File management system and apparatus, and computer readable recording medium storing program
By having a file data storage section that stores file data of a file; a management information storage section that stores management information identifying the file, the management information being related to the file data; a control information storage section that stores control information on a file to be blocked on which a predefined specified processing is to be executed; a management information retrieval section that retrieves the management information stored in the management information storage section; a control information retrieval section that retrieves the control information stored in the control information storage section; an execution section that, when the management information retrieved by the management information retrieval section corresponds to the control information retrieved by the control information retrieval section, executes the predefined processing on the file data related to that management information, proliferation of an important file distribution of which should be restricted over a network can be restricted.
1. A file management system comprising:
a file data storage section that stores file data of a file;
a management information storage section that stores management information identifying the file, the management information being related to the file data;
a control information storage section that stores control information on a file to be blocked on which a predefined specified processing is to be executed;
a management information retrieval section that retrieves the management information stored in the management information storage section;
a control information retrieval section that retrieves the control information stored in the control information storage section; and
an execution section that, when the management information retrieved by the management information retrieval section corresponds to the control information retrieved by the control information retrieval section, executes the predefined processing on the file data related to that management information, wherein
the management information retrieval section retrieves, when the control information is added in the control information storage section, all of the management information stored in the management information storage section, the control information retrieval section retrieves, when the control information is added in the control information storage section, the added control information, and
the execution section sequentially compares between the management information retrieved by the management information retrieval section and the control information retrieved by the control information retrieval section; and
a processor to provide at least one of the management information retrieval section, the control information retrieval section and the execution section.
2. The file management system according to claim 1 , wherein the execution section executes, as the predefined processing, one of deletion processing that deletes the file data from the file data storage section, read-disabling processing that disables reading of the file data, report processing that reports to a sender of the file data, sender deletion processing that deletes the file data in the sender, and sender delayed deletion processing that temporarily accumulates information for identifying the file data in the sender into a log and deletes the file data in the sender at a time.
3. The file management system according to claim 1 , wherein
the management information retrieval section retrieves, when the file data stored in the file data storage section is rewritten, the management information related to the rewritten file data,
the control information retrieval section retrieves, when the file data stored in the file data storage section is rewritten, all of the control information stored in the control information storage section, and
the execution section sequentially compares between the management information retrieved by the management information retrieval section and the control information retrieved by the control information retrieval section.
4. The file management system according to claim 1 , wherein
the management information retrieval section retrieves, when the file data added in the file data storage section, the management information related to the added file data,
the control information retrieval section retrieves, when the file data is added in the file data storage section, all of the control information stored in the control information storage section, and
the execution section sequentially compares between the management information retrieved by the management information retrieval section and the control information retrieved by the control information retrieval section.
5. The file management system according to claim 1 , wherein
the file data storage section stores complex file data having a plurality of the file data, and
the execution section executes, when the management information retrieved by the management information retrieval section corresponds to the control information retrieved by the control information retrieval section, the predefined processing on the file data related to that management information.
6. The file management system according to claim 1 , wherein
the management information has management summary information indicating a summary of the file data, and
the control information has control summary information indicating a summary of file data of the file to be blocked.
7. The file management system according to claim 6 , wherein
the management information has a plurality of pieces of the management summary information when the file data is rewritten one or more times, each piece corresponding to each generation of the rewritten file data,
the control information has a plurality pieces of the control summary information when file data of the file to be blocked is rewritten one or more times, each piece corresponding to each generation of the rewritten file data of the file to be blocked, and
the execution section executes, when one of the plurality of pieces of the management summary information retrieved by the management information retrieval section matches or substantially matches with one of the plurality of pieces of the control summary information retrieved by the control information retrieval section, the predefined processing on the file data related to the piece of management summary information.
8. A file management apparatus comprising:
a file data storage section that stores file data of a file; a management information storage section that stores management information identifying the file, the management information being related to the file data;
a management information retrieval section that retrieves the management information stored in the management information storage section;
a control information retrieval section that retrieves control information on a file to be blocked on which a predefined specified processing is to be executed;
an execution section that, when the management information retrieved by the management information retrieval section corresponds to the control information retrieved by the control information retrieval section, executes the predefined processing on the file data related to that management information, wherein
the management information retrieval section retrieves, when the control information is added in a control information storage section that stores control information, all of the management information stored in the management information storage section,
the control information retrieval section retrieves, when the control information is added in the control information storage section, the added control information, and the execution section sequentially compares between the management information retrieved by the management information retrieval section and the control information retrieved by the control information retrieval section; and
a processor to provide at least one of the management information retrieval section, the control information retrieval section and the execution section.
9. The file management apparatus according to claim 8 , wherein the execution section executes, as the predefined processing, one of deletion processing that deletes the file data from the file data storage section, read-disabling processing that disables reading of the file data, report processing that reports to a sender of the file data, sender deletion processing that deletes the file data in the sender, and sender delayed deletion processing that temporarily accumulates information for identifying the file data in the sender into a log and deletes the file data in the sender at a time.
10. The file management apparatus according to claim 8 , wherein
the management information has management summary information indicating a summary of the file data, and
the control information has control summary information indicating a summary of file data of the file to be blocked.
11. The file management apparatus according to claim 10 , wherein
the management information has a plurality of pieces of the management summary information when the file data is rewritten one or more times, each piece corresponding to each generation of the rewritten file data,
the control information has a plurality pieces of the control summary information when file data of the file to be blocked is rewritten one or more times, each piece corresponding to each generation of the rewritten file data of the file to be blocked, and
the execution section executes, when one of the plurality of pieces of the management summary information retrieved by the management information retrieval section matches or substantially matches with one of the plurality of pieces of the control summary information retrieved by the control information retrieval section, the predefined processing on the file data related to the piece of management summary information.
12. A computer readable storage recording medium having a file management program recorded thereon that makes a computer comprising a file data storage section that stores file data of a file, to execute a function to manage the file, the file management program making the computer to function as:
a management information retrieval section that retrieves management information for identifying the file from a management information section;
a control information retrieval section that retrieves control information on a file to be blocked on which a predefined specified processing is to be executed;
an execution section that, when the management information retrieved by the management information retrieval section corresponds to the control information retrieved by the control information retrieval section, executes the predefined processing on the file data related to that management information,
wherein the management information retrieval section retrieves, when the control information is added in a control information storage section that stores control information, all of the management information stored in the management information storage section,
the execution section sequentially compares between the management information retrieved by the management information retrieval section and the control information retrieved by the control information retrieval section.
13. The computer readable recording medium according to claim 12 having a file management program recorded thereon, wherein the file management program makes the computer to function such that the execution section executes, as the predefined processing, one of deletion processing that deletes the file data from the file data storage section, read-disabling processing that disables reading of the file data, report processing that reports to a sender of the file data, sender deletion processing that deletes the file data in the sender, and sender delayed deletion processing that temporarily accumulates information for identifying the file data in the sender into a log and deletes the file data in the sender at a time.
14. The computer readable recording medium according to claim 12 having a file management program recorded thereon, wherein
the management information has management summary information indicating a summary of the file data, and
the control information has control summary information indicating a summary of file data of the file to be blocked.
15. The computer readable storage medium according to claim 14 having a file management program recorded thereon, the program makes a computer to function such that
the management information has a plurality of pieces of the management summary information when the file data is rewritten one or more times, each piece corresponding to each generation of the rewritten file data,
the control information has a plurality pieces of the control summary information when file data of the file to be blocked is rewritten one or more times, each piece corresponding to each generation of the rewritten file data of the file to be blocked, and
the execution section executes, when one of the plurality of pieces of the management summary information retrieved by the management information retrieval section matches or substantially matches with one of the plurality of pieces of the control summary information retrieved by the control information retrieval section, the predefined processing on the file data related to the piece of management summary information.