KR20020075322A - Through Server to Server, Realtime Live Update System on HTTP - Google Patents

Abstract

PURPOSE: A real time program patch and update system between servers using HTTP is provided, to allow the user not to pay attention to the patch or update of the program by automatic and real time patch and update system. CONSTITUTION: The real time program patch and update system is such that the supplier server system recognizes the need of update, recognizes the version information of the user server based on the referrer, and transmits the patch or update data to the user server by using HTTP in real time. The transmission of the patch or update data to the user server is carried out after the certification process.

Description

Real-time patching and updating system of server-to-server programs using HTTP {Through Server to Server, Realtime Live Update System on HTTP}

Up until now, the general installation and update of computer programs has been the way for users to download and install a new version of the program. In recent years, some programs that need to be updated periodically add intelligent convenience, but this is mostly due to the utility of a computer (desktop PC) utility of general users, and Internet services, especially In an environment based on a web server, its utilization is extremely low.

Currently installed web program installation and update methods include ① download the program to be installed on the user's PC, ② transfer the file to the server via FTP (File Transfer Protocol), ③ connect to the server via Telnet Executing the installation file in ④ Executing the installation file on the web with a web browser, ⑤ When the need for an update occurs, it is executed in the same way as when installing through a recording medium such as a CD-ROM.

This means that web program users have to repeat the post-installation maintenance process, always paying attention to the updated version of the program, and miss the right time. In addition, the mistakes that users may make during the update process cannot be overlooked, and the backup and storage of existing programs and data as well as the database are left to the user. As a result, a web program installed by the user requires an FTP user ID and password and must be utilized in the program. Therefore, a security vulnerability is expected.

Looking at the definition of the Hyper Text Transfer Protocol (HTTP) 10, it is an application layer protocol designed for the development of hypermedia information systems for distributed and collaborative environments. It is defined as the protocol used for transmission. It is also an object-oriented protocol that can be used for various things such as name server and distributed object management system through the addition of request commands, and mime like voice, video, data, etc. as well as hypertext documents seen in general text documents. You can send any document type that can be defined by Multipurpose Internet Mail Extensions (MIME). In other words, HTTP 10 is a data transmission / reception protocol used on the web and is an application layer protocol based on the TCP transport layer protocol. Therefore, depending on the nature of the TCP transmission, it can be transmitted in 8-bit binary mode for all data formats.

At present, data transmission and reception using HTTP (10) can be utilized, but this is extremely limited. As a limitation, only data transmission and reception from the server 12, 21 to the end user 11 and the end user 11 to the server 12, 21 are performed, and the operation is requested by the end user. This is done only by the server's response.

Request is an HTTP message sent by the browser to request some data on the HTTP 10 protocol; A response is an HTTP message that sends to the browser a result of processing by a server for a request received on an HTTP 10 protocol; Client (Client) is an application that serves to send a request in accordance with the HTTP protocol protocol and to receive a response from the server, and establishes a connection for transmitting a request message in the transmission and reception; A server is an application that allows a connection to provide a requested service. Finally, a server stores actual data and provides a service for a received request, or provides a place where a request can be stored.

The purpose of the present invention is to transfer data from the server (20, 21) to the server (20, 21) via HTTP, through which the user who installed the program does not mind the update of the program, the program provider program It includes a general function of controlling the update in the manner of pushing (Push) from the server 20 to the server (21).

1 is a structural diagram of a conventional general HTTP,

2 is a structural diagram of a server-to-server communication system using a real-time update of the present invention;

3 is an operation flowchart of a real-time patch and update system of a server-server program using HTTP of the present invention.

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

11: End User (Browser, End User)

12: web server

20: provider web server

21: Client Web Server (User Server)

15, 22, 23: Compiler

10: Hyper Text Transfer Protocol (HTTP)

In order to achieve the object as described above, the real-time patch and update system of the program installed in the server according to the present invention, the step of installing the initial installation program to the user server (21); Executing programs installed on the user server 21 by the server 20 of the program provider 311 and 321; Step 312, the program installed in the user server 21 attempts to connect to the supplier server 20; The provider server 20 checks the referrer and the Internet protocol (IP) in the request of the user server 21 and inquires a database, and then checks whether the user is a registered user (server). Authenticating the user server 21 and finally authenticating through a series of encryption techniques (322); The provider server 20 creates a file to instruct the user server 21 the path, file name, extension, and other actions (database query, batch script, etc.) of the updater located on the provider server 20. After the step (323) to designate a port that can be assigned to the provider server 20 to the user server 21 if necessary; The user server 21 downloads a document containing the path and file name of the update program of the supplier server 20 based on the variable Data transferred from the supplier server 20, and then supplies the update program based on the document. Downloading (313) from (20); If there is a case that the program is executed by the mime type of the predetermined file or the extension of the file in the user server 21 and the normal file transfer is not executed, the extension of the transfer file located in the provider server 20 is removed. Step 302; It is characterized in that it comprises a step 314 of informing the provider server 20 of the result of the file transfer after the file transfer of the user server 21 is all finished.

Hereinafter, with reference to the accompanying drawings will be described in detail a real-time program patch update system via HTTP (10) on the web according to the present invention.

3 is a flowchart showing the operation principle of the real-time file transfer system using the HTTP (10) of the present invention. HTTP (10) is an application layer protocol designed for the development of hypermedia information systems for distributed and collaborative environments, and is defined as a protocol used for the transmission of hypertext documents on the Web. The flowchart of FIG. 3 shows that the update file from the provider server 20 is transmitted to the user server 21 in real time using HTTP 10. Therefore, the flowchart of FIG. 3 does not use the conventional method of requesting the provider server 20 to transmit necessary update information and files to the provider server 20 on the Internet, and transmitting or downloading them via FTP. The server 20 automatically checks the current version information of the user server 21 and transmits the necessary update file to the user server 21.

The user server 21 initially installs a file necessary for real-time patching and updating of the file using the HTTP 10.

When the need for an update occurs, the provider server 20 executes a connection to the user server 21 through HTTP 10 to transmit such an update file to the user server 21 (311). In this case, the user server ( 21 is connected to the supplier server 20 through a program that is already installed through the authentication process to check whether the user is already registered from the supplier server 20. (322)

If the user is not authenticated, the above connection is terminated. If the authentication of the user server 21 is approved, the provider server 20 prepares a file URI (Uniform Resource Indentifier) to transmit the necessary update file. An attempt is made to connect to the file sender of the server 21 (323).

The file sender downloads the required update file from the provider server 20 through the HTTP 10 and completes the update to the user server 21 (313).

After the file transfer is completed, the connection is automatically terminated (314). If an error occurs during the transfer or the file transfer is not completed (302), the file transfer operation is repeated once again.

The Referer header field of the request message is used for the server and is used to indicate the address of the original document from which the request-URI information requested by the client is obtained. In other words, if a document called "A" is being viewed in a browser and a document "B" is requested using the link included in this document, the request-URI indicating the "B" document is a document called "A". As known from, the referrer in the request message requesting the "B" document becomes "A". This allows the server to establish a Back Link of previous documents that are linked to one document.

<Example of request message>

GET / index.html HTTP / 1.0

From: qkim@pec.etri.re.kr

Referer: http://pec.etri.re.kr/~qkim/qkim.html

User-Agent: Netscape 1.2

As described above, the patch and update system of the program using the HTTP (10) from the server 20 to the server 21 on the web of the program is periodically updated to the supplier of the program in the installation and update of various web programs It provides the ease of deployment and installation, which reduces the manpower and cost. It is possible to apply the latest updated program to the new environment for the program user and to use it in the new environment. However, there is an effect that can prevent program errors in advance.

Claims (1)

In a system for transmitting files for real-time patching and updating of programs installed on the server, Recognizing the need for an update, the provider server 20 system recognizes the version information of the user server 21 based on the referer, and transmits the data necessary for patching and updating to the user server 21 in real time. File transfer system using).