CN114035753A - Security reinforcement system and method based on document printing in cloud desktop environment - Google Patents
Security reinforcement system and method based on document printing in cloud desktop environment Download PDFInfo
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- CN114035753A CN114035753A CN202111085615.5A CN202111085615A CN114035753A CN 114035753 A CN114035753 A CN 114035753A CN 202111085615 A CN202111085615 A CN 202111085615A CN 114035753 A CN114035753 A CN 114035753A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/12—Digital output to print unit, e.g. line printer, chain printer
- G06F3/1201—Dedicated interfaces to print systems
- G06F3/1202—Dedicated interfaces to print systems specifically adapted to achieve a particular effect
- G06F3/1222—Increasing security of the print job
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/12—Digital output to print unit, e.g. line printer, chain printer
- G06F3/1201—Dedicated interfaces to print systems
- G06F3/1223—Dedicated interfaces to print systems specifically adapted to use a particular technique
- G06F3/1237—Print job management
- G06F3/1253—Configuration of print job parameters, e.g. using UI at the client
- G06F3/1258—Configuration of print job parameters, e.g. using UI at the client by updating job settings at the printer
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/12—Digital output to print unit, e.g. line printer, chain printer
- G06F3/1201—Dedicated interfaces to print systems
- G06F3/1278—Dedicated interfaces to print systems specifically adapted to adopt a particular infrastructure
- G06F3/1285—Remote printer device, e.g. being remote from client or server
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Abstract
The invention provides a security strengthening system and a security strengthening method based on document printing in a cloud desktop environment, wherein the system comprises a cloud printer, a cloud printing client, a cloud printing server and a pool printing controller; the pool printing controller is in long connection with the cloud printing server and is used for receiving printing jobs and executing printing tasks; the cloud printing server is used for configuring user policy information; the cloud printer is used for firstly acquiring a pool printer list from a cloud printing client for selection of a user when the user selects the cloud printer, and intercepting an application file data stream and sending the application file data stream to the cloud printing client when printing is started; the cloud printing client is used for updating user policy information, acquiring a pool printer list, receiving a file data stream sent by a cloud printer, performing document conversion and user policy information processing, generating a printing job and uploading the printing job to the cloud printing server. The cloud printing system provided by the invention can effectively improve the cloud printing efficiency and the safety in the cloud printing process.
Description
Technical Field
The invention relates to the technical field of cloud printing, in particular to a security reinforcing system and method based on document printing in a cloud desktop environment.
Background
Cloud printing refers to integrating printing service provider resources based on the internet, constructing a shared printing platform, and providing a printing service with standardized quality anytime anywhere for a user. Users with printing authority can log in a (software) platform through mobile phones, cameras, computers and other equipment, and can print information such as characters and pictures by using various printing equipment after simple setting.
Compared with the traditional printer, the cloud printing is not limited by distance and time, so that remote printing in different places can be realized, resource integration is realized, and convenience is provided for life or work of people. At present, cloud printing is used in office environments and is gradually popularized, and how to realize efficient and convenient printing and ensure the safety of a printing process becomes a research hotspot of technicians in the field.
Disclosure of Invention
The invention aims to provide a security strengthening system and method based on document printing in a cloud desktop environment, and improve cloud printing efficiency and security.
In a first aspect, the invention provides a security reinforcement system based on document printing in a cloud desktop environment, which comprises a cloud printer, a cloud printing client, a cloud printing server and a pool printing controller, wherein the cloud printer is connected with the pool printing controller through a network, the cloud printing server is respectively connected with the pool printing controller and the cloud printing client, and the cloud printing client is connected with the cloud printer;
the pool printing controller is in long connection with the cloud printing server and is used for receiving printing jobs and executing printing tasks;
the cloud printing server is used for configuring user policy information for each user and simultaneously keeps long connection with the pool printing controller;
the cloud printer is used for firstly acquiring a pool printer list from a cloud printing client for selection of a user when the user selects the cloud printer, and intercepting an application file data stream and sending the application file data stream to the cloud printing client when printing is started;
the cloud printing client is used for requesting to update user policy information and acquiring a pool printer list after the user authentication login is successful, receiving a file data stream sent by the cloud printer when the user initiates printing, and performing document conversion and user policy information processing when the receiving is completed, generating a printing job and uploading the printing job to the cloud printing server.
Further, the cloud printing client and the cloud printer are respectively installed in a cloud desktop, and the pool printing controller and the cloud printing server are respectively installed on a Windows server.
Further, the cloud printer is a virtual printer customized based on a microsoft postscript framework.
In a second aspect, the present invention provides a security strengthening method based on document printing in a cloud desktop environment, and a system as described above is provided, where the method includes:
step 1, logging in a pool printing controller, registering a cloud printer, and after the registration is completed, establishing long connection between the pool controller and a cloud printing server;
step 2, logging in a cloud print server, and configuring user policy information of each user;
step 3, logging in a cloud printing client, synchronously updating user strategy information from a cloud printing server, and acquiring a pool printer list;
step 4, selecting a file to be printed, and selecting a cloud printer in the pool printer list to execute printing operation;
step 5, the cloud printer acquires a file data stream and sends the file data stream to the cloud printing client;
step 6, converting the file data stream into PDF by the cloud printing client, dynamically adding watermark information according to the user strategy information to generate a printing job, and uploading the printing job to a cloud printing server;
step 7, the cloud printing server issues the print jobs to the pool print controller;
and 8, the pool printing controller analyzes the printing job and executes the printing task according to the printing task information.
Further, the user policy information includes a name of the filled watermark, a watermark angle, a watermark depth, a watermark color, and a watermark font size, and whether to display a user name, a department, a job number, and a printing time.
Further, the step 4 specifically includes: selecting a file to be printed, selecting a cloud printer (CloudColorPrinter) in the pool printer list, and further selecting a specific printer for printing when the print driver pops up the pool printer sublist.
Further, the file data stream is a Postscript data stream, and the cloud print client in step 6 converts the Postscript data stream into a PDF file by using GhostScript.
Further, the "dynamically adding watermark information to generate a print job according to the user policy information" specifically includes: and adding a watermark to the PDF file according to the user strategy information by using Podofo to generate a printing job.
Further, the step 8 specifically includes: the pool printing controller analyzes the printing operation to obtain a printer name, printing parameters and a printing file with watermark information, the printing file with the printing information is sent to a corresponding printer according to the printer name in the printing operation, and the corresponding printer executes the printing operation according to the printing parameters.
One or more technical schemes provided by the invention at least have the following technical effects or advantages: the cloud printer is managed through the pool printing controller, the printed file is processed through the cloud printing client, cloud printing efficiency and safety are improved, meanwhile, in the user printing process, user strategy information is dynamically added through the cloud printing server, the user strategy information is synchronously updated to the cloud printing client, and the effects of cloud printing safety circulation and copy prevention traceability are achieved.
Drawings
The invention will be further described with reference to the following examples with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a security reinforcement system for document printing in a cloud desktop environment according to the present invention.
Fig. 2 is a flowchart of a security reinforcing method based on document printing in a cloud desktop environment according to the present invention.
FIG. 3 is a schematic diagram of a printing process according to an embodiment of the present invention.
Fig. 4 is a schematic diagram of a user policy information configuration interface according to an embodiment of the present invention.
Detailed Description
As shown in fig. 1, the present invention provides a security strengthening system for document printing in a cloud desktop environment, the system includes a cloud printer, a cloud printing client, a cloud printing server and a pool printing controller, the cloud printer is connected to the pool printing controller via a network, the cloud printing server is connected to the pool printing controller and the cloud printing client, respectively, and the cloud printing client is connected to the cloud printer;
the pool printing controller is in long connection with the cloud printing server and is used for receiving printing jobs and executing printing tasks;
the cloud printing server is used for configuring user policy information for each user and simultaneously keeps long connection with the pool printing controller;
the cloud printer is used for firstly acquiring a pool printer list from a cloud printing client for selection of a user when the user selects the cloud printer, and intercepting an application file data stream and sending the application file data stream to the cloud printing client when printing is started;
the cloud printing client is used for requesting to update user policy information and acquiring a pool printer list after the user authentication login is successful, receiving a file data stream sent by the cloud printer when the user initiates printing, and performing document conversion and user policy information processing when the receiving is completed, generating a printing job and uploading the printing job to the cloud printing server.
Preferably, the cloud printing client and the cloud printer are respectively installed in a cloud desktop, and the pool printing controller and the cloud printing server are respectively installed on a Windows server.
Preferably, the cloud printer is a virtual printer customized based on a Microsoft Postscript framework.
As shown in fig. 2 to 4, the present invention provides a security strengthening method based on document printing in a cloud desktop environment, and provides a system as described above, where the method includes:
step 1, an administrator logs in a pool printing controller, registers a cloud printer, and after the registration is completed, the pool controller and a cloud printing server establish long connection;
step 2, an administrator logs in the cloud printing server and configures user policy information of each user;
step 3, a user logs in a cloud printing client, user strategy information is synchronously updated from a cloud printing server, and a pool printer list is obtained;
step 4, selecting a file to be printed (such as word, statepad and the like), and selecting a cloud printer in the pool printer list to execute a printing operation;
step 5, the cloud printer acquires a file data stream and sends the file data stream to the cloud printing client;
step 6, converting the file data stream into PDF by the cloud printing client, dynamically adding watermark information according to the user strategy information to generate a printing job, and uploading the printing job to a cloud printing server;
step 7, the cloud printing server issues the print jobs to the pool print controller;
and 8, the pool printing controller analyzes the printing job and executes the printing task according to the printing task information.
Preferably, the user policy information includes a name of the filled watermark, a watermark angle, a watermark depth, a watermark color, a watermark font size, whether the user name is displayed, whether a department is displayed, whether a job number is displayed, and whether a printing time is displayed.
Preferably, the step 4 specifically includes: selecting a file to be printed, selecting a cloud printer (CloudColorPrinter) in the pool printer list, and further selecting a specific printer (such as PrinterA) to print when the print driver ejects the pool printer sublist.
Preferably, the file data stream is a Postscript data stream, and the cloud print client in step 6 converts the Postscript data stream into a PDF file by using a GhostScript.
Preferably, the "dynamically adding watermark information to generate a print job according to user policy information" specifically includes: a print job is generated by watermarking a PDF file according to user policy information using Podofo (a PDF open source library).
Preferably, the step 8 specifically includes: the pool printing controller analyzes the printing operation to obtain a printer name, printing parameters and a printing file with watermark information, the printing file with the printing information is sent to a corresponding printer according to the printer name in the printing operation, and the corresponding printer executes printing operation according to the printing parameters (such as single-sided and double-sided printing, color printing and the like).
According to the cloud printing method and the cloud printing system, the cloud printer is managed through the pool printing controller, the user policy information is dynamically added through the cloud printing server and is synchronously updated to the cloud printing client, the printed file is processed through the cloud printing client, the corresponding printed file is generated according to the user policy information, the cloud printing efficiency is improved, the cloud printed file is safely circulated, and important confidential documents are prevented from being copied and forwarded at will.
Although specific embodiments of the invention have been described above, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the invention, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the invention, which is to be limited only by the appended claims.
Claims (9)
1. The utility model provides a security reinforcement system based on document printing under cloud desktop environment which characterized in that: the system comprises a cloud printer, a cloud printing client, a cloud printing server and a pool printing controller, wherein the cloud printer is connected with the pool printing controller through a network;
the pool printing controller is in long connection with the cloud printing server and is used for receiving printing jobs and executing printing tasks;
the cloud printing server is used for configuring user policy information for each user and simultaneously keeps long connection with the pool printing controller;
the cloud printer is used for firstly acquiring a pool printer list from a cloud printing client for selection of a user when the user selects the cloud printer, and intercepting an application file data stream and sending the application file data stream to the cloud printing client when printing is started;
the cloud printing client is used for requesting to update user policy information and acquiring a pool printer list after the user authentication login is successful, receiving a file data stream sent by the cloud printer when the user initiates printing, and performing document conversion and user policy information processing when the receiving is completed, generating a printing job and uploading the printing job to the cloud printing server.
2. The security strengthening system based on document printing in the cloud desktop environment according to claim 1, wherein: the cloud printing client and the cloud printer are respectively installed in the cloud desktop, and the pool printing controller and the cloud printing server are respectively installed on the Windows server.
3. The security strengthening system based on document printing in the cloud desktop environment according to claim 1, wherein: the cloud printer is a virtual printer customized based on a Microsoft Postscript framework.
4. A security strengthening method based on document printing in a cloud desktop environment is characterized by comprising the following steps: it is intended to provide a system as claimed in any one of claims 1 to 3, said method comprising:
step 1, logging in a pool printing controller, registering a cloud printer, and after the registration is completed, establishing long connection between the pool controller and a cloud printing server;
step 2, logging in a cloud print server, and configuring user policy information of each user;
step 3, logging in a cloud printing client, synchronously updating user strategy information from a cloud printing server, and acquiring a pool printer list;
step 4, selecting a file to be printed, and selecting a cloud printer in the pool printer list to execute printing operation;
step 5, the cloud printer acquires a file data stream and sends the file data stream to the cloud printing client;
step 6, converting the file data stream into PDF by the cloud printing client, dynamically adding watermark information according to the user strategy information to generate a printing job, and uploading the printing job to a cloud printing server;
step 7, the cloud printing server issues the print jobs to the pool print controller;
and 8, the pool printing controller analyzes the printing job and executes the printing task according to the printing task information.
5. The security strengthening method based on document printing in the cloud desktop environment according to claim 4, wherein: the step 4 specifically includes: and selecting a file to be printed, selecting a cloud printer in the pool printer list, and further selecting a specific printer for printing when the print driver pops up the pool printer sublist.
6. The security strengthening method based on document printing in the cloud desktop environment according to claim 4, wherein: the user strategy information comprises the name of the filled watermark, the angle of the watermark, the depth of the watermark, the color of the watermark and the font number of the watermark, and whether the name of the user is displayed, whether a department is displayed, whether a job number is displayed and whether printing time is displayed.
7. The security strengthening method based on document printing in the cloud desktop environment according to claim 4, wherein: the file data stream is a Postscript data stream, and the cloud printing client in the step 6 converts the Postscript data stream into a PDF file by using a GhostScript.
8. The security strengthening method based on document printing in the cloud desktop environment according to claim 4, wherein: the "dynamically adding watermark information to generate a print job according to user policy information" specifically includes: and adding a watermark to the PDF file according to the user strategy information by using Podofo to generate a printing job.
9. The security strengthening method based on document printing in the cloud desktop environment according to claim 4, wherein: the step 8 specifically comprises the following steps: the pool printing controller analyzes the printing operation to obtain a printer name, printing parameters and a printing file with watermark information, the printing file with the printing information is sent to a corresponding printer according to the printer name in the printing operation, and the corresponding printer executes the printing operation according to the printing parameters.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111085615.5A CN114035753A (en) | 2021-09-16 | 2021-09-16 | Security reinforcement system and method based on document printing in cloud desktop environment |
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| CN202111085615.5A CN114035753A (en) | 2021-09-16 | 2021-09-16 | Security reinforcement system and method based on document printing in cloud desktop environment |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102541482A (en) * | 2010-12-27 | 2012-07-04 | 北大方正集团有限公司 | Method and system for document printing control and document tracing |
| US20150355873A1 (en) * | 2014-06-05 | 2015-12-10 | Samsung Electronics Co., Ltd. | Cloud print method using automatic response system and cloud print system for performing the same |
| CN107273067A (en) * | 2011-10-04 | 2017-10-20 | 富士施乐株式会社 | Message handler |
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- 2021-09-16 CN CN202111085615.5A patent/CN114035753A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102541482A (en) * | 2010-12-27 | 2012-07-04 | 北大方正集团有限公司 | Method and system for document printing control and document tracing |
| CN107273067A (en) * | 2011-10-04 | 2017-10-20 | 富士施乐株式会社 | Message handler |
| US20150355873A1 (en) * | 2014-06-05 | 2015-12-10 | Samsung Electronics Co., Ltd. | Cloud print method using automatic response system and cloud print system for performing the same |
Non-Patent Citations (1)
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| 林潇、吴怡: "智能防御的私有云打印系统", 《计算机系统应用》 * |
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