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A way to parse http chunked encoded data

A technology of encoding data and data, which is applied in the field of network communication, can solve the problems of high processing delay and large memory usage, and achieve the effect of reducing memory usage, processing delay and memory copy

Active Publication Date: 2017-02-15
ZHENGZHOU SEANET TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to overcome the existing HTTP chunked encoding off-line parsing method, which has the defects of large memory usage and high processing delay, thereby providing a method capable of quickly parsing HTTP chunked encoding

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  • A way to parse http chunked encoded data
  • A way to parse http chunked encoded data
  • A way to parse http chunked encoded data

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Embodiment Construction

[0034] Before describing the present invention in detail, a unified description will be given to the related concepts involved in the present invention.

[0035] chunk-size field: It is the same as the chunk-size field described in RFC2616, and also includes carriage return and line feed characters (CRLF) before and after this field.

[0036] chunk-data field: the same as the chunk-data field described in RFC2616.

[0037] The present invention will be further described now in conjunction with accompanying drawing.

[0038] The method of the present invention can realize the fast parsing of HTTP chunked encoded data, refer to figure 1 , the method of the present invention comprises the following steps:

[0039] Step 1), locate the starting position of any chunk in the received HTTP message;

[0040] Step 2), predicting the length of the chunk-size field in the chunk according to the current parsing status; wherein, the parsing status refers to the degree of completion of th...

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Abstract

The invention relates to a method for analyzing HTTP chunked code data. The method for analyzing the HTTP chunked code data comprises the steps that the starting position of any chunk in a received HTTP message is located; according to a current analysis state, the length of a chunk-size field in the chunk is predicated; according to the predicated length obtained in the last step, chunk-size data with the corresponding length are read and cached, all the current cached chunk-size data are analyzed, and according to an analysis result, whether the whole chunk-size field is read or not is judged, if yes, the next step is executed, and if not, based on the analysis state of all the current cached chunk-size data, the step of length predication is executed again; according to the value of the whole chunk-size field, data in chunk-data are read.

Description

technical field [0001] The invention relates to the field of network communication, in particular to a method for analyzing HTTP chunked coded data. Background technique [0002] The message format of the HTTP protocol includes a message header and a message body. The message header part defines some attribute fields, which provide important information to the receiver of the message. Among them, the Content-Length attribute field indicates the length of the message body, which is beneficial to the programming realization of the data receiving process. However, for some dynamically generated data, the message generator may not be able to know the total length of the message body immediately, so the value of the Content-Length field cannot be calculated in time. Using chunked encoding can avoid this problem. Chunked is a transmission encoding method of the HTTP / 1.1 protocol. This transmission encoding method divides the data to be transmitted into multiple parts, and the m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04L1/00
Inventor 陈君李明哲李军陈晓
Owner ZHENGZHOU SEANET TECH CO LTD
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