server sends a file acquisition request to the first UCD server, where the file acquisition request carries an identifier of the original file, and the file acquisition request is used to indicate that the first UCD server is based on the original The identifier of the file acquires the information of the stored original file, and stores the second CSP service of the file block according to the information of the original file. 'S identification, from identifying the second indication of the second CSP server The CSP server acquires a file block, and synthesizes the obtained file block into an original file; the first CSP server receives a file acquisition response returned by the first UCD server, and sends the file acquisition response to the first a terminal, to instruct the first terminal to acquire the original file by using the file acquisition response.

With reference to the first aspect of the first aspect of the present invention, the acquiring, by the first terminal, the original file by using the file obtaining response is: the file obtaining response carrying the original file, and the first terminal acquiring a response from the file Obtaining the original file; or the file obtaining response carrying a storage address of the original file at the first UCD server; the first terminal acquiring the content from the first UCD server according to the storage address Original file.

In conjunction with the first aspect or the first possible second possibility of the embodiment of the present invention, before the receiving the file download request sent by the first terminal, the method further includes: receiving a query request sent by the first terminal; Acquiring, by the user, the registration information of the first CSP server, the file block information that is stored by the user in the first CSP server, where the file block information includes the identifier of the first UCD server and the file block Sending a file block query request to the first UCD server according to the identifier of the first UCD server, where the file block query request includes an identifier of an original file to which the file block belongs; The information of the original file returned by the first UCD server, the information of the returned original file includes: a name of the original file, an identifier of the original file, an identifier of the first UCD server, and a number of file blocks in which the original file is divided; Sending the name of the original file and the identifier of the original file to the first terminal, and storing Said information of the original document is returned; or transmitting information of the original document to the first terminal.

With reference to the second possible third possibility of the first aspect of the embodiment of the present invention, the file block information further includes a file block identifier bit, and the file is sent to the first UCD server according to the identifier of the first UCD server. Before the block query request, the first CSP server further determines that the file block identifier is an original file split identifier.

In conjunction with the second possible or third possible fourth possibility of the first aspect of the embodiments of the present invention, The download request further includes: the number of file blocks in which the original file is divided, and the identifier of the first UCD server; the first CSP server determines that the original file corresponding to the identifier of the original file is divided, And obtaining the identifier of the first unified cloud disk UCD server, where: the first CSP server determines that the number of file blocks in which the original file is divided is greater than 1, and acquires the first UCD server from the file download request. Or the first CSP server determines that the original file corresponding to the identifier of the original file is fragmented, and obtains the identifier of the first unified cloud disk UCD server, specifically: the first CSP server is according to the original The identifier of the file obtains the stored information of the original file corresponding to the identifier of the original file, where the information of the original file includes: an identifier of the original file and an identifier of the first UCD server and a number of file blocks in which the original file is divided; Determining that the number of file blocks in which the original file is divided is greater than 1, and from the original file Acquiring first identification information of the UCD server.

With reference to any of the above-mentioned possible fifth possibilities of the first aspect of the embodiments of the present invention, the method further includes:

Receiving an upload block request sent by the first UCD server; the uploading block requesting a file block including the original file, file block information generated by the first UCD server, and the user in the first CSP server Registration information; storing the file block, and mapping the file block information and the registration information of the user at the first CSP server.

With reference to any of the above-mentioned possible sixth possibilities of the first aspect of the embodiments of the present invention, the method further includes:

Receiving a file deletion request sent by the first terminal, where the file deletion request carries an identifier of the file to be deleted;

Determining, by the first CSP server, that the file to be deleted corresponding to the identifier of the file to be deleted is divided, and acquiring an identifier of the second UCD server that uploads the file block of the file to be deleted; Sending, by the identifier of the second UCD server, the file deletion request to the second UCD server, where the file deletion request is used to instruct the second UCD server to send the file block to the fourth CSP server that stores the file block of the file to be deleted. Delete the request and receive the fourth CSP After the file block returned by the server deletes the response, the file information of the file to be deleted stored by the second UCD server is deleted and a file deletion response is returned to the first CSP server;

The first CSP server receives the file deletion response returned by the second UCD server, and sends the file deletion response to the first terminal.

With reference to the sixth possible seventh possibility of the first aspect of the embodiment of the present invention, the file deletion request further includes: a number of file blocks to be deleted, and an identifier of the second UCD server; the first CSP The server determines that the file corresponding to the identifier of the file to be deleted is divided, and the identifier of the second UCD server is obtained: the first CSP server determines that the file to be deleted in the file deletion request is divided. The number of file blocks is greater than 1, and the identifier of the second UCD server is obtained from the file deletion request; or the first CSP server determines that the file corresponding to the identifier of the file to be deleted is divided. And obtaining the identifier of the second UCD server, where the identifier of the file to be deleted corresponding to the identifier of the file to be deleted is obtained by the first CSP server according to the identifier of the file to be deleted, where the information needs to be deleted. The information of the deleted file includes: an identifier of the file to be deleted, an identifier of the second UCD server, and the file to be deleted. a number of the divided file blocks; the first CSP server determines that the number of the file blocks to be deleted that are to be deleted is greater than 1, and obtains the identifier of the second UCD server from the information of the file to be deleted. .

A second aspect of the embodiments of the present invention provides a file providing method, including: a unified cloud disk UCD server receives a file obtaining request sent by a first cloud service provider CSP server, where the file obtaining request carries an identifier of an original file; The identifier of the original file is used to obtain the stored information of the original file corresponding to the identifier of the original file, where the information of the original file includes the identifier of the second CSP server storing the file block, and the file block identifier stored by the second CSP server. The order of the file blocks in the original file; obtaining, according to the identifier of the second CSP server, the second CSP server indicated by the identifier of the second CSP server, corresponding to the file block identifier stored by the second CSP server a file block; merging each of the file blocks acquired from the second CSP server into the original file according to the order of the file blocks acquired from the second CSP server in the original file, And providing the original file to the first terminal.

With the first possibility of the second aspect of the embodiment of the present invention, the providing the original file to the first terminal includes: returning a file acquisition response to the first CSP server, where the file acquisition response carries the original file; The file acquisition response is used to indicate that the first CSP server receives the file acquisition response and sends the file to the first terminal; or returns a file acquisition response to the first CSP server, where the file acquisition response carries the location Decoding a storage address of the original file in the UCD server; the file obtaining response is used to instruct the first CSP server to send the file acquisition response to the first terminal, and instructing the first terminal to perform the The storage address acquires the original file.

With reference to the second aspect of the embodiment of the present invention or the first possible second possibility, after the second terminal is logged in by the user in the registration information of the UCD server, the method further includes: receiving, sending, by the second terminal a file upload request, the file upload request carries the size of the original file that the user needs to upload; obtains the information of the third CSP server registered by the user; and according to the information of the third CSP server and the size information of the original file Determining a second CSP server for uploading the file block of the original file, and after receiving the original file sent by the second terminal, uploading the file block of the original file to the second CSP server.

With reference to the second possible third possibility of the second aspect of the embodiment of the present invention, the information of the third CSP server includes the available storage space of the user in the third CSP server and the maximum supported by the third CSP server. Determining, according to the information of the third CSP server and the size information of the original file, the second CSP server for uploading the file block of the original file is: determining that the available storage space is larger than the original file a size, and a third CSP server whose size of the largest file supported by the third CSP server is larger than the size of the original file as a second CSP server for uploading a file block; the uploading the file block to the second The CSP server is specifically: uploading the original file as a file block to the second CSP server; or determining, according to the information of the third CSP server and the size information of the original file, a file block for uploading the original file The second CSP server is specifically configured to: determine that the available storage space is greater than at least two of the maximum file size supported by the third CSP server. a third CSP server as a block for uploading files a second CSP server, dividing the original file into at least two file blocks according to the determined size of a maximum file supported by the at least two second CSP servers, and uploading the at least two file blocks to the At least two second CSP servers, the size of the file block is smaller than the size of the largest file supported by the second CSP server.

With reference to the second possible third possibility of the second aspect of the embodiment of the present invention, after receiving the original file sent by the second terminal and uploading the file block of the original file to the second CSP server The method further includes: storing information of the original file, where the information of the original file includes: an identifier of the original file, a number of file blocks in which the original file is divided, and a file block identifier of each file block, and storing the respective The identifier of the second CSP server of the file block, and the order of the file blocks in the original file.

With reference to the third possible fourth possibility of the second aspect of the embodiment of the present invention, the method further includes: determining an identifier, a file block identifier, and a file of the UCD server according to the identifier of the second CSP server storing the file block. The order of the blocks in the original file is sent to the second CSP server.

With reference to any of the foregoing possible fifth possibilities of the second aspect of the embodiments of the present invention, the method further includes: receiving a file deletion request sent by the first CSP server, where the file deletion request carries an identifier of the file to be deleted; The identifier of the file to be deleted is obtained by the identifier of the file to be deleted corresponding to the identifier of the file to be deleted, and the information of the file to be deleted includes the fourth CSP storing the file block of the file to be deleted. An identifier of the server, an identifier of the file block stored by each fourth CSP server, and a file block deletion request is sent to the fourth CSP server according to the identifier of the fourth CSP server, where the file block deletion request carries the An identifier of a file stored by the four CSP servers, where the file deletion request is used to instruct the fourth CSP server to delete information about a file block and a file block corresponding to the file block identifier stored by the fourth CSP server; a file block deletion response sent by the fourth CSP server; deleting the information of the file to be deleted stored by the UCD server, and CSP server returns a response to the file deletion, the deletion response indicating that the first file CSP server deletion response to the first terminal transmits the file. The third aspect of the embodiment of the present invention provides a cloud service provider CSP server, including: a receiving unit, configured to: after the first terminal logs in to the CSP server by using registration information of the CSP server by the user, and the CSP server Receiving a file download request sent by the first terminal, the file download request carrying the identifier of the original file, and sending the identifier of the original file to the determining acquiring unit, in the process of providing the service to the first terminal; Determining an obtaining unit, configured to receive an identifier of the original file sent by the receiving unit, determine that an original file corresponding to the identifier of the original file is divided, and obtain a first unified file block that uploads the original file An identifier of the cloud disk UCD server, and sending the identifier of the first UCD server to the sending unit, where the sending unit is configured to receive the identifier of the first UCD server sent by the determining receiving unit, and according to the first The identifier of the UCD server sends a file acquisition request to the first UCD server, where the file acquisition request carries An identifier of the original file; the file obtaining request is used to instruct the first UCD server to obtain information of the stored original file according to the identifier of the original file, and according to the information file block corresponding to the information of the metadata file An identifier of the second CSP server, acquiring a file block from the second CSP server indicated by the identifier of the second CSP server, and synthesizing the obtained file block into an original file; the receiving unit is further configured to receive the first The file returned by the UCD server obtains a response, and sends the file acquisition response to the sending unit, where the sending unit is further configured to receive a file obtaining response sent by the receiving unit, and send the file obtaining response to the The first terminal is configured to instruct the first terminal to acquire the original file by using the file acquisition response.

In combination with the first possibility of the foregoing third aspect, the server further includes a storage unit, and the receiving unit is further configured to: before receiving the file download request sent by the first terminal, receive the query request sent by the first terminal, And sending the query request to the determining acquiring unit; the determining obtaining unit is further configured to receive the query request sent by the receiving unit, and obtain the foregoing according to the registration information of the user in the first CSP server File block information stored by the user in the storage unit, the file block information includes an identifier of the first UCD server, and an identifier of an original file to which the file block belongs, and the identifier of the original file and the first UCD server standard The sending unit is further configured to receive the identifier of the original file sent by the determining acquiring unit and the identifier of the first UCD server, according to the identifier of the first UCD server The first UCD server sends a file block query request, where the file block query request includes an identifier of the original file to which the file block belongs; the receiving unit is further configured to receive the original file returned by the first UCD server The information of the returned original file includes: a name of the original file, an identifier of the original file, an identifier of the first UCD server, and a number of file blocks in which the original file is divided, and the information of the original file is sent to the a transmitting unit and a storage unit; the storage unit is configured to receive information of an original file sent by the receiving unit, and store information of the original file; the sending unit is further configured to receive the sending by the receiving unit The information of the original file, and the name of the original file in the information of the original file and the original ID file is transmitted to the first terminal, or the original document information transmitted to the first terminal.

Combining the first possible second possibility of the foregoing third aspect, the file block information further includes a file block identifier bit; the sending unit sends a file block query to the first UCD server according to the identifier of the first UCD server Before the request, the determining obtaining unit further determines that the file block identifier bit is an original file split identifier.

Combining any of the above possible third possibilities of the third aspect of the embodiments of the present invention,

The file download request further includes: a number of file blocks in which the original file is divided, and an identifier of the first UCD server; the determining obtaining unit determines that the original file corresponding to the identifier of the original file is divided, and Obtaining the identifier of the first unified cloud disk UCD server is: the first CSP server determines that the number of file blocks in which the original file is divided is greater than 1, and obtains the identifier of the first UCD server from the file download request ; or

The determining the obtaining unit determines that the original file corresponding to the identifier of the original file is fragmented, and obtains the identifier of the first unified cloud disk UCD server, which is specifically: the first CSP server obtains the storage according to the identifier of the original file. The information of the original file corresponding to the identifier of the original file, the information of the original file includes: an identifier of the original file and an identifier of the first UCD server And the number of file blocks in which the original file is divided; the first CSP server determines that the number of file blocks in which the original file is divided is greater than 1, and acquires the identifier of the first UCD server from the information of the original file.

Combining any of the above possible fourth possibilities of the third aspect of the embodiments of the present invention,

The receiving unit is further configured to receive an upload block request sent by the first UCD server; the upload block request includes a file block of the original file and file block information generated by the first UCD server, and the user Registration information at the first CSP server;

The storage unit is further configured to receive an upload block request sent by the receiving unit, store the file block, and store the file block information and the registration information of the user at the first CSP server.

With reference to any of the foregoing possible fifth possibilities of the third aspect of the embodiments of the present invention, the receiving unit is further used for a file deletion request sent by the first terminal, where the file deletion request carries the identifier of the file to be deleted, Sending an identifier of the file to be deleted to the determining acquiring unit;

The determining obtaining unit is further configured to receive an identifier of the file to be deleted that is sent by the receiving unit, determine that the file to be deleted corresponding to the identifier of the file to be deleted is divided, and obtain the uploaded content to be deleted. An identifier of the second UCD server of the file block of the file, and sending the identifier of the second UCD server to the sending unit;

The sending unit is further configured to receive the identifier of the second UCD server that is sent by the determining acquiring unit, and send the file deletion request to the second UCD server according to the identifier of the second UCD server, where the file deletion request is sent And a method for instructing the second UCD server to send a file block deletion request to a fourth CSP server that stores the file block of the file to be deleted, and deleting the file block deletion response returned by the fourth CSP server The second UCD server stores the information of the file to be deleted and returns a file deletion response to the first CSP server;

The receiving unit is further configured to receive the file deletion response returned by the second UCD server, and send the file deletion response to the sending unit;

The sending unit is further configured to receive the file deletion response sent by the receiving unit, And sending a file deletion response to the first terminal.

With reference to the fifth possible sixth possibility of the third aspect of the embodiment of the present invention, the file deletion request further includes: a number of file blocks to be deleted, and an identifier of the second UCD server; the determining acquisition unit Determining that the original file corresponding to the identifier of the file to be deleted is divided into blocks, and obtaining the identifier of the second UCD server is: determining that the number of file blocks to be deleted in the file deletion request is greater than 1 And obtaining an identifier of the second UCD server from the file deletion request; or

The determining the obtaining unit determines that the file corresponding to the identifier of the file to be deleted is divided into blocks, and the identifier of the second UCD server is obtained: the first CSP server obtains the storage according to the identifier of the file to be deleted. The information of the file to be deleted corresponding to the identifier of the file to be deleted, the information of the file to be deleted includes: the identifier of the file to be deleted, the identifier of the second UCD server, and the deleted The number of file blocks to be divided by the file; determining that the number of file blocks to be deleted in the file to be deleted is greater than 1, and obtaining the identifier of the second UCD server from the information of the file to be deleted.

A fourth aspect of the present invention provides a unified cloud disk UCD server including:

a receiving unit, configured to receive a file obtaining request sent by the first cloud service provider CSP server, where the file obtaining request carries an identifier of the original file, and sends the identifier of the original file to the determining acquiring unit;

The determining obtaining unit is configured to receive an identifier of the original file sent by the receiving unit, and obtain, according to the identifier of the original file, information about an original file that is stored corresponding to the identifier of the original file, where the original file is The information includes an identifier of the second CSP server storing the file block, a file block identifier stored by the second CSP server, and an order of the file block in the original file; and from the second according to the identifier of the second CSP server a second CSP server indicated by the identifier of the CSP server acquires a file block corresponding to the file block identifier stored by the second CSP server; and the transmitting unit is configured to receive the file block sent by the determining obtaining unit and the File block In the order in the original file, each file block acquired from the second CSP server is merged into the original file according to the order of the file blocks in the original file, and the original file is provided to the first terminal .

With reference to the first possibility of the fourth aspect of the present invention, the sending unit provides the original file to the first terminal, specifically:

Returning a file acquisition response to the first CSP server, the file acquisition response carrying the original file; the file acquisition response is used to indicate that the first CSP server receives the file acquisition response and sends the file to the first terminal; Or

Returning a file acquisition response to the first CSP server, where the file acquisition response carries a storage address of the original file at the UCD server; and the file acquisition response is used to instruct the first CSP server to acquire the file Sending a response to the first terminal, and instructing the first terminal to acquire the original file according to the storage address.

With the fourth aspect of the present invention or the first possible second possibility, the receiving unit is further configured to receive, by the second terminal, the second terminal, after the user logs in to the UCD server by using the registration information of the UCD server. a file upload request, where the file upload request carries the size of the original file that the user needs to upload;

The determining obtaining unit is further configured to acquire information of a third CSP server that is registered by the user, and determine, according to information of the third CSP server and size information of the original file, a file block for uploading the original file. Two CSP servers;

The receiving unit is further configured to receive an original file sent by the second terminal, and send the original file to the sending unit;

The sending unit is further configured to receive the original file sent by the receiving unit, and upload the file block of the original file to the second CSP server determined by the determining acquiring unit.

According to a second possible third aspect of the fourth aspect of the present invention, the information of the third CSP server includes the available storage space of the user in the third CSP server and the third CSP server The maximum size of files supported;

Determining, by the determining obtaining unit, the second CSP server for uploading the file block of the original file according to the information of the third CSP server and the size information of the original file is: determining that the available storage space is larger than the size of the original file. And the third CSP server whose size of the largest file supported by the third CSP server is larger than the size of the original file is determined as the second CSP server determined by the unit for uploading the file block, specifically: using the original file as And the determining, the obtaining unit determines, according to the information of the third CSP server and the size information of the original file, a second CSP server for uploading the file block of the original file. And determining: at least two third CSP servers whose available storage space is larger than a size of a maximum file supported by the third CSP server as a second CSP server for uploading a file block, according to the determined at least two second CSPs The size of the largest file supported by the server divides the original file into at least two files Block, the size of the file block is smaller than the maximum CFS server supported by the second CSP server, and the second CSP server is specifically: uploading the at least two file blocks to the at least two second CSP servers respectively .

In conjunction with the third possible fourth possibility of the fourth aspect of the present invention, the server further includes a storage unit;

The storage unit is configured to store information of the original file, where the information of the original file includes: an identifier of the original file, a number of file blocks in which the original file is divided, and a file block identifier of each file block, and storing the respective The identifier of the second CSP server of the file block, and the order of the file blocks in the original file.

With reference to the fourth possible fifth possibility of the fourth aspect of the present invention, the sending unit is further configured to: identify, file, and file the UCD server according to the identifier of the second CSP server that stores the file block stored by the storage unit The block identification and the order of the file blocks in the original file are sent to the second CSP server. With reference to any of the possible sixth possibilities of the fourth aspect of the present invention, the server further includes a deleting unit;

The receiving unit is further configured to receive a file deletion request sent by the first CSP server, where the file deletion request carries an identifier of the file to be deleted;

The determining obtaining unit is further configured to: obtain, according to the identifier of the file to be deleted, information about a file to be deleted corresponding to the identifier of the file to be deleted stored by the storage unit, and information about the file to be deleted The identifier of the fourth C SP server storing the file block of the file to be deleted, the identifier of the file block stored by each fourth CSP server, and transmitting the information of the file to be deleted to the sending unit;

The sending unit is further configured to receive information about the file to be deleted that is sent by the determining acquiring unit, and send a file block deletion request to the fourth CSP server according to the identifier of the fourth CSP server, where the file block is deleted. The request carries the identifier of the file stored by the fourth CSP server, where the file deletion request is used to instruct the fourth CSP server to delete the file block and the file block corresponding to the file block identifier stored by the fourth CSP server. Information;

The receiving unit is further configured to receive a file block deletion response sent by the fourth CSP server;

The deleting unit is configured to delete information about the file to be deleted stored by the storage unit; the sending unit is further configured to return a file deletion response to the first CSP server, where the file deletion response is used to indicate the first CSP The server sends the file deletion response to the first terminal.

A fifth aspect of the embodiments of the present invention provides a CSP server, including: a transceiver, a memory, and a processor;

The transceiver is configured to receive, after the first terminal logs in to the CSP server by using registration information of the CSP server by the user, and the CSP server provides a service to the first terminal, receiving, by the first terminal, a file download request, where the file download request carries an identifier of the original file;

The memory is configured to store various programs and applications, and execute each of them under the call of the processor Program and application functions;

The processor is configured to call various programs and applications stored in the memory, and determine that the original file corresponding to the identifier of the original file is divided into blocks, and obtain a first unified cloud disk UCD server that uploads the file block of the original file. And sending a file acquisition request to the first UCD server according to the identifier of the first UCD server, where the file acquisition request carries an identifier of the original file; and the file obtaining request is used to indicate the first UCD server Obtaining information of the stored original file according to the identifier of the original file, and according to the identifier of the second CSP server storing the file block in the information of the original file, the second CSP server indicated by the identifier of the second CSP server Obtaining a file block, and synthesizing the obtained file block into an original file;

The transceiver is further configured to send a file acquisition response returned by the first UCD server, and send the file acquisition response to the first terminal, to instruct the first terminal to acquire the file by using the file acquisition response. Original file.

A fifth aspect of the embodiments of the present invention provides a UCD server, including: a transceiver, a memory, and a processor;

The transceiver is configured to receive a file acquisition request sent by a first cloud service provider CSP server, where the file acquisition request carries an identifier of the original file;

The memory is used in various programs and applications, and functions of the programs and applications are executed under the call of the processor;

The processor is configured to invoke various programs and applications stored in the memory, and obtain, according to the identifier of the original file, information of the original file that is stored corresponding to the identifier of the original file, where the information of the original file includes a file block. An identifier of the second CSP server, a file block identifier stored by the second CSP server, and an order of the file block in the original file, according to the identifier of the second CSP server, indicating from the identifier of the second CSP server The second CSP server acquires a file block corresponding to the file block identifier stored by the second CSP server; according to the order of the file blocks acquired from the second CSP server in the original file, each will be from the second CSP The file blocks acquired by the server are merged into the original file; The transceiver is further configured to provide the original file to the first terminal.

Through the above solution, it can be seen that, in the process of using the service provided by the CSP server, the terminal does not need to establish a connection with the UCD server, and the connected file with the CSP server can obtain the blocked file uploaded by the user through the UCD server. After that, the process of establishing a connection between the terminal and the UCD server is further avoided, and the user operation is reduced, thereby improving the user experience.

BRIEF DESCRIPTION OF THE DRAWINGS In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some implementations of the present invention. For example, other drawings may be obtained from those skilled in the art without any inventive labor.

FIG. 1 is a flowchart of a method for downloading a file according to an embodiment of the present invention;

2 is a flowchart of a method for a terminal to upload a file through a UCD client according to an embodiment of the present invention; FIG. 3 is a schematic diagram of an original file A and an original file B uploaded by a terminal through a UCD server through a UCD client according to an embodiment of the present invention; FIG. 4 is a flowchart of a method for acquiring user information stored in each C SP server file when a user logs in to the CSP server B through a terminal according to an embodiment of the present invention; FIG. 5 is a CSP server provided to the user by the CSP server and stored in the CSP. a schematic diagram of the server's files;

FIG. 6 is a flowchart of a method for acquiring a file uploaded by a UCD server according to an embodiment of the present invention;

FIG. 7 is a flowchart of a method for deleting a file by a CSP server according to an embodiment of the present invention; FIG. 8 is a flowchart of a method for providing a file according to an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a CSP server according to an embodiment of the present invention;

FIG. 10 is another schematic structural diagram of a CSP server according to an embodiment of the present disclosure; FIG. 11 is a schematic structural diagram of a UCD server according to an embodiment of the present disclosure;

FIG. 12 is another schematic structural diagram of a UCD server according to an embodiment of the present invention.

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. example. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

FIG. 1 is a flowchart of a method for downloading a file according to an embodiment of the present invention, including the following steps: Step 101: In a process of providing a service to a first terminal, the first CSP server receives a file download request sent by the first terminal, where the file is sent The download request carries the identifier of the original file;

Step 102: The first CSP server determines that the original file corresponding to the identifier of the original file is divided, and obtains an identifier of the unified cloud disk UCD server.

Step 103: The first CSP server sends a file acquisition request to the UCDe server according to the identifier of the UCD server, where the file acquisition request carries an identifier of the original file, where the file acquisition request is used to indicate The UCD server obtains the information of the stored original file according to the identifier of the original file, and indicates the identifier of the second CSP server according to the identifier of the second C SP server corresponding to the file block in the information of the original file. The second CSP server obtains a file block, and synthesizes the obtained file block into an original file;

Step 103: The first CSP server receives a file acquisition response returned by the UCD server, and sends the file acquisition response to the first terminal, to instruct the first terminal to acquire the file by using the file acquisition response. The original document.

As can be seen from the above embodiment, it can be seen that, in the process of using the service provided by the CSP server, the terminal does not need to establish a connection with the UCD server, and the connection with the CSP server can be obtained through the user through the UCD. After the server uploads the blocked file, the process of establishing a connection between the terminal and the UCD server is avoided, thereby reducing user operations and thereby improving user experience.

Further, the acquiring, by the first terminal, the original file by using the file obtaining response is: the file obtaining response carrying the original file, where the first terminal acquires the original file from a file obtaining response; or And the file obtaining response carries the storage address of the original file in the first UCD server; the first terminal acquires the original file from the first UCD server according to the storage address.

It should be noted that, in the embodiment of the present invention, for convenience of description, the UCD server that receives the file deletion request is referred to as a second UCD server, and the UCD server that receives the download request and the file upload request is referred to as a first UCD server. The CSP server registered by the user is referred to as a third CSP server, and the CSP server that is used by the user to register the CSP server for storing the original file is referred to as a second CSP server. The CSP server that will store the original file (the file to be downloaded) is called the second CSP server, and the CSP server that stores the file to be deleted is called the fourth CSP server. The identifier of the file to be uploaded or to be downloaded is called the identifier of the original file. The identifier of the file to be deleted is called the identifier of the file to be deleted. The information corresponding to the identifier of the original file is called the information of the original file, and will be deleted. The information corresponding to the identifier of the file is called the information of the file to be deleted. The terminal connected to the CSP server is referred to as a first terminal, and the terminal connected to the UCD server is referred to as a second terminal.

2 is a flowchart of a method for restoring session content transmission according to an embodiment of the present invention, including the following steps:

Step 200: The second terminal sends a file upload request to the first UCD server by using the UCD client, where the file upload request carries the size information of the original file that the user needs to upload.

Before performing this step, the terminal logs in to the first UCD server by using the registration information of the user on the first UCD server. It is worth noting that the terminal in the process of the present invention is connected to the UCD server, that is, the UCD client is installed. The terminal is called a second terminal.

Step 201: The first UCD server acquires information about the CSP server that the user has registered. Specifically, the first UCD server stores the registration information of the user at the third CSP server. As described above, in the embodiment of the present invention, the CSP server registered by the user is collectively referred to as a third CSP service. Device. The registration information of the user at the third CSP server includes an identifier of the third CSP server (such as a connection address of the third CSP server), an account name and a password registered by the user at the third CSP server. The first UCD server acquires information of the third CSP server from the third CSP server according to the registration information of the user at the third CSP server, where the information of the third CSP server includes the user's availability at the CSP server. Storage space, maximum file size supported by the third CSP server, and/or connection speed of the third CSP server.

In this embodiment, it is assumed that the user is registered at the CSP server A and the CSP server B respectively. Therefore, the first UCD server stores the registration information of the user on the CSP server A, the CSP server B, and the CSP server C, and respectively sends the registration information to the CSP server A. And CSP server B obtains information of CSP server A and CSP server B. CSP Server A, CSP Server C and CSP Server B are referred to as the third CSP server.

Step 202: The first UCD server determines, according to the information of the third CSP server and the size information of the original file, a second CSP server for uploading the file block of the original file.

Step 203: The first UCD server requests a response to the upload file sent by the second terminal.

Step 204: The second terminal uploads the original file to the UCD server.

Step 205: The first UCD server divides the original file, that is, blocks the original file.

After the file upload is completed, the first UCD server blocks the original file according to the determined information of the second CSP server, and generates information of the original file, such as Metadata of the original file, and saves the information of the original file in the first UCD server.

As an example, the information of the third CSP server includes the available storage space of the user at the third CSP server and the size of a maximum file supported by the third CSP server; The information and the size information of the original file determine the second CSP server for uploading the file block of the original file, specifically: determining that the available storage space is larger than the size of the original file, and the maximum file supported by the third CSP server The third CSP server whose size is larger than the size of the original file is used as the second CSP server for uploading the file block; the uploading the file block to the second CSP server is specifically: using the original file as a file block And being sent to the second CSP server; or determining, according to the information of the third CSP server and the size information of the original file, the second CSP server for uploading the file block of the original file is: determining available storage At least two third CSP servers having a larger space than a maximum file size supported by the third CSP server as a second CSP server for uploading a file block, according to the determined maximum file supported by the at least two second CSP servers The size of the original file is divided into at least two file blocks, and the at least two file blocks are respectively uploaded to the at least two second CSP servers, the size of the file block is smaller than the second CSP server The size of the largest file supported.

For example, in this embodiment, the first UCD server determines that the CSP server A and the CSP server in the three CSP servers (ie, the third CSP server) registered by the user serve as the second CSP server that stores the file block, and then the original The file is divided into two file blocks. The size of each file is smaller than the maximum file size supported by CSP server A or smaller than the maximum file size supported by CSP server B.

Further, the UCD server storing the information of the original file may include: storing information of the original file, where the information of the original file includes: an identifier of the original file, a number of file blocks in which the original file is divided, and a file block of each file block And an identifier of the second CSP server storing the file blocks, and an order of the file blocks in the original file.

Optionally, the information of the original file stored by the first UCD server may further include the size of the original file and the time when the original file is modified. It should be noted that, in the embodiment of the present invention, the original file refers to a file sent by the second end to the first UCD server.

Specifically, the information of the original file is shown in Table 1:

Table 1 Information of the original file Parameter Chinese name description

MetadatalD raw file can be server-assigned metadata

Identification

Filename original file original file name

The name

ModifiedTime Original file The time of the last modification of the file

Revised period

Size Original file The file size of the original file

Size

ChunkNum Number of file blocks The number of file blocks, this parameter is not stored when the file is not partitioned.

The value in 1 is 1, when the file is divided, the value of this parameter is the number of specific file blocks.

Chunklnfo file block letter file block related information (Chunklnfo may have multiple, depending on the number of ChunkNum) The file block information contained in the original file information Chunklnfo includes: File block identifier (identifiable to identify the file block), storage The CSP information of the file block (such as the name of the CSP, or the address of the CSP) and the order of the file blocks in the original file. Further, the file block information may further include a file block size and other file block information, such as a file block name, and the like, which is not limited herein. In addition, for the file block identifier, if the first UCD server does not block the original file, the file block identifier may also be the identifier of the original file. Specifically, the file block information can be as shown in Table 2: Table 2. File block information

ChunkName file block file block name

Name

CSPInfo CSP service The identifier of the second CSP server storing the file block, such as the name of the CSP name, the URI of the CSP, etc.

Knowledge

Seq file block The order of the file blocks in the original file, used to restore the original file at the beginning

In the file

Order

Size file block size of the file block

The UCD server generates information Chunkdata of the file block for each file block based on the information of the original file. Specifically, the file block information includes: a file block identifier, a file block source (such as information of a first UCD server that sends a file block to the CSP), and an identifier of the original file to which the file block belongs. Further, the information of the file block may further include a file block identifier bit to indicate whether it is a divided file block or an original file. The information contained in the file block is as shown in Table 3:

File block information

As an example, when the UCD server delivers the original file to the second CSP server, that is, the UCD does not block the original file, the file block identifier is the identifier of the original file, and the file block identifier bit takes a value of 0. When the UCD server passes the split file block to the second CSP server: The file block identifier bit has a value of 1

Step 206 or 206, , the first UCD server requests the server by uploading a block

UploadChimkRequest uploads a file block to a second CSP server, wherein the upload block request includes a file block of the original file, file block information generated by the first UCD server, and registration of the user at the first CSP server information.

Specifically, the first UCD server uploads the file block to the second CSP server according to the CSP server identifier in the information of the original file. Further, the upload block request also carries the account name and password registered by the user on the second CSP server.

Step 207 or 207, after receiving the Chunkdata data corresponding to the file block and the file block, the second CSP server verifies the first UCD server according to the account name and password in the upload block request, and stores the file block after the verification is passed. And mapping the file block information and the registration information of the user on the first CSP server, and returning a server upload block response server UploadChimkResponse message to the UCD server.

After the UCD server sends different file blocks and Chunkdata data to different second CSP servers, and receives all corresponding return confirmation messages, it is confirmed that different file blocks of the original file have been separately stored to different second CSP servers. At the office.

As an alternative, the first UCD server first establishes a connection with the second CSP server by using the account information registered by the user on the CSP server before performing step 206 or 206, and then sends an upload block request to the CSP server through the connection. And uploading a file block, so that the second CSP server stores the file block, and storing the file block information and the registration information of the user on the first CSP server, and returning a server upload block response server to the UCD server. UploadChunkResponse message.

As an example, suppose the terminal needs to store the file in the CSP server: /home/test/A, Referred to as the original file A. The UCD client sends an upload file request message to the first UCD server, where the upload file request message carries the size information of the UCD server original file, /home/test/A. After receiving the upload file request message sent by the terminal through the UCD client, the first UCD server queries the information of the third CSP server registered by the user according to the account name registered by the user on the UCD server. In this example, the user is registered in CSP server A, CSP server B, and CSP server C, respectively, and the CSP server includes CSP server A, CSP server B, and CSP server C. The UCD server queries the information of the third CSP server that is registered by the user, and specifically sends: the user available resource query request to the CSP server A, the CSP server B, and the CSP server C, where the user available resource query request carries the first UCD server. The account name and password registered by the user on the CSP server. The first UCD server receives a response returned by each of the CSP server A, the CSP server B, and the CSP server C, where the response includes: a storage space available to the user in the CSP server, and a maximum file size supported by the CSP server. You can also include the connection speed. The first UCD server determines the CSP of the uploaded file to determine the second CSP server according to the description in step 202, for example, according to the acquired information of the CSP server and the size information of the original file. It is assumed that in the embodiment, the first UCD server determines to store the original file, /home/test/A, into the CSP server A, the CSP server B, and the CSP server C. Then the second CSP server includes CSP server A, CSP server B, and CSP server C. Then, the UCD server sends an upload file request response to the UCD Client, allowing the UCD Client to upload the original file /home/test/A. After receiving the original file /home/test/A uploaded by the user terminal through the UCD client, step 205 is executed, and the original file /home/test/A is divided into blocks, and the blocked file is processed through steps 206-207. Blocks A1-A3 are sent to CSP server A, CSP server B and CSP server C, respectively.

In another embodiment, the user also needs to upload the original file /home/test/B, referred to as the original file 8. The first UCD server selects the CSP server A as the second CSP server to store the original file according to the size of the original file B and the acquired information of each CSP server, and does not block the original file B. The storage diagram of the original file A and the original file B uploaded by the user through the UCD client through the first UCD server in the CSP server is shown in FIG. 3: As shown in FIG. 3, the original file A is divided into file blocks A1- via the first UCD server. After A3, it is stored to CSP server A, CSP server B and CSP server C, respectively. The original file B is only stored to the CSP server A via the first UCD server.

The first UCD server receives the original file A and then blocks it, and stores the original file A information as shown in Table 4:

Table 4 Information of the original file A

Metadatal

Df345gf56

D

Filename /home/test/ A

ModifiedT

20130312

Ime

Size 500M

ChunkNu

3

m

ChunklD 4295294298cdf

ChunkN

A1

Chunklnf ame

o[1 ] CSPInfo http://CSPA.com/clouddisk/

Seq 1

Size 200M

ChunklD 123973192feju

ChunkN

A2

Chunklnf Chunklnf ame

0 o[2] CSPInfo http://CSPB.com/clouddisk/

Seq 2

Size 120M

ChunklD 873910748wev

ChunkN

A3

Chunklnf ame

o[3] CSPInfo http://CSPC.com/clouddisk/

Seq 3

Size 180M The first UCD server receives the original file B, and the stored original file B information is shown in Table 5: Table 5 Original file B information Metadatal

542jd989a3

D

Filename /home/test /B

ModifiedT

20130402

Ime

Size 140M

ChunkNu

1

m

ChunklD 542jd989a3

ChunkN

B

Ame

Chunklnf Chunklnf

CSPInfo http://CSPA.com/cloudstorag

0 o[1 ]

e/

Seq 1

Size 140M The first UCD server after the original file A is divided into file blocks A1-A3, the information of the file blocks generated for the file blocks A1-A3 are as follows:

Table 6 Information of file block A1

Chunkl 4295294298cdf

D

ChunkB 1

It

Source http://ucd server. com/cloudstorage

Metadat df345gf56

alD Table 7 File Block A2 Information

Chunkl 123973192feju

D

ChunkB 1

It Source http://ucd server. com/cloudstorage

Metadat df345gf56

alD Table 8 File Block A3 Information

Chunkl 873910748wev

D

ChunkB 1

It

Source http://ucd server. com/cloudstorage

Metadat df345gf56

alD The first UCD server does not block the original file B, but the information of the uploaded CSP server is the original file B information.

FIG. 4 is a flowchart of a method for a terminal to obtain a file information stored by a user in each CSP server in a process of providing a service to a terminal by a CSP server after the user logs in through the terminal according to the embodiment of the present invention, including the following steps:

Step 400: The first terminal logs the CSP server B through the registration information of the CSP server B, and receives the file query request QueryRequest from the CSP server B in the process of receiving the service provided by the CSP server B, and checks the file stored by the user on the CSP server B. information. It should be noted that the terminal in this process may be a terminal that includes a UCD client, or a terminal that does not include a UCD client. For convenience of description, the terminal connected to the CSP server is referred to as a first terminal in this embodiment. The CSP server to which the first terminal is connected is referred to as a first CSP server.

Step 401: Acquire, according to registration information of the user in the first CSP server, file block information that is stored by the user in the first CSP server.

Specifically, the CSP server B queries the user store according to the registration information of the user on the CSP server B. When the Chimkdata information does not include the original file segmentation identifier, for example, when the ChimkBit is 0, indicating that the file content corresponding to the Chimkdata information is a complete file, the direct execution step is performed. 406. When the Chunkdata information includes the original file split identifier, such as when ChimkBit is 1, indicating that the file content corresponding to the Chimkdata information is a file block of a certain file, the identifier of the UCD server in the Source information according to the Chunkdata information is obtained (ie, sent) The identifier of the first UCD server of the file block to the CSP server B, such as the address of the first UCD server, and the identification of the original file as described in the file block, and step 402 is performed.

Step 402: Send a file block query request QueryChunkRequest to the first UCD server according to the identifier of the first UCD server, where the file block query request includes an identifier of the original file to which the file block belongs.

Step 403: The first UCD server obtains information about the original file stored by the first UCD server according to the identifier of the received original file. The information of the original file includes: the name of the original file, the identifier of the original file, the identifier of the first UCD server, and the number of file blocks in which the original file is divided. Optionally, the information of the original file stored by the first UCD server may further include the size of the original file and the time when the original file is modified. The first UCD server responds with a file block query

QueryChunkResponse , send the information of the original file Metadata information to the service of CSP B

Step 404: Send the name of the original file and the identifier of the original file to the first terminal, and store the information of the returned original file; or send the information of the original file to the location The first terminal is described.

As an optional method, the CSP server B can also generate a unified view according to the information of the original file received, and send the information of the original file to the terminal in a unified view.

Of course, the CSP in this process does not need to query the ChunkBit information in the ChunkData information, but obtains the original file information directly from the UCD server according to the Source information in the Chunkdata.

As an example, assume that the first terminal logs in to the CSP server A and sends a query request QueryRequest to the CSP server A. For example, the query button can be clicked on the interface provided by the CSP server. Specifically, the user terminal sends the query request to the CSP server A as a prior art, and the embodiment of the present invention will not be described in detail herein. The CSP server A obtains the file block information of the file Al, B of the user stored by the CSP server A according to the registration information of the user, such as the account name of the user. And the ChunkBit of the Chunkdata corresponding to A1 is obtained by the information of the stored file A1, that is, the file block identifier is determined to be the original file segmentation identifier, indicating that A1 is a file block after the original file is divided. The CSP server A obtains the identifier of the first UCD server and the identifier of the original file to which the file block belongs according to the information of the stored file A1, and passes the identifier of the first server http: 〃ucd server. com/cloudstora ge A UCD server sends a file block query request. The file block query request carries the identifier of the original file MetadatalD: dG45gf56. After receiving the file block query request, the UCD server obtains the Metadata information corresponding to dG45gf56 according to the identifier of the original file carried, MetadatalD: dfi45gf56, and returns the Metadata information (Filename, ModifiedTime, Size, ChunkNum) to the CSP server A. In addition, the CSP server A further obtains the information of the file B according to the account name of the user, and obtains the ChunkBit in the file block information of the file B to be 0, and determines that the file B stored by the CSP server is the original file. The CSP server generates a unified view according to the obtained information of the original file A and the file block information of the original file B, and provides the unified view to the terminal.

Specifically, in this embodiment, FIG. 5 is a schematic diagram of a file stored by the CSP server to the user stored in the CSP server. As shown in FIG. 5, the file information uploaded by the CSP and the file information uploaded by the first UCD server are divided into two parts, and the file information uploaded by the first UCD server includes: a name of the original file, Original document identification and first UCD server ID (such as the first UCD server address, etc.). Further, if the user uploads files through multiple first UCD servers, it may be separately listed for each first UCD server. This article will not be detailed. As an optional method, before obtaining the information of the original file of the stored file, the CSP may not query the ChunkBit information in the information of the file block, but directly request the corresponding UCD server according to the information of the source of the file block source. Metadata information.

FIG. 6 is a flowchart of a method for obtaining a file uploaded by a UCD server according to an embodiment of the present invention. As shown in FIG. 6, the method includes the following steps:

Step 600: The first terminal logs in to the CSP server B through the account information registered in the CSP server B, and obtains the information of the file stored by the user on the CSP server. After FIG. 5, the file download request is sent to the CSP server B. The file download request carries the identifier of the original file and the name of the original file. Further, the file download request may further include information such as the number of file blocks (chunkNum information), and/or the identifier of the first UCD server, and the modification time of the original file.

Step 601: The CSP server B determines, according to the identifier of the original file, whether the original file corresponding to the identifier of the original file is divided into file blocks.

Specifically, if the file download request includes the file block quantity information, and the number of file blocks is less than or equal to 1, the original file corresponding to the identifier of the original file is not divided into file blocks, and the user can directly download from the CSP through the terminal. The original file is identified by the corresponding file, and the subsequent steps are no longer performed. As an alternative, if the file download request includes the file block quantity information, and the file block number is greater than 1, the file download request may further include the identifier of the first UCD server, and step 602 is performed.

As an alternative, the CSP server B obtains the stored information of the original file corresponding to the identifier of the original file according to the identifier of the original file, where the information of the original file includes: an identifier of the original file and the first An identifier of the UCD server and a number of file blocks in which the original file is divided; the first CSP server determines that the number of file blocks in which the original file is divided is greater than 1, and acquires the first UCD server from the information of the original file Logo. Then, step 602 is performed. Step 602, sending, according to the identifier of the first UCD server, to the first UCD server. a file acquisition request, the file acquisition request carrying an identifier of the original file. The file obtaining request is used to instruct the first UCD server to obtain information of the stored original file according to the identifier of the original file, and to store the identifier of the second CSP server of the file block according to the information of the original file. The second CSP server indicated by the identifier of the second CSP server acquires a file block, and synthesizes the obtained file block into an original file.

Further, the first UCD server acquires information of the original file stored in the UCD server according to the identifier of the received original file, where the information of the original file includes an identifier of the second CSP server storing the file block, and the second CSP server stores The file block identifier and the order of the file blocks in the original file.

Step 603 or step 603 ′, sending a file block download request to the second CSP server storing the file block according to the identifier of the second CSP server, where the file block download request carries a ChunkID.

Step 604 or step 604', after receiving the file block download request, the second CSP server sends a file block corresponding to ChunklD to the first UCD server, and sends a file block download response to the first UCD server.

As an alternative, the file block can be sent to the first in the file block download response

UCD server.

Step 605: The first UCD server merges the file blocks acquired from the second CSP server into the original file according to the order of the file blocks acquired from the second CSP server in the original file.

Step 606: The first UCD server obtains a response by sending a file to the CSP server B, where the file acquisition response carries the addresses of the merged file (ie, the original file) on the first UCD server, and the unified resource location of the port is obtained. Symbol: Uniform Resource Locator, URL.

Step 607: The CSP server sends a file download response to the terminal, where the file download response carries the storage address of the merged file (ie, the original file) on the first UCD server.

Step 608: The terminal acquires a file from the first UCD server by using the URL.

It is worth noting that: the first UCD server may also merge step 605 directly in step 606. The original file is sent to the CSP server B, so that the CSP server B sends the original file to the terminal in step 607. Therefore, step 608 is not executed.

As an example, after the terminal logs in to the CSP server B through the registered account information, according to the obtained schematic diagram, the user clicks the download button "Download" corresponding to the file /home/test/A to send a file download request to the CSP server A. The request in the file download request carries the identifier of the original file /home/test/A, and/or the number of file blocks (ChunkNum information). Since the ChunkNum in the request of the file is greater than 1, the CSP server B determines that the file stored by the CSP server B is a chunk file, and according to the identifier of the first UCD server included in the file download request, to the http://ucd server. .com/cloudstorage sends a file get request. The file acquisition request carries the identifier of the original file A, MetadatalD: dG45gf56. The UCD server can obtain the stored information of the original file corresponding to dG45gf56 according to MetadatalD. The UCD server determines that the original file A is divided into three file blocks according to the stored original file information, and is stored in the CSP server A, the CSP server B, and the CSP server C, respectively, according to the ChimkID of each file block, to the corresponding CSP. The server sends a file block download request to download the file blocks Al, A2, A3 from the three CSPs, respectively. Upon receiving the file blocks Al, A2, A3, the three file blocks are merged into the original file according to the corresponding order information of each file block. Then, according to the storage location of the merged complete file, a download link is generated, sent to the CSP server A, and forwarded to the terminal through the CSP server A. The terminal can download the file directly according to the link, and the file /home/test/A can be obtained.

Similarly, when the terminal logs in to the CSP server B and clicks to download the file block B, the CSP server B queries to obtain the ChunkNum corresponding to the original file B, indicating that the file is not split, and the user directly downloads the file from the CSP server B. Home/test/B. FIG. 7 is a flowchart of a method for deleting a file by using a CSP server according to an embodiment of the present invention. As shown in FIG. 7, the method includes the following steps:

Step 700: After the user logs in to the CSP server B by using the account information registered by the user on the CSP server B, the user obtains the text stored by the user on the CSP server by executing the process corresponding to FIG. 4 A schematic diagram of the device, as shown in FIG. 5, sends a file deletion request to the CSP server B, where the file deletion request carries the identifier of the file to be deleted.

Specifically, the terminal may click a delete button corresponding to a file in the schematic diagram to send a file deletion request to the first CSP server, such as CSP server B. The file deletion request contains the identifier (metadatalD) of the file to be deleted obtained from the unified view, and/or the file name of the file to be deleted, and/or the identifier of the second UCD server. Further, the file deletion request may further include a file block quantity (ChunkNum information), and/or a second UCD server identifier, and a modification time of the file to be deleted, and the like, and may also include a source (source information), the number of file blocks. ( ChunkNum information).

Step 701: The CSP server B sends a file deletion request, such as the server DelFileRequestt, to the second UCD server according to the identifier of the second UCD server included in the file deletion request. The file deletion request carries the identifier of the file to be deleted.

Specifically, before performing the step, the CSP server B determines that the file to be deleted corresponding to the identifier of the file to be deleted is divided, and acquires a second UCD server that uploads the file block of the file to be deleted. Logo.

Further, the file deletion request further includes: a number of file blocks to be deleted, and an identifier of the second UCD server; the first CSP server determines a file corresponding to the identifier of the file to be deleted And the identifier of the second UCD server is determined to be: the first CSP server determines that the number of file blocks to be deleted in the file deletion request is greater than 1, and deletes the request from the file. Obtaining an identifier of the second UCD server; or

The first CSP server determines that the file corresponding to the identifier of the file to be deleted is divided into blocks, and the identifier of the second UCD server is obtained by: the first CSP server obtains the identifier of the file to be deleted according to the identifier of the file to be deleted. The information of the file to be deleted corresponding to the identifier of the file to be deleted, the information of the file to be deleted includes: the identifier of the file to be deleted, the identifier of the second UCD server, and the deletion The number of file blocks that are divided by the file; the first The CSP server determines that the number of the file blocks to be deleted that are to be deleted is greater than 1, and obtains the identifier of the second UCD server from the information of the file to be deleted.

In step 702 or step 702, the second UCD server sends a file block deletion request to the fourth CSP server that stores the file block, such as the server DelChunkRequest, where the file block deletion request carries the identifier of the file stored by the fourth CSP server. And the file deletion request is used to instruct the fourth CSP server to delete the information of the file block and the file block corresponding to the file block identifier stored by the fourth CSP server.

Before performing the step, the second UCD server obtains, according to the identifier of the file to be deleted, information about the file to be deleted corresponding to the identifier of the file to be deleted, and the information of the file to be deleted includes storage. The identifier of the fourth CSP server of the file block of the file to be deleted, and the identifier of the file block stored by each fourth CSP server.

Step 703 or step 703, after receiving the file block deletion request, the fourth CSP server deletes the response server DelChunkResponse according to the file sending file block. Further, the file block deletion response also includes an identifier indicating whether the file deletion is successful.

Step 704: After determining that the response corresponding to the sent file block deletion request is received, the second UCD server deletes the information of the file to be deleted stored by the second UCD server, and sends a file deletion response CSPDelFileResponse to the CSP server B, where the identifier carries the identifier. Bit, the identification file is successfully deleted; specifically, before deleting the information of the file to be deleted stored by the second UCD server, the second UCD server needs to determine that all the fourth CSP servers return the file block deletion response, and the file block The delete response contains the ID of the file that was successfully deleted.

Step 705: The CSP server B sends a file deletion response DelFileResponse to the first terminal, and the identifier carries the identifier bit, and the identifier file is deleted successfully.

It can be seen from the above embodiment that, by using the embodiment of the present invention, the terminal can directly connect to the UCD server and directly connect to the CSP server, and can be managed (by downloading, deleting) by the CSP server through the UCD client. The terminal uploads to the CSP service through the UCD server. Server file. This makes it easy for users to manage files and improve the user experience. FIG. 8 is a schematic diagram of a method for providing a file according to an embodiment of the present invention, including the following steps: Step 801: A unified cloud disk UCD server receives a file obtaining request sent by a first cloud service provider CSP server, where the file obtaining request carries an original Identification of the file;

Step 802: Acquire, according to the identifier of the original file, the stored information of the original file corresponding to the identifier of the original file, where the information of the original file includes an identifier of a second CSP server storing the file block, and the second CSP server stores File block identifier and the order of the file blocks in the original file;

Step 803: Obtain, according to the identifier of the second CSP server, a file block corresponding to the file block identifier stored by the second CSP server from the second CSP server indicated by the identifier of the second CSP server;

Step 804: Combine each file block acquired from the second CSP server into the original file according to the order of the file blocks acquired from the second CSP server in the original file, and merge the original file. Provided to the first terminal.

In addition, the UCD server in this embodiment may perform any of the steps performed by the UCD server (including the first UCD server and the second UCD server) in the processes of FIG. 1 to FIG. 7, and the embodiments of the present invention are not described in detail herein.

The UCD server is provided in this embodiment, so that the terminal can also obtain the file uploaded to the CSP server through the UCD server through the CSP server, thereby improving the user experience.

FIG. 9 is a schematic structural diagram of a CSP server according to an embodiment of the present invention, including: a receiving unit 901, a determining obtaining unit 902, a sending unit 903, and a storage unit 904. specific

The receiving unit 901 is configured to: after the first terminal logs in to the CSP server by using registration information of the CSP server by the user, and the CSP server provides a service to the first terminal, receiving, by the first terminal, a file download request, where the file download request carries an identifier of the original file, and sends the identifier of the original file to the determining acquisition unit; a 902, configured to receive an identifier of the original file sent by the receiving unit, determine that an original file corresponding to the identifier of the original file is divided, and obtain a first unified cloud that uploads a file block of the original file An identifier of the disk UCD server, and sending the identifier of the first UCD server to the sending unit; the sending unit 903, configured to receive the identifier of the first UCD server sent by the determining receiving unit, and according to the first The identifier of the UCD server sends a file acquisition request to the first UCD server, where the file acquisition request carries an identifier of the original file, and the file acquisition request is used to indicate that the first UCD server is based on the identifier of the original file. Obtaining information of the stored original file, and acquiring a file block from the second CSP server indicated by the identifier of the second CSP server according to the identifier of the second CSP server corresponding to the file block in the information of the meta-start file, and The obtained file block is synthesized into an original file;

The receiving unit is further configured to receive a file acquisition response returned by the first UCD server, and send the file acquisition response to the sending unit, where the sending unit is further configured to receive file acquisition sent by the receiving unit Responding to, and sending the file acquisition response to the first terminal, to instruct the first terminal to acquire the original file by using the file acquisition response.

Further, the CSP server further includes a storage unit 904; the receiving unit 901 is further configured to: before receiving the file download request sent by the first terminal, receive a query request sent by the first terminal, and The query request is sent to the determination obtaining unit 902; the determining obtaining unit 902 is further configured to receive the query request sent by the receiving unit, and obtain the user according to the registration information of the user in the first CSP server. File block information stored by the storage unit, the file block information includes an identifier of the first UCD server, and an identifier of an original file to which the file block belongs, and the identifier of the original file and the first UCD server The identifier is sent to the sending unit 903; the sending unit 903 is further configured to receive the identifier of the original file sent by the determining acquiring unit and the identifier of the first UCD server, according to the first UCD server Identifying, by the identifier, sending a file block query request to the first UCD server, where the file block query request includes the file block Identification of the original file belongs; the information of the original document is returned to the first UCD server receiving unit 901 is further configured to receive the said return of the original The information of the file includes: a name of the original file, an identifier of the original file, an identifier of the first UCD server, and a number of file blocks in which the original file is divided, and transmits information of the original file to the sending unit 903 and the storage. The unit 904 is configured to receive information about an original file sent by the receiving unit, and store information of the original file. The sending unit 903 is further configured to receive information about an original file sent by the receiving unit. And sending the name of the original file and the identifier of the original file in the information of the original file to the first terminal, or sending the information of the original file to the first terminal.

Further, the file block information further includes a file block identifier bit; and before the sending unit 903 sends the file block query request to the first UCD server according to the identifier of the first UCD server, the determining acquiring unit further determines The file block identifier is an original file split identifier.

Further, the file download request further includes: a quantity of the file block in which the original file is divided, and an identifier of the first UCD server; the determining acquiring unit 902 determines that the original file corresponding to the identifier of the original file is And determining, by the first CSP server, that the number of file blocks in which the original file is divided is greater than 1, and acquiring the first file from the file download request. The identifier of the UCD server; or, the determining the obtaining unit 902 determines that the original file corresponding to the identifier of the original file is fragmented, and obtains the identifier of the first unified cloud disk UCD server, specifically: the first CSP server is configured according to The identifier of the original file acquires the stored information of the original file corresponding to the identifier of the original file, where the information of the original file includes: an identifier of the original file and an identifier of the first UCD server and a file block in which the original file is divided a quantity; the first CSP server determines a file block in which the original file is divided The number is greater than 1, and the identification of the first UCD server is obtained from the information of the original file.

Further, the receiving unit 901 is further configured to receive an upload block request sent by the first UCD server, where the upload block request includes a file block of the original file and file block information generated by the first UCD server, And the registration information of the user in the first CSP server; the storage unit 904 is further configured to receive an upload block request sent by the receiving unit, and store the And storing the file block information and the registration information of the user at the first CSP server.

Further, the receiving unit 901 is further configured to send, by the first terminal, a file deletion request, where the file deletion request carries an identifier of the file to be deleted, and sends the identifier of the file to be deleted to the determining acquiring unit. The determining obtaining unit 902 is further configured to receive an identifier of the file to be deleted sent by the receiving unit, determine that the file to be deleted corresponding to the identifier of the file to be deleted is divided, and obtain the required content for uploading An identifier of the second UCD server of the file block of the deleted file, and sending the identifier of the second UCD server to the sending unit; the sending unit 903 is further configured to receive the second sent by the determining acquiring unit The identifier of the UCD server sends the file deletion request to the second UCD server according to the identifier of the second UCD server, where the file deletion request is used to instruct the second UCD server to store the file of the file to be deleted. The fourth CSP server of the block sends a file block deletion request, and receives the file block returned by the fourth CSP server After deleting the response, deleting the information of the file to be deleted stored by the second UCD server and returning a file deletion response to the first CSP server; the receiving unit 901 is further configured to receive the file deletion response returned by the second UCD server, and Sending the file deletion response to the sending unit; the sending unit 902 is further configured to receive the file deletion response sent by the receiving unit, and send a file deletion response to the first terminal.

Further, the file deletion request further includes: a number of file blocks to be deleted, and an identifier of the second UCD server; and the determining obtaining unit determines an original file corresponding to the identifier of the file to be deleted And the identifier of the second UCD server is determined to be: determining that the number of file blocks to be deleted in the file deletion request is greater than 1 and obtaining the second from the file deletion request An identifier of the UCD server; or, the determining the obtaining unit 902 determines that the file corresponding to the identifier of the file to be deleted is divided into blocks, and acquiring the identifier of the second UCD server is specifically: the first CSP server according to the The identifier of the file to be deleted is obtained by the identifier of the file to be deleted, and the information of the file to be deleted includes: the identifier of the file to be deleted, and the second UCD server. Logo And determining, by the number of the file blocks to be deleted, the number of file blocks to be deleted, the number of file blocks to be deleted is greater than 1, and acquiring the second UCD server from the information of the file to be deleted. Logo.

In the above device embodiment, the storage unit may be a memory (memerry, or storage), or may be a random access memory (RAM), or may be a read only memory (ROM, -ead Only Memory). The example is not limited here.

FIG. 10 is a schematic structural diagram of a terminal according to an embodiment of the present invention, including: a transceiver 1001, a memory 1002, and a processor 1003. specific

The transceiver 1001 is configured to receive, after the first terminal logs in to the CSP server by using registration information of the CSP server by the user, and the CSP server provides a service to the first terminal, receiving the first terminal. a file download request, where the file download request carries an identifier of the original file; the memory 1002 is configured to store various programs and applications, and execute functions of the programs and applications under the call of the processor; The processor 1003 is configured to invoke, by using a memory, various identifiers of the first unified cloud disk UCD server that upload the file block of the original file, and send a file acquisition request to the first UCD server according to the identifier of the first UCD server. The file obtaining request carries an identifier of the original file, where the file obtaining request is used to instruct the first UCD server to obtain information of the stored original file according to the identifier of the original file, and according to the original file The identifier of the second CSP server storing the file block in the information, from the identifier of the second CSP server The second CSP server obtains a file block, and synthesizes the obtained file block into an original file; the transceiver 1001 is further used for a file acquisition response returned by the first UCD server, and acquires the file response Sending to the first terminal, to instruct the first terminal to acquire the original file by using the file acquisition response.

In addition, the processor 1003 may also be used to perform the steps performed by the function modules included in the CSP server or the CSP server described in FIG. 1 to FIG. 7 in the method embodiment, and the embodiments of the present invention are not described in detail herein. FIG. 11 is a unified cloud disk UCD server according to an embodiment of the present invention, including a receiving unit 1101, a determining acquiring unit 1102, a sending unit 1103, a storage unit 1104, and a deleting unit 1105. Specifically,

The receiving unit 1101 is configured to receive a file obtaining request sent by the first cloud service provider CSP server, where the file obtaining request carries the identifier of the original file, and sends the identifier of the original file to the determining obtaining unit 1102;

The determining obtaining unit 1102 is configured to receive an identifier of the original file sent by the receiving unit, and obtain, according to the identifier of the original file, information about an original file that is stored corresponding to the identifier of the original file, where the original file is The information includes an identifier of the second CSP server storing the file block, a file block identifier stored by the second CSP server, and an order of the file block in the original file; and according to the identifier of the second CSP server, from the The second CSP server indicated by the identifier of the second CSP server acquires a file block corresponding to the file block identifier stored by the second CSP server;

1103;

The sending unit 1103 is configured to receive the file block sent by the determining acquiring unit and the order of the file block in the original file, according to the order of the file block in the original file, each from the second CSP server The obtained file blocks are merged into the original file, and the original file is provided to the first terminal.

Further, the sending unit 1103 provides the original file to the first terminal, specifically: returning a file obtaining response to the first CSP server, where the file obtaining response carries the original file; and the file obtaining response is used to indicate Receiving, by the first CSP server, the file acquisition response to the first terminal; or returning a file acquisition response to the first CSP server, where the file acquisition response carries the original file in the UCD server The file acquisition response is used to instruct the first CSP server to send the file acquisition response to the first terminal, and instruct the first terminal to acquire the original file according to the storage address.

Further, the receiving unit 1101 is at the second terminal by the user at the UCD server. After the registration information is used to log in to the UCD server, the file uploading request is further received by the second terminal, where the file uploading request carries the size of the original file that the user needs to upload;

The determining obtaining unit 1102 is further configured to acquire information about a third CSP server that is registered by the user, and determine, according to information of the third CSP server and size information of the original file, a file block for uploading the original file. Second CSP server;

The receiving unit 1101 is further configured to receive the original file sent by the second terminal, and send the original file to the sending unit 1103;

The sending unit 1102 is further configured to receive the original file sent by the receiving unit 1101, and upload the file block of the original file to the second CSP server determined by the determining acquiring unit 1102.

Further, the information of the third CSP server includes the available storage space of the user at the third CSP server and the maximum file size supported by the third CSP server;

Determining, by the determining obtaining unit 1102, the second CSP server for uploading the file block of the original file according to the information of the third CSP server and the size information of the original file is: determining that the available storage space is greater than the original file. a size, and the third CSP server whose size of the largest file supported by the third CSP server is larger than the size of the original file is determined as the second CSP server determined by the acquiring unit for obtaining the file block: Uploading to the second CSP server as a file block; or, the determining obtaining unit 1102 determines a second CSP for uploading a file block of the original file according to the information of the third CSP server and the size information of the original file. The server is specifically configured to: determine at least two third CSP servers whose available storage space is larger than a size of a maximum file supported by the third CSP server as a second CSP server for uploading a file block, according to the determined at least two The size of the largest file supported by the second CSP server divides the original file into at least two file blocks. Said block is less than the size of the second file server branched CSP said determining unit determines said second acquiring CSP server is specifically: the at least two file blocks Uploaded to the at least two second CSP servers respectively.

Further, the server further includes a storage unit 1104;

The storage unit 1104 is configured to store information of the original file, where the information of the original file includes: an identifier of the original file, a number of file blocks in which the original file is divided, and a file block identifier of each file block, and storing the file The identifier of the second CSP server of each file block, and the order of the file blocks in the original file.

Further, the sending unit 1103 is further configured to: according to the identifier of the second CSP server that stores the file block stored by the storage unit 1104, the identifier of the UCD server, the file block identifier, and the file block in the original file. The order is sent to the second CSP server.

Further, the server further includes a deleting unit 1105, where the receiving unit 1101 is further configured to receive a file deletion request sent by the first CSP server, where the file deletion request carries an identifier of the file to be deleted; 1102 is further configured to obtain, according to the identifier of the file to be deleted, information about a file to be deleted that is stored in the storage unit and that is related to the identifier of the file to be deleted, where the information about the file to be deleted includes Deleting the identifier of the fourth CSP server of the file block of the file, the identifier of the file block stored by each fourth CSP server, and using the step for receiving the information of the file to be deleted sent by the determining obtaining unit, according to the The identifier of the fourth CSP server sends a file block deletion request to the fourth CSP server, where the file block deletion request carries an identifier of a file stored by the fourth CSP server, where the file deletion request is used to indicate the The fourth CSP server deletes the file block identifier corresponding to the fourth CSP server The information of the block and the file block; the receiving unit 1101 is further configured to receive a file block deletion response sent by the fourth CSP server; the deleting unit 1105 is configured to delete the file to be deleted stored by the storage unit The sending unit 1103 is further configured to return a file deletion response to the first CSP server, where the file deletion response is used to instruct the first CSP server to send the file deletion response to the first terminal.

FIG. 12 is a schematic structural diagram of a UCD server according to an embodiment of the present invention, including: a transceiver 1201. A memory 1202 and a processor 1203.

Specifically, the transceiver 1201 is configured to receive a file acquisition request sent by the first cloud service provider CSP server, where the file acquisition request carries an identifier of the original file; the memory 1202 is used for various programs and applications, and And executing, by the processor, a function of each program and an application; the processor 1203 is configured to invoke various programs and applications stored in the memory, and obtain the stored identifier of the original file according to the identifier of the original file. Corresponding information of the original file, the information of the original file includes an identifier of a second CSP server storing the file block, a file block identifier stored by the second CSP server, and an order of the file block in the original file, according to the Identifying, by the second CSP server indicated by the identifier of the second CSP server, a file block corresponding to the file block identifier stored by the second CSP server; obtaining the file from the second CSP server according to the identifier of the second CSP server The order of the file blocks in the original file, merging the file blocks acquired from the second CSP server For the original document;

The transceiver 1201 is further configured to provide the original file to the first terminal.

In addition, the processor 1203 can also be used to perform the steps performed by the UCD server described in FIG. 1 to FIG. 7 in the method embodiment, and the embodiments of the present invention are not described in detail herein.

In the above embodiments, the terminal may be various mobile terminals, such as a terminal smart phone, a tablet computer, a mobile reading device, and the like. In the above embodiment, especially in the embodiments corresponding to FIG. 9 and FIG. 11, the respective devices included in the CSP server and the UCD server are only divided according to functional logic, but are not limited to the above-mentioned division, as long as the corresponding functions can be implemented. In addition, the specific names of the devices are only for convenience of distinguishing from each other, and are not intended to limit the scope of protection of the present invention. The function of each functional module or each device of the CSP server and the UCD server of FIG. 1 to FIG. 7 can be completed by the processor of the terminal. The above is only a preferred embodiment of the present invention, but the present invention is The scope of the protection is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the present invention are covered by the scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

claims

1. A file downloading method, characterized in that, after the first terminal logs in to the first CSP server through the user's registration information on the first cloud service provider CSP server, and the first CSP server In the process of the first terminal providing services, the method includes:

The first CSP server receives the file download request sent by the first terminal, and the file download request carries the identifier of the original file; block, and obtains the file block of the first unified cloud disk UCD server that uploaded the original file. Identification; The first CSP server sends a file acquisition request to the first UCD server according to the identification of the first UCD server, and the file acquisition request carries the identification of the original file; The file acquisition request is used to indicate The first UCD server obtains the stored original file information according to the identification of the original file, and obtains the information from the second CSP server based on the identification of the second CSP server that stores the file block in the original file information. The instructed second CSP server obtains the file blocks and synthesizes the obtained file blocks into the original file;

The first CSP server receives the file acquisition response returned by the first UCD server, and sends the file acquisition response to the first terminal to instruct the first terminal to obtain the file acquisition response through the file acquisition response. Original file.

2. The method of claim 1, wherein the first terminal obtains the original file through the file acquisition response specifically as follows:

The file acquisition response carries the original file, and the first terminal acquires the original file from the file acquisition response; or

The file acquisition response carries the storage address of the original file in the first UCD server; the first terminal obtains the original file from the first UCD server according to the storage address.

3. The method of claim 1 or 2, wherein before receiving the file download request sent by the first terminal, the method further includes: Receive a query request sent by the first terminal;

Obtain the file block information stored by the user in the first CSP server according to the user's registration information in the first CSP server. The file block information includes the identification of uploading the first UCD server and the file block. Identification of the original document to which it belongs;

Send a file block query request to the first UCD server according to the identification of the first UCD server, where the file block query request contains the identification of the original file to which the file block belongs; receive the response returned by the first UCD server. The information of the original file, the information of the returned original file includes: the name of the original file, the identifier of the original file, the identifier of the first UCD server, and the number of file blocks into which the original file is divided;

Send the name of the original file and the identification of the original file to the first terminal, and store the information of the returned original file; or send the information of the original file to the first terminal.

4. The method according to claim 3, characterized in that: the file block information further includes a file block identification bit;

Before sending the file block query request to the first UCD server according to the identification of the first UCD server, the first CSP server further determines that the file block identification bit is the original file segmentation identification.

5. The method according to claim 4 or 3, characterized in that: the file download request further includes: the number of file blocks into which the original file is divided, and the identification of the first UCD server; A CSP server determines that the original file corresponding to the identifier of the original file is divided into blocks, and obtains the identifier of the first unified cloud disk UCD server. Specifically: the first CSP server determines the number of file blocks into which the original file is divided. Greater than 1, and obtain the identity of the first UCD server from the file download request; or divide into chunks, and obtain the identity of the first unified cloud disk UCD server. Specifically: the first CSP server obtains the identity of the first unified cloud disk UCD server according to the original file. The identification of the stored original file corresponding to the identification of the original file is obtained. The information of the original file includes: the identification of the original file, the identification of the first UCD server and the number of file blocks into which the original file is divided; the first CSP server determines the number of file blocks into which the original file is divided. is greater than 1, and the identity of the first UCD server is obtained from the information of the original file.

6. The method according to any one of claims 1 to 5, characterized in that, the method further includes: receiving an upload block request sent by the first UCD server; the upload block request includes file blocks of the original file. , the file block information generated by the first UCD server, and the user's registration information on the first CSP server;

Store the file block, and map and store the file block information and the user's registration information on the first CSP server.

7. The method according to any one of claims 1 to 6, characterized in that, the method further includes: receiving a file deletion request sent by the first terminal, the file deletion request carrying the identification of the file to be deleted;

The first CSP server determines that the file to be deleted corresponding to the identification of the file to be deleted is divided into blocks, and obtains the identification of the second UCD server that uploads the file blocks of the file to be deleted; according to the second The identifier of the second UCD server sends the file deletion request to the second UCD server. The file deletion request is used to instruct the second UCD server to send the file block to the fourth CSP server that stores the file block of the file to be deleted. Delete request, and after receiving the file block deletion response returned by the fourth CSP server, delete the file information of the file to be deleted stored in the second UCD server and return the file deletion response to the first CSP server;

8. The method of claim 7, wherein the file deletion request further includes: the number of file blocks into which the file to be deleted is divided, and the identifier of the second UCD server; the first CSP server determines The file corresponding to the identifier of the file to be deleted is divided into blocks, and the identifier of the second UCD server is obtained specifically as follows: The first CSP server determines the file deletion request. The number of file blocks divided by the file to be deleted in the request is greater than 1, and the identifier of the second UCD server is obtained from the file deletion request; or

The first CSP server determines that the file corresponding to the identifier of the file that needs to be deleted is divided into blocks, and obtains the identifier of the second UCD server specifically as follows: The first CSP server obtains the identifier of the file that needs to be deleted according to the identifier of the file that needs to be deleted. The stored information of the file that needs to be deleted corresponding to the identification of the file that needs to be deleted, the information of the file that needs to be deleted includes: the identification of the file that needs to be deleted, the identification of the second UCD server, and the identification of the file that needs to be deleted. The number of file blocks into which the file is divided; the first CSP server determines that the number of stored file blocks into which the file to be deleted is divided is greater than 1, and obtains the second UCD from the information about the file to be deleted The server's identity.

9. A file providing method, characterized by including:

The unified cloud disk UCD server receives the file acquisition request sent by the first cloud service provider CSP server, and the file acquisition request carries the identification of the original file;

Obtain the stored original file information corresponding to the original file identification according to the original file identification, the original file information includes the identification of the second CSP server that stores the file blocks, and the file blocks stored by the second CSP server The identification and the order of the file blocks in the original file; According to the identification of the second CSP server, obtain the file blocks stored with the second CSP server from the second CSP server indicated by the identification of the second CSP server. Identify the corresponding file blocks; merge the file blocks obtained from the second CSP server into the original file according to the order of the file blocks obtained from the second CSP server in the original file, and merge the file blocks obtained from the second CSP server into the original file. The original file is provided to the first terminal.

10. The method of claim 9, wherein: providing the original file to the first terminal includes:

Return a file acquisition response to the first CSP server, where the file acquisition response carries the original file; the file acquisition response is used to indicate that the first CSP server has received the file acquisition response and sends it to the first terminal; or

Return a file acquisition response to the first CSP server, where the file acquisition response carries the The storage address of the original file in the UCD server; the file acquisition response is used to instruct the first CSP server to send the file acquisition response to the first terminal, and instruct the first terminal according to the storage Address to obtain the original file.

11. The method of claim 9 or 10, wherein after the UCD server logs in to the second terminal through the user's registration information on the UCD server, the method further includes: receiving the message sent by the second terminal. A file upload request that carries the size of the original file that the user needs to upload;

Obtain the information of the third CSP server registered by the user;

Determine a second CSP server for uploading file blocks of the original file based on the information of the third CSP server and the size information of the original file, and after receiving the original file sent by the second terminal, The file blocks of the original file are uploaded to the second CSP server.

12. The method of claim 11, wherein the information of the third CSP server includes the user's available storage space in the third CSP server and the size of the largest file supported by the third CSP server. size;

The second CSP server that determines the file blocks for uploading the original file based on the information of the third CSP server and the size information of the original file specifically: determines that the available storage space is greater than the size of the original file, and the The third CSP server whose maximum file size supported by the third CSP server is greater than the size of the original file is used as the second CSP server for uploading file blocks; the uploading of file blocks to the second CSP server is specifically: : Upload the original file as file blocks to the second CSP server; or

Determining the second CSP server for uploading the file blocks of the original file based on the information of the third CSP server and the size information of the original file is specifically: determining that the available storage space is greater than the maximum supported by the third CSP server. The at least two third CSP servers of the size of the file serve as the second CSP server for uploading the file chunks, and the original file is divided into at least two according to the determined maximum file size supported by the at least two second CSP servers. file blocks, and upload the at least two file blocks to the at least two second CSP servers respectively, the size of the file blocks Less than the maximum file size supported by the second CSP server.

13. The method of claim 11, wherein after receiving the original file sent by the second terminal and before uploading the file blocks of the original file to the second CSP server, Methods further include:

Store the information of the original file. The information of the original file includes: the identification of the original file, the number of file blocks into which the original file is divided, the file block identification of each file block, and the second CSP that stores each file block. The identification of the server, and the order of the file blocks in the original file.

14. The method of claim 13, further comprising: according to the identification of the second CSP server storing the file block, the UCD server's identification, the file block identification and the location of the file block. The order in the original file is sent to the second CSP server.

15. The method according to any one of claims 9 to 14, characterized in that the method further includes: receiving a file deletion request sent by the first CSP server, the file deletion request carrying the identification of the file to be deleted;

Obtain the stored information of the file that needs to be deleted corresponding to the identification of the file that needs to be deleted according to the identification of the file that needs to be deleted, and the information of the file that needs to be deleted includes the third file block in which the file that needs to be deleted is stored. The identification of the four CSP servers and the identification of the file blocks stored by each fourth CSP server;

A file block deletion request is sent to the fourth CSP server according to the identification of the fourth CSP server. The file block deletion request carries the identification of the file log stored by the fourth CSP server. The file deletion request is Instructing the fourth CSP server to delete the file block and file block information corresponding to the file block identifier stored by the fourth CSP server;

Receive the file block deletion response sent by the fourth CSP server;

Delete the information of the file that needs to be deleted stored by the UCD server, and return a file deletion response to the first CSP server. The file deletion response is used to instruct the first CSP server to send the file deletion response to the first terminal. .

16. A cloud service provider CSP server, characterized by including:

A receiving unit configured to receive the file sent by the first terminal after the first terminal logs into the CSP server through the user's registration information on the CSP server and the CSP server provides services to the first terminal. Download request, the file download request carries the identifier of the original file, and sends the identifier of the original file to the determination acquisition unit;

The determination acquisition unit is configured to receive the identification of the original file sent by the receiving unit, the identification of the first unified cloud disk UCD server of the file block, and send the identification of the first UCD server to the sending unit. unit;

The sending unit is configured to receive the identification of the first UCD server sent by the determination receiving unit, and send a file acquisition request to the first UCD server according to the identification of the first UCD server, and the file acquisition request carries The identification of the original file; The file acquisition request is used to instruct the first UCD server to obtain the information of the stored original file according to the identification of the original file, and according to the first file block corresponding to the information of the original file. The identifier of the second CSP server, obtaining the file blocks from the second CSP server indicated by the identifier of the second CSP server, and synthesizing the obtained file blocks into the original file;

The receiving unit is further configured to receive the file acquisition response returned by the first UCD server, and send the file acquisition response to the sending unit. The sending unit is further configured to receive the file acquisition response sent by the receiving unit. respond, and send the file acquisition response to the first terminal to instruct the first terminal to acquire the original file through the file acquisition response.

17. The server according to claim 16, wherein the server further includes a storage unit;

The receiving unit is further configured to receive a query request sent by the first terminal before receiving the file download request sent by the first terminal, and send the query request to the determination acquisition unit;

The determination acquisition unit is further configured to receive the query request sent by the receiving unit, and based on Obtain the file block information of the user stored in the storage unit according to the user's registration information on the first CSP server. The file block information includes the identification of the first UCD server and the original file block to which the file block belongs. The identification of the file, and sending the identification of the original file and the identification of the first UCD server to the sending unit;

The sending unit is further configured to receive the identification of the original file and the identification of the first UCD server sent by the determination acquisition unit, and send the file block to the first UCD server according to the identification of the first UCD server. Query request, the file block query request includes the identification of the original file to which the file block belongs;

The receiving unit is further configured to receive the original file information returned by the first UCD server. The returned original file information includes: the name of the original file, the identifier of the original file, and the identifier of the first UCD server; The number of file blocks into which the original file is divided, and sending the information of the original file to the sending unit and the storage unit;

The storage unit is used to receive the information of the original file sent by the receiving unit and store the information of the original file;

The sending unit is further configured to receive the original file information sent by the receiving unit, and send the name of the original file and the identification of the original file in the original file information to the first terminal, Or send the information of the original file to the first terminal.

18. The server according to claim 17, wherein the file block information further includes a file block identification bit;

Before the sending unit sends a file block query request to the first UCD server according to the identification of the first UCD server, the determination and acquisition unit further determines that the file block identification bit is the original file segmentation identification.

19. The server according to any one of claims 16-18, characterized in that:

The file download request further includes: the number of file blocks into which the original file is divided, and the identification of the first UCD server; the determination and acquisition unit determines that the original file corresponding to the identification of the original file is divided into blocks, and The specific identification of the first unified cloud disk UCD server is obtained as follows: The first CSP server determines that the number of file blocks into which the original file is divided is greater than 1, and obtains the identification of the first UCD server from the file download request; or

The determination and acquisition unit determines that the original file corresponding to the identification of the original file is divided into blocks, and obtains the identification of the first unified cloud disk UCD server. Specifically: the first CSP server obtains storage according to the identification of the original file. The information of the original file corresponding to the identification of the original file, the information of the original file includes: the identification of the original file and the identification of the first UCD server and the number of file blocks into which the original file is divided; the first CSP server It is determined that the number of file blocks into which the original file is divided is greater than 1, and the identification of the first UCD server is obtained from the information of the original file.

20. The server according to any one of claims 17-19, characterized in that,

The receiving unit is further configured to receive an upload block request sent by the first UCD server; the upload block request includes file blocks of the original file and file block information generated by the first UCD server, and the user Registration information on the first CSP server;

The storage unit is further configured to receive the upload block request sent by the receiving unit, store the file block, and map and store the file block information and the user's registration information on the first CSP server.

21. The server according to any one of claims 16-20, characterized in that,

The receiving unit is further used to send a file deletion request sent by the first terminal. The file deletion request carries the identification of the file to be deleted, and sends the identification of the file to be deleted to the determination acquisition unit;

The determination and acquisition unit is further configured to receive the identification of the file to be deleted sent by the receiving unit, determine that the file to be deleted corresponding to the identification of the file to be deleted is divided into blocks, and obtain and upload the file to be deleted. The identification of the second UCD server of the file block of the file, and sending the identification of the second UCD server to the sending unit;

The sending unit is further configured to receive the identification of the second UCD server sent by the determination acquisition unit, and send the document to the second UCD server according to the identification of the second UCD server. file deletion request, the file deletion request is used to instruct the second UCD server to send a file block deletion request to the fourth CSP server that stores the file blocks of the file to be deleted, and after receiving the file block deletion request from the fourth CSP server After returning the file block deletion response, delete the information of the file to be deleted stored in the second UCD server and return the file deletion response to the first CSP server;

The sending unit is further configured to receive the file deletion response sent by the receiving unit, and send the file deletion response to the first terminal.

22. The server according to claim 21, wherein the file deletion request further includes: the number of file blocks into which the file to be deleted is divided, and the identification of the second UCD server; the determination and acquisition unit determines and The original file corresponding to the identification of the file to be deleted is divided into blocks, and obtaining the identification of the second UCD server is specifically: determining that the number of divided file blocks of the file to be deleted in the file deletion request is greater than 1, and Obtain the identification of the second UCD server from the file deletion request; or

The determination and acquisition unit determines that the file corresponding to the identifier of the file to be deleted is divided into blocks, and obtains the identifier of the second UCD server. Specifically: the first CSP server obtains storage according to the identifier of the file to be deleted. The information of the file that needs to be deleted corresponding to the identifier of the file that needs to be deleted, the information of the file that needs to be deleted includes: the identifier of the file that needs to be deleted, the identifier of the second UCD server and the file that needs to be deleted The number of file blocks into which the file is divided is determined; the number of stored file blocks into which the file to be deleted is divided is greater than 1, and the identifier of the second UCD server is obtained from the information about the file to be deleted.

23. A unified cloud disk UCD server, characterized by including:

A receiving unit, configured to receive a file acquisition request sent by the first cloud service provider CSP server, where the file acquisition request carries the identification of the original file; and send the identification of the original file to the determination acquisition unit;

The determination acquisition unit is configured to receive the identification of the original file sent by the receiving unit, Obtain the stored original file information corresponding to the original file identification according to the original file identification, the original file information includes the identification of the second CSP server that stores the file blocks, and the file blocks stored by the second CSP server The identification and the order of the file blocks in the original file; and according to the identification of the second CSP server, obtain the file stored with the second CSP server from the second CSP server indicated by the identification of the second CSP server. The file block corresponding to the block identifier; and the sending unit is used to receive the file block sent by the determination acquisition unit and the order of the file block in the original file, according to the order of the file block in the original file, Merging respective file blocks obtained from the second CSP server into the original file, and providing the original file to the first terminal.

24. The server according to claim 23, wherein the sending unit provides the original file to the first terminal specifically as follows:

Return a file acquisition response to the first CSP server. The file acquisition response carries the storage address of the original file in the UCD server; the file acquisition response is used to instruct the first CSP server to obtain the file. A response is sent to the first terminal, and the first terminal is instructed to obtain the original file according to the storage address.

25. The server according to claim 22 or 23, characterized in that,

The receiving unit is further configured to receive a file upload request sent by the second terminal after the second terminal logs in to the UCD server through the user's registration information on the UCD server. The file upload request carries the file that the user needs to upload. Original file size;

The determination and acquisition unit is further configured to obtain the information of the third CSP server registered by the user, and determine the third file block for uploading the original file according to the information of the third CSP server and the size information of the original file. 2. CSP server; The receiving unit is further configured to receive the original file sent by the second terminal, and send the original file to the sending unit;

The sending unit is further configured to receive the original file sent by the receiving unit, and upload the file blocks of the original file to the second CSP server determined by the determination acquisition unit.

26. The server according to claim 25, wherein the information of the third CSP server includes the storage space available to the user in the third CSP server and the largest file supported by the third CSP server. size;

The determination and acquisition unit specifically determines the second CSP server for uploading the file blocks of the original file based on the information of the third CSP server and the size information of the original file: determining that the available storage space is greater than the size of the original file. , and the third CSP server whose maximum file size supported by the third CSP server is greater than the size of the original file is used as the third unit for uploading file blocks. The second CSP server specifically determines: The original file is as File chunks are uploaded to the second CSP server; or

The determination and acquisition unit specifically determines the second CSP server for uploading the file blocks of the original file based on the information of the third CSP server and the size information of the original file: determining that the available storage space is larger than that of the third CSP server. At least two third CSP servers supporting the maximum file size serve as the second CSP server for uploading file blocks, and the original file is divided according to the determined maximum file size supported by the at least two second CSP servers. into at least two file blocks, the size of the file block being smaller than the maximum file size supported by the second CSP server;

Specifically, the CSP server uploads the at least two file blocks to the at least two second CSP servers respectively.

27. The server according to claim 26, characterized in that, the server further includes a storage unit; The storage unit is used to store the information of the original file. The information of the original file includes: the identification of the original file, the number of file blocks into which the original file is divided, and the file block identification of each file block, and stores the information of each file block. The identification of the second CSP server of the file block, and the order of each file block in the original file.

28. The server of claim 27, wherein the identifier of the second CSP server sends the identifier of the UCD server, the file block identifier, and the order of the file blocks in the original file to the second CSP server.

29. The server according to any one of claims 23 to 28, characterized in that the server further includes a deletion unit;

The receiving unit is further configured to receive a file deletion request sent by the first CSP server, where the file deletion request carries the identification of the file to be deleted;

The determination and acquisition unit is further configured to obtain, according to the identification of the file to be deleted, the information of the file that needs to be deleted corresponding to the identification of the file that needs to be deleted and stored in the storage unit, the information of the file that needs to be deleted. Contains the identification of the fourth CSP server that stores the file blocks of the file that needs to be deleted, the identification of the file blocks stored by each fourth CSP server, and sends the information of the file that needs to be deleted to the sending unit;

The sending unit is further configured to receive the information of the file that needs to be deleted sent by the determination acquisition unit, and send a file block deletion request to the fourth CSP server according to the identification of the fourth CSP server. The file block deletion The request carries the identifier of the file log stored by the fourth CSP server, and the file deletion request is used to instruct the fourth CSP server to delete the file block and file block corresponding to the file block identifier stored by the fourth CSP server. Information;

The receiving unit is further configured to receive the file block deletion response sent by the fourth CSP server;

The deletion unit is used to delete the information of the file to be deleted stored in the storage unit; the sending unit is further used to return a file deletion response to the first CSP server, the file The file deletion response is used to instruct the first CSP server to send the file deletion response to the first terminal.

30. A service provider CSP server, characterized by including: a transceiver, a memory and a processor;

The transceiver is configured to receive a message sent by the first terminal after the first terminal logs into the CSP server through the user's registration information on the CSP server and the CSP server provides services to the first terminal. File download request, the file download request carries the identifier of the original file;

The memory is used to store various programs and applications, and execute the functions of each program and application under the call of the processor;

The processor is used to call various programs and applications stored in the memory, and determine that the original file corresponding to the identification of the original file is divided into blocks, and obtain the first unified cloud disk UCD server that uploaded the file blocks of the original file. Identification: Send a file acquisition request to the first UCD server according to the identification of the first UCD server, and the file acquisition request carries the identification of the original file; The file acquisition request is used to instruct the first UCD server Obtain the stored original file information according to the identification of the original file, and obtain the second CSP server indicated by the identification of the second CSP server according to the identification of the second CSP server that stores the file block in the original file information. Obtain file blocks and synthesize the obtained file blocks into original files;

The transceiver is further used to obtain the file acquisition response returned by the first UCD server, and send the file acquisition response to the first terminal to instruct the first terminal to obtain the file acquisition response through the file acquisition response. Original file.

31. A unified cloud disk UCD server, characterized by including: a transceiver, a memory and a processor;

The transceiver is configured to receive a file acquisition request sent by the first cloud service provider CSP server, where the file acquisition request carries the identification of the original file;

The memory is used for various programs and applications, and executes the functions of each program and application under the call of the processor; The processor is configured to call various programs and applications stored in the memory, and obtain the stored original file information corresponding to the identification of the original file according to the identification of the original file. The information of the original file includes storage of file blocks. The identifier of the second CSP server, the file block identifier stored by the second CSP server and the order of the file blocks in the original file, according to the identifier of the second CSP server, from the first file indicated by the identifier of the second CSP server. The second CSP server obtains the file blocks corresponding to the file block identifiers stored by the second CSP server; according to the order of the file blocks obtained from the second CSP server in the original file, each of the file blocks obtained from the second CSP server is The file blocks obtained by the server are merged into the original file;

The transceiver is further configured to provide the original file to the first terminal.