CN111522780B - A method and terminal for recording file creator information - Google Patents

Abstract

Embodiments of the present application provide a method for recording file creator information, which is used to write the creator information corresponding to the target file in the metadata of the target file during the process of creating the target file, so as to obtain the target file when needed. When the creator information of the target file is obtained, the creator information of the target file can be easily read from the metadata of the target file. The method of the embodiment of the present application includes: the terminal obtains a create file instruction; the terminal creates a target file according to the create file instruction; the terminal determines the creator information of the target file, and the creator information of the target file includes the creator information of the target file. The terminal writes the identification information of the application of the target file or the identification information of the process; the terminal writes the creator information of the target file in the metadata corresponding to the target file.

Description

A method and terminal for recording file creator information

Technical field

The present application relates to the field of file processing, and in particular, to a method of recording file creator information and a terminal for recording file creator information.

Background technique

Both Unix-like file systems and windows use identity tags (user identification, uid) and group tags (group identification, gid) to mark files and permission restrictions. The Android system is based on the Linux system and is also a Unix-like file system, so it also uses the uid and gid mechanisms. However, the uid and gid in the Android system are different from those in the Linux system. In Android, uid is not used to identify different users. Instead, uid and gid are used to identify different applications, and the uid and gid mechanisms are used as lightweight sandboxes. box technology for isolation.

Based on the mechanism of uid and gid in the Android system, the Android system can distinguish the creators of different files in the terminal through uid and gid, that is, distinguish the applications corresponding to different files. In addition, you can also first obtain the corresponding relationship between different applications and the file paths they create through manual analysis, and then compare the file path of the file with the corresponding relationship to infer the creator of the file.

The data of the Android system can be divided into internal data and external data. Internal data is the data in the application sandbox. Files in different applications have different uid or gid. You can use uid and gid to determine the creator of different files. External data, such as data stored in a secure digital memory card (sdcard), is data shared between different applications. It shares uid and gid and can only use file paths. Using the file path to determine the creator of the file is not an accurate and convenient way.

Contents of the invention

Embodiments of the present application provide a method for recording file creator information, which is used to write the creator information corresponding to the target file in the metadata of the target file during the process of creating the target file, so as to obtain the target file when needed. When the creator information of the target file is obtained, the creator information of the target file can be read directly from the metadata of the target file.

In view of this, the first aspect of the embodiment of the present application provides a method for recording file creator information, which may include:

When the terminal creates a target file, the terminal obtains the create file instruction and creates the target file according to the create file instruction. The target file can be a newly created file or a file saved after the terminal receives a file sent by another device. When the terminal creates the target file, it also obtains the creator information of the target file. The creator information of the target file may include the identification information of the application that created the target file or the identification information of the process. That is, the target can be determined through the creator information. Which application created the file. Afterwards, the terminal writes the determined creator information in the metadata corresponding to the target file. In the embodiment of the present application, a method of recording target file creator information when creating a target file is provided. Among them, the creator information of the created target file is recorded in the metadata corresponding to the target file. According to the characteristics of the metadata, the terminal can conveniently and accurately read the corresponding creator information from the metadata of the target file.

In a possible design, the terminal obtains the create file instruction, which may include: when the terminal runs the first process, the terminal obtains the create file instruction generated by the first process; the terminal determines the creator of the target file The information may include: the terminal determines that the creator information of the target file is the identification information of the application corresponding to the first process or the identification information of the first process. In the embodiment of the present application, when starting the first process, the terminal records the identification information of the first process or the identification information of the application corresponding to the first process. After receiving the create file instruction generated by the first process, the terminal The file instruction creates a target file, and writes the previously recorded identification information of the first process or the identification information of the application corresponding to the first process into the metadata of the target file as the creator information of the target file, thereby realizing the creation The record of the creator information of the target file during the target file process.

In a possible design, before the terminal obtains the file creation instruction, the method may also include: when the terminal runs a first process, the terminal receives the target file sent by other terminals or network servers through the first process. ; The terminal obtains a file creation instruction, specifically: the terminal obtains a save instruction of the first process, and the save instruction is used to instruct saving of the target file; before the terminal determines the creator information of the target file, this method can also The method includes: the terminal determines whether the application corresponding to the first process is a default application; the terminal determines the creator information of the target file, which may include: when determining that the application corresponding to the first process is not a default application, The terminal determines that the creator information of the target file is the identification information of the application corresponding to the first process or the identification information of the first process; when judging that the application corresponding to the first process is a default application, the terminal Do not set the creator information in the target file's metadata. In the embodiment of this application, another situation of creating a file is explained: when the terminal receives a target file sent by another terminal or a network server through the first process, the terminal determines whether the application corresponding to the first process is a default application. If it is not a default application, when saving the target file, the terminal determines that the creator information of the target file is the identification information of the first process or the identification information of the application corresponding to the first process, and writes it into the metadata of the target file. ; If it is a default application, the creator information of the target file will not be set. By setting preset applications in the terminal system in advance, it is possible to avoid unreasonable modification of file creator information in some scenarios, such as when restoring backup files.

In a possible design, before the terminal obtains the file creation instruction, the method may also include: when the terminal runs a first process, the terminal receives the target file sent by other terminals or network servers through the first process. ; The terminal obtains a file creation instruction, specifically: the terminal obtains a save instruction of the first process, and the save instruction is used to instruct saving of the target file; before the terminal determines the creator information of the target file, this method can also The method includes: the terminal determines whether the application corresponding to the first process is a default application; the terminal determines the creator information of the target file, which may include: when determining that the application corresponding to the first process is not a default application, The terminal determines that the creator information of the target file is the identification information of the application corresponding to the first process or the identification information of the first process; when judging that the application corresponding to the first process is a default application, the terminal Obtain rule table information. The rule table information is received from the other terminal or the network server, or is stored in the terminal. The rule table information is used to indicate the corresponding relationship between the identification information of different files and different creator information. The file The identification information is used for the terminal to uniquely determine the file corresponding to the identification information; the terminal determines the creator information of the target file based on the identification information of the target file and the rule table information. In the embodiment of this application, another method of recording the creator information during the process of saving the target file when the terminal receives the target file sent by other terminals or network servers is described.

In a possible design, the method may also include: the terminal determines the file path of the target file and the creator information of the target file; the terminal generates the file path of the target file and the creator information of the target file. The corresponding relationship is stored in the file path rule. The file path rule is used to indicate the corresponding relationship between different creator information and different file paths. In the embodiment of this application, after the terminal creates the target file and records the creator information of the target file, the terminal can generate a correspondence between the creator information of the target file and the file path of the target file, and save it in the file path rule. The file path rule indicates the corresponding relationship between different applications and the paths of files created by them. The file path rule is saved locally on the terminal or on the network in the form of a file, and is updated as the application is updated. That is, after the terminal generates the target file and records the creator information of the target file, it can automatically generate the file path rule. When the user needs to query, the file corresponding to the file path rule can be directly searched locally without manual analysis. Saves personnel workload.

In a possible design, the method may also include: the terminal obtains a configuration instruction, the configuration instruction is used to instruct the terminal to set the creator information for the file to be configured; the terminal determines the file to be configured according to the configuration instruction, the The creator information of the file to be configured is not recorded in the metadata corresponding to the file to be configured; the terminal obtains the file path rule according to the configuration instruction; the terminal determines the file path to be configured based on the file path of the file to be configured and the file path rule The creator information of the file; the terminal writes the creator information of the file to be configured in the metadata corresponding to the file to be configured. In the embodiment of this application, after the terminal generates the file path rule, the creator information corresponding to the file to be configured can be determined based on the file path rule and the file path of the file to be configured. For example, under a certain folder, there are a first file and a second file, where the first creator information is recorded in the metadata of the first file, and the creator information is not recorded in the metadata of the second file. Then in the file path rule, the folder is indicated as the file path corresponding to the first creator information. Therefore, the terminal can determine that the creator information of the second file is also the first creator information according to the file path rule, and write it in the metadata of the second file, thus realizing the creation of the second file, that is, the file to be configured. record of user information.

In a possible design, the method may include: when the terminal runs a second process, the terminal obtains a target instruction generated by the second process with the target file as an operation object; the terminal creates the target file according to the target instruction. The associated file of the target file. The associated file may include a copy file, a modified file, an encrypted or decrypted file, or a decompressed file corresponding to the target file; if the target instruction is a preset instruction, the terminal determines the creator information of the associated file. is the creator information of the target file, and writes the creator information of the associated file in the metadata of the associated file; if the target command is not a preset command, the terminal determines that the creator information of the associated file is The identification information of the application corresponding to the second process or the identification information of the second process, and the creator information of the associated file is written in the metadata of the associated file. In the embodiment of the present application, after creating a target file, the terminal can receive a target instruction generated by the second process and taking the target file as the operation object. The target instruction is, for example, a file merging instruction, a file decomposition instruction, an encryption, decryption or pasting instruction, etc. Afterwards, the terminal creates an associated file of the target file according to the target instruction. The associated file may include a copy file, a modified file, an encrypted or decrypted file, or a decompressed file corresponding to the target file. When creating an associated file, the terminal also determines whether the target command is a preset command. If it is a preset command, it determines that the creator information of the associated file is still the creator information of the target file. Otherwise, it determines the creation of the associated file. The other information is the identification information of the second process or the identification information of the application corresponding to the second process. It is a common situation in actual scenarios to operate a target file to generate a corresponding associated file. The embodiment of this application explains the record of the creator information of the associated file, which improves the practicality of the solution.

In a possible design, the preset instructions may include paste instructions, rename instructions, encryption instructions or decryption instructions. In the embodiment of the present application, the case of a preset instruction is described, where the preset instruction can be set by the user in advance.

In a possible design, the identification information of the application or the identification information of the process may include application name information, process name information, or package name information of the application package. In the embodiment of this application, the identification information of the application and the identification information of the process in the creator information are explained, which may include application name information, process name information or package name information of the application package. It should be noted that the creator information can also be defined by the user or the terminal manufacturer. That is, the creator information can be any identification information that can uniquely identify the application that created the target file.

In a possible design, the method may also include: the terminal obtains a modification instruction, the modification instruction is used to instruct the terminal to modify the creator information of the target file, and the modification instruction carries the target creator information; the terminal obtains the modification instruction according to the The modification instruction modifies the creator information of the target file to the target creator information. In the embodiment of this application, the modification of the creator information of the target file is explained. The terminal can generate a modification instruction after responding to user operations or receiving instructions from other applications. The modification instruction carries the target creator information set by the user for the target file. Therefore, after obtaining the modification instruction, the terminal can modify the creator information in the target file metadata to the target creator information.

In a possible design, the method may further include: the terminal obtains a display instruction, the display instruction is used to instruct the terminal to display the creator information of the target file; the terminal displays the creator of the target file according to the display instruction. information. In this embodiment of the present application, after receiving the display instruction, the terminal can display the creator information of the target file according to the display instruction to facilitate user viewing.

In a possible design, the method may also include: the terminal obtains a file classification instruction, the file classification instruction is used to instruct the terminal to display multiple files according to the creator of the file; the terminal obtains the file classification instruction according to the file classification instruction. The creator information of multiple files is displayed according to the creator information of the multiple files. In the embodiment of the present application, after the terminal generates multiple files and records the creator information of the multiple files, the terminal can obtain the creator information of the multiple files according to the file classification instruction, and display the creator information according to the categories of the multiple files. The multiple files.

In a possible design, the method may also include: the terminal obtains a deletion instruction, the deletion instruction carries the target creator information, and is used to instruct the terminal to delete the file to be deleted, and the creator information of the file to be deleted is the target A file with creator information; the terminal searches for the file to be deleted according to the deletion instruction; the terminal deletes the target file to be deleted according to the deletion instruction. In the embodiment of this application, a method for deleting files is provided. When the user needs to delete some files to be deleted, the terminal generates a deletion instruction in response to the user's operation, where the deletion instruction may carry the creator information of the files to be deleted. Therefore, the terminal can determine the file to be deleted based on the creator information and perform the deletion operation.

The second aspect of the embodiment of the present application provides a terminal for recording file creator information, which may include:

Acquisition unit, used to obtain file creation instructions;

Creation unit, used to create the target file according to the create file instruction;

a determining unit, configured to determine the creator information of the target file. The creator information of the target file may include identification information of the application that created the target file or identification information of the process;

The writing unit is used to write the creator information of the target file in the metadata corresponding to the target file.

In one possible design,

The determining unit is also used to determine the first process running on the terminal, and the first process generates the file creation instruction;

The determining unit is specifically configured to determine that the creator information of the target file is the identification information of the application corresponding to the first process or the identification information of the first process.

In one possible design,

The acquisition unit is also used to receive the target file sent by other terminals or network servers through the first process;

The acquisition unit is specifically used to obtain the save instruction of the first process, and the save instruction is used to instruct to save the target file;

The terminal can also include:

A judging unit, used to judge whether the application corresponding to the first process is a default application;

The determining unit is specifically configured to determine that the creator information of the target file is the identification information of the application corresponding to the first process or the identification information of the first process when it is determined that the application corresponding to the first process is not a default application. Identification information; when it is determined that the application corresponding to the first process is a default application, the creator information in the metadata of the target file is not set.

In one possible design,

The acquisition unit is also used to receive the target file sent by other terminals or network servers through the first process; when it is determined that the application corresponding to the first process is a default application, obtain the rule table information. The rule table The information is received from the other terminal or the network server, or is stored in the terminal. The rule table information is used to indicate the corresponding relationship between the identification information of different files and different creator information. The identification information of the file is used for the terminal. Uniquely determine the file corresponding to the identification information;

The acquisition unit is specifically used to obtain the save instruction of the first process, and the save instruction is used to instruct to save the target file;

The terminal can also include:

A judging unit, used to judge whether the application corresponding to the first process is a default application;

The determining unit is specifically configured to determine that the creator information of the target file is the identification information of the application corresponding to the first process or the identification information of the first process when it is determined that the application corresponding to the first process is not a default application. Identification information; when it is determined that the application corresponding to the first process is a default application, the creator information of the target file is determined based on the identification information of the target file and the rule table information.

In one possible design,

The determination unit is also used to determine the file path of the target file and the creator information of the target file;

The creation unit is also used to generate the corresponding relationship between the file path of the target file and the creator information of the target file, and save it in the file path rule. The file path rule is used to indicate different creator information and different files. Correspondence of paths.

In one possible design,

The acquisition unit is also used to obtain a configuration instruction, which is used to instruct to set the creator information for the file to be configured; obtain the file path rule;

The determination unit is also used to determine the file to be configured according to the configuration instruction. The metadata corresponding to the file to be configured does not record the creator information of the file to be configured; according to the file path of the file to be configured and the file path rule Determine the creator information of the file to be configured;

The writing unit is also used to write the creator information of the file to be configured in the metadata corresponding to the file to be configured.

In one possible design,

The acquisition unit is also used to acquire the target instruction generated by the second process with the target file as the operation object when running the second process;

The creation unit is also used to create an associated file of the target file according to the target instruction. The associated file may include a copy file, a modified file, an encrypted or decrypted file, or a decompressed file corresponding to the target file;

The writing unit is also configured to, if the target instruction is a preset instruction, determine the creator information of the associated file as the creator information of the target file, and write the associated file's metadata in the metadata of the associated file. Creator information; if the target instruction is not a default instruction, determine the creator information of the associated file as the identification information of the application corresponding to the second process or the identification information of the second process, and add it to the element of the associated file. The creator information of the associated file is written in the data.

In a possible design, the preset instructions may include paste instructions, rename instructions, encryption instructions or decryption instructions.

In a possible design, the identification information of the application or the identification information of the process may include application name information, process name information, or package name information of the application package.

In one possible design,

The acquisition unit is also used to acquire a modification instruction. The modification instruction is used to instruct the terminal to modify the creator information of the target file. The modification instruction carries the target creator information;

The terminal can also include:

The modification unit is used to modify the creator information of the target file to the target creator information according to the modification instruction.

In one possible design, the terminal could also include:

The acquisition unit is also used to acquire a display instruction, which is used to instruct display of the creator information of the target file;

The first display unit is used to display the creator information of the target file according to the display instruction.

In one possible design, the terminal could also include:

The acquisition unit is also used to obtain a file classification instruction, which is used to instruct the terminal to display multiple files according to the creator of the file;

The second display unit is configured to obtain the creator information of the multiple files according to the file classification instruction, and display the multiple files according to the creator information of the multiple files.

In one possible design, the terminal could also include:

The acquisition unit is also used to obtain a deletion instruction. The deletion instruction carries target creator information. The deletion instruction is used to instruct deletion of a file to be deleted. The file to be deleted is a file whose creator information is the target creator information;

A search unit is used to search for the file to be deleted according to the deletion instruction;

The deletion unit is used to delete the target file to be deleted according to the deletion instruction.

The third aspect of the embodiment of the present application also provides a terminal for recording file creator information, which may include:

A processor, a memory, and a transceiver; the transceiver is used to communicate with a device outside the terminal; the memory is used to store instruction codes; when the processor executes the instruction codes, the terminal is caused to execute The method described in the first aspect and any optional method in the embodiments of this application.

The fourth aspect of the embodiment of the present application also provides a computer storage medium, the medium stores instructions, and when the instructions are run on the computer, the computer executes as described in the first aspect and any optional method. Methods.

The fifth aspect of the embodiment of the present application also provides a computer program product containing instructions, which when the instructions are run on a computer, cause the computer to execute the method described in the first aspect and any optional manner.

It can be seen from the above technical solutions that the embodiments of the present application have the following advantages:

After receiving the file creation instruction, the terminal creates the target file according to the file creation instruction. During the process of creating the target file, the creator information is pre-written in the metadata corresponding to the target file. Later, when the creator information of the target file needs to be obtained, the target can be read directly from the metadata of the target file. The creator information of the file. Based on the characteristics of metadata, the creator information of the file can be read conveniently and accurately.

Description of the drawings

Figure 1 is a schematic diagram of an embodiment of recording file creator information in an embodiment of the present application;

Figure 2 is a schematic diagram of another embodiment of recording file creator information in the embodiment of the present application;

Figure 3 is a schematic diagram of another embodiment of recording file creator information in the embodiment of the present application;

Figure 4 is a schematic diagram of another embodiment of recording file creator information in the embodiment of the present application;

Figure 5 is a schematic diagram of another embodiment of recording file creator information in the embodiment of the present application;

Figure 6 is a schematic diagram of another embodiment of recording file creator information in the embodiment of the present application;

Figure 7 is a schematic diagram of another embodiment of recording file creator information in the embodiment of the present application;

Figure 8 is a schematic diagram of another embodiment of recording file creator information in the embodiment of the present application;

Figure 9A is a schematic diagram of a terminal in an embodiment of the present application;

Figure 9B is a schematic diagram of another embodiment of the terminal in the embodiment of the present application;

Figure 9C is a schematic diagram of another embodiment of the terminal in the embodiment of the present application;

Figure 9D is a schematic diagram of another embodiment of the terminal in the embodiment of the present application;

Figure 9E is a schematic diagram of another embodiment of the terminal in the embodiment of the present application;

Figure 9F is a schematic diagram of another embodiment of the terminal in the embodiment of the present application;

Figure 10 is a schematic diagram of another embodiment of the terminal in the embodiment of the present application.

Detailed ways

A method and terminal for recording file creator information provided by embodiments of the present application will be described in detail below with reference to the accompanying drawings.

The embodiments of the present application can be applied to Unix-like file systems and windows systems, such as but not limited to Android systems. This embodiment and subsequent embodiments will take the Android system as an example for description.

When users use Android devices, as a large number of applications are run, a large number of files are also created in the storage space. The applications that create these files are the creators of the files. By determining the creator information of the file, the file can be processed and analyzed. For example, when uninstalling software, the corresponding file needs to be deleted based on the file's creator information. If the creator of some files cannot be determined, the files will not be deleted when the corresponding software is uninstalled, and will become uninstallation residual files after the software is uninstalled, occupying storage space. In addition, you can also determine the creator information of the file and then display the files according to the application classification.

Currently, the Android system can distinguish the creator of a file through uid, gid, or the file path of the application. When using a file path to distinguish the creator of a file, manual participation is first required: manual reverse analysis of the code that creates the file, or dynamic debugging and test analysis to obtain the application's file path rules. File path rules refer to the correspondence between applications and file paths. Afterwards, the Android device determines the creator of the file by comparing the file path rules with the file path.

However, the method of distinguishing file creators through file paths is not an accurate and convenient method because it requires manual participation, and there is the possibility of omissions and errors: file path rules are obtained through manual analysis, and in many cases, Under the circumstances, it is inevitable that there will be omissions and errors in identifying file path rules; when the application is updated, the file path rules of the application may also be updated, causing some files generated before the application update to be unable to use the updated file path rules to determine the files. The creator of.

Metadata, also known as intermediary data and relay data, is data that describes data, mainly information describing data attributes, and is used to support one or more functions such as indicating storage location, historical data, resource search, file recording, etc. Metadata can be queried through the interface provided by the file system, and has a unique corresponding relationship with the data it describes.

Based on this, embodiments of the present application provide a method for recording file creator information, which is used to write the creator information corresponding to the target file in the metadata of the target file during the process of creating the target file, so that when When you need to obtain the creator information of the target file, you can directly read the creator information of the target file from the metadata of the target file.

The creator information of the target file includes identification information of the application that created the target file or identification information of the process that created the target file, such as application name information, process name information, or package name information of the application package.

In addition, it should be noted that the process of creating a target file can be a process of directly creating the file, or a process of saving the file after the terminal receives the target file sent by other devices, which will be described separately below.

Referring specifically to Figure 1 below, Figure 1 is a schematic diagram of a method for recording file creator information in an embodiment of the present application, which may include:

101. When the terminal starts the first process, the terminal records the process name information of the first process.

In this embodiment, when starting the first process of the first application, the terminal may determine the process name of the first process and record the process name information of the first process. The process is similar to the first application startup process in Figure 2. The system first calls the activity management service module (activity manager service, AMS). The AMS determines whether the first process required by the first application exists. If it does not exist, the request The process incubation module (zygote) process starts the first process required by the first application. During the startup of the first process, AMS is responsible for creating and managing relevant data of the application framework. Before starting the first process, AMS reads the configuration information of the first application through the package manager service module (PMS). The configuration information includes the component information, permission information, application name information and Package name and other information. The AMS further determines the application name information and package name information of the first application through the configuration information, and uses the package name or application name of the first application as the process name of the first process. After determining the process name of the first process, AMS calls zygote, which completes the creation of the first process. When zygote creates the first process, zygote also calls the process management module in the kernel module. The process management module manages the first process, and records the process name of the first process into the process name attribute in the data structure describing process information in the kernel.

102. The terminal obtains the file creation instruction generated by the first process.

In this embodiment, when the terminal runs the first process, the terminal obtains the file creation instruction corresponding to the first process. In an actual application scenario, the file creation instruction may be an instruction generated by the terminal in response to the user operation when the user clicks the create file menu, or it may be an instruction for the first process to create a file while it is running.

103. The terminal creates the target file according to the create file instruction.

In this embodiment, after the terminal obtains the create file instruction, it creates the target file according to the create file instruction. The process of creating the target file is similar to the file creation process in Figure 2. The system can call the interface of File (class provided by java) and pass This interface accesses the file system (FS), and then completes file creation through the interface provided by File and the interface provided by FS.

104. The terminal determines that the creator information of the target file is the process name information of the first process, and writes it into the metadata of the target file.

In this embodiment, when the terminal creates the target file, the FS obtains the previously recorded process name information of the first process from the process management module, determines that the creator information of the target file is the process name information of the first process, and then Write the process name information of the first process into the metadata corresponding to the target file.

105. The terminal obtains a read instruction, which is used to instruct the terminal to read the creator information of the target file.

In this embodiment, after the creation of the target file is completed, the user or other applications can read the creator information of the created file through the second application according to the process of reading the creator information of the file as shown in FIG. 2 . The second application may be an application with the function of reading file creator information. For example, the second application may be a file management application, a photo album application, etc. Specifically, after the terminal responds to a user operation through the second application (for example, the user clicks the option to read file information) or receives a read request from other software (for example, file analysis software requests to read file creator information when analyzing a file), it generates Read instructions. This read instruction is a pre-defined instruction by the system for the File interface and FS interface (such as ioctl interface). Through this read instruction, the creator information of the file can be read from FS.

106. The terminal reads the creator information from the metadata of the target file according to the read instruction.

In this embodiment, after obtaining the read instruction, the terminal accesses the FS through the File interface, and reads the creator information pre-written in the metadata of the target file from the corresponding FS interface.

Furthermore, the terminal locally stores the corresponding relationships between different application name information and different process name information. After the terminal obtains the process name information of the first process, it can determine the target file corresponding to the process information of the first process and the corresponding relationship. The application name information of the first application determines the application corresponding to the target file.

Optionally, in some possible implementations, the user can actively modify the creator information of the file. When the user triggers the modification of the creator information of the target file through the input device of the terminal, the terminal obtains the modification instruction. The modification instruction carries target creator information, and the target creator information indicates the creator set by the user for the target file. Afterwards, the terminal modifies the creator information of the target file to the target creator information.

107. When the terminal runs the second process, the terminal obtains the target instruction generated by the second process and takes the target file as the operation object.

In this embodiment, when the second process of the terminal is running, the terminal obtains a target instruction regarding the target file, where the target instruction may be a copy instruction, a paste instruction, a conversion instruction, a compression instruction, a modification instruction, etc. Before the second process is run, the terminal records the process name information of the second process during startup. The startup process of the second process is as described above. It is similar to the startup process of the first process and will not be described again here.

108. The terminal creates an associated file of the target file according to the target instruction.

In this embodiment, after obtaining the target instruction, the terminal performs the corresponding target operation and creates an associated file of the target file. Wherein, corresponding to the target instruction, the associated file created may be a copy file, a conversion file, a compressed package file or a modified file, etc.

109. The terminal determines whether the target command is a preset command.

In this embodiment, after obtaining the target instruction, the terminal determines whether the target instruction is a preset instruction. The preset instructions can be set manually. For example, the preset instructions can be set to include paste instructions, encryption instructions, decryption instructions, and rename instructions.

In practical applications, the list of preset instructions can be maintained by the network side and pushed to the terminal regularly or when there are updates. For example, the terminal manufacturer can push the updated content of the preset instructions to the terminal along with the system update content when updating the system of the terminal, or push it to the terminal when the list is updated to ensure the timeliness of the list.

It should be noted that step 108 and step 109 have no necessary order of execution.

110. If the target command is a preset command, the terminal determines that the creator information of the associated file is the creator information of the target file, and writes it in the metadata of the associated file.

In this embodiment, when creating the associated file of the target file, the terminal simultaneously determines whether the target instruction is a preset instruction. If it is a preset instruction, when creating the associated file, the terminal obtains the creator information of the target file, and Write the creator information of the target file into the metadata corresponding to the currently created associated file as the creator information of the associated file.

For example, in a practical application, for example, after the user takes a photo through a camera application, the photo is saved locally. When saving, that is, when a photo file is created, the creator information of the photo file (target file) (ie, the process name information of the camera application process) is also saved in the metadata of the photo file. Later, when the user uses file management software to move or copy (paste command) the photo file to another folder, and a copy file (associated file) of the photo file is created in another folder, the creation of the copy file The user information is still the process name information of the camera application process. Or, after the user encrypts the photo file through encryption software, an encrypted file is generated, and the creator information of the encrypted file is still the process name information of the camera application process.

For another example, when the backup software performs local backup, the terminal needs to store the backup file in a preset local storage space. Afterwards, the backup file can be read from the preset storage space and the backup file can be restored to the original file. The backup file is a copy of the original file. During the generation process of the backup file and the recovery process of the original file, the terminal actually executes the copy command and the paste command: when the file is backed up, the terminal copies the original file (target file) and Paste it in the preset storage space to generate a backup file (associated file); when restoring the original file, the terminal copies the backup file (target file) and pastes it in the original path of the original file, thereby restoring the backup file to the original File (associated file). Since both the copy command and the paste command are preset commands, when the terminal backs up files locally through the backup software, it can be ensured that when the backed up original file is restored, the creator information of the restored original file will not be modified by the backup software. identification information, that is, the local backup will not change the creator information of the original file.

111. If the target command is not a preset command, the terminal determines that the creator information of the associated file is the process name information of the second process, and writes it in the metadata of the associated file.

In this embodiment, when creating the associated file of the target file, the terminal determines whether the target instruction is a preset instruction. If it is not a preset instruction, when creating the associated file, the terminal obtains the recorded process name of the second process. information, determine that the creator information of the associated file is the process name information of the second process, and write the process name information of the second process into the metadata of the associated file. After obtaining the read instruction, the terminal can read the creator information of the associated file from the metadata of the associated file. For the description of the preset instruction, please refer to the above.

For example, in an actual scenario, for example, after a user takes a photo through a camera application and saves it locally, the creator information of the saved photo file (target file) is the process name information of the camera application process. If the user modifies the photo file through photo editing software, save it (save as command) as a new file (associated file). When the terminal creates the new file, it determines that the creator information of the new file is the process name information of the photo editing software process, and writes the creator information of the new file in the metadata of the new file. Alternatively, the user uses compression software to compress at least one photo file (compression instruction) to generate a corresponding compressed package file (associated file). When the terminal creates the compressed package file, it determines that the creator information of the compressed package file is the process name information of the compression software process, and writes the creator information of the compressed package file in the metadata of the compressed package file.

It should be noted that steps 107 to 111 are optional steps.

Optionally, in some possible implementations, the terminal determines the file path of the target file and the creator information of the target file; the terminal generates the file path of the target file and the creator information of the target file. The corresponding relationship between the creator information is stored in the file path rule, and the file path rule is used to indicate the corresponding relationship between different creator information and different file paths.

In this embodiment, after creating the target file, the terminal generates a correspondence between the creator information of the target file and the file path of the target file, and saves it in the file path rule. After the terminal generates the file path rules for the target file, it is saved locally in the form of a file, which can accept the user's active modification. At the same time, when the path of the file created by some applications changes, it can also be updated with the update of the application. When the terminal receives a file sent by another device, if the creator information of the received file can be determined, the storage path corresponding to the file can be determined based on the creator information and file path rules of the file, and the file can be stored in the storage path. Save the file. Among them, the file path rule is used to indicate the corresponding relationship between different creator information and different file paths. The schematic table of the file path rule can be shown in Table 1 below.

Table 1

Optionally, in some possible implementations, the terminal obtains a display instruction, and the display instruction is used to instruct the terminal to display the creator information of the target file; the terminal displays the The creator information of the target file. In this embodiment, the terminal can respond to the user operation, generate a display instruction, query the metadata corresponding to the target file according to the display instruction, determine the creator information of the target file, and display the creator information of the target file. The display process can also be displayed in the form of a pop-up window or in other ways.

For example, as shown in Figure 3, when the user browses files on the interface of the file management software, after selecting the file, the user can enter a display instruction by clicking on the menu of the file management software for displaying the creator information of the file (touch operation 301 ), after the file manager software obtains this instruction, it queries the metadata of one or more displayed files, obtains the creator information of the displayed files, and compares the displayed creator information of one or more files with this one or more files. Multiple files are displayed correspondingly, for example, displayed below or above the corresponding file icon, or displayed at the bottom of the screen as shown in FIG. 3 .

As shown in Figure 4, when the user opens a certain file, he or she may enter a display instruction through a touch operation 401 (such as long touch, double-click or preset gesture) or a preset menu, and the terminal responds to the touch operation 401 to obtain The creator information of the file, and the creator is overlaid and displayed in the file display area. For example, when a user clicks on a picture in the photo album and opens a picture, he or she can enter a display instruction through a preset gesture or a preset menu. The terminal responds to the gesture or menu selection, and the creator information can be displayed in a transparent or translucent form overlaid on the above the picture.

Optionally, in some possible implementations, the terminal obtains a file classification instruction, and the file classification instruction is used to instruct the terminal to display multiple files according to the creator of the file; the terminal classifies the files according to the file classification The instruction obtains the creator information of the multiple files, and displays the multiple files in categories according to the creator information of the multiple files. In this embodiment, the terminal can generate a file classification instruction based on the user's operation response or receive other application calls. The terminal queries the metadata corresponding to the target file according to the file classification instruction, determines the creator information of the target file, and then creates the target file based on the file classification instruction. The target file is displayed by category. In practical applications, it can be used in many situations. For example, music saved by different music software is classified and displayed in different folders, pictures saved by different applications are classified and displayed in photo albums (as shown in Figure 5), documents edited by different editing software are classified and displayed, etc.

Optionally, in some possible implementations, the terminal obtains a deletion instruction. The deletion instruction carries target creator information and is used to instruct the terminal to delete the file to be deleted. The creator information of the file to be deleted is The file of the target creator information; the terminal searches for the file to be deleted according to the deletion instruction; the terminal deletes the target file to be deleted according to the deletion instruction. In this embodiment, the terminal can obtain the deletion instruction according to the user's operation response or receive other application calls. The deletion instruction carries the target creator information. After the terminal obtains the deletion instruction, it searches and deletes the creator information as the target creator information. The files to be deleted, that is, the files created by the application corresponding to the target creator information are deleted. It should be noted that the target creator information carried in the deletion instruction can be set by the user, or can be set by the terminal after determining the uninstalled application, and set to the application name of the uninstalled application, Process name or package name information of application package, etc.

It can be seen from the above technical solutions that the embodiments of the present application have the following advantages:

When the terminal starts the first process, the process name information of the first process is recorded. If the terminal creates the target file through the first process, the terminal determines that the creator information of the target file is the process name information of the first process, and writes it in the metadata corresponding to the target file. Therefore, after the terminal obtains the read instruction, it can read the creator information of the target file from the metadata of the target file. To sum up, this embodiment achieves convenient and accurate reading of the creator information of the file based on the characteristics of the metadata by recording the creator information of the file in the metadata of the file.

The above embodiment describes the process of directly creating a target file, and another case will be described below.

Referring specifically to Figure 6 below, Figure 6 is a schematic diagram of another embodiment of a method for recording file creator information in an embodiment of the present application, which may include:

601. The terminal receives the target file sent by other terminals or network servers through the first process.

In this embodiment, when the first process of the terminal is running, the terminal receives target files sent by other terminals or network servers through the first process. The first process may be a process of backup software, Bluetooth, browser or real-time communication software. Other terminals generally refer to any device other than the terminal that can perform data interaction with the terminal, such as mobile phones, computer terminals, etc. The target file may be a backup file restored by the terminal from a preset device through backup software, a picture or document file cached when the user uses a browser to browse the web, or a file received by the terminal from other devices through Bluetooth software, etc.

602. The terminal obtains the save instruction of the first process. The save instruction is used to instruct the terminal to save the target file.

In this embodiment, the save instruction can be a preset instruction that is automatically generated by the terminal after receiving the target file. For example, when the user browses a web page, the terminal automatically generates a save instruction when caching web page files through the browser; It can also be in response to user operations, such as a save instruction generated by the terminal when the user clicks the file save option.

603. The terminal saves the target file according to the save instruction.

In this embodiment, after receiving the target file, the terminal saves the target file locally.

604. The terminal determines whether the application corresponding to the first process is a default application.

In this embodiment, the user can set a default application list (also called a list) in the terminal system in advance. The default application list may include a list of application names, package names, or process names of the default applications. Therefore, when starting the first process, the terminal can determine whether the application corresponding to the first process is a default application through the process name of the first process or its corresponding application name and package name.

The list of preset applications can be maintained by the network side and pushed to the terminal regularly or when there are updates. For example, the terminal manufacturer will maintain the default software list on the application market and the process name corresponding to the default software when running on its server side, and push it to the terminal regularly, or push it to the terminal when the list is updated to ensure the timeliness of the list. sex.

It should be noted that there is no necessary execution order of step 603 and step 604.

605. When it is determined that the application corresponding to the first process is not a default application, the terminal determines that the creator information of the target file is the process name information of the first process, and writes it in the metadata of the target file.

In this embodiment, when the first process is started, the terminal records the process name information of the first process. If the application corresponding to the first process is not a default application, the terminal determines that the creator information of the target file is the process name information of the first process. The terminal reads the recorded process name information of the first process and writes it into the metadata of the target file.

For example, in actual applications, for example, the preset application list may include backup software. Then, when the terminal receives the file sent by the network through the process of the instant messaging software, the terminal saves the file locally. Since the instant messaging software is not in the default application list, when saving the file, the terminal determines that the creator information of the file is the process name information of the instant messaging software process, and writes the creation of the file in the metadata of the file. or information. For another example, after the terminal receives a file sent by another device through Bluetooth software, because the Bluetooth software is not in the default application list, when saving the file, the terminal determines that the creator information of the file is the process name information of the Bluetooth software process, and Writes the file's creator information in the file's metadata.

606. If the application corresponding to the first process is a default application, the terminal obtains the rule table information.

In this embodiment, when the first process is started, the terminal records the process name information of the first process. If the application corresponding to the first process is a default application, the terminal obtains rule table information. The rule table information is used to indicate the correspondence between the identification information of different files and the different creator information. The identification information includes the file name information of the file. , category information, and at least one of file modification time information.

Specifically, the corresponding relationship may be a corresponding relationship between the identification information of the target file and the process name information. The identification information of the target file may be a specific identification of the target file, such as file name, file size, file path or other attribute information that can uniquely or combined identify the target file. After the rule table file is generated by the terminal, it can be saved locally, or sent to other terminals or saved on a network server. The terminal may determine the creator information uniquely corresponding to the target file based on one or more identification information of the target file. A schematic table of the rule table information can be shown in Table 2 below.

file name size Modification date File category Creator information file.txt 5kb 2017.01.11 document com.tencent.mm string.mp3 6kb 2017.01.11 music QQ final.mp4 1kb 2017.01.11 video Tik Tok text.jpg 300kb 2018.01.11 picture android.browser Taobao.apk 100M 2018.01.12 application package com.android.thememanager

Table 2

In actual applications, the rule table information can be stored in the terminal, or in other terminals or network servers. For example, if the first process is a process of backup software, the default application list includes the backup software. The user previously backed up the target file through backup software and saved the backup file on other terminals or on the network. Later, when the terminal restores the file through the backup software (receiving the backup file from other terminals or the network), in order to prevent the creator information of the restored file from being modified to the process name information of the backup software process, you can restore the backup file before restoring it. , the terminal generates the rule table information according to the creator information of the target file that needs to be backed up, and saves the rule table locally on the terminal, or saves it with the backup file on other terminals or network servers. Therefore, when performing file recovery, the terminal determines the creator information of the recovered file through the rule table.

Optionally, in some possible implementations, when it is determined that the application corresponding to the first process is a default application, the terminal does not set the creator information in the metadata of the target file. In this embodiment, after the terminal receives the target file sent by other terminals or network servers through the first process, if the application corresponding to the first process is a default application, the terminal does not set the creation in the metadata of the target file. or information. Among them, not setting means that if the creator information already exists in the received metadata of the target file, the creator information will not be modified. If the creator information does not exist in the received metadata of the target file, the terminal Creator information is also not added to the target file's metadata during the save process.

In actual scenarios, for example, if the default application is a backup software application, after the terminal receives the target file sent by other terminals or network servers, when restoring (saving the target file), the metadata of the target file will not be modified or added. Creator information.

607. The terminal determines the creator information of the target file based on the identification information and rule table information of the target file, and writes it in the metadata of the target file.

In this embodiment, after the terminal obtains the rule table information, the terminal can determine the creator information of the target file by comparing the received identification information of the target file with the rule table information. Specifically, the file name can be determined first. If the unique correspondence between the target file and the creator information cannot be determined, the file category, file size or modification date can be compared until the unique correspondence between the target file and the creator information is determined. . Afterwards, the terminal writes the creator information of the target file in the metadata of the target file.

Optionally, in some possible implementations, if the application corresponding to the first process is a default application, the terminal first determines that the creator information of the target file is the process name information of the first process. , and write the creator information of the target file in the metadata of the target file. However, the creator information written in the metadata at this time may be inaccurate or inappropriate, so the terminal will obtain the rule table later. information, and updates the creator information of the target file according to the rule table information. The updated creator information of the target file is generated by the terminal according to the identification information of the target file and the rule table information. Sure. In this embodiment, if the first process is a backup software process, and the default application list also includes the backup software, then when the terminal receives the backup file (file recovery) sent by other terminals or the network through the backup software, it saves the file. , first modify the saved file's creator information to the process name information of the backup software process, and then update the saved file's creator information according to the rule table information.

608. The terminal obtains the read instruction.

609. The terminal reads the creator information corresponding to the target file according to the file reading instruction.

It should be noted that step 608 and step 609 are similar to step 105 and step 106 in the embodiment shown in FIG. 1 and will not be described again here.

Optionally, in some possible implementations, when the second process is running, the terminal obtains the target instruction generated by the second process and takes the target file as the operation object; the terminal creates the target file according to the target instruction. Associated files of the target file, the associated files include copy files, modified files, encryption and decryption files, or decompressed files corresponding to the target file; if the target instruction is a preset instruction, the terminal determines the association The creator information of the file is the creator information of the target file, and the creator information of the associated file is written in the metadata of the associated file; if the target instruction is not a preset instruction, the The terminal determines that the creator information of the associated file is the process name information of the second process, and writes the creator information of the associated file in the metadata of the associated file.

It should be noted that this optional step is similar to steps 107 to 111 in the embodiment shown in FIG. 1 and will not be described again here.

Optionally, in some possible implementations, the terminal determines the file path of the target file and the creator information of the target file; the terminal generates the file path of the target file and the creator information of the target file. The corresponding relationship between the creator information is stored in the file path rule, and the file path rule is used to indicate the corresponding relationship between different creator information and different file paths.

Optionally, in some possible implementations, the terminal obtains a display instruction, and the display instruction is used to instruct the terminal to display the creator information of the target file; the terminal displays the The creator information of the target file.

Optionally, in some possible implementations, the terminal obtains a file classification instruction, and the file classification instruction is used to instruct the terminal to display multiple files according to the creator of the file; the terminal classifies the files according to the file classification The instruction obtains the creator information of the multiple files, and displays the multiple files in categories according to the creator information of the multiple files.

Optionally, in some possible implementations, the terminal obtains a deletion instruction. The deletion instruction carries target creator information and is used to instruct the terminal to delete the file to be deleted. The creator information of the file to be deleted is The file of the target creator information; the terminal searches for the file to be deleted according to the deletion instruction; the terminal deletes the target file to be deleted according to the deletion instruction.

It should be noted that the above optional steps are similar to the optional steps in the embodiment shown in FIG. 1 and will not be described again here.

It can be seen from the above technical solutions that the embodiments of the present application have the following advantages:

After the terminal receives the target file sent by other terminals through the first process, the terminal obtains the save instruction of the first process and saves the target file according to the save instruction. Afterwards, the terminal determines whether the application corresponding to the first process is a default application. If the application corresponding to the first process is a default application, for example, the default application list includes backup software, the first process is a process of the backup software. In order to prevent the received file from being modified to the process name information of the first process, the terminal can obtain the rule table information when saving the target file, thereby determining the creator information of the target file based on the rule table information, and in the target file Write the creator information of the target file in the metadata. Or after determining that the application corresponding to the first process is a default application, the terminal does not set the creator information in the metadata of the target file when saving the target file. If the first process is not a default application, the terminal determines that the creator information of the target file is the process name information of the first process, and writes the creator information of the target file in the metadata of the target file. Afterwards, after the terminal obtains the read instruction, it can read the creator information of the target file according to the read instruction. To sum up, this embodiment achieves convenient and accurate reading of the creator information of the file based on the characteristics of the metadata by recording the creator information of the file in the metadata of the file.

The above-described embodiment describes the process of recording and reading file creator information when creating a file. However, in actual applications, there may also be situations where the corresponding process name information is not recorded in the metadata of the existing files in the system, so the creator of the file cannot be read from the metadata. For example, when creating a file, the method of recording and reading the creator information in the file's metadata is the system's update function. The system before the update does not have this function, so the files that have been created in the system before the update will The corresponding creator information is not recorded in the metadata. Especially for files on sdcard, there is a lack of method to directly read the creator information in the existing technology. Based on this, the following proposes a method for recording and reading file creator information if the creator information is not recorded in the metadata of an existing file.

Referring specifically to Figure 7 below, Figure 7 is a schematic diagram of another embodiment of a method for recording file creator information in an embodiment of the present application, which may include:

701. The terminal obtains a configuration instruction, which is used to instruct to set the creator information for the file to be configured.

In this embodiment, the terminal generates a configuration instruction after responding to user input or instructions from other software, where the configuration instruction is used to instruct the terminal to set creator information for the file to be configured. The corresponding creator information is not recorded in the metadata corresponding to the file to be configured.

702. The terminal determines the file to be configured according to the configuration instruction. The metadata corresponding to the file to be configured does not record the creator information of the file to be configured.

In this embodiment, after the terminal obtains the configuration instruction, the terminal queries the creator information of the locally saved files, and determines the files to be configured that do not have creator information recorded in the metadata.

703. The terminal obtains file path rules according to the configuration instructions.

In this embodiment, after obtaining the configuration instruction, the terminal searches for and obtains the file path rule file locally. It should be noted that the file path rule file can refer to the above. For example, in the optional steps corresponding to the embodiment shown in Figure 1 or Figure 6, the file path rule described, that is, the obtained file path rule can be a terminal After the target file is created, file path rules are generated based on the creator information recorded in the target file metadata and the corresponding file path.

Optionally, the file path rule can also be the code of the file created by the user through reverse analysis application, or the file path rule applied by dynamic debugging and test analysis. After the terminal obtains the configuration instruction, the terminal obtains the file path rule saved by the user locally.

704. The terminal determines the creator information of the file to be configured based on the file path of the file to be configured and the file path rule.

In this embodiment, after the terminal determines the file to be configured, it can determine the creator information corresponding to the file to be configured from the correspondence relationship indicated in the file path rule through the file path of the file to be configured. For example, the file to be configured includes the first file, where the file path of the first file is: /storage/emulated/app1/cache, as shown in Table 1, then the first file is determined according to the file path rules shown in Table 1 The corresponding creator information is the application name APP1. In addition, it should be noted that if the file path of the first file is: /storage/My Documents, according to the file path rules shown in Table 1, because its corresponding creator information includes APP1 and APP2, the terminal cannot determine the first file. Which application name information corresponds to the creator information of a file, as shown in Figure 8, the terminal can display a pop-up window (pop-up window 800, in which the file name of the first file is: 67gfdfgdfg), and prompt the user to enter the first The creator information of the file.

It should be noted that when the file to be configured is a file on the sdcard, the terminal can obtain the creator information of the file to be configured by executing steps 703 and 704; if the file to be configured is internal data, the terminal can also obtain the uid of the file. , gid method, and then determine the application name information corresponding to the file to be configured based on the uid and gid of the file to be configured.

705. The terminal writes the creator information of the file to be configured in the metadata corresponding to the file to be configured.

In this embodiment, after determining the creator information corresponding to the file to be configured, the terminal writes the creator information of the file to be configured in the metadata of the file to be configured.

706. The terminal obtains the read instruction.

707. The terminal reads the creator information corresponding to the file to be configured according to the file reading instruction.

It should be noted that steps 706 and 707 are similar to the process of reading the creator information of the target file in steps 105 and 106 in the embodiment shown in FIG. 1 , and will not be described again here.

Optionally, in some possible implementations, when the second process is running, the terminal obtains the target instruction generated by the second process and takes the target file as the operation object; the terminal creates the target file according to the target instruction. Associated files of the target file, the associated files include copy files, modified files, encryption and decryption files, or decompressed files corresponding to the target file; if the target instruction is a preset instruction, the terminal determines the association The creator information of the file is the creator information of the target file, and the creator information of the associated file is written in the metadata of the associated file; if the target instruction is not a preset instruction, the The terminal determines that the creator information of the associated file is the process name information of the second process, and writes the creator information of the associated file in the metadata of the associated file.

It should be noted that this optional step is similar to steps 107 to 111 in the embodiment shown in FIG. 1 and will not be described again here.

Optionally, in some possible implementations, the terminal obtains a display instruction, and the display instruction is used to instruct the terminal to display the creator information of the target file; the terminal displays the The creator information of the target file.

Optionally, in some possible implementations, the terminal obtains a file classification instruction, and the file classification instruction is used to instruct the terminal to display multiple files according to the creator of the file; the terminal classifies the files according to the file classification The instruction obtains the creator information of the multiple files, and displays the multiple files in categories according to the creator information of the multiple files.

Optionally, in some possible implementations, the terminal obtains a deletion instruction. The deletion instruction carries target creator information and is used to instruct the terminal to delete the file to be deleted. The creator information of the file to be deleted is The file of the target creator information; the terminal searches for the file to be deleted according to the deletion instruction; the terminal deletes the target file to be deleted according to the deletion instruction.

It should be noted that the above optional steps are similar to the optional steps in the embodiment shown in FIG. 1 and will not be described again here.

It can be seen from the above technical solutions that the embodiments of the present application have the following advantages:

When the metadata of some files in the system does not contain creator information, the terminal determines that these files are files to be configured. After the terminal receives the configuration instruction, the terminal determines the file to be configured according to the configuration instruction, and queries the creator information corresponding to the file to be configured from the file path rules that already exist in the terminal through the file path of the file to be configured. And write the creator information of the file to be configured in the metadata of the file to be configured. Therefore, after the terminal obtains the read instruction, it can read its corresponding creator information from the metadata of the file to be configured. To sum up, this embodiment achieves convenient and accurate reading of the creator information of the file based on the characteristics of the metadata by recording the creator information of the file in the metadata of the file.

Referring specifically to Figure 9A below, Figure 9A is a schematic diagram of a terminal in an embodiment of the present application, including:

Obtaining unit 901, used to obtain file creation instructions;

Creation unit 902, used to create a target file according to the create file instruction;

Determining unit 903, configured to determine the creator information of the target file. The creator information of the target file includes identification information of the application that created the target file or identification information of the process;

The writing unit 904 is configured to write the creator information of the target file in the metadata corresponding to the target file.

In one possible design,

The determination unit 903 is also used to determine the first process running on the terminal, and the first process generates the create file instruction;

The determining unit 903 is specifically configured to determine that the creator information of the target file is the identification information of the application corresponding to the first process or the identification information of the first process.

In one possible design,

The acquisition unit 901 is also configured to receive the target file sent by other terminals or network servers through the first process;

The obtaining unit 901 is specifically used to obtain the saving instruction of the first process, and the saving instruction is used to instruct saving of the target file;

The terminal also includes:

A judging unit, used to judge whether the application corresponding to the first process is a default application;

The determining unit 903 is specifically configured to determine that the creator information of the target file is the identification information of the application corresponding to the first process or the identification information of the first process when it is determined that the application corresponding to the first process is not a default application. Identification information; when it is determined that the application corresponding to the first process is a default application, the creator information in the metadata of the target file is not set.

In one possible design, specifically referring to Figure 9B, Figure 9B is a schematic diagram of another embodiment of the terminal in the embodiment of the present application,

The acquisition unit 901 is also configured to receive the target file sent by other terminals or network servers through the first process; when it is determined that the application corresponding to the first process is a default application, obtain the rule table information. The rule table The information is received from the other terminal or the network server, or is stored in the terminal. The rule table information is used to indicate the corresponding relationship between the identification information of different files and different creator information. The identification information of the file is used for the terminal. Uniquely determine the file corresponding to the identification information;

The obtaining unit 901 is specifically used to obtain the saving instruction of the first process, and the saving instruction is used to instruct saving of the target file;

The terminal can also include:

The judging unit 905 is used to judge whether the application corresponding to the first process is a default application;

The determining unit 903 is specifically configured to determine that the creator information of the target file is the identification information of the application corresponding to the first process or the identification information of the first process when it is determined that the application corresponding to the first process is not a default application. Identification information; when it is determined that the application corresponding to the first process is a default application, the creator information of the target file is determined based on the identification information of the target file and the rule table information.

In one possible design,

The determining unit 903 is also used to determine the file path of the target file and the creator information of the target file;

The creation unit 902 is also used to generate the corresponding relationship between the file path of the target file and the creator information of the target file, and save it in the file path rule. The file path rule is used to indicate different creator information and different files. Correspondence of paths.

In one possible design,

The acquisition unit 901 is also used to obtain a configuration instruction, which is used to instruct to set the creator information for the file to be configured; obtain the file path rule;

The determining unit 903 is also configured to determine the file to be configured according to the configuration instruction. The metadata corresponding to the file to be configured does not record the creator information of the file to be configured; according to the file path of the file to be configured and the file path rule Determine the creator information of the file to be configured;

The writing unit 904 is also configured to write the creator information of the file to be configured in the metadata corresponding to the file to be configured.

In one possible design,

The acquisition unit 901 is also configured to acquire the target instruction generated by the second process with the target file as the operation object when running the second process;

The creation unit 902 is also configured to create an associated file of the target file according to the target instruction. The associated file includes a copy file, a modified file, an encryption/decryption file, or a decompression file corresponding to the target file;

The writing unit 904 is also configured to, if the target instruction is a preset instruction, determine the creator information of the associated file as the creator information of the target file, and write the associated file's metadata in the metadata of the associated file. Creator information; if the target instruction is not a default instruction, determine the creator information of the associated file as the identification information of the application corresponding to the second process or the identification information of the second process, and add it to the element of the associated file. The creator information of the associated file is written in the data.

In a possible design, the preset instruction includes a paste instruction, a rename instruction, an encryption instruction or a decryption instruction.

In a possible design, the identification information of the application or the identification information of the process includes application name information, process name information, or package name information of the application package.

In one possible design, specifically referring to Figure 9C, Figure 9C is a schematic diagram of another embodiment of the terminal in the embodiment of the present application,

The acquisition unit 901 is also used to obtain a modification instruction, which is used to instruct the terminal to modify the creator information of the target file, and the modification instruction carries the target creator information;

The terminal can also include:

The modification unit 906 is configured to modify the creator information of the target file to the target creator information according to the modification instruction.

In one possible design, specifically referring to Figure 9D, Figure 9D is a schematic diagram of another embodiment of the terminal in the embodiment of the present application,

The acquisition unit 901 is also used to acquire a display instruction, which is used to instruct display of the creator information of the target file;

The terminal can also include:

The first display unit 907 is configured to display the creator information of the target file according to the display instruction.

In one possible design, specifically refer to FIG. 9E, which is a schematic diagram of another embodiment of a terminal in an embodiment of the present application.

The obtaining unit 901 is also used to obtain a file classification instruction, which is used to instruct the terminal to display multiple files according to the creator of the file;

The terminal can also include:

The second display unit 908 is configured to obtain the creator information of the multiple files according to the file classification instruction, and display the multiple files according to the creator information of the multiple files.

In a possible design, specifically refer to FIG. 9F, which is a schematic diagram of another embodiment of a terminal in an embodiment of the present application.

The acquisition unit 901 is also used to obtain a deletion instruction. The deletion instruction carries the target creator information and is used to instruct the deletion of the file to be deleted. The file to be deleted is a file whose creator information is the target creator information;

The terminal can also include:

The search unit 909 is used to search for the file to be deleted according to the deletion instruction;

The deletion unit 910 is configured to delete the target file to be deleted according to the deletion instruction.

Referring specifically to Figure 10 below, Figure 10 is a schematic diagram of another embodiment of a terminal in an embodiment of the present application, which may include:

Processor 1001, memory 1002, and transceiver 1003; the transceiver 1003 is used to communicate with devices outside the terminal; the memory 1002 is used to store instruction codes; the processor 1001 executes the instruction codes When, the terminal is caused to execute the method executed by the terminal in the embodiment shown in Figure 1, Figure 6 or Figure 7 and any optional manner.

Embodiments of the present application also provide a computer storage medium. The medium stores instructions. When the instructions are run on a computer, the computer is caused to execute the embodiments shown in Figure 1, Figure 6 or Figure 7 and any possible The method executed by the terminal in the selected mode.

Embodiments of the present application also provide a computer program product containing instructions. When the instructions are run on a computer, the computer causes the computer to execute the embodiments shown in Figure 1, Figure 6 or Figure 7 and the terminal in any optional manner. The method performed.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another, e.g., the computer instructions may be transferred from a website, computer, server, or data center Transmission to another website, computer, server or data center by wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains one or more available media integrated. The available media may be magnetic media (eg, floppy disk, hard disk, magnetic tape), optical media (eg, DVD), or semiconductor media (eg, Solid State Disk (SSD)), etc.

Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, devices and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be described again here.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or can be integrated into another system, or some features can be ignored, or not implemented. On the other hand, the coupling or direct coupling or communication connection between each other shown or discussed may be through some interfaces, and the indirect coupling or communication connection of the devices or units may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or they may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present application can be integrated into one processing unit, each unit can exist physically alone, or two or more units can be integrated into one unit. The above integrated units can be implemented in the form of hardware or software functional units.

If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or contributes to the existing technology, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , including several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of this application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program code.

As mentioned above, the above embodiments are only used to illustrate the technical solution of the present application, but not to limit it. Although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still make the foregoing technical solutions. The technical solutions described in each embodiment may be modified, or some of the technical features thereof may be equivalently replaced; however, these modifications or substitutions shall not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of each embodiment of the present application.

Claims (14)

1. A method for a terminal to record file creator information, comprising:

acquiring a file creation instruction;

creating a target file according to the file creating instruction;

determining creator information of the target file, wherein the creator information of the target file comprises identification information of an application or identification information of a process for creating the target file;

writing creator information of the target file in metadata corresponding to the target file;

determining a file path of the target file and creator information of the target file, wherein the file path of the target file comprises: an internal storage path and an external storage path;

Generating a corresponding relation between a file path of the target file and creator information of the target file, and storing the corresponding relation in a file path rule, wherein the file path rule is used for indicating the corresponding relation between different creator information and different file paths;

acquiring a configuration instruction, wherein the configuration instruction is used for indicating the terminal to set creator information for a file to be configured;

determining the file to be configured according to the configuration instruction, wherein creator information of the file to be configured is not recorded in metadata corresponding to the file to be configured;

acquiring the file path rule according to the configuration instruction;

if the file to be configured is external data, determining creator information of the file to be configured according to a file path of the file to be configured and the file path rule;

if the file to be configured is internal data, determining creator information of the file to be configured according to an identity mark uid and a group mark gid of the file to be configured;

writing creator information of the to-be-configured file in metadata corresponding to the to-be-configured file.

2. The method according to claim 1, wherein the method further comprises:

determining a first process running on the terminal, wherein the first process generates the file creation instruction;

Determining creator information of the target file, comprising:

and determining the creator information of the target file as the identification information of the application corresponding to the first process or the identification information of the first process.

3. The method of claim 1, wherein prior to the obtaining the create file instruction, the method further comprises:

receiving the target file sent by other terminals or a network server through a first process;

the file creation instruction is specifically:

acquiring a saving instruction of the first process, wherein the saving instruction is used for indicating to save the target file;

before said determining creator information for said target file, said method further comprises:

judging whether the application corresponding to the first process is a preset application or not;

determining creator information of the target file, comprising:

determining that creator information of the target file is identification information of the application corresponding to the first process or identification information of the first process under the condition that the application corresponding to the first process is not a preset application;

and under the condition that the application corresponding to the first process is judged to be the preset application, the creator information in the metadata of the target file is not set.

4. The method of claim 1, wherein prior to the obtaining the create file instruction, the method further comprises:

receiving the target file sent by other terminals or a network server through a first process;

the file creation instruction is specifically:

acquiring a saving instruction of the first process, wherein the saving instruction is used for indicating to save the target file;

before said determining creator information for said target file, said method further comprises:

judging whether the application corresponding to the first process is a preset application or not;

determining creator information of the target file, comprising:

determining that creator information of the target file is identification information of the application corresponding to the first process or identification information of the first process under the condition that the application corresponding to the first process is not a preset application;

acquiring rule table information if the application corresponding to the first process is a preset application, wherein the rule table information is received from the other terminals or the network server or is stored in the terminal, the rule table information is used for indicating the corresponding relation between identification information of different files and different creator information, and the identification information of the files is used for the terminal to uniquely determine the files corresponding to the identification information;

And determining creator information of the target file according to the identification information of the target file and the rule table information.

5. The method according to any one of claims 1 to 4, further comprising:

acquiring a target instruction which is generated by a second process and takes the target file as an operation object;

creating an associated file of the target file according to the target instruction, wherein the associated file comprises a copy file, a modified file, an encryption and decryption file or a decompression file corresponding to the target file;

if the target instruction is a preset instruction, determining that the creator information of the associated file is the creator information of the target file, and writing the creator information of the associated file in metadata of the associated file;

if the target instruction is not the preset instruction, determining that the creator information of the associated file is the identification information of the application corresponding to the second process or the identification information of the second process, and writing the creator information of the associated file in the metadata of the associated file.

6. The method of claim 5, wherein the preset instructions comprise a paste instruction, a rename instruction, an encrypt instruction, or a decrypt instruction.

7. The method according to any one of claims 1 to 6, wherein the identification information of the application or the identification information of the process includes application name information, process name information, or package name information of an application package.

8. The method according to any one of claims 1 to 7, further comprising:

acquiring a modification instruction, wherein the modification instruction is used for indicating the terminal to modify creator information of the target file, and the modification instruction carries target creator information;

and modifying creator information of the target file into the target creator information according to the modification instruction.

9. The method according to any one of claims 1 to 8, further comprising:

acquiring a display instruction, wherein the display instruction is used for indicating the terminal to display creator information of the target file;

and displaying creator information of the target file according to the display instruction.

10. The method according to any one of claims 1 to 9, further comprising:

acquiring a file classification instruction, wherein the file classification instruction is used for indicating the terminal to display a plurality of files according to the classification of creator of the files;

And acquiring creator information of the files according to the file classification instruction, and displaying the files according to the creator information classification of the files.

11. The method according to any one of claims 1 to 10, further comprising:

acquiring a deleting instruction, wherein the deleting instruction carries target creator information, and the deleting instruction is used for instructing the terminal to delete a file to be deleted, and the file to be deleted is a file with creator information as the target creator information;

searching the file to be deleted according to the deleting instruction;

and deleting the file to be deleted according to the deleting instruction.

12. A terminal for recording file creator information, comprising:

the acquisition unit is used for acquiring a file creation instruction;

the creation unit is used for creating a target file according to the file creation instruction;

a determining unit configured to determine creator information of the target file, where the creator information of the target file includes identification information of an application or identification information of a process that creates the target file;

a writing unit, configured to write creator information of the target file in metadata corresponding to the target file;

The determining unit is further configured to determine a file path of the target file and creator information of the target file, where the file path of the target file includes: an internal storage path and an external storage path;

the creating unit is further configured to generate a corresponding relationship between a file path of the target file and creator information of the target file, and store the corresponding relationship in a file path rule, where the file path rule is used to indicate a corresponding relationship between different creator information and different file paths;

the acquisition unit is further used for acquiring a configuration instruction, wherein the configuration instruction is used for indicating setting creator information for a file to be configured; acquiring the file path rule;

the determining unit is further configured to determine the to-be-configured file according to the configuration instruction, where creator information of the to-be-configured file is not recorded in metadata corresponding to the to-be-configured file; determining creator information of the file to be configured according to the file path of the file to be configured and the file path rule;

the writing unit is further configured to write creator information of the to-be-configured file in metadata corresponding to the to-be-configured file.

13. A terminal for recording file creator information, comprising:

A processor, a memory, and a transceiver;

the transceiver is used for communicating with devices outside the terminal;

the memory is used for storing instruction codes; the processor, when executing the instruction code, causes the terminal to perform the method of any of claims 1-11.

14. A computer storage medium storing instructions which, when executed on a computer, cause the computer to perform the method of any one of claims 1 to 11.