CN108156199A - The system and method for user-defined file transport protocol is realized based on plug-in type module - Google Patents
The system and method for user-defined file transport protocol is realized based on plug-in type module Download PDFInfo
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- CN108156199A CN108156199A CN201611105157.6A CN201611105157A CN108156199A CN 108156199 A CN108156199 A CN 108156199A CN 201611105157 A CN201611105157 A CN 201611105157A CN 108156199 A CN108156199 A CN 108156199A
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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]
-
- 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
- H04L67/2866—Architectures; Arrangements
- H04L67/2876—Pairs of inter-processing entities at each side of the network, e.g. split proxies
-
- 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
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
- H04L67/568—Storing data temporarily at an intermediate stage, e.g. caching
- H04L67/5682—Policies or rules for updating, deleting or replacing the stored data
Abstract
The invention discloses a kind of system and methods that user-defined file transport protocol is realized based on plug-in type module, the system is including service centre etc., main thread module, thread pool module, Queue module is all connected with service centre, main thread module is connected with thread pool module, task worker thread module, file scan threading models, file transmits download thread module, thread pool module is all connected with Queue module, file scan threading models, file transmits download thread module, collection modules, card module is all connected with task worker thread module, file transmission download thread module is connected with long-range AGENT modules.The present invention realizes user-defined file transport protocol, improves the use scope of the software.
Description
Technical field
The present invention relates to a kind of File Transfer Protocol, and user-defined file is realized based on plug-in type module more particularly to one kind
The system and method for transport protocol.
Background technology
In many large enterprises, have it is several be distributed in various levels of management and control computer, wherein being deployed in this
Software systems (hereinafter referred to as " Agent ") in a little terminals are responsible for performing various types of computer operation tasks, such as perform foot
This order, scanning file size, transmission file etc..
File is transmitted between computer at present, the international standard application layer file biography based on TCP/IP protocol suite is widely used
Defeated agreement (File Transfer Protocol).The masters of file are transmitted by the client-side program of conventional File Transfer Protocol, are connected
The server of distance host File Transfer Protocol is connected to, file transmission or the download life that client is sent out are performed by the latter
It enables, and implementing result is returned into client.
However, during the use that this routine File Transfer Protocol is transmitted in file, there are many shortcomings, such as data-transmission mode
With communication work mode it is unreasonable, with fire wall work it is uncoordinated, cryptosecurity strategy is not perfect, does not support breakpoint transmission etc.
Deng these potential technological deficiencies have seriously affected its extensive use.
Invention content
The technical problems to be solved by the invention are to provide a kind of based on plug-in type module realization user-defined file transmission association
The system and method for view can realize user-defined file transport protocol, improve the use scope of the software, ensure reliably
File is effectively improved the safety of file transmission while transmission.
The present invention is to solve above-mentioned technical problem by following technical proposals：One kind is realized certainly based on plug-in type module
The system for defining File Transfer Protocol, which is characterized in that it wraps service centre, main thread module, thread pool module, queue mould
Block, task worker thread module, collection modules, file scan threading models, file transmission download thread module, long-range AGENT
Module, card module, main thread module, thread pool module, Queue module are all connected with service centre, main thread module and thread
Pond module is connected, task worker thread module, file scan threading models, file transmission download thread module, thread pool module
All be connected with Queue module, file scan threading models, file transmission download thread module, collection modules, card module all with
Task worker thread module is connected, and file transmission download thread module is connected with long-range AGENT modules.
Preferably, the main thread module is used to be responsible for listening port, handles the connection of the concurrent communication outside receiving；Thread
Pond module is formed including multiple threading models, for being responsible for assigning idle thread processing external connection, and manipulating object is written
Internal queues structure；Queue module is formed including multiple effort modules；Collection modules include multiple execution object module compositions；Appoint
It works and makees threading models, for the manipulating object being responsible in Timing Processing queue, after carrying out homework type separation, start plug-in unit mould
Block handles operation, and monitors implementing result；Card module realizes respective data transmit-receive, different conventions is parsed, without
Influence other kinds of operation processing；Service centre is responsible for uniting to all computer operation tasks involved in application system
One centralized dispatching, assignment and management；File scan threading models are responsible for regular check associated documents magnitude function；Under file transmission
Threading models are carried to be responsible for performing file transmission download function.
The present invention also provides a kind of methods for realizing user-defined file transport protocol based on plug-in type module to include following step
Suddenly：
Step 1, when file download starts, the client of destination end Agent finds first by local temporary structure file
A file block number do not downloaded opens local transient target file, navigates to the corresponding target location of blocks of files number；
After the completion of each blocks of files is downloaded, local transient target file is written, while update local temporary structure in step 2
The download state of corresponding blocks in file；
Step 3 after the completion of all pieces of downloads, calculates the md5 values of local transient target file, and tie temporarily with local
The md5 values recorded in structure file, the source file md5 values obtained again carry out tripartite's comparison, to verify that the content of file transmission is complete
Whole property；
Local transient target Bulk Rename Utility is real goal filename after being proved to be successful, while deletes local by step 4
Temporary structure file, backtracking implementing result.
Preferably, the step 1 includes the following steps：
Step 11, the source file for judging to download whether there is, and 21 are entered step if being not present；
Step 12 if local temporary structure file is not present, judges that file destination whether there is, and is if judging in the presence of if
It is no to exit at once, 21 are entered step if exiting, otherwise performs following sub-step；Judge whether to need coverage goal literary
If desired part covers, delete target file then enters step 17；Judge whether to need renaming file destination, if desired give birth to
The file destination name of Cheng Xin then enters step 17；
Step 13 if local transient target file is not present, enters step 17；
Step 14 if local transient target file exists and local temporary structure file is abnormal, enters step
16；
Step 15 reads local md5 values and judges to judge whether to match with source md5 values, entered step if matching
19, otherwise enter step 16；
Step 10 six deletes local transient target and structured file；
Step 10 seven creates local transient target and local temporary structure file；
Step 10 eight reads source file structural information and local temporary structure file is written；
Step 10 nine reads breakpoint location；
Step 2 ten downloads blocks of files since breakpoint location；
Step 2 11 is this time downloaded operation and is terminated, and return is exited.
Preferably, the breakpoint transmission is previous file transmission to be caused not complete for network or system exception, in weight next time
It can continue to transmit from the position of previous download when starting this document transmission.
Preferably, the local transient target file is identical with the title for transmitting file, but is subject to area with .dst extension name
Point, transmit the file content that destination end receives in downloading process for save file.
The positive effect of the present invention is：The present invention can by plug-in type module use remote procedure call into
Row data mode realizes a kind of new file download transport protocol under client-server paradigm, is ensureing reliably
File is effectively improved the safety of file transmission while transmission.The present invention is preferably utilized with reference to multi-thread design pattern
Resource for computer system so that the overall operation efficiency of process obtains larger raising, while enhance the flexibility of system.This
Invention greatly supports the extension of homework type by card module.The present invention realizes user-defined file transport protocol, carries
The high use scope of the software.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Specific embodiment
Present pre-ferred embodiments are provided below in conjunction with the accompanying drawings, with the technical solution that the present invention will be described in detail.
To include in service as shown in Figure 1, the present invention is based on the systems that plug-in type module realizes user-defined file transport protocol
The heart, main thread module, thread pool module, Queue module, task worker thread module, collection modules, file scan threading models,
File transmission download thread module, long-range AGENT (agency) module, card module, main thread module, thread pool module, queue
Module is all connected with service centre, and main thread module is connected with thread pool module, task worker thread module, file scan thread
Module, file transmission download thread module, thread pool module are all connected with Queue module, and file scan threading models, file pass
Defeated download thread module, collection modules, card module are all connected with task worker thread module, file transmission download thread module
It is connected with long-range AGENT modules.
Main thread module is used to be responsible for listening port, handles the connection of the concurrent communication outside receiving；Thread pool module includes
For being responsible for assigning idle thread processing external connection, and internal queues knot is written in manipulating object by multiple threading models compositions
Structure；Queue module is formed including multiple effort modules；Collection modules include multiple execution object module compositions；Task worker thread
Module for the manipulating object being responsible in Timing Processing queue, after carrying out homework type separation, starts card module processing and makees
Industry, and monitor implementing result；Card module realizes respective data transmit-receive, different conventions is parsed, without influencing other
The operation processing of type；Service centre is responsible for that all computer operation tasks involved in application system are carried out to adjust in Unified Set
Degree is assigned and is managed；File scan threading models are responsible for regular check associated documents magnitude function；File transmits download thread mould
Block is responsible for performing file transmission download function.
The long-range AGENT modules include long-range AGENT clients and long-range AGENT server ends, wherein：
Long-range AGENT clients, for being responsible for, by protocol requirement tissue data, actively initiating the company of calling to remote Agent
It connects, and receives response；
Long-range AGENT server ends, for being responsible for receiving the calling connection of long-range AGENT initiations, and by protocol requirement
Reason receives data, and sends response.
The breaker point continuous transmission method that user-defined file transport protocol of the present invention is realized includes following principle：
(1) status information that the file transmission downloading process point of interruption resumes is recorded in local temporary structure file.This article
Part is identical with the title for transmitting file, but is distinguish with .tmp extension name, is made of three parts.16 byte records of first part
The source file md5 values obtained from source Agent, the integer of 4 byte of second part are used to record according to source file length computation
Total block count is downloaded, the N byte of Part III indefinite length is equal to block count, and each byte is used to record under each blocks of files
Load state, 0 represents not download, and 1 represents to have downloaded.
(2) file content that destination end receives in file transmission downloading process is stored in local transient target file, should
File is identical with the title for transmitting file, but is distinguish with .dst extension name.
(3) start for the first time download file when, destination end to source AGENT obtain download source file md5 values, be recorded in for
It is locally-downloaded in the temporary structure file of file destination establishment, first being obtained when re-downloading this document next time from source AGENT should
File md5 values, and the original md5 values with being recorded in local temporary structure file are compared, if unanimously, supporting paper content does not have
It changes, execution resumes, if inconsistent, supporting paper content has changed, then no longer transmits.
The method for realizing user-defined file transport protocol the present invention is based on plug-in type module includes the following steps：
Step 1, when file download starts, the client of destination end AGENT finds first by local temporary structure file
A file block number do not downloaded opens local transient target file, navigates to the corresponding target location of blocks of files number；
After the completion of each blocks of files is downloaded, local transient target file is written, while update local temporary structure in step 2
The download state of corresponding blocks in file；
Step 3 after the completion of all pieces of downloads, calculates the md5 values of local transient target file, and tie temporarily with local
The md5 values recorded in structure file, the source file md5 values obtained again carry out tripartite's comparison, to verify that the content of file transmission is complete
Whole property；
Local transient target Bulk Rename Utility is real goal filename after being proved to be successful, while deletes local by step 4
Temporary structure file, backtracking implementing result.
Step 1 includes the following steps：
Step 11, the source file for judging to download whether there is, and 21 are entered step if being not present；
Step 12 if local temporary structure file is not present, judges that file destination whether there is, and is if judging in the presence of if
It is no to exit at once, 21 are entered step if exiting, otherwise performs following sub-step；Judge whether to need coverage goal literary
If desired part covers, delete target file then enters step 17；Judge whether to need renaming file destination, if desired give birth to
The file destination name of Cheng Xin then enters step 17；
Step 13 if local transient target file is not present, enters step 17；
Step 14 if local transient target file exists and local temporary structure file is abnormal, enters step
16；
Step 15 reads local md5 values and judges to judge whether to match with source md5 values, entered step if matching
19, otherwise enter step 16；
Step 10 six deletes local transient target and structured file；
Step 10 seven creates local transient target and local temporary structure file；
Step 10 eight reads source file structural information and local temporary structure file is written；
Step 10 nine reads breakpoint location；
Step 2 ten downloads blocks of files since breakpoint location；
Step 2 11 is this time downloaded operation and is terminated, and return is exited.
The step 2 includes the following steps：
Step 2 11 downloads blocks of files since breakpoint location；
Step 2 12, judges whether this document block downloads success, and following sub-step is performed if unsuccessful：Judge this time
Whether reach largest block and re-download number, 25 are entered step if reaching, otherwise enters step 21；
Step 2 13 downloads the local transient target file of content write-in；
Step 2 14, record published article part block state information, and after move breakpoint location；
Step 2 15 is this time downloaded operation and is terminated, and return is exited.
Step 3 includes the following steps：
Step 4 11, the download of All Files block terminate, and calculate the md5 values of local transient target file；
Step 4 12, judges and whether the md5 values of local temporary structure file match, and is recorded under file if mismatching
Failure is carried, and enters step 4 14；
Step 4 13, judges and whether the md5 values of long-range source file match, and file download is recorded if mismatching and is lost
It loses, and enters step 4 14；
Step 4 14 this time downloads operation and terminates to exit.
The local transient target file is identical with the title for transmitting file, but with a kind of .dst (file suffixes used
Name) extension name is distinguish, transmit the file content that destination end receives in downloading process for save file.
The present invention is remote using RPC (Remote Procedure Call Protocol, remote procedure call protocol)
The journey invocation of procedure, it is that a kind of transmitted using TCP (Transmission Control Protocol, transmission control protocol) is assisted
The advanced application layer communication protocol of view initiates to ask by client-server paradigm to remote computer program.
In the user-defined file transport protocol, client is exactly the destination end of file transmission, it is where source file
Server end initiates call request, and the fileinfo of required download is sent to server-side process, and obtain by response message
The content of file is downloaded, basic function is as follows：One, starting client connection request calls；Two, obtain the encryption data of return
File content, and decrypt；Three, the breakpoint transmission function for carrying out file destination download is realized；Four, local directory retains the mesh downloaded
Mark file.
In the user-defined file transport protocol, server end is exactly source where the source file of file transmission, it is received
The recalls information of the file download of client, and source file data are returned, basic function is as follows：Ten, receive connection request tune
With；11, server end source file data are encrypted；12, the returned data in a manner of response.
The breakpoint transmission is previous file transmission to be caused not complete for network or system exception, and this article is restarted in next time
Part can continue to transmit when transmitting from the position of previous download, when performing file transmission operation, destination end Agent softwares
The single source file size for preparing to download is divided into several blocks of files by the job execution client of system by 1 Mbytes of size,
Each blocks of files is downloaded by the job execution thread one by one in a serial fashion, if transmission failure, with reference to for verifying that file content is complete
The file md5 values of whole property, can after the blocks of files downloaded continue to download unfinished portion, under restarting
It carries, file transmission download time can be saved in this way, improve the execution efficiency of transmission operation.
Described to judge whether breakpoint resumes, when starting to download file for the first time, destination end obtains to source AGENT and downloads source document
The md5 values of part are recorded in be locally-downloaded in the temporary structure file of file destination establishment, re-download next time first during this document
This document md5 values are obtained from source AGENT, and the md5 values with being recorded in local temporary structure file are compared, if unanimously,
Supporting paper content does not change, and execution resumes, if inconsistent, supporting paper content has changed, then no longer transmits.
The key pair for the rivest, shamir, adelman (RSA) that the user-defined file transport protocol of the present invention is adopted international standards is handed over
The key of symmetric encipherment algorithm (AES) is changed, and file data blocks are encrypted with decryption using the latter.
Particular embodiments described above, the technical issues of to the solution of the present invention, technical solution and advantageous effect carry out
It is further described, it should be understood that the above is only a specific embodiment of the present invention, is not limited to
The present invention, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should be included in this
Within the protection domain of invention.
Claims (7)
1. a kind of system that user-defined file transport protocol is realized based on plug-in type module, which is characterized in that its packet service centre,
Main thread module, thread pool module, Queue module, task worker thread module, collection modules, file scan threading models, text
Part transmission download thread module, long-range AGENT modules, card module, main thread module, thread pool module, Queue module all with
Service centre is connected, and main thread module is connected with thread pool module, task worker thread module, file scan threading models, text
Part transmission download thread module, thread pool module are all connected with Queue module, file scan threading models, file transmission downloading wire
Journey module, collection modules, card module are all connected with task worker thread module, file transmission download thread module with it is long-range
AGENT modules are connected.
2. the system of user-defined file transport protocol is realized based on plug-in type module as described in claim 1, which is characterized in that
The main thread module is used to be responsible for listening port, handles the connection of the concurrent communication outside receiving；Thread pool module includes multiple
Threading models form, and for being responsible for assigning idle thread processing external connection, and manipulating object are written internal queues structure；Team
Row module is formed including multiple effort modules；Collection modules include multiple execution object module compositions；Task worker thread module,
For the manipulating object being responsible in Timing Processing queue, after carrying out homework type separation, start card module processing operation, and supervise
Control implementing result；Card module realizes respective data transmit-receive, different conventions is parsed, without influencing other kinds of work
Industry processing；Service centre is responsible for carrying out all computer operation tasks involved in application system unified centralized dispatching, assign
And management；File scan threading models are responsible for regular check associated documents magnitude function；File transmission download thread module is responsible for
Perform file transmission download function.
3. the system of user-defined file transport protocol is realized based on plug-in type module as described in claim 1, which is characterized in that
The long-range AGENT modules include long-range AGENT clients and long-range AGENT server ends, wherein：
Long-range AGENT clients, for being responsible for, by protocol requirement tissue data, actively initiating to call connection to remote Agent, and
Receive response；
Long-range AGENT server ends for being responsible for receiving the calling connection of remote Agent initiation, and are handled by protocol requirement and connect
Data are received, and send response.
A kind of 4. method that user-defined file transport protocol is realized based on plug-in type module, which is characterized in that it includes following step
Suddenly：
Step 1, when file download starts, the client of destination end Agent finds first not by local temporary structure file
The file block number of download opens local transient target file, navigates to the corresponding target location of blocks of files number；
After the completion of each blocks of files is downloaded, local transient target file is written, while update local temporary structure file in step 2
The download state of middle corresponding blocks；
Step 3 after the completion of all pieces are downloaded, calculates the md5 values of local transient target file, and literary with local temporary structure
The md5 values recorded in part, the source file md5 values obtained again carry out tripartite's comparison, to verify the content integrity of file transmission；
Local transient target Bulk Rename Utility is real goal filename, while delete local interim after being proved to be successful by step 4
Structured file, backtracking implementing result.
5. the method for user-defined file transport protocol is realized based on plug-in type module as claimed in claim 4, which is characterized in that
The step 1 includes the following steps：
Step 11, the source file for judging to download whether there is, and 21 are entered step if being not present；
Step 12 if local temporary structure file is not present, judges that file destination whether there is, if judging whether to stand in the presence of if
Quarter exits, and 21 are entered step if exiting, and otherwise performs following sub-step；Judge whether to need coverage goal file, if
Needing covering, then delete target file then enters step 17；Judge whether to need renaming file destination, if desired generation is new
File destination name then enter step 17；
Step 13 if local transient target file is not present, enters step 17；
Step 14 if local transient target file exists and local temporary structure file is abnormal, enters step 16；
Step 15 reads local md5 values and judges to judge whether to match with source md5 values, 19 are entered step if matching,
Otherwise 16 are entered step；
Step 10 six deletes local transient target and structured file；
Step 10 seven creates local transient target and local temporary structure file；
Step 10 eight reads source file structural information and local temporary structure file is written；
Step 10 nine reads breakpoint location；
Step 2 ten downloads blocks of files since breakpoint location；
Step 2 11 is this time downloaded operation and is terminated, and return is exited.
6. the method for user-defined file transport protocol is realized based on plug-in type module as claimed in claim 5, which is characterized in that
The breakpoint transmission is previous file transmission to be caused not complete for network or system exception, when this document transmission is restarted in next time
It can continue to transmit from the position of previous download.
7. the method for user-defined file transport protocol is realized based on plug-in type module as claimed in claim 4, which is characterized in that
The local transient target file is identical with the title for transmitting file, but is distinguish with .dst extension name, for save file
Transmit the file content that destination end receives in downloading process.
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Cited By (1)
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| CN113766006A (en) * | 2021-07-29 | 2021-12-07 | 北京思特奇信息技术股份有限公司 | Real-time file transmission method and system based on FTP (file transfer protocol) |
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Application publication date: 20180612 |