KR101086903B1 - File managing device of client apparatus and server connected thereto - Google Patents

Abstract

A file management apparatus of a client terminal and a server connected to the file management apparatus are disclosed. The server includes a transceiver for transmitting and receiving data with the client terminal; An authentication unit for authenticating a client terminal user requesting a connection to a server; A conversion unit for generating an authentication image by adding specified information to a target image received from the client terminal when the authentication unit authenticates the client terminal or the client terminal user, wherein the target image is an image to be printed; And a printer control unit for controlling the target printer to output the authentication image from the target printer, which is a printer designated according to the client terminal user, when the authentication unit authenticates the authentication unit. According to the present invention, the electronic file included in the client terminal can be printed only through the authorized target printer, and the server controls the target printer selected from the target printer list designated for each client terminal user. The advantage is that no configuration is required.

Server, client terminal, security, printing

Description

File management device of the client terminal, the server connected to the file management device {File managing device of client apparatus and server connected

The present invention relates to an apparatus for managing a file of a client terminal, and more particularly, to a file management apparatus for managing a file in a client terminal, and a server connected to the file management apparatus.

In general, most documents related to work are produced by computer-based electronic documents. Such electronic documents are generally managed in a system in which a server and a plurality of client terminals are connected.

The electronic documents managed in such a system include many long-term research and development results, and many confidential documents that require security.

Electronic document security in the server is relatively easy, but there is a problem that it is relatively difficult to manage the electronic documents in a plurality of client terminals connected to the server.

Looking at the file management apparatus of the conventional client terminal, there is a problem that only supports documents written in the formal business format. In the client terminal, the confidential file downloaded from the server is transformed into various formats such as various word processors (for example, Hangul, Word) or office files (for example, Excel, PowerPoint), and the official, Informally send and receive. However, there is a problem that the file management apparatus of the client terminal according to the related art does not limit the file deformation of various formats.

Referring to the file management apparatus of the conventional client terminal, only the authenticated client terminal can download a predetermined file from the server, but if the client user does not delete the file even after the official business hours are over, the file remains on the client terminal. After that, there is a problem that there is a possibility that the leak later leaks in security.

In particular, according to the file management apparatus of the conventional client terminal, there is a problem in that the management of the electronic file remaining in the client terminal is informally printed through a printer or the like is weak.

In addition, according to the conventional file management apparatus of the client terminal, even if it is managed by printing through an authenticated printer, if the designated printer is changed or there is a failure in the designated printer, the client terminal resets the setting for the designated printer. There is a problem that the hassle that should be done.

An object of the present invention is to propose a file management apparatus for providing secure sharing between a server and a client terminal for data related to a task, and a server connected to the file management apparatus.

Another object of the present invention is to propose a file management apparatus capable of preventing unauthorized leakage of work-related data from a client terminal, and a server connected to the file management apparatus.

Still another object of the present invention is to print the electronic file included in the client terminal only through the authorized target printer, and since the server controls the target printer, the client terminal does not need to set the target printer, the file management apparatus, the It is proposed a server connected to a file management device.

According to an aspect of the invention, the server connected to the client terminal, Transmitting and receiving unit for transmitting and receiving data with the client terminal; An authentication unit for authenticating a client terminal user requesting to connect to the server; A conversion unit for generating an authentication image by adding specified information to a target image received from the client terminal when the authentication unit authenticates the client terminal user, wherein the target image is an image to be printed; And a printer control unit for controlling the target printer so that the authentication image is output from the target printer, which is a printer designated according to the client terminal user, when the authentication unit authenticates the printer. A server is provided.

According to another aspect of the present invention, in the file management system including a file management device for managing files of the client terminal and a server connected to the file management device,

The server is

Transmitting and receiving unit for transmitting and receiving data with the client terminal; An authentication unit for authenticating the client terminal or the client terminal user; A conversion unit for generating an authentication image by adding specified information to a target image received from the client terminal when the authentication unit authenticates the client terminal user, wherein the target image is an image of a print target file; And a printer control unit for controlling the target printer to output the authentication image from the target printer, which is a printer designated according to the client terminal user, when the authentication unit authenticates the printer including the printer information to which the client terminal is connected.

The file management apparatus may include a job printer generation unit configured to generate a job printer which is a virtual printer connected to the client terminal; And when receiving a printer information request of the client terminal from an application layer or intercepting a printer information request transmitted from the application layer to a kernel layer, the printer information to which the information of the working printer is added to the application layer. A file management system is provided comprising a shell control for controlling the shell layer to transmit.

According to another aspect of the present invention, a method for managing a file of the client terminal in a server connected to the client terminal, comprising: (a) authenticating a client terminal user requesting to connect to the server; (b) receiving a target image and a print request which are images of a print target file from the client terminal; (c) generating an authentication image by adding specified information to the target image; And (d) controlling the target printer to output the authentication image from a target printer which is a printer designated according to the client terminal user.

According to another aspect of the present invention, in a file management system including a file management device for managing files of a client terminal and a server connected to the file management apparatus, (a) the method for managing files of the client terminal; Authenticating, by the server, a client terminal user requesting to connect to the server; (b) generating a job printer which is a virtual printer in the file management apparatus, and controlling a shell layer of the client terminal so that the job printer information is displayed to the client terminal user; (c) generating a target image by converting the print command target file into an image when a print command for the job printer is input by the file management apparatus; (d) generating an authentication image by adding information designated to the target image according to a print request and a target image received from the file management apparatus at the server; (e) providing a file management method including controlling the target printer to output the authentication image from a target printer which is a printer designated according to the client terminal user in the server.

According to another aspect of the invention, there is implemented a program of instructions that can be executed by the server to perform a method of managing a file of the client terminal in a server connected to the client terminal, to be read by the server. A recording medium recording a program, comprising: (a) authenticating a client terminal user requesting to connect to the server; (b) receiving a target image and a print request which are images of a print target file from the client terminal; (c) generating an authentication image by adding specified information to the target image; And (d) controlling the target printer to output the authentication image from a target printer which is a printer designated according to the client terminal user.

According to another aspect of the present invention, to perform a method of managing a file of a client terminal, to be executed by a file management system including a file management apparatus for managing files of the client terminal and a server connected to the file management apparatus; A recording medium in which a program of instructions can be implemented, the program recording a program which can be read by the file management system, comprising: (a) authenticating a client terminal user requesting to connect to the server from the server; (b) generating a job printer which is a virtual printer in the file management apparatus, and controlling a shell layer of the client terminal so that the job printer information is displayed to the client terminal user; (c) generating a target image by converting the print command target file into an image when a print command for the job printer is input by the file management apparatus; (d) generating an authentication image by adding information designated to the target image according to a print request and a target image received from the file management apparatus at the server; (e) A recording medium having a program recorded thereon which performs the step of controlling the target printer to output the authentication image from the target printer which is a printer designated according to the client terminal user in the server.

File management apparatus according to an embodiment of the present invention, the server connected to the file management apparatus has the advantage of providing a secure sharing between the server and the client terminal for the data related to the task.

In addition, there is an advantage that can prevent unauthorized leakage of work-related data in the client terminal.

In addition, the electronic file included in the client terminal can be printed only through the authenticated target printer, and since the server controls the target printer selected from the target printer list designated for each client terminal user, the client terminal needs to be set for the target printer. There is no advantage.

As the invention allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all transformations, equivalents, and substitutes included in the spirit and scope of the present invention. In the following description of the present invention, if it is determined that the detailed description of the related known technology may obscure the gist of the present invention, the detailed description thereof will be omitted.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, the same reference numerals will be used for the same means regardless of the reference numerals in order to facilitate the overall understanding.

1 is a diagram illustrating a structure in which a file management apparatus, a client terminal, and a server are connected according to an embodiment of the present invention.

Referring to FIG. 1, a file management system to which a file management method according to an exemplary embodiment of the present invention may be applied may be a system in which a server 110 and a client terminal connected to the server are connected to a network 120.

Hereinafter, for convenience of explanation, the client terminal 101 will be referred to collectively.

In addition, the number of client terminals illustrated in FIG. 1 is merely an example, and the number is not limited to those skilled in the art.

Hereinafter, the file management apparatus according to an embodiment of the present invention may be a recording medium in which a program capable of performing the file management method according to the embodiment of the present invention is recorded, and also a client terminal in which the program is recorded. It also clarifies that the program may be recorded as part of the client terminal or as part of connected components.

Therefore, in the following description of the embodiments of the present invention, the client terminal 101 and the file management apparatus 100 are described separately for the purpose of understanding, but as described above, they can be used in a similar sense. do.

Hereinafter, as illustrated in FIG. 1, the file management apparatus according to the embodiment of the present invention is referred to as a file management apparatus 100.

Hereinafter, if the client terminal is an electronic device that is wired and / or wirelessly connected to the server and can transmit and receive data with the server, the client terminal may be applicable regardless of other names and other functions.

Hereinafter, the configuration of the file management apparatus 101 and the server 110 according to the first embodiment of the present invention will be described with reference to FIGS. 2 and 3.

2 is a block diagram illustrating a configuration of the server 110 according to the first embodiment of the present invention.

Referring to FIG. 2, the server 110 according to the first embodiment of the present invention may include a transceiver 111, a storage 112, and an authenticator 113.

The transceiver 111 may transmit and receive data between the client terminals 101.

The storage unit 112 may store data.

The authenticator 113 may authenticate the client terminal 101 or the user of the client terminal 101 requesting to connect to the server 110. Here, it is apparent to those skilled in the art that the authentication method can be applied to a number of known techniques.

The storage space of the storage unit 112 may be classified and designated as a storage space accessible by the authority granted to the client terminal 101 or the user of the client terminal 101 requesting to connect to the server 110.

For example, suppose that Firm A has several services (for example, a service, b service, and c service). And suppose A is involved in a service but not b service. And, suppose that the request to connect to the server 110 using the client terminal 101. In this case, only information about a service folder in which file contents related to a service are stored in the storage space of the server 113 may be provided to the client terminal 101 used by A.

The information on the storage space of the server 110 is differentiated according to the authority granted to the user of the client terminal.

 Since it can be provided to the terminal 101 is a known technique, detailed description thereof will be omitted.

Hereinafter, a file management apparatus according to an exemplary embodiment of the present invention will be described with reference to FIG. 3.

3 is a block diagram illustrating a configuration of a file management apparatus 101 according to a first embodiment of the present invention, FIG. 4 is a view for explaining the structure of an operating system (OS), and FIG. 5 is an embodiment of the present invention. According to an example, work area information and server storage space information are queried.

Referring to FIG. 3, the file management apparatus 101 according to the first embodiment of the present invention includes a transceiver 301, a storage unit 302, a work area setting unit 303, a shell control unit 304, It may include one or more of the file manager 305, the monitoring unit 306 and the history unit (310).

The transceiver 301 may be an existing transceiver that transmits / receives data to / from another external device provided in a computer or the like, and may be separately provided as illustrated in FIG. 3 according to an embodiment.

The storage unit 302 may also be a permanent or temporary storage device such as an existing hard disk or ram disk which is provided in a computer or the like, and may be separately provided as illustrated in FIG. 2 according to an embodiment. have.

The work area setting unit 303 may set a portion of the idle storage space of the storage unit 302 as a work area which is a virtual storage space according to an embodiment of the present invention.

For example, the work area setting unit 303 may use a virtual hard disk as a storage space having a predetermined size of 10 gigabytes in an idle storage space among the hard disks that are the storage unit 302 of the client terminal 101. disk) as your workspace.

According to an embodiment of the present invention, the size of the work area set by the work area setting unit 303 may be set in various ways with reference to the total size of the storage space of the client terminal 101, the size of the idle storage space, or a designated value. Can be.

Here, the set work area may be recognized as a virtual storage space by the client terminal 100 as a virtual folder or a virtual hard disk. This point will be described later in the shell control unit 304.

The shell control unit 304 will be described below with reference to FIG. 4.

The operating system of the client terminal includes a kernel layer 401 as a first layer, a shell layer 402 as a second layer, and an application layer 403 as a third layer. Can be classified as).

Here, since the classification of the operating system is a known technique, the present disclosure will be briefly described within the limits for describing the shell controller 304 according to the exemplary embodiment of the present invention.

The kernel layer 401 is a core part of the operating system and may include an interface between the hardware layers 401. The kernel layer 401 is responsible for the security of the hardware and the processor of the client terminal, and efficiently manages limited system resources to smoothly execute the application. In addition, the kernel layer 401 may be implemented with hardware abstractions to provide a consistent interface to various operating systems on hardware that may be implemented in various ways.

The shell layer 402 surrounds the kernel layer 401 and has an interface between the kernel layer 401 and the application layer 403, and from the application layer 403 to the kernel layer 402 according to user input. It can play a role in delivering commands.

The application layer 403 may be an application installed in the client terminal 101.

In some cases, the operating system may include a kernel layer 401 and a shell layer 402. Microsoft's Windows, for example.

However, in the present specification, it is clarified that the conceptual description is divided into a kernel layer 401 that interfaces with hardware and a shell layer 402 that interprets and delivers commands from the application layer to the kernel layer 401.

In addition, many programs can be included in the operating system, such as Microsoft's Windows. Hereinafter, in this specification, a program except for the kernel layer 401 and the shell layer 402 will be described as being included in the application layer 403.

For example, a file explorer for searching and copying a file included in a storage device in Microsoft Windows, and a device manager program for viewing the information of the storage device may be an application. The shell layer 402 And the hardware of the client terminal 101 through the kernel layer 401.

Referring back to FIG. 3, the shell controller 304 according to an embodiment of the present invention receives a storage information request of the client terminal 101 from an application layer, or stores the request transmitted from the application layer to the kernel layer 401. When intercepting a device information request, the shell layer may be controlled to transmit storage information to the application layer.

In this case, the storage device information may include storage space information of the server 110 designated by the client terminal 101 in the server 110 and workspace information set by the workspace setting unit 203.

In addition, the shell controller 304 may control the shell layer 402 such that all or part of storage information is displayed to the user of the client terminal 101 in the application layer.

Here, since the shell control unit 304 controls the shell layer 402 so that all of the storage information is displayed to the user of the client terminal 101, the following description will be given in detail by referring to a case where only some of the storage information is displayed. do.

<case # 1>

Hereinafter, assume that a hard disk of 100 gigabytes is provided as the storage unit 302 of the client terminal 101.

According to an embodiment of the present invention, the work area setting unit 303 may set 10 gigabytes of idle space of the hard disk as a work area that is a virtual storage space. For example, the work area setting unit 303 may set a work space having a set capacity of 10 gigabytes as a virtual hard disk having a driver name Z or a folder having a folder name as Z. Referring to FIG. 5, an example is shown in which the work area is set to a hard disk having a driver name of Z (see reference numeral 501 of FIG. 5).

In addition, when the example described in FIG. 2 is described consistently, when the user A is connected to the server 110 through the client terminal 101, the service folder information may be received as the storage space information of the server 110. (See 502 in FIG. 5).

According to an embodiment of the present invention, in addition to the hard disk information (for example, a hard disk having a driver name C) provided in the client terminal 101, the work area information (for example, the work area (Z :), 501) and The shell control unit 304 may control the shell layer 402 such that the storage information further including the service folder information 502 is transmitted to the application layer. In addition, the shell control unit 304 may control the shell layer 402 such that only the workspace information (for example, workspace Z: 501) and a service folder information 502 is output to the user. .

For example, assume that A runs a window explorer that is considered an application herein.

In this case, the window explorer, which is an application, requests storage information from the shell layer 303 or the kernel layer 401 according to an implementation method.

The shell controller 304 according to an embodiment of the present invention may receive a storage device information request from a window explorer as an application or intercept a storage policy information request to the kernel layer 401 from a window explorer as an application. Can be.

In addition to the C drive information that is the storage device information of the client terminal 101, the shell control unit 304 includes work area information (for example, work area Z: 501) and a service that is a storage space information of the server. The shell layer 402 may be controlled to transmit storage information further including folder information 502 to a window explorer, which is an application.

Here, the shell controller 304 according to the embodiment of the present invention controls the shell layer 402 such that only workspace information (for example, Z hard disk) and a service folder information 502 are output to the user in the Windows Explorer. can do.

Referring to FIG. 5, A can query only the work area information (for example, work area (Z :), 501) and a service folder information 502 in the left window of the window explorer, and the corresponding position in the right window. You can search the data of.

Therefore, according to the embodiment of the present invention, A will not be able to move or copy data stored in the service folder 502 to another device besides the work area 501.

The file management apparatus of a client terminal according to the related art has a security problem because data contained in a storage space of a server may be copied to an external memory such as a USB memory, or recorded on a CD or leaked.

However, according to an embodiment of the present invention, since only the storage space information of the server for inquiring data and the workspace information that are managed separately are inquired in the application, the possibility of withholding the possibility of storing them in another location can be blocked. There is this.

<case # 2>

While the foregoing example is kept consistent, other embodiments are described.

Suppose A creates aaa.doc, the contract document for service A.

When the word program, which is an application, receives a storage command from the computer, the word program, which is an application, may request storage information from the shell layer 302 or the kernel layer 301 to guide the storage location.

The shell controller 304 according to an embodiment of the present invention may receive a storage information request from the application layer 403 or intercept a storage information request transmitted from the application layer 403 to the kernel layer 401. .

In addition to the hard disk information of the client terminal 101, the shell controller 304 may transmit the work area information (for example, the hard disk Z) and a service folder information among the storage spaces of the server to the application layer.

The shell controller 304 outputs only work area information (for example, hard disk Z) and server a service folder information when outputting storage information to guide a storage location to a user in a word, which is an application. The shell layer 302 can be controlled to do so.

FIG. 6 is a diagram illustrating an example in which only a service folder 602 of a work area (for example, work area (Z)) 601 and a storage space of a server is outputted from a storage location designation in a word that is an application.

Therefore, according to the embodiment of the present invention, Ab can specify the storage location of the generated aaa.doc document only in the Z drive 601 which is a work area or a service folder 602 of the server.

The case where A designates a storage location of aaa.doc as a folder which is a storage space of a server will be described later in the file manager 305.

Therefore, according to the embodiment of the present invention, since A can store aaa.doc only in a storage space of a workspace or a server that is managed separately, there is an advantage that the possibility of storing in another storage medium can be blocked.

Referring back to FIG. 3, when the file manager 305 receives a predetermined file from the storage space of the server 110 in the client terminal 101, the file manager 305 may store the file only in the work area. At this time, it will be apparent to those skilled in the art that the file management unit 305 can output to the user a UI (User Interface) for inquiring in which folder of any folder existing in the work area.

For example, in the environment illustrated in FIG. 5, the user Ab may copy the bbb.doc file from a service folder 502, which is a storage space of the server, and store the bbb.doc file in the workspace (Z :) 501. In this case, the file management unit 305 controls the transceiver unit 301 to receive the bbb.doc file from the storage unit 112 of the server, and the received bbb.doc file to the work area (Z :) 501. Can be stored.

On the contrary, if the user A creates in the work area (Z :) 501 or edits a previously received file in the work area (Z :) 501 and copies it to a service folder. The file manager 305 may control the transceiver 301 to transmit the file to the storage 112 of the server.

For example, in the environment illustrated in FIG. 6, when the user group stores the generated bbb.doc file in the a service folder 602, the file manager 305 controls the transceiver 301 to control the bbb.doc file. The file may be transmitted to the storage 112 of the server. The storage 112 of the server may store the received bbb.doc file in a service folder.

At this time, according to the environment to which the embodiment of the present invention is applied, the file management unit 305 first stores bbb.doc in the work area (Z :) 601 and fails to transmit the data to the storage unit 112 of the server. If so, you can resend the saved bbb.doc file again. In this case, when the transfer is completed, the bbb.doc file stored in the work area (Z :) 601 may be deleted.

In addition, when the connection between the server 110 and the client terminal 101 is released, the file manager 305 may permanently delete data stored in the work area (Z :) 601.

Of course, before the file management unit 305 permanently deletes the data stored in the work area (Z :) 601 according to an embodiment of the present invention, the client terminal user induces the storage in the a service folder 602. It is apparent to those skilled in the art that a message can be output.

In addition, according to the environment to which the embodiment of the present invention is applied, the file management unit 305 monitors whether the file size, name, etc. of the file stored in the work area is changed, and if there is a changed file, the client terminal user Gap a service folder ( It is apparent to those skilled in the art that the transceiver 301 may be controlled to output a message for inducing storage at 602 or to automatically transmit the message without outputting the message.

In addition, when the file management unit 305 controls the transceiver unit 301 to transmit the changed file to the server 110 in accordance with an embodiment of the present invention, the file management unit 305 includes one or more of the change date information and the user information of the client terminal; It is apparent to those skilled in the art in view of the technical spirit of the present invention that the transmission.

The monitoring unit 306 monitors whether the file generated, modified or changed in the client terminal 101 is stored outside the workspace (Z :) 601 and the storage space (for example, a service folder) of the server, If a file is stored outside the workspace (Z :) 601 and a storage space (eg, a service folder) of the server, the file may be permanently deleted.

For example, according to an environment to which the present invention is applied, the shell control unit 304 controls the shell layer 402 so that all of the client terminal 101 storage information is displayed to the user of the client terminal 101. 402 can be controlled. In this case, unlike illustrated in FIG. 6, a hard disk C drive or other USB memory may be displayed in the storage location information of the application, and may be designated as a storage location according to a user input. In this case, according to an embodiment of the present invention, the monitoring unit 306 may permanently delete files stored outside the work area (Z :) 601 and the storage space (for example, a service folder) of the server.

For example, the shell control unit 304 outputs only a service folder 602 of the workspace (for example, workspace (Z :), 601) and the storage space of the server to be specified in the storage location designation in the word that is the application. Controlling the shell hierarchy has been described above. However, due to a malicious attempt by the user of the client terminal 101, the storage location of the file may be specified in addition to the storage area of the work area and the server. In this case, according to an embodiment of the present invention, the monitoring unit 306 may permanently delete the file when the file is stored outside the workspace and the storage space of the server.

The history unit 310 may set a predetermined storage space of the storage unit provided in the client terminal 101 as a backup area. The history unit 310 transmits the file information transmitted from the client terminal 101 to the storage space of the server 110 (for example, a service folder), date and time information of creating, modifying, and changing the file, and the file. One or more of one date information, information of the client terminal 101, and user information of the client terminal 101 may be stored.

In this regard, it is apparent to those skilled in the art in view of the technical spirit of the present invention that the predetermined storage space set as the backup may be part of a storage unit provided in the client terminal 101 or part of an external storage device connected to the client terminal 101. Self-explanatory

Here, the backup area set by the history unit 310 may be set not to be displayed to the user of the client terminal 101.

Here, the backup area set by the history unit 310 may be maintained even if the connection between the client terminal 101 and the server 110 is released, and the above information may be continuously stored in the backup area maintained.

In this case, the information stored in the backup area set by the history unit 310 may be variously designated as the information of the last three days or the last 100 information about the information.

Therefore, according to the exemplary embodiment of the present invention, there is an advantage in that it is easy to prove whether an arbitrary file is transmitted from the client terminal 101 to the server 110.

So far, the components of the server and the file management apparatus and the functions of each component have been described with reference to FIGS. 2 to 6.

Each component described above is activated when a connection is made between the client terminal 101 and the server 100, and may be deactivated when the connection between the client terminal 101 and the server 100 is released. It is obvious to those skilled in the art in view of the spirit.

However, it is intended to clarify that the division of the above-described components is only divided by the main function of each component. That is, two or more components may be combined into one component, or one component may be divided into two or more functions for each subdivided function. In addition, each of the above-described components may additionally perform some or all of the functions of other components in addition to the main functions of their own, and some of the main functions of each of the components are performed by other components. Of course, it may be carried out exclusively. Therefore, the presence or absence of each component described through this specification should be interpreted functionally.

Therefore, in the following description of the file management method according to the first embodiment of the present invention with reference to FIG. 7, the server 110 as a functional subject, regardless of the configuration of the server 110 and the file management apparatus 100, And the file management apparatus 100 will be described as the main subject.

7 is a flowchart illustrating a method of managing a file by the file management apparatus 100 according to the first embodiment of the present invention. More specifically, it is a flowchart illustrating a process of inquiring a predetermined file in the storage space of the server 110 in the file management apparatus 100.

Hereinafter, in order to clarify the gist of the file management method according to the first embodiment of the present invention, descriptions duplicated with the parts described with reference to FIGS. 2 to 6 will be omitted.

Referring to FIG. 7, in operation S702, the file management apparatus 100 may request a connection to the server 110. In this case, the connection request may include information of the client terminal 101 or user information of the client terminal 101.

Subsequently, in step S704, the server 110 may perform authentication using information of the client terminal or the user information of the client terminal 101 included in the connection request, and the client terminal or client terminal user authenticated in step S706. The authentication approval signal may be transmitted to the user.

Subsequently, in step S708, the file management apparatus 101 sets a storage space corresponding to a specified size among the storage devices of the client terminal as the work area, and sets the set work area information (for example, 501 of FIG. 5) to the client terminal (see FIG. 5). 101) to the user.

Subsequently, in step S710, the file management apparatus 100 may request storage space information of the server, and receive storage space information designated for each user authority of the client terminal 101 in step S712 (for example, in FIG. 5). 502).

In operation S714, the workspace information and the storage space information of the server may be output to the client terminal user. For example, as illustrated in FIG. 5, the work area information and the storage space information of the server may be output to the client terminal user from the file explorer, as described above with reference to FIG. 5.

Subsequently, in step S716, the file management apparatus 100 may request a predetermined file in a storage space of the server according to a user input, and in step S718, receive the predetermined file from the server 110, and in step S720. The received file may be stored in the work area of the file management apparatus 100.

Here, steps S716 to S720 may be performed by a user of the client terminal 101 copying a file from the storage inquiry program.

For example, steps S716 to S720 may be performed by a user of the client terminal 101 copying a file between folders in the file explorer. In more detail, the file manager 305 controls the transceiver 301 to receive a predetermined file from the server 110 and to store the received file in the work area. ).

Subsequently, after the client terminal user browses a predetermined file in step S720, the client terminal may request to release the connection between the file management apparatus 100 and the server 101 (eg, logout request). A disconnection grant signal may be received from 110.

According to the prior art, there is a problem that data relating to a task remains in the client terminal 101 at this point. In addition, there is a problem that there is a possibility that the remaining data is leaked to other outside.

According to the exemplary embodiment of the present invention, the file manager 305 may permanently delete the data stored in the work area in step S726.

In operation S726, the file management apparatus 100 may release the setting of the work area, initialize the clipboard, and copy the contents of data related to the task.

So far, the file management method according to the first embodiment of the present invention has been described with reference to FIG. 7. However, the flowchart illustrated in FIG. 7 is only an example illustrated for the purpose of understanding the invention, and the order of each step may be variously changed, and one step may be subdivided into a plurality of steps, or vice versa. It will be apparent to one skilled in the art that two steps may be performed in one step.

For example, in operation S706, the authentication approval signal may include storage information for each user right. In operation S708, the file management apparatus 100 may output storage space information of the server together with work area information.

For example, steps S710 to S712 may be performed before step S708, and the file management apparatus 100 may output storage space information and work area information of the server as in step S708 in step S708.

For example, the step of permanently deleting the file stored in the work area by the file management apparatus in step S726 may be performed in parallel with the step of releasing the setting of the work area in step S726.

8 is a flowchart illustrating a method of managing a file by the file management apparatus 100 according to the first embodiment of the present invention. More specifically, it is a flowchart illustrating a process of editing and storing a predetermined file in a storage space of the server 110 in the file management apparatus 100.

Hereinafter, referring to FIG. 8, it is assumed that step S720 described above with reference to FIG. 7 is performed.

For example, it is assumed that the user of the client terminal 101 copies a predetermined file of the service folder 502 to the work area (Z :) 501 in the environment illustrated in FIG. 5.

In operation S802, the file management apparatus 100 may edit a file according to a user's input. Although step S802 of FIG. 8 is illustrated as editing a file, a case of generating a new file may also be applicable.

Subsequently, when the file management apparatus 100 receives a storage input from the user of the client terminal 101 in step S804, whether to store the file management apparatus 100 in the work area 601 or the a service folder 602 as illustrated in FIG. 6. UI (User Interface) to select can be output.

When the storage input is received in the service folder 602, the file management apparatus 100 may transmit the corresponding file to the server 110 in step S806.

Here, before or after the file management apparatus 100 transmits the file to the server 110, the file information in the backup area, the date and time of creating, modifying and changing the file, the information of the client terminal 101, and the like. One or more of user information of the client terminal 101 may be stored.

Here, the backup area set by the file management apparatus 100 is set not to be displayed to the user of the client terminal 101, and may be maintained even if the connection between the client terminal 101 and the server 110 is released. Explained.

When the storage input is received in the work area folder 601, the file management apparatus 100 may store the corresponding file in the work area in step S808.

If the storage location of the file is specified other than the work area 601 and a service folder (ie, storage space of the server), the file management apparatus 100 may permanently delete the file. 3, 306).

Subsequently, when the file management apparatus 100 receives a disconnect request (for example, a logout input) from the client terminal user in step S810, it is inquired whether to store the file stored in the work area in the a service folder 602. You can print a message that says

Subsequently, in step S812, when the file management apparatus 100 receives a storage command from a service folder 602, the file management apparatus 100 may transmit the corresponding file to the server 110.

In this case, before or after the file management apparatus 100 transmits the file to the server 110, the file information in the backup area, the date and time of creating, modifying and changing the file, the information of the client terminal 101, and the like. As described above in step S806, one or more pieces of user information of the client terminal 101 may be stored.

Here, the file management apparatus 100 monitors whether the size, name, etc. of the file stored in the work area is changed, and if there is no change, the step S810 or less may be omitted. Self-explanatory

In addition, when step S810 illustrated in FIG. 8 is omitted, and the file management apparatus 100 has a changed file as a result of the monitoring, the changed file may be automatically transmitted to the server 110 in view of the technical spirit of the present invention. Self-explanatory

In addition, it is apparent to those skilled in the art in view of the technical spirit of the present invention that the changed file may be transmitted by including one or more of the change date information and the user information of the client terminal.

Since steps S814 to S820 overlap with the above-described portions of steps S722 to S728 of FIG. 7, a detailed description thereof will be omitted.

So far, the file management method according to the first embodiment of the present invention has been described with reference to FIGS. 7 and 8.

Hereinafter, a file management method according to a second embodiment of the present invention will be described with reference to FIG. 9.

9 and 10 are block diagrams illustrating the configuration of the server 110 and the file management apparatus 100 according to the second embodiment of the present invention, Figures 11 and 12 according to a second embodiment of the present invention. It is a figure for demonstrating the function of the shell control part 304. FIG.

9 and 10, descriptions overlapping with the components described with reference to FIGS. 2 through 5 will be omitted, and centered on the newly added or expanded functions according to the second embodiment of the present invention. Explain.

First, a server 110 according to a second embodiment of the present invention will be described with reference to FIG. 9.

Referring to FIG. 9, the server 110 according to the second embodiment of the present invention may include one of a transceiver 111, a storage 112, an authenticator 113, a converter 114, and a printer controller 115. It may contain the above.

Since the basic functions of the transceiver 111, the storage 112, and the authentication unit 113 will be described with reference to FIG. 2, duplicate description thereof will be omitted herein.

Hereinafter, the authentication unit 113, the conversion unit 114 and the printer control unit 115 will be described.

According to the second embodiment of the present invention, the file pipe apparatus 100 generates a target image by converting a print target file into an image (afterwards, the virtual printer generation unit 307 and the print control unit of the file management apparatus 100). 308) to be sent to the server 110 together with the print request.

According to the second embodiment of the present invention, the authentication unit 113 uses the client terminal user information to determine whether the client terminal user has the printing authority when the transceiver 111 receives the target image from the file management apparatus 100. Can be authenticated.

For example, the file management apparatus 100 may extract the information of the client terminal user in the process of connecting to the server 110, and may authenticate the printing authority using the extracted user information.

For example, the authentication unit 113 may extract the information of the source file included in the target image and perform authentication on the print request by using the print permission information specified in the folder where the source file is located in the storage space of the server. have.

When the authentication unit 113 authenticates, the conversion unit 114 may generate an authentication image including additional information specified in the target image received from the file management apparatus 100.

Here, the additional information is information designated to the server 110, the watermark for encryption, administrator information specified for each storage space of the server 110, print request date and time information, authentication date information and information of the client terminal, user information of the client terminal And target printer information.

The conversion unit 114 may add additional information to the target image in a bar code format, and generate an authentication image by adding it in various other well-known ways.

According to an exemplary embodiment of the present invention, the authenticator 113 may store all or part of any one of the authentication image and the target image in the storage 112 for each client terminal user.

For example, the authenticator 113 may store a part of the target image to be printed for each client terminal user in chronological order.

For example, the authentication unit 113 may store all the authentication images for each client terminal user.

It is apparent to those skilled in the art in view of the technical spirit of the present invention that the authenticator 113 stores all or a part of any one of the authentication image or the target image in the storage 112.

For example, the authenticator 113 uses the information about the original file of the target image (hereinafter, described later in the print control unit 308 of the client terminal 101) received from the client terminal 101, It is obvious to those skilled in the art in view of the technical spirit of the present invention that the file can be stored for each file.

For example, the authentication unit 113 may store the target image of the print request received at a specific time (for example, a non-working time), or in the case of the authentication image, separately stored in the storage unit. It is apparent to those skilled in the art in light of this.

Therefore, according to an exemplary embodiment of the present invention, the target image or the authentication image according to the file requested by the plurality of client terminals 101 may be stored for each client terminal user who has requested printing in the storage unit 112 of the server 110. Can be. Therefore, when the audit for printing is required later, the storage unit 112 may search for the target image or the authentication image stored for each client terminal user or for each specific file, so that the audit for printing may be easily performed. .

The printer controller 115 according to an embodiment of the present invention may include printer information to which the server 110 and / or the client terminal 101 may be connected.

For example, the printer controller 115 may include driver information of a printer to which the client terminal 101 and / or the server 110 may be connected.

For example, the printer controller 115 may include IP setting information of a network printer to which the client terminal 101 and / or the server 110 may be wirelessly connected.

In addition, the printer controller 115 according to an embodiment of the present invention may include printer (hereinafter, referred to as a "target printer") information designated according to a client terminal user.

For example, the printer controller 115 may include target printer information designated as a default for the client terminal user.

Here, the method of designating a specific printer as the target printer may be variously implemented.

For example, the target printer may be a printer that is within the shortest distance or a predetermined range from the terminal used by the client terminal user, and may be a printer designated for each client terminal used by the client terminal user. Here, it will be apparent to those skilled in the art in view of the technical spirit of the present invention that a plurality of target printers may be assigned to a client terminal user.

In addition, the authentication unit 115 according to an embodiment of the present invention may control the target printer to output the authentication image generated by the conversion unit 114 to the target printer designated for each client terminal user. Here, the target printer may be connected only to the server 110 or both the server 110 and the client terminal 101 according to the environment in which the present invention is implemented.

An example is given below.

Assume that the client terminal user A works in the human resources department, and there are two printers (first and second printers) in the human resources department and are wirelessly connected to the server 110 and the client terminal 101. And, suppose that the first printer is assigned to A by default, and the second printer is designated afterwards. That is, in this case, the first printer is the target printer.

According to the above-described assumption, the printer controller 1150 may control the first printer so that the first printer prints the authentication image generated by the converter 114.

At this time, the first printer may fail due to lack of paper, low toner or other reasons.

According to the related art, the trouble of having to newly set up the second printer in the client terminal 101 used by Gap may occur. In addition, without detailed information on the second printer (for example, printer driver and corresponding IP setting information in the case of a network printer), the setting for printing on the second printer cannot be made from the client terminal used by A. A problem occurs. Furthermore, assuming such a situation in an enterprise where dozens or thousands of clients work as client terminals, it can be seen that such a situation may occur frequently.

In the above-described assumption, according to an embodiment of the present invention, the printer controller 115 may include both first and second printer information. The printer controller 115 may control the second printer to print an authentication image when a printing error occurs in the first printer. In this case, it will be apparent to those skilled in the art in view of the technical idea of the present invention that the second printer can transmit the information indicating that the authentication image is output to the client terminal 101 by controlling the transceiver 110.

In addition, before the printer controller 115 controls the second printer and outputs an authentication image, it is possible to transmit a selection message to the client terminal 110 about whether to print on the second printer. It is obvious to those skilled in the art in light of this.

Therefore, according to the embodiment of the present invention, even if a printing error occurs in the first printer, there is an advantage that a separate setting for using the second printer in the client terminal 101 is not necessary. In addition, in selecting the first and second printers, since the management is integrated in the server 1100, there is an advantage that the management of printing is efficient.

As in the above-described example, a plurality of target printers may be designated for each client terminal user, and in this case, the plurality of designated printers may be sequentially assigned the first priority, the second priority, and the like, and the printer controller 115 may The target printer can be selected based on the assigned priority. However, according to the environment to which the present invention is applied, the printer controller 115 may provide the target printer list to the client terminal 101 and select the selected printer received from the client terminal 101 as the target printer. It is apparent to those skilled in the art in view of the technical spirit of the invention.

In the foregoing assumption, although the target printer has been described in advance, the printer information desired to be printed can be received from the client terminal 101 together with the print request and the target image according to the environment to which the present invention is applied. If there is a printer requested by the client terminal user in the target printer list designated to the client terminal user, the printer controller 115 may select the printer requested by the client terminal user as the target printer. In addition, it will be apparent to those skilled in the art that the printer controller 115 may control the target printer so that the authentication image is output from the target printer.

Further, according to the environment to which the present invention is applied, the printer control unit 115 controls the target printer and prints the client terminal user information, the print request date and time, the information of the target file that is the basis of the target image, before the authentication image is output. The content including at least one of client terminal information and target printer information may be output by inserting. Therefore, according to the embodiment of the present invention, there is an advantage that it is possible to easily determine by whom the printouts stacked around the printer are requested to be printed.

Hereinafter, the configuration of the file management apparatus 100 according to the second embodiment of the present invention will be described with reference to FIG. 10.

Referring to FIG. 10, the file management apparatus 101 according to the second embodiment of the present invention may include a transceiver 301, a storage 302, a work area setting unit 303, and a shell control unit 304. It may include one or more of the file management unit 305, the monitoring unit 306, the job printer generation unit 307, the print control unit 308 and the history unit 310.

For the basic functions of the transmission / reception unit 301, the storage unit 302, the work area setting unit 303, the shell control unit 304, the file management unit 305, and the history unit 310, see FIG. 3. Since the description will be omitted, redundant description will be omitted here.

Hereinafter, the monitoring unit 306, the job printer generating unit 307, and the print control unit 308 will be described, and the additional functions of the shell control unit 304 and the history unit 310 will be described.

The job printer generation unit 307 generates a job printer driver which is a virtual printer driver connected to the client terminal 101. More specifically, the job printer driver may be generated to recognize the job printer as a virtual printer in the shell layer 402 and the application layer 403.

The shell control unit 304 receives the print information request of the client terminal from the application layer or intercepts the print information request transmitted from the application layer 403 to the kernel layer 402. The shell layer 402 may be controlled to transmit further printer information to the application layer 403. In addition, the shell controller 304 may control the shell layer 402 such that only job printer information is output from the application layer 403 to the client terminal user or printer information further including the job printer is output.

11 illustrates a plurality of printer information connected to the client terminal 101. 12 illustrates an example in which only job printer information generated by the job printer generator 307 is output to a user in an application layer.

It will be described below in more detail.

For example, when a word program included in an application layer receives a print command for a predetermined file from a user, the application layer requests printer information from the kernel layer 401 or the shell layer 402. In this case, the shell controller 304 may receive the printer information request or intercept the printer information request transmitted from the application layer 402 to the kernel layer 401. The shell controller 304 controls the shell layer 402 such that printer information including the job printer driver generated by the job printer generator 307 is transmitted from the shell layer 402 to the application layer 403. Can be. Therefore, according to the second embodiment of the present invention, only the work printer information is displayed in the printer information output window of the word that is the application as illustrated in FIG.

According to the related art, as illustrated in FIG. 11, since a user of a client terminal can output a document related to a task using any printer among a plurality of printers, a security vulnerability exists.

However, according to the second embodiment of the present invention, as illustrated in FIG. 12, since a user can output only using a job printer that is managed separately for printing, security of data related to work can be enhanced. There is an advantage.

When the print control unit 308 receives a print command from the user of the client terminal 101, the print control unit 308 may generate a target image by converting the print target file into an image.

Here, it will be apparent to those skilled in the art in view of the technical spirit of the present invention that the print control unit 308 may further include information of a print target file in the process of generating the target image.

Here, it will be apparent to those skilled in the art in view of the technical idea of the present invention that the print control unit 308 may generate the target image by converting the print target file into a designated image format.

Here, in the process of specifying the file name of the target image by the print control unit 308, it is apparent to those skilled in the art in view of the technical spirit of the present invention that the target image file name can be designated to include the character string of the specified format.

Here, the information of the target file may be the information of the original file when edited, and may include one or more of edit date / time information, print command input date / time information, and user information of the client terminal.

In addition, the print controller 308 may output the authentication image received from the server 110 by using a designated printer among printers (hereinafter, referred to as “real printers”) substantially connected to the client terminal 101. .

The monitoring unit 306 according to the second embodiment of the present invention monitors a file in which a print command is issued to a real printer connected to the client terminal 101, and deletes a file to be printed if the file to be printed is not an authentication image, You can cancel the print command.

For example, when the shell control unit 304 controls the shell layer 402 to output the actual printer information to the client terminal 101 user in addition to the job printer, the client terminal 101 user uses a real printer to print a command. can do. In this case, the monitoring unit 306 may determine whether the print target file to which the print command is issued to the real printer is an authentication image, and delete the print target file or cancel the print command if the print target file is not an authentication image.

For example, although the shell control unit 304 controls the shell layer 402 so that the shell control unit 304 outputs only the job printer to the client terminal 101 user in the application layer 403, the client terminal 101 ) A print command for an arbitrary file may be input to an actual printer by a malicious attempt of a user. In this case, the monitoring unit 306 may determine whether the file issued with the print command to the actual printer is an authentication image, and if the file is not the authentication image, delete the file or cancel the print command.

Here, the monitoring unit 306 may determine whether the file to be printed is an authentication image, the image format of the file to be printed, the barcode included in the file to be printed, the presence or absence of a specified format included in the file name of the file to be printed, and the like. It can be judged by using.

The history unit 310 according to the second exemplary embodiment of the present invention includes target image information transmitted from the client terminal 101 to the server 110 in the backup area, date and time information for generating the target image, and temporary information for transmitting the target image. , At least one of information of the client terminal 101 and user information of the client terminal 101 may be stored.

Here, it will be apparent to those skilled in the art in view of the technical spirit of the present invention that the predetermined storage space set as the backup may be part of a storage unit provided in the client terminal 101 or a part of an external storage device connected to the client terminal 101. Do.

Here, the backup area set by the history unit 310 may be set not to be displayed to the user of the client terminal 101.

Here, the backup area set by the history unit 310 may be maintained even if the connection between the client terminal 101 and the server 110 is released.

In this case, the information stored in the backup area set by the history unit 310 may be variously designated as the information of the last three days or the last 100 information about the information.

Therefore, according to the embodiment of the present invention, there is an advantage in that it is easy to prove whether the target image is transmitted from the client terminal 101 to the server 110.

Each component described above is activated when a connection is made between the client terminal 101 and the server 100, and may be deactivated when the connection between the client terminal 101 and the server 100 is released. It is obvious to those skilled in the art in view of the spirit.

So far, the server 110 and the file management apparatus 100 according to the second embodiment of the present invention have been described with reference to FIGS. 9 to 12. The server 110 and the file management apparatus 100 according to the second embodiment of the present invention may be configured in various ways as described above. It will be apparent to those skilled in the art that one component may be implemented by a plurality of components and vice versa. In addition, the configuration of each component is to be understood as a functional unit, and components that perform the same similar function without regard to the name of each component should be understood to be similar components.

Therefore, in the following description of the file management method according to the second embodiment of the present invention, it is described that the server and the file management apparatus are the main functions.

Hereinafter, a description overlapping with the above-described parts with reference to FIGS. 9 through 12 may obscure the gist of the file management method according to the second embodiment of the present invention with reference to FIG. 13.

13 is a flowchart illustrating a file management method according to a second embodiment of the present invention.

In operation S1302 of FIG. 13, the user downloads a predetermined file from a storage space (for example, a service folder) of the server and performs the operation S720 of FIG. 7 viewed by the user, or edits or generates the predetermined file. Assuming that step S802 of is performed.

However, the foregoing premise is only a premise for understanding the present invention, and the steps illustrated in FIG. 13 may be performed at any step of outputting a predetermined file according to an embodiment of the present invention. It is apparent to those skilled in the art in view of the technical spirit of the invention.

Referring to FIG. 13, in operation S1302, the file management apparatus 100 may generate a job printer driver that is a virtual printer driver and output only job printer information including the job printer driver in the application layer to the user.

Subsequently, when the file management apparatus 100 receives a print command in step S1304, the print target file may be converted into a target image.

Here, in the process of generating the target image, the file management apparatus 100 separately transmits information including one or more of the information of the original file, the editing date and time, the print command input date and time, and the user information of the client terminal to the server, or It has been described above that the target image may be generated or included with one information.

Here, it has been described above that the file management apparatus 100 may generate the target image by adding the designated format to the name of the file in the process of generating the target image or converting the file to the designated image format.

In operation S1306, the file management apparatus 100 may transmit the target image to the server 110, and in operation S1308, the server 110 may generate an authentication image including additional information specified in the target image. Subsequently, in operation S1310, the server 110 may store all or part of an authentication image or a target image (not shown) for each user client in a storage area for each client user.

Here, in step S1306, the target image information, the date and time of generating the target image, and the date and time information of transmitting the target image to the backup area before or after the file management apparatus 100 transmits the target image to the server 110. As described above, one or more of the information of the client terminal 101 and the user information of the client terminal 101 may be stored.

Subsequently, in step S1312, the server 110 may control the target printer such that the target printer designated for each client terminal 101 user prints an authentication image.

Here, a plurality of target printers may be designated for each client terminal user, and when a printing error occurs in the priority target printer, the server 110 may output an authentication image by controlling the target printer of the designated subordinate priority. It was.

In addition, it has been described above that the server 110 may transmit a message to the client terminal 101 inquiring whether to use the subordinate target printer.

In addition, when the file management apparatus 100 receives a print command from a printer other than the job printer in step S1304, the file management apparatus 100 may cancel the print command or delete a file that is the target of printing.

Up to now, the file management method according to the second embodiment of the present invention has been described with reference to FIG. 13.

So far, the file management apparatus and the file management method according to the first embodiment of the present invention have been described with reference to FIGS. 2 to 8, and the file management apparatus according to the second embodiment of the present invention with reference to FIGS. 9 to 13. And file management methods were described.

In order to facilitate understanding and explanation of the present invention, the first and second embodiments of the present invention have been separately described. However, it will be apparent to those skilled in the art in view of the technical spirit of the present invention that it may be performed in parallel with the first and second embodiments of the present invention.

File management method method according to an embodiment of the present invention is implemented in the form of program instructions that can be executed by various computer means may be recorded on a computer readable medium. Computer-readable media may include, alone or in combination with the program instructions, data files, data structures, and the like.

The program instructions recorded on the computer readable medium may be those specially designed and constructed for the present invention, or may be known and available to those skilled in the computer software arts. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tape, optical media such as CD-ROMs, DVDs, and magnetic disks, such as floppy disks. Hardware devices specially configured to store and execute program instructions such as magneto-optical media and ROM, RAM, flash memory and the like. In addition, the above-described medium may be a transmission medium such as an optical or metal wire, a waveguide, or the like including a carrier wave for transmitting a signal specifying a program command, a data structure, and the like. Examples of program instructions include not only machine code generated by a compiler, but also high-level language code that can be executed by a computer using an interpreter or the like.

The hardware device described above may be configured to operate as one or more software modules to perform the operations of the present invention, and vice versa.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. It will be understood that the invention may be varied and varied without departing from the scope of the invention.

1 is a diagram illustrating a structure in which a server to which a file management apparatus according to an embodiment of the present invention is applied and a client terminal are connected through a network.

2 is a block diagram illustrating a configuration of a server 110 according to the first embodiment of the present invention.

3 is a block diagram illustrating a configuration of a file management apparatus 101 according to a first embodiment of the present invention.

4 is a view for explaining the structure of an operating system (OS).

5 is a diagram illustrating an example of how work area information and storage space information of a server are inquired according to an embodiment of the present invention.

FIG. 6 is a diagram illustrating an example in which only a service folder of a workspace and a storage space of a server is output in designating a storage location of a word that is an application;

7 is a flowchart illustrating a method of managing a file by the file management apparatus 100 according to the first embodiment of the present invention.

8 is a flowchart illustrating a method of managing a file by the file management apparatus 100 according to the first embodiment of the present invention.

9 and 10 are block diagrams illustrating the configuration of the server 110 and the file management apparatus 100 according to the second embodiment of the present invention.

11 and 12 are views for explaining the function of the shell control unit 304 according to the second embodiment of the present invention.

13 is a flowchart illustrating a file management method according to a second embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

110: server 111: transceiver

112: storage unit 113: authentication unit

114: converter 115: printer control

100: file management device 101: client terminal

301: transceiver unit 302: storage unit

303: work area setting unit 304: shell control unit

305: File management unit 306: Job printer generation unit

306: print control unit

Claims (14)

In the server connected to the client terminal, Transmitting and receiving unit for transmitting and receiving data with the client terminal; An authentication unit for authenticating a client terminal user requesting to connect to the server; A conversion unit for generating an authentication image to which the specified information is added to the target image received from the client terminal when the authentication unit authenticates the client terminal user, wherein the target image is an image to be printed; And And a printer controller including printer driver information about the target printer designated for each client terminal user, and controlling the target printer such that the authentication image is output from the target printer designated for each client terminal user when the authentication unit authenticates. server. The method of claim 1, And the authentication unit stores all or part of any one of the authentication image and the target image in a storage unit for each authenticated client terminal user. The method according to claim 1 or 2, If the target printer is a plurality, and a printing error occurs in the first target printer, And the printer controller controls the second target printer so that the authentication image is output from the second target printer designated as a lower priority, and notifies the client terminal that the second target printer is printed. In a file management system comprising a file management device for managing files of a client terminal and a server connected to the file management device, The server is Transmitting and receiving unit for transmitting and receiving data with the client terminal; An authentication unit for authenticating the client terminal or the client terminal user; A conversion unit for generating an authentication image in which the specified information is added to the target image received from the client terminal when the authentication unit authenticates the client terminal user, wherein the target image is an image of a print target file; And Includes printer driver information for the target printer designated by the client terminal user, and if the authentication unit is authenticated, and includes a printer control unit for controlling the target printer to output the authentication image from the target printer designated for each client terminal user; , The file management device A job printer generation unit generating a job printer which is a virtual printer; And When receiving a printer information request of the client terminal from an application layer or intercepting a printer information request transmitted from the application layer to a kernel layer, the printer information including the information of the job printer is transmitted to the application layer. File management system comprising a shell control unit for controlling the shell layer to be. 5. The method of claim 4, And the shell control unit controls the shell layer such that only the work printer driver is output to the client terminal user. 5. The method of claim 4, The file management device And a monitoring unit configured to cancel a print command or to delete a target file of the print command when receiving a print command for another printer other than the job printer. In the method of managing a file of the client terminal in a server connected to the client terminal, (a) authenticating a client terminal user requesting to connect to the server; (b) receiving a target image and a print request which are images of a print target file from the client terminal; (c) generating an authentication image to which the specified information is added to the target image; And (d) controlling the target printer to output the authentication image in a target printer which is a printer designated for each client terminal user. The method of claim 7, wherein After step (c) And storing all or part of any one of the authentication image and the target image in a storage space of the server for each authenticated client terminal user. In the file management system including a file management device for managing a file of the client terminal and a server connected to the file management device, the method for managing the file of the client terminal, (a) authenticating, at the server, a client terminal user requesting to connect to the server; (b) generating, at the file management apparatus, a job printer which is a virtual printer and controlling a shell layer of the client terminal so that the job printer information is displayed to the client terminal user; (c) in the file management apparatus, when a print command for the job printer is input, converting the print command target file into an image to generate a target image; (d) generating, at the server, an authentication image added with information designated to the target image according to a print request received from the file management apparatus and a target image; (e) controlling, at the server, the target printer to output the authentication image from a target printer which is a printer designated for each client terminal user. 10. The method of claim 9, After step (d), And storing all or part of any one of the authentication image and the target image in the server storage space for each authenticated client terminal user in the server. 11. The method according to claim 9 or 10, After step (b), If the print command is input to a printer other than the job printer by the file management device, canceling the print command or deleting a target file of the print command. 11. The method according to claim 9 or 10, In the step (b), only the job printer information is displayed to the client terminal user. In a recording medium on which a program of instructions that can be executed by the server is implemented to perform a method of managing a file of the client terminal in a server connected to the client terminal, , (a) authenticating a client terminal user requesting to connect to the server; (b) receiving a target image and a print request which are images of a print target file from the client terminal; (c) generating an authentication image to which the specified information is added to the target image; And (d) a recording medium having recorded thereon a program for controlling the target printer to output the authentication image from a target printer which is a printer designated for each client terminal user. In order to perform a method of managing a file of a client terminal, a program of instructions that can be executed by a file management system including a file management apparatus for managing a file of the client terminal and a server connected to the file management apparatus is implemented. In the recording medium recording a program that can be read by the file management system, (a) authenticating, at the server, a client terminal user requesting to connect to the server; (b) generating, at the file management apparatus, a job printer which is a virtual printer and controlling a shell layer of the client terminal so that the job printer information is displayed to the client terminal user; (c) in the file management apparatus, when a print command for the job printer is input, converting the print command target file into an image to generate a target image; (d) generating, at the server, an authentication image added with information designated to the target image according to a print request received from the file management apparatus and a target image; (e) a recording medium having a program recorded in the server, controlling the target printer to output the authentication image from a target printer which is a printer designated for each client terminal user.

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