CN109033475B - File storage method, device, equipment and storage medium - Google Patents
File storage method, device, equipment and storage medium Download PDFInfo
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- CN109033475B CN109033475B CN201811053642.2A CN201811053642A CN109033475B CN 109033475 B CN109033475 B CN 109033475B CN 201811053642 A CN201811053642 A CN 201811053642A CN 109033475 B CN109033475 B CN 109033475B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
- G06F21/6218—Protecting access to data via a platform, e.g. using keys or access control rules to a system of files or objects, e.g. local or distributed file system or database
- G06F21/6272—Protecting access to data via a platform, e.g. using keys or access control rules to a system of files or objects, e.g. local or distributed file system or database by registering files or documents with a third party
Abstract
The embodiment of the invention provides a file storage method, a file storage device, file storage equipment and a file storage medium, and belongs to the field of block chains. The method comprises the steps of obtaining the address of a file to be stored in a transfer server; synchronizing the file to be stored from the transfer server to a blockchain file server node according to the address; preprocessing the file to be stored to generate signature data; performing uplink storage on the signature data, and completing consensus among data nodes; and performing consensus and synchronization processing on the files to be stored at all file nodes, and returning success information for representing successful chaining of the files to be stored. Therefore, the real estate service data can be linked up, the file is prevented from being lost outside, the file storage safety can be effectively improved, and the technical problem in the prior art is solved.
Description
Technical Field
The invention relates to the field of block chains, in particular to a file storage method, a device, equipment and a storage medium.
Background
Because real estate data relates to a large amount of picture and document data (contracts, business transaction form scans, test and drawing papers, business transaction attachment scans), and these data, if recognized by a blockchain, can cause the blockchain to have the following problems:
a. a single block file is too large, so that the efficiency is influenced;
b. the expansion speed of block link point data is too high;
however, in the conventional method, a large file/picture is not stored in a block chain and is stored in a service layer, and a hash value of the file is stored and uploaded for storage, but the file is lost outside and cannot be protected sufficiently; and the verification of the document is lacked during business handling, only the deposit certificate is made, and the picture is proved to be not falsified and the modification, recording and tracking of the certificate document which is normally modified and replaced are lacked.
Disclosure of Invention
The file storage method, device, equipment and storage medium provided by the embodiment of the invention can solve the technical problem that the file loss in the prior art cannot strengthen the protection of the file.
In order to achieve the above purpose, the embodiment of the present invention adopts the following technical solutions:
in a first aspect, a file storage method provided in an embodiment of the present invention includes: acquiring the address of a file to be stored in a transfer server; synchronizing the file to be stored from the transfer server to a blockchain file server node according to the address; preprocessing the file to be stored to generate signature data; performing uplink storage on the signature data, and completing consensus among data nodes; and performing consensus and synchronization processing on the files to be stored at all file nodes, and returning success information for representing successful chaining of the files to be stored.
With reference to the first aspect, an embodiment of the present invention provides a first possible implementation manner of the first aspect, where the obtaining an address of a file to be stored in a transit server includes: and acquiring the address of the file to be stored in a transfer server by calling a preset interface function, wherein at least one file to be stored is stored in the transfer server.
With reference to the first aspect, an embodiment of the present invention provides a second possible implementation manner of the first aspect, where the preprocessing the file to be stored to generate signature data includes: carrying out format conversion and compression processing on the file to be stored to generate a file characteristic value and a file access link; and generating signature data according to the file characteristic value and the file access link.
With reference to the first aspect, an embodiment of the present invention provides a third possible implementation manner of the first aspect, where after performing consensus and synchronization processing on the to-be-stored file at all file nodes, and returning success information used for representing that the uplink of the to-be-stored file is successful, the method further includes: acquiring contract data of service transaction according to the success information; analyzing the contract data to obtain the file access link; determining a file corresponding to the file access link; and storing the decompressed file to the transfer server, and generating an external access link so as to be externally disclosed together with the service handling data through the external access link.
With reference to the third possible implementation manner of the first aspect, an embodiment of the present invention provides a fourth possible implementation manner of the first aspect, and before determining a file corresponding to the file access link, the method further includes: determining the signature data, the authority information and the file characteristic value according to the contract data; acquiring the signature data, the authority information and verification information corresponding to the file characteristic value; and if the verification information meets the preset requirement, determining the file corresponding to the file access link.
In a second aspect, an embodiment of the present invention provides a file storage apparatus, including: the acquisition unit is used for acquiring the address of the file to be stored in the transfer server; the synchronization unit is used for synchronizing the file to be stored from the transfer server to the block chain file server node according to the address; the first data processing unit is used for preprocessing the file to be stored and generating signature data; the second data processing unit is used for performing uplink storage on the signature data and completing consensus among data nodes; and the third data processing unit is used for performing consensus and synchronization processing on the file to be stored at all file nodes and returning success information for representing the successful cochain of the file to be stored.
With reference to the first aspect, an embodiment of the present invention provides a fourth possible implementation manner of the first aspect, where the obtaining unit is further configured to: and acquiring the address of the file to be stored in a transfer server by calling a preset interface function, wherein at least one file to be stored is stored in the transfer server.
With reference to the third possible implementation manner of the first aspect, an embodiment of the present invention provides a fourth possible implementation manner of the first aspect, where the first data processing unit is further configured to: carrying out format conversion and compression processing on the file to be stored to generate a file characteristic value and a file access link; and generating signature data according to the file characteristic value and the file access link.
In a third aspect, a terminal device provided in an embodiment of the present invention includes: a memory, a processor and a computer program stored in the memory and executable on the processor, the processor implementing the steps of the file storage method according to any one of the first aspect when executing the computer program.
In a fourth aspect, an embodiment of the present invention provides a storage medium, where the storage medium has instructions stored thereon, and when the instructions are executed on a computer, the instructions cause the computer to execute the file storage method according to any one of the first aspect.
Compared with the prior art, the embodiment of the invention has the following beneficial effects:
according to the file storage method, the file storage device, the file storage equipment and the file storage medium, provided by the embodiment of the invention, the address of the file to be stored in the transfer server is obtained; synchronizing the file to be stored from the transfer server to a blockchain file server node according to the address; preprocessing the file to be stored to generate signature data; performing uplink storage on the signature data, and completing consensus among data nodes; and performing consensus and synchronization processing on the files to be stored at all file nodes, and returning success information for representing successful chaining of the files to be stored. Therefore, the real estate service data can be linked up, the file is prevented from being lost outside, the file storage safety can be effectively improved, and the technical problem in the prior art is solved.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a flowchart of a file storage method according to a first embodiment of the present invention;
FIG. 2 is a schematic diagram of a network topology in the file storage method shown in FIG. 1;
FIG. 3 is a functional block diagram of a file storage device according to a second embodiment of the present invention;
fig. 4 is a schematic diagram of a terminal device according to a third embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a flowchart illustrating a file storage method according to a first embodiment of the present invention. The specific process shown in FIG. 1 will be described in detail below.
Step S101, the address of the file to be stored in the transfer server is obtained.
In this embodiment, the transfer server stores at least one file to be stored therein.
Alternatively, the file to be stored may be real estate data. Real estate data includes, among other things, large amounts of picture and file data (e.g., contracts, business transaction form scans, test and drawing papers, business transaction attachment scans).
As shown in fig. 2, in actual use, real estate data (i.e., files to be stored) are generally uploaded to the file transfer server through the front-end server through the intranet.
As an embodiment, step S101 includes: and acquiring the address of the file to be stored in a transfer server by calling a preset interface function, wherein at least one file to be stored is stored in the transfer server.
Optionally, the preset interface function is a blockchain interface (e.g. transfer registration), which includes an address of the desired file (i.e. the file to be stored) in the transit server.
And step S102, synchronizing the file to be stored from the transfer server to a block chain file server node according to the address.
The blockchain file server node is a blockchain server.
In this embodiment, the blockchain server synchronizes the files to be stored in the transit server according to the address corresponding to each file to be stored, so as to synchronize the files to be stored in the blockchain server.
The blockchain server comprises blockchain data nodes and blockchain file nodes, wherein the blockchain data nodes are used for performing functions similar to those of a traditional blockchain and performing consensus, storage and verification on blockchain data. The blockchain file node is used for storing blockchain pictures and files, calculating characteristic values of the files and providing access services of the files, such as services that users access the files stored in a blockchain server through an external network.
Step S103, preprocessing the file to be stored to generate signature data.
As an embodiment, step S103 includes: carrying out format conversion and compression processing on the file to be stored to generate a file characteristic value and a file access link; and generating signature data according to the file characteristic value and the file access link.
Optionally, the file to be stored is converted into a preset format and then compressed, so as to obtain a file characteristic value and a file access link.
Wherein the file characteristic value is a fingerprint of the file, and is usually an MD5 (Message-DigestAlgorithm 5, fifth edition of Message digest algorithm) value of the file.
The file access link is used for internal access to the file to be stored, that is, a user can access the file to be stored in the intranet through the file access link. The intranet is usually called a local area network, and the extranet is usually called a WAN wide area network or MAN metropolitan area network connected to the internet.
In actual use, the signature may be generally performed by MD5 to generate signature data.
Of course, in practical applications, other algorithms may also be used to sign the file feature value and the file access link to generate signature data, for example, the other algorithms may be, but are not limited to, a CRC (Cyclic redundancy check) Algorithm, a SHA (Secure Hash Algorithm), or a RIPEMD (robust priorities Evaluation Message Digest) Algorithm.
Step S104, the signature data is subjected to uplink storage, and consensus is completed among data nodes.
In practical use, the blockchain consensus is mainly determined by: initiating a transaction; broadcasting via the P2P protocol; each node confirms the transaction; after the transaction is confirmed, starting to write into the block chain; synchronizing the results of the writing; and returning a transaction result.
Step S105, the files to be stored are subjected to consensus and synchronization processing on all the file nodes, and success information used for representing the successful cochain of the files to be stored is returned.
In this embodiment, the file is synchronized to all file servers (file nodes) by writing the file characteristic value into the block chain, so as to realize the common identification and synchronization of the file.
Generally, the common identification of file nodes is to calculate a file characteristic value by writing files; broadcasting via the P2P protocol; each node confirms the information of the file; after the confirmation is finished, writing the characteristic value; synchronizing the written results and synchronizing the files; and returning a file writing result (namely returning success information for representing the successful chaining of the file to be stored).
In this embodiment, the success information includes a certification address, and the certification address is used in the data publicizing or displaying process, which is specifically referred to as follows.
In a possible embodiment, after step S105, the file storage method further includes:
acquiring contract data of service transaction according to the success information; analyzing the contract data to obtain the file access link; determining a file corresponding to the file access link; and storing the decompressed file to the transfer server, and generating an external access link so as to be externally disclosed together with the service handling data through the external access link.
Optionally, before determining the file corresponding to the file access link, the method further includes: determining the signature data, the authority information and the file characteristic value according to the contract data; acquiring the signature data, the authority information and verification information corresponding to the file characteristic value; and if the verification information meets the preset requirement, determining the file corresponding to the file access link.
The contract data refers to that a single real estate transaction (transfer registration and the like) is stored in the form of an intelligent contract, specific fields of the contract are greatly different according to different transacted services, and the interior of the contract at least contains the following types of information, and the transfer registration is taken as an example: transfer registered contract data includes: transfer registration partner information, transfer registration process approval information, transfer registration tax information, transfer registration loan information, transfer registration web tag information, and other information related to transfer registration.
In the embodiment, by checking the signature information, the authority information and the file characteristic value information, the file is effectively checked during business transaction, so that the storage safety is effectively improved, the file is effectively prevented from being tampered, the normally modified and replaced certificate file can be modified, recorded and tracked, and the file storage safety is further improved.
The file storage method provided by the embodiment of the invention comprises the steps of obtaining the address of a file to be stored in a transfer server; synchronizing the file to be stored from the transfer server to a blockchain file server node according to the address; preprocessing the file to be stored to generate signature data; performing uplink storage on the signature data, and completing consensus among data nodes; and performing consensus and synchronization processing on the files to be stored at all file nodes, and returning success information for representing successful chaining of the files to be stored. Therefore, the real estate service data can be linked up, the file is prevented from being lost outside, the file storage safety can be effectively improved, and the technical problem in the prior art is solved.
Second embodiment
Fig. 3 shows a file storage apparatus that employs the file storage method shown in the first embodiment in a one-to-one correspondence, corresponding to the file storage method in the first embodiment. As shown in fig. 3, the file storage apparatus 400 includes an acquisition unit 410, a synchronization unit 420, a first data processing unit 430, a second data processing unit 440, and a third data processing unit 450. The implementation functions of the obtaining unit 410, the synchronizing unit 420, the first data processing unit 430, the second data processing unit 440, and the third data processing unit 450 correspond to the corresponding steps in the first embodiment one to one, and for avoiding redundancy, detailed descriptions are not needed in this embodiment.
The obtaining unit 410 is configured to obtain an address of the file to be stored in the transit server.
Optionally, the obtaining unit 410 is further configured to: and acquiring the address of the file to be stored in a transfer server by calling a preset interface function, wherein at least one file to be stored is stored in the transfer server.
A synchronizing unit 420, configured to synchronize the file to be stored from the transit server to a blockchain file server node according to the address.
The first data processing unit 430 is configured to pre-process the file to be stored, and generate signature data.
Optionally, the first data processing unit 430 is further configured to: carrying out format conversion and compression processing on the file to be stored to generate a file characteristic value and a file access link; and generating signature data according to the file characteristic value and the file access link.
The second data processing unit 440 is configured to perform uplink storage on the signature data and perform consensus among data nodes.
The third data processing unit 450 is configured to perform consensus and synchronization processing on the file to be stored at all file nodes, and return success information for representing that the uplink of the file to be stored is successful.
Optionally, after the third data processing unit 450, the file storage apparatus 400 further includes: a display unit;
the display unit is used for: acquiring contract data of service transaction according to the success information; analyzing the contract data to obtain the file access link; determining a file corresponding to the file access link; and storing the decompressed file to the transfer server, and generating an external access link so as to be externally disclosed together with the service handling data through the external access link.
Optionally, before determining the file corresponding to the file access link, the method further includes: determining the signature data, the authority information and the file characteristic value according to the contract data; acquiring the signature data, the authority information and verification information corresponding to the file characteristic value; and if the verification information meets the preset requirement, determining the file corresponding to the file access link.
Third embodiment
As shown in fig. 4, is a schematic diagram of a terminal device 300. The terminal device 300 includes a memory 302, a processor 304, and a computer program 303 stored in the memory 302 and capable of running on the processor 304, where the computer program 303 is executed by the processor 304 to implement the file storage method in the first embodiment, and details are not repeated here to avoid repetition. Alternatively, the computer program 303 is executed by the processor 304 to implement the functions of each model/unit in the file storage device according to the second embodiment, and details are not described herein for avoiding redundancy.
Illustratively, the computer program 303 may be partitioned into one or more modules/units, which are stored in the memory 302 and executed by the processor 304 to implement the present invention. One or more of the modules/units may be a series of computer program instruction segments capable of performing specific functions, which are used to describe the execution of the computer program 303 in the terminal device 300. For example, the computer program 303 may be divided into the obtaining unit 410, the synchronizing unit 420, the first data processing unit 430, the second data processing unit 440, and the third data processing unit 450 in the second embodiment, and specific functions of each unit are as described in the first embodiment or the second embodiment, which are not described herein again.
The terminal device 300 may be a desktop computer, a notebook, a palm computer, a cloud server, or other computing devices.
The Memory 302 may be, but is not limited to, a Random Access Memory (RAM), a Read Only Memory (ROM), a Programmable Read-Only Memory (PROM), an Erasable Read-Only Memory (EPROM), an electrically Erasable Read-Only Memory (EEPROM), and the like. The memory 302 is used for storing a program, and the processor 304 executes the program after receiving an execution instruction, and the method defined by the flow disclosed in any of the foregoing embodiments of the present invention may be applied to the processor 304, or implemented by the processor 304.
The processor 304 may be an integrated circuit chip having signal processing capabilities. The processor 304 may be a general-purpose processor, including a Central Processing Unit (CPU), a Network Processor (NP), and the like; but also Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field-Programmable Gate arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
It is understood that the structure shown in fig. 4 is only a schematic structure of the terminal device 300, and the terminal device 300 may further include more or less components than those shown in fig. 4. The components shown in fig. 4 may be implemented in hardware, software, or a combination thereof.
Fourth embodiment
An embodiment of the present invention further provides a storage medium, where the storage medium stores instructions, and when the instructions run on a computer, when the computer program is executed by a processor, the file storage method in the first embodiment is implemented, and details are not repeated here in order to avoid repetition. Alternatively, the computer program is executed by a processor to implement the functions of each model/unit in the file storage device according to the second embodiment, and details are not repeated here to avoid redundancy.
From the above description of the embodiments, it is clear to those skilled in the art that the present invention can be implemented by hardware, or by software plus a necessary general hardware platform, and based on such understanding, the technical solution of the present invention can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a usb disk, a removable hard disk, etc.), and includes several instructions to make a computer device (which can be a personal computer, a server, or a network device, etc.) execute the method of the various implementation scenarios of the present invention.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
Claims (9)
1. A file storage method, comprising:
acquiring the address of a file to be stored in a transfer server;
synchronizing the file to be stored from the transfer server to a blockchain file server node according to the address;
preprocessing the file to be stored to generate signature data;
performing uplink storage on the signature data, and completing consensus among data nodes;
performing common identification and synchronous processing on the files to be stored at all file nodes, and returning success information for representing successful chaining of the files to be stored;
after the files to be stored are subjected to consensus and synchronization processing at all file nodes and successful information used for representing that the uplink of the files to be stored is successful is returned, the method further comprises the following steps:
acquiring contract data of service transaction according to the success information;
analyzing the contract data to obtain a file access link;
determining the signature data, the authority information and the file characteristic value according to the contract data;
acquiring the signature data, the authority information and verification information corresponding to the file characteristic value;
and if the verification information meets the preset requirement, determining the file corresponding to the file access link.
2. The method according to claim 1, wherein the obtaining the address of the file to be stored in the transit server comprises:
and acquiring the address of the file to be stored in a transfer server by calling a preset interface function, wherein at least one file to be stored is stored in the transfer server.
3. The method according to claim 1, wherein the preprocessing the file to be stored to generate signature data comprises:
carrying out format conversion and compression processing on the file to be stored to generate the file characteristic value and the file access link;
and generating signature data according to the file characteristic value and the file access link.
4. The method according to claim 1, further comprising, after determining the file corresponding to the file access link:
and storing the decompressed file to the transfer server, and generating an external access link so as to be externally disclosed together with the service handling data through the external access link.
5. A file storage device, comprising:
the acquisition unit is used for acquiring the address of the file to be stored in the transfer server;
the synchronization unit is used for synchronizing the file to be stored from the transfer server to the block chain file server node according to the address;
the first data processing unit is used for preprocessing the file to be stored and generating signature data;
the second data processing unit is used for performing uplink storage on the signature data and completing consensus among data nodes;
the third data processing unit is used for carrying out consensus and synchronization processing on the files to be stored at all file nodes and returning success information for representing that the files to be stored are successfully linked;
the display unit is used for acquiring contract data of service handling according to the success information;
analyzing the contract data to obtain a file access link;
determining the signature data, the authority information and the file characteristic value according to the contract data;
acquiring the signature data, the authority information and verification information corresponding to the file characteristic value;
and if the verification information meets the preset requirement, determining the file corresponding to the file access link.
6. The apparatus of claim 5, wherein the obtaining unit is further configured to:
and acquiring the address of the file to be stored in a transfer server by calling a preset interface function, wherein at least one file to be stored is stored in the transfer server.
7. The apparatus of claim 5, wherein the first data processing unit is further configured to:
carrying out format conversion and compression processing on the file to be stored to generate the file characteristic value and the file access link;
and generating signature data according to the file characteristic value and the file access link.
8. A terminal device comprising a processor and a memory, the memory storing computer readable instructions which, when executed by the processor, perform the method of any one of claims 1 to 4.
9. A storage medium having stored thereon instructions which, when run on a computer, cause the computer to execute the file storage method according to any one of claims 1 to 4.
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