CN110191146A - A kind of long-range retrieval method of file based on browser and system - Google Patents
A kind of long-range retrieval method of file based on browser and system Download PDFInfo
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- CN110191146A CN110191146A CN201910215955.1A CN201910215955A CN110191146A CN 110191146 A CN110191146 A CN 110191146A CN 201910215955 A CN201910215955 A CN 201910215955A CN 110191146 A CN110191146 A CN 110191146A
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- computer
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/12—Applying verification of the received information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/06—Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Computer Hardware Design (AREA)
- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Information Transfer Between Computers (AREA)
- Computer And Data Communications (AREA)
Abstract
The present invention provides a kind of long-range retrieval method of the file based on browser and system, which comprises has access to computer by browser and sends Document Retrieval request to server；The request of Document Retrieval described in the server analysis establishes the network connection between object-computer, and Document Retrieval request is sent to the object-computer；The object-computer extracts the specified local file of the Document Retrieval request, is sent to the server；The server receives the local file, is then forwarded to and described has access to computer.The present invention is based on browsers freely can remotely have access to file, especially during censorship, can be related to the violation the file information of computer by all censorships of computer verification, substantially increases the efficiency for verifying work.
Description
Technical field
The present invention relates to technical field of network security, more particularly, to a kind of long-range retrieval method of the file based on browser
And system.
Background technique
In the checking process of censorship, it will usually be checked in related computer and not meet security requirements
Violation file.When finding violation file during the inspection process, the auditor for being responsible for censorship work is usually required to separated
Rule file is verified again.Since censorship relates generally to multiple stage computers, by directly being verified on violation computer
The mode of file operates very complicated, and the mode of on-site verification is not inconsistent with the objective of censorship yet.
Therefore, straight by browser the invention discloses a kind of long-range retrieval method of file based on browser and system
It connects and has access to the mode of file the auditor for being responsible for censorship work can be made to examine by all secrecy of a computer verification
It looks into and is related to the violation the file information of computer, improve verification working efficiency.
Summary of the invention
The purpose of the present invention is that file is remotely had access to from object-computer based on browser, by browser to service
Request is had access in device transmission, and server establishes the network connection between object-computer, is remotely had access to from object-computer reception
File.
The present invention provides a kind of long-range retrieval methods of the file based on browser, specifically comprise the following steps:
It has access to computer and Document Retrieval request is sent to server by browser；
The request of Document Retrieval described in the server analysis, establishes the network connection between object-computer, and by the text
Part has access to request and is sent to the object-computer；
The object-computer extracts the specified local file of the Document Retrieval request, is sent to the server；
The server receives the local file, is then forwarded to and described has access to computer.
Further, the Document Retrieval request includes the local road of object-computer IP address and the file had access to
Diameter, title and MD5 value.
Further, Document Retrieval request further includes that can specify simultaneously on object-computer multiple have access to file
Local path, title and MD5 value.
Further, the step " object-computer extracts the specified local file of Document Retrieval request,
It is sent to the server " before, it further include being verified to the server, Document Retrieval request, specifically:
If the request of the server, Document Retrieval is by verification, back-checking successful information gives the server, at this point,
The server will be transmitted and received to the object-computer and be requested；Conversely,
If the server is unverified or the server by verification but Document Retrieval request does not pass through school
It tests, then the object-computer returns to agreement error code to the server.
It further, include verification server ip address, MAC Address and key to the verification of the server；To institute
State Document Retrieval request verification include the local path of verification object Computer IP address and the file had access to, title and
MD5 value.
Further, in step " server receives the local file, be then forwarded to described have access to computer "
In, it further include the format for obtaining and judging the local file, specifically:
(1) it if the picture format that the native file format is supported by the browser, is sent directly to described have access to meter
Calculation machine；
(2) it if the picture format that the native file format is not supported by the browser, but can be converted by format
The picture format that the browser is supported after then the server formats the file, is retransmited to described
Have access to computer；
(3) it if the picture format that the native file format is neither supported by the browser, can not be converted by format
At the picture format that the browser is supported, then the file is compressed on the server, is retransmited to described
Have access to computer.
Further, in step " server receives the local file, be then forwarded to described have access to computer "
Afterwards, described to have access to computer native file format passes through browser and carries out page presentation or downloading based on the received.
Further, the system comprises have access to computer, server and object-computer, wherein
Computer is had access to, is requested for sending Document Retrieval to server, and shows and downloads and receive had access to local text
Part, the local file are located at object-computer；
Server is located at the local file of object-computer, Yi Jifa with the network connection of object-computer, acquisition for establishing
Send the local file to having access to computer；
Object-computer, for responding the network connection of the server, provide the specified local file of Document Retrieval request to
The server.
Further, whether the object-computer, which also verifies the server and have, has access to permission and the verification text
Part has access to whether request matches, specifically:
If the server, Document Retrieval request by verification, the object-computer by back-checking successful information extremely
The server, at this point, the server will transmit and receive the request of the local file to the object-computer；Conversely,
If the server is unverified or the server by verification but Document Retrieval request does not pass through school
It tests, then the object-computer returns to agreement error code to the server.
Further, the server is also used to handle acquired local file, judges the format of the local file
The picture format whether supported by the browser, specifically:
(1) it if the picture format that the native file format is supported by the browser, is sent directly to described have access to meter
Calculation machine；
(2) it if the picture format that the native file format is not supported by the browser, but can be converted by format
The picture format that the browser is supported after then the server formats the file, is retransmited to described
Have access to computer；
(3) it if the picture format that the native file format is neither supported by the browser, can not be converted by format
At the picture format that the browser is supported, then the file is compressed on the server, is retransmited to described
Have access to computer.
The present invention provides provided technical solution, has the utility model has the advantages that by having access to computer to server, server
To the data communication of object-computer (computer locating for file), realizes in a computer, freely had access to by browser
File data in other multiple stage computers；In addition, can also judge whether to need to convert according to the format of had access to file, from
And page presentation or downloading can be carried out by browser.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, attached drawing used in being described below to embodiment
It is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, general for this field
For logical technical staff, under the premise of not paying creativeness, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the long-range retrieval method flow chart of a kind of file based on browser that the embodiment of the present invention one provides；
Fig. 2 is a kind of long-range retrieval method flow chart of file based on browser provided by Embodiment 2 of the present invention；
Fig. 3 is the method flow diagram that the server process that the embodiment of the present invention three provides has access to file；
Fig. 4 is that a kind of file based on browser that the embodiment of the present invention four provides remotely has access to system structure diagram.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it should be pointed out that described embodiment is only a part of the embodiments of the present invention, rather than whole realities
Apply example.Based on the embodiments of the present invention, those skilled in the art institute obtained without making creative work
There are other embodiments, shall fall within the protection scope of the present invention.
Embodiment one
Fig. 1 is the long-range retrieval method flow chart of a kind of file based on browser that the embodiment of the present invention one provides, such as Fig. 1 institute
Show, the described method comprises the following steps:
Step S101 has access to computer by browser and sends Document Retrieval request to server.
Step S102, the request of Document Retrieval described in the server analysis, the network established between object-computer connect
It connects, and Document Retrieval request is sent to the object-computer.
Step S103, the object-computer extract the specified local file of the Document Retrieval request, are sent to described
Server.
Step S104, the server receive the local file, are then forwarded to and described have access to computer.
In above-mentioned steps, the sheet including object-computer IP address and the file had access in the Document Retrieval request
Ground path, title and MD5 value.It, can be by the browser for having access to computer to the local of acquisition after step S104
File provides page presentation or downloading.
The Document Retrieval request further includes the multiple local roads for having access to file that can be specified simultaneously on object-computer
Diameter, title and MD5 value.
A kind of according to embodiments of the present invention one long-range retrieval method of file based on browser provided, just may be implemented in one
In platform computer, the file data in other multiple stage computers is freely had access to by browser.
Embodiment two
Before above-mentioned steps S103, the object-computer can also be asked Document Retrieval transmitted by the server and server
It asks and is verified, including whether server has Document Retrieval permission, local file whether there is, whether local file has been modified
Deng, only when request verification pass through after, server could pull file from object-computer, and specific method is as shown in Figure 2.
Fig. 2 is a kind of long-range retrieval method flow chart of file based on browser provided by Embodiment 2 of the present invention, described
Method is further comprising the steps of:
Step S101 has access to computer by browser and sends Document Retrieval request to server.
Step S102, the request of Document Retrieval described in the server analysis, the network established between object-computer connect
It connects, and Document Retrieval request is sent to the object-computer.
The network connection is that network data transmission is carried out based on the channel socket, and the server is sent out according to agreement format
It send the information for the file had access to object-computer, makes requests verification for object-computer.
Whether step S201 verifies the server and has and have access to permission.The object-computer is to the server
Verification includes the verification IP address of server, MAC Address, and by matched between object-computer and server key into
Row verifying, the embodiment of the present invention are not construed as limiting used verification mode；Have access to object-computer conduct locating for file
The server-side in the channel socket, socket service listening port and can receive in addition to the server, and multiple computers are corresponding
The socket connection request that other servers are initiated, but only the executable local file of part server (request end) has access to operation,
As in embodiments of the present invention, it is limited to that only local file can be pulled by the channel socket by the server, has access to permission
It can be configured in the object-computer.If the server, which has, has access to permission, i.e., the described server is the target
The server that computer is limited or specified, then enter step S203, if otherwise the server does not have and has access to permission, into
Enter step S202.
Step S202, the object-computer return to agreement error code to the server.
Step S203, verifies whether the Document Retrieval request passes through.The Document Retrieval request includes file local road
Diameter, title and MD5 value；The object-computer described first whether there is the file for verifying specified path, when file existence
After verification passes through, object-computer will verify the MD5 value of file, to judge whether file is modified；In the process of censorship
Period after finding violation file in a computer, will calculate a MD5 value for violation file, and be the first MD5 value, work as text
When part is had access to, it is the 2nd MD5 value, when first that object-computer, which will calculate second MD5 value for newest local file,
When MD5 value is equal to the 2nd MD5 value, that is, represents violation file and do not adjusted from after file checking, that is had access at this time is as original
Sample.
It should be noted that may also include the time of file in the Document Retrieval request, so that verification rule is arranged, also
Whether consistent filemodetime can further be verified；When passing through according to the rule verification of step 203, S204 is entered step,
Conversely, then entering step S202.
Step S204, the object-computer is by back-checking successful information to the server.
Step S205, the server will transmit and receive the request of the local file to the object-computer.
Step S103, the object-computer extract the specified local file of the Document Retrieval request, are sent to described
Server.
Step S104, the server receive the local file, are then forwarded to and described have access to computer.
It is cached after the server receives local file, after caching, the channel socket can be closed, broken
Open the network connection between the object-computer.
A kind of according to embodiments of the present invention two long-range retrieval methods of file based on browser provided, are calculated by target
Verification of the machine to server, can avoid the interference of other non-designated servers；File request information is further had access to by verification
In file, can further determine that file that object-computer is stored is exactly the required file having access to.
Embodiment three
In above-mentioned steps S104, server can also be handled local file after caching local file, and specific method is such as
Shown in Fig. 3, Fig. 3 is the method flow diagram that the server process that the embodiment of the present invention three provides has access to file, the method includes
Following steps:
Step S301, server obtain the received native file format of institute.
Step S302 judges whether the file format is that browser is picture format supported.For example, mainstream browses at present
The picture format that device can directly display is that gif., jpeg., jpg., bmp., png. illustrate if file is above-mentioned picture format
The native file format is the picture format that browser is supported, is not required to format, and can be directly entered step S303；
Conversely, entering step S304 if the file format is not supported by the browser.
The file is sent to and has access to computer by step S303, and the page of the local file is carried out by browser
It shows.
Step S304 judges whether that the file format picture format that the browser is supported can be converted into.Example
Such as, in computer documents, the file of division format can directly show file content, such as word document, in addition, there is also must
The file that effective content must can be shown by other tool software, such as zip compressed package files, therefore in the process having access to
In, it needs to carry out format judgement, for the file that effective content can directly be shown, i.e., when file can be exchanged into picture format then
S305 is entered step, and for the file of extended formatting, then enter step S306.
It is picture format supported to be converted into the browser by step S305 for the file.When file can be exchanged into browsing
When the picture format that device is supported, for example, being converted to png. format, file content can be subjected to cutting according to default page-size.
Step S306 is sent on the server by compressing file and has access to computer, carries out the local by browser
The downloading of file.
The method that according to embodiments of the present invention three server process provided have access to file, can be according to acquired local file
Format, judge whether need format or judge that can the file format into browser and be supported
Picture format, according to server send native file format, thus judgement be by browser carry out page presentation or
Downloading is provided by the page.
Example IV
Fig. 4 is that a kind of file based on browser that the embodiment of the present invention four provides remotely has access to system structure diagram.Such as Fig. 4
Shown, the system comprises have access to computer, server and object-computer, wherein
Computer 41 is had access to, is requested for sending Document Retrieval to server, and receives, show and download had access to local
File, the local file are located at object-computer；
Server 42 is located at the local file of object-computer with the network connection of object-computer, acquisition for establishing, and
The local file is sent to having access to computer；
Object-computer 43 provides Document Retrieval request specified local file for responding the network connection of the server
To the server.
Network connection between the server 42 and object-computer 43 is to carry out network data based on the channel socket
Transmission, the server 42 call client, foundation and maintenance for the channel socket as socket；The target calculates
Machine 43 is used as socket server-side, carries out socket port monitoring.
Whether the object-computer 43, which also verifies the server and have, has access to permission and the verification Document Retrieval
Whether request matches, specifically:
If the server, Document Retrieval request by verification, the object-computer by back-checking successful information extremely
The server, at this point, the server will transmit and receive the request of the local file to the object-computer；Conversely,
If the server is unverified or the server by verification but Document Retrieval request does not pass through school
It tests, then the object-computer returns to agreement error code to the server.
The server 42 is also used to handle acquired local file, judges whether the format of the local file is institute
The picture format that browser is supported is stated, specifically:
(1) it if the picture format that the native file format is supported by the browser, is sent directly to described have access to meter
Calculation machine；
(2) it if the picture format that the native file format is not supported by the browser, but can be converted by format
The picture format that the browser is supported after then the server formats the file, is retransmited to described
Have access to computer；
(3) it if the picture format that the native file format is neither supported by the browser, can not be converted by format
At the picture format that the browser is supported, then the file is compressed on the server, is retransmited to described
Have access to computer.
It should be noted that in the present invention have access to computer and object-computer is not to carry out to the title of computer
It limits, it is only for difference description.
Above-described embodiment provided by the invention is applied to network, specifically, can be with by the browser of a computer
Have access to request to server transmission, server receives have access to request after, according to the file information to be had access to, from target calculating
File data is pulled in machine, and content displaying is carried out according to file format in a browser, or the machine is downloaded to by browser,
To reach in a computer, without installing additional software, other remote computers local can be transferred by browser
The effect of file.
Claims (10)
1. a kind of long-range retrieval method of file based on browser, which is characterized in that the described method includes:
It has access to computer and Document Retrieval request is sent to server by browser；
The request of Document Retrieval described in the server analysis, establishes the network connection between object-computer, and by the text
Part has access to request and is sent to the object-computer；
The object-computer extracts the specified local file of the Document Retrieval request, is sent to the server；
The server receives the local file, is then forwarded to and described has access to computer.
2. the method as described in claim 1, which is characterized in that Document Retrieval request include object-computer IP address and
Local path, title and the MD5 value for the file had access to.
3. the method as described in claim 1, which is characterized in that the Document Retrieval request further includes that can specify target simultaneously
Multiple local paths for having access to file, title and MD5 value on computer.
4. the method as described in claim 1, which is characterized in that in the step, " object-computer extracts the file
Have access to the specified local file of request, be sent to the server " before, further include the server, Document Retrieval are requested into
Row verification, specifically:
If the request of the server, Document Retrieval is by verification, back-checking successful information gives the server, at this point,
The server will be transmitted and received to the object-computer and be requested；Conversely,
If the server is unverified or the server by verification but Document Retrieval request does not pass through school
It tests, then the object-computer returns to agreement error code to the server.
5. method as claimed in claim 4, which is characterized in that the verification to the server includes with verifying server ip
Location, MAC Address and key；Verification to Document Retrieval request includes verification object Computer IP address and to be had access to
Local path, title and the MD5 value of file.
6. the method as described in claim 1, which is characterized in that in step, " server receives the local file, then
Computer is had access to described in being transmitted to " in, it further include the format for obtaining and judging the local file, specifically:
(1) it if the picture format that the native file format is supported by the browser, is sent directly to described have access to meter
Calculation machine；
(2) it if the picture format that the native file format is not supported by the browser, but can be converted by format
The picture format that the browser is supported after then the server formats the file, is retransmited to described
Have access to computer；
(3) it if the picture format that the native file format is neither supported by the browser, can not be converted by format
At the picture format that the browser is supported, then the file is compressed on the server, is retransmited to described
Have access to computer.
7. the method as described in claim 1, which is characterized in that in step, " server receives the local file, then
It is transmitted to and described has access to computer " after, it is described to have access to computer native file format by browser carries out page based on the received
Face is shown or downloading.
8. a kind of file based on browser remotely has access to system, which is characterized in that the system comprises have access to computer, service
Device and object-computer, wherein
Computer is had access to, is requested for sending Document Retrieval to server, and receives, show and download had access to local text
Part, the local file are located at object-computer；
Server is located at the local file of object-computer, Yi Jifa with the network connection of object-computer, acquisition for establishing
Send the local file to having access to computer；
Object-computer, for responding the network connection of the server, provide the specified local file of Document Retrieval request to
The server.
9. system as claimed in claim 8, which is characterized in that the object-computer also verifies whether the server has
It has access to permission and whether the verification Document Retrieval request matches, specifically:
If the server, Document Retrieval request by verification, the object-computer by back-checking successful information extremely
The server, at this point, the server will transmit and receive the request of the local file to the object-computer；Conversely,
If the server is unverified or the server by verification but Document Retrieval request does not pass through school
It tests, then the object-computer returns to agreement error code to the server.
10. system as claimed in claim 8, it is further characterized in that, the server is also used to handle acquired local text
Part judges the picture format whether format of the local file is supported by the browser, specifically:
(1) it if the picture format that the native file format is supported by the browser, is sent directly to described have access to meter
Calculation machine；
(2) it if the picture format that the native file format is not supported by the browser, but can be converted by format
The picture format that the browser is supported after then the server formats the file, is retransmited to described
Have access to computer；
(3) it if the picture format that the native file format is neither supported by the browser, can not be converted by format
At the picture format that the browser is supported, then the file is compressed on the server, is retransmited to described
Have access to computer.
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| CN201910215955.1A CN110191146A (en) | 2019-03-21 | 2019-03-21 | A kind of long-range retrieval method of file based on browser and system |
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Application publication date: 20190830 |