CN111240610A - Printing process management and control method, system, terminal and storage medium - Google Patents
Printing process management and control method, system, terminal and storage medium Download PDFInfo
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- CN111240610A CN111240610A CN202010017874.3A CN202010017874A CN111240610A CN 111240610 A CN111240610 A CN 111240610A CN 202010017874 A CN202010017874 A CN 202010017874A CN 111240610 A CN111240610 A CN 111240610A
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- printer driver
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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
- G06F3/1203—Improving or facilitating administration, e.g. print management
- G06F3/1208—Improving or facilitating administration, e.g. print management resulting in improved quality of the output result, e.g. print layout, colours, workflows, print preview
-
- 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
- G06F3/1238—Secure printing, e.g. user identification, user rights for device usage, unallowed content, blanking portions or fields of a page, releasing held jobs
-
- 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
- G06F3/1244—Job translation or job parsing, e.g. page banding
- G06F3/1247—Job translation or job parsing, e.g. page banding by conversion to printer ready format
-
- 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
- G06F3/1254—Automatic configuration, e.g. by driver
-
- 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
- G06F3/1275—Print workflow management, e.g. defining or changing a workflow, cross publishing
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Quality & Reliability (AREA)
- Accessory Devices And Overall Control Thereof (AREA)
Abstract
The invention provides a printing process management and control method, a printing process management and control system, a printing process management and control terminal and a storage medium, wherein the printing process management and control system comprises the following steps: extracting authorized printer driver information from all printer driver information, and selecting an actual printer driver from the authorized printer drivers; setting a virtual printer; analyzing the printing request and sending the printing data in the printing request to the virtual printer for carrying out preset format conversion; performing service logic processing on the printing data in a preset format; and calling an actual printing driver to print the printing data which is processed by the business logic. The invention can finely control the printing process and approve the printing data before the final execution of printing, thereby avoiding errors of the final printed file.
Description
Technical Field
The invention relates to the technical field of file printing, in particular to a printing process control method, a printing process control system, a printing process control terminal and a storage medium.
Background
The CUPS (Common UNIX Printing System) is a Printing System supported in Fedora Core3, and mainly uses ipp (internet Printing protocol) to manage print jobs and queues, but also supports communication protocols such as "LPD" (Line Printer Daemon), "SMB" (Server Message Block), and AppSocket.
In the current printing process, a CUPS service directly sends a printing program of an application program to a physical printer, the intermediate process is uncontrollable, and the problems that printed files have some messy codes or information loss and the like often occur. And the printed files are checked or collated manually, so that tiny problems can not be found, and troubles are caused to users.
Disclosure of Invention
In view of the above-mentioned deficiencies of the prior art, the present invention provides a method, a system, a terminal and a storage medium for managing and controlling a printing process, so as to solve the above-mentioned technical problems.
In a first aspect, the present invention provides a method for managing and controlling a printing process, including:
extracting authorized printer driver information from all printer driver information, and selecting an actual printer driver from the authorized printer drivers;
setting a virtual printer;
analyzing the printing request and sending the printing data in the printing request to the virtual printer for carrying out preset format conversion;
performing service logic processing on the printing data in a preset format;
and calling an actual printing driver to print the printing data which is processed by the business logic.
Further, the extracting authorized printer driver information from all printer driver information includes:
connecting a CUPS service port and canceling a CUPS service default port;
intercepting a response IPP message returned by the CUPS service to a request IPP message sent by an application program;
extracting printer driving information in the response IPP message;
filtering out unauthorized printer driver names in the printer driver information;
the authorized printer driver name is sent to the application.
Further, the method further comprises:
extracting an actual printing drive name and printing data in the printing request;
modifying the actual printing drive name into a drive name of a virtual printer;
and sending the modified printing request to a CUPS service, and forwarding the printing data to the virtual printer by the CUPS service.
Further, the method further comprises:
saving the actual printing drive name;
and sending the printing data which is processed by the service logic and the actual printing drive name to a CUPS service, and sending the printing data which is processed by the service logic to an actual physical printer by the CUPS service according to the actual printing drive name.
Further, the method further comprises:
setting a target format of the print data to a PDF format;
the print data converted into the PDF format by the virtual printer is stored to the magnetic disk.
Further, the performing service logic processing on the print data in the preset format includes:
setting an examination and approval manager and an examination and approval sequence;
and sending the printing data to an approval manager for approval according to the approval sequence.
In a second aspect, the present invention provides a printing process management and control system, including:
a driver screening unit configured to extract authorized printer driver information from all printer driver information and select an actual printer driver from the authorized printer drivers;
a virtual setting unit configured to set a virtual printer;
the format conversion unit is configured to analyze the printing request and send printing data in the printing request to the virtual printer for preset format conversion;
the service processing unit is configured to perform service logic processing on the print data in the preset format;
and the printing execution unit is configured to call the actual printing driver to print the printing data which completes the service logic processing.
Further, the driving sieve unit includes:
the port setting module is configured for connecting the CUPS service port and canceling the CUPS service default port;
the message interception module is configured for intercepting a response IPP message returned by the CUPS service to a request IPP message sent by an application program;
the drive extraction module is configured to extract printer drive information in the response IPP message;
a driver filtering module configured to filter out unauthorized printer driver names in the printer driver information;
a driver return module configured to send the authorized printer driver name to the application.
In a third aspect, a terminal is provided, including:
a processor, a memory, wherein,
the memory is used for storing a computer program which,
the processor is used for calling and running the computer program from the memory so as to make the terminal execute the method of the terminal.
In a fourth aspect, a computer storage medium is provided having stored therein instructions that, when executed on a computer, cause the computer to perform the method of the above aspects.
The beneficial effect of the invention is that,
according to the printing process management and control method, the printing process management and control system, the printing process management and control terminal and the storage medium, functions of printer list replacement, printing drive replacement, task submission approval, log recording and the like are completed by intercepting the cups request, and the whole life cycle management and control of the printing process are realized. The invention can finely control the printing process and approve the printing data before the final execution of printing, thereby avoiding errors of the final printed file.
In addition, the invention has reliable design principle, simple structure and very wide application prospect.
Drawings
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic flow diagram of a method of one embodiment of the invention.
FIG. 2 is a schematic flow diagram of a method of one embodiment of the invention.
FIG. 3 is a schematic block diagram of a system of one embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments. 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 schematic flow diagram of a method of one embodiment of the invention. The execution subject in fig. 1 may be a printing process management and control system.
As shown in fig. 1, the method 100 includes:
and 150, calling an actual printing driver to print the printing data which is processed by the service logic.
In order to facilitate understanding of the present invention, the printing process management and control method provided by the present invention is further described below with reference to the principle of the printing process management and control method of the present invention and the process of managing and controlling the printing process in the embodiments.
Specifically, as shown in fig. 2, the printing process management and control method includes:
s1, extracting the authorized printer driver information from all the printer driver information, and selecting the actual printer driver from the authorized printer drivers.
The printing flow management and control system provided by the invention replaces 631 default ports of the CUPS service, and intercepts a request IPP message sent by an application program (WPS, PLUMA and the like) and a response IPP message returned by the CUPS service aiming at the request IPP message. And filtering the printer list report data returned by the CUPS service. Unauthorized printers in the list are filtered out, and only authorized printers are exposed to the application. The actual print driver is selected (executed) from the authorized printers by the user at the application side.
S2, setting a virtual printer.
A printer driver is set, which is not connected with a physical printer and is only responsible for converting the printing data into PDF format (other formats can be set according to the needs of users).
And S3, analyzing the printing request and sending the printing data in the printing request to the virtual printer for preset format conversion.
And after receiving a printing request submitted by an application program, analyzing the printing request to obtain an actual printing drive name and printing data. And saving the actual printing driver name to a configuration file, changing the actual printing driver name in the message into the driver name of the virtual printer, and forwarding the modified printing request to the CUPS service. The CUPS service transmits the print data to the virtual printer after parsing the print request.
And after converting the printing data into the PDF format, the virtual printer stores the printing data in the PDF format to a magnetic disk. And simultaneously writing the storage path into the conversion completion prompt message and returning.
And S4, performing business logic processing on the print data in the preset format.
And after receiving the prompt information, collecting the printing data in the PDF format according to the storage path, submitting the printing data to an approval process, wherein the approval administrator and the approval sequence of the approval process are preset, and submitting the account of the approval administrator according to the approval sequence.
And S5, calling the actual printing driver to print the printing data which is processed by the business logic.
After the service logic processing is completed, the configuration file in step S3 is read, the actual printer driver name selected by the user is acquired, and the processed PDF-formatted print data is sent to the CUPS service. The CUPS service sends the data to the actual physical printer, completing the printing.
As shown in fig. 3, the system 300 includes:
a driver screening unit configured to extract authorized printer driver information from all printer driver information and select an actual printer driver from the authorized printer drivers;
a virtual setting unit configured to set a virtual printer;
the format conversion unit is configured to analyze the printing request and send printing data in the printing request to the virtual printer for preset format conversion;
the service processing unit is configured to perform service logic processing on the print data in the preset format;
and the printing execution unit is configured to call the actual printing driver to print the printing data which completes the service logic processing.
Optionally, as an embodiment of the present invention, the driving screening unit includes:
the port setting module is configured for connecting the CUPS service port and canceling the CUPS service default port;
the message interception module is configured for intercepting a response IPP message returned by the CUPS service to a request IPP message sent by an application program;
the drive extraction module is configured to extract printer drive information in the response IPP message;
a driver filtering module configured to filter out unauthorized printer driver names in the printer driver information;
a driver return module configured to send the authorized printer driver name to the application.
Fig. 4 is a schematic structural diagram of a terminal system 400 according to an embodiment of the present invention, where the terminal system 400 may be used to execute a printing process management and control method according to the embodiment of the present invention.
The terminal system 400 may include: a processor 410, a memory 420, and a communication unit 430. The components communicate via one or more buses, and those skilled in the art will appreciate that the architecture of the servers shown in the figures is not intended to be limiting, and may be a bus architecture, a star architecture, a combination of more or less components than those shown, or a different arrangement of components.
The memory 420 may be used for storing instructions executed by the processor 410, and the memory 420 may be implemented by any type of volatile or non-volatile storage terminal or combination thereof, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk. The executable instructions in memory 420, when executed by processor 410, enable terminal 400 to perform some or all of the steps in the method embodiments described below.
The processor 410 is a control center of the storage terminal, connects various parts of the entire electronic terminal using various interfaces and lines, and performs various functions of the electronic terminal and/or processes data by operating or executing software programs and/or modules stored in the memory 420 and calling data stored in the memory. The processor may be composed of an Integrated Circuit (IC), for example, a single packaged IC, or a plurality of packaged ICs connected with the same or different functions. For example, the processor 410 may include only a Central Processing Unit (CPU). In the embodiment of the present invention, the CPU may be a single operation core, or may include multiple operation cores.
A communication unit 430, configured to establish a communication channel so that the storage terminal can communicate with other terminals. And receiving user data sent by other terminals or sending the user data to other terminals.
The present invention also provides a computer storage medium, wherein the computer storage medium may store a program, and the program may include some or all of the steps in the embodiments provided by the present invention when executed. The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM) or a Random Access Memory (RAM).
Therefore, the invention finishes the functions of printer list replacement, printing drive replacement, task submission approval, log recording and the like by intercepting the cups request, realizes the full life cycle management and control of the printing process, can finely manage and control the printing process, approves the printing data before the final execution of printing, and avoids the errors of the final printed file. The technical effects achieved by the present embodiment can be referred to the above description, and are not described herein again.
Those skilled in the art will readily appreciate that the techniques of the embodiments of the present invention may be implemented as software plus a required general purpose hardware platform. Based on such understanding, the technical solutions in the embodiments of the present invention may be embodied in the form of a software product, where the computer software product is stored in a storage medium, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and the like, and the storage medium can store program codes, and includes instructions for enabling a computer terminal (which may be a personal computer, a server, or a second terminal, a network terminal, and the like) to perform all or part of the steps of the method in the embodiments of the present invention.
The same and similar parts in the various embodiments in this specification may be referred to each other. Especially, for the terminal embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant points can be referred to the description in the method embodiment.
In the embodiments provided in the present invention, it should be understood that the disclosed system and method can be implemented in other ways. For example, the above-described system embodiments are merely illustrative, and for example, the division of the units is only one logical functional division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, systems or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
Although the present invention has been described in detail by referring to the drawings in connection with the preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and scope of the present invention, and these modifications or substitutions are within the scope of the present invention/any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A printing process management and control method is characterized by comprising the following steps:
extracting authorized printer driver information from all printer driver information, and selecting an actual printer driver from the authorized printer drivers;
setting a virtual printer;
analyzing the printing request and sending the printing data in the printing request to the virtual printer for carrying out preset format conversion;
performing service logic processing on the printing data in a preset format;
and calling an actual printing driver to print the printing data which is processed by the business logic.
2. The method of claim 1, wherein extracting authorized printer driver information from all printer driver information comprises:
connecting a CUPS service port and canceling a CUPS service default port;
intercepting a response IPP message returned by the CUPS service to a request IPP message sent by an application program;
extracting printer driving information in the response IPP message;
filtering out unauthorized printer driver names in the printer driver information;
the authorized printer driver name is sent to the application.
3. The method of claim 1, further comprising:
extracting an actual printing drive name and printing data in the printing request;
modifying the actual printing drive name into a drive name of a virtual printer;
and sending the modified printing request to a CUPS service, and forwarding the printing data to the virtual printer by the CUPS service.
4. The method of claim 3, further comprising:
saving the actual printing drive name;
and sending the printing data which is processed by the service logic and the actual printing drive name to a CUPS service, and sending the printing data which is processed by the service logic to an actual physical printer by the CUPS service according to the actual printing drive name.
5. The method of claim 1, further comprising:
setting a target format of the print data to a PDF format;
the print data converted into the PDF format by the virtual printer is stored to the magnetic disk.
6. The method according to claim 1, wherein the performing business logic processing on the print data in the preset format comprises:
setting an examination and approval manager and an examination and approval sequence;
and sending the printing data to an approval manager for approval according to the approval sequence.
7. A printing process management and control system, comprising:
a driver screening unit configured to extract authorized printer driver information from all printer driver information and select an actual printer driver from the authorized printer drivers;
a virtual setting unit configured to set a virtual printer;
the format conversion unit is configured to analyze the printing request and send printing data in the printing request to the virtual printer for preset format conversion;
the service processing unit is configured to perform service logic processing on the print data in the preset format;
and the printing execution unit is configured to call the actual printing driver to print the printing data which completes the service logic processing.
8. The system of claim 7, wherein the driven screening unit comprises:
the port setting module is configured for connecting the CUPS service port and canceling the CUPS service default port;
the message interception module is configured for intercepting a response IPP message returned by the CUPS service to a request IPP message sent by an application program;
the drive extraction module is configured to extract printer drive information in the response IPP message;
a driver filtering module configured to filter out unauthorized printer driver names in the printer driver information;
a driver return module configured to send the authorized printer driver name to the application.
9. A terminal, comprising:
a processor;
a memory for storing instructions for execution by the processor;
wherein the processor is configured to perform the method of any one of claims 1-6.
10. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the method according to any one of claims 1-6.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010017874.3A CN111240610A (en) | 2020-01-08 | 2020-01-08 | Printing process management and control method, system, terminal and storage medium |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010017874.3A CN111240610A (en) | 2020-01-08 | 2020-01-08 | Printing process management and control method, system, terminal and storage medium |
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| CN111240610A true CN111240610A (en) | 2020-06-05 |
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| CN202010017874.3A Withdrawn CN111240610A (en) | 2020-01-08 | 2020-01-08 | Printing process management and control method, system, terminal and storage medium |
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| CN113467725A (en) * | 2021-06-16 | 2021-10-01 | 湖南中观天下科技有限公司 | Output management method, system, equipment and medium for Linux platform graphic application program |
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