Upload Interface Identification via Request Packet Content Analysis
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Solution Overview
Problem
Current methods for identifying upload interfaces are incomplete, leading to a high detection missing probability and reduced comprehensiveness, as they rely solely on detecting the 'input type="file' label, which misses other forms of upload interfaces.
Innovation Solution
An upload interface identification method that analyzes request packets for specific content features indicative of upload requests, such as those used in HTTP protocols, to accurately determine the presence and address of upload interfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the upload interface is identified by detecting the 'input type="file"' label in the page, then the identification method is simple, but the detection missing probability increases and comprehensiveness decreases
Solution Approach 1:
Instead of detecting upload interfaces by looking for specific HTML labels in the page structure, the patent inverts the approach by analyzing request packets sent from the client to the server. It identifies upload interfaces by detecting characteristic content features in the request packets (such as file upload protocols, boundary markers, and upload-specific headers), thereby discovering upload interfaces that may not have standard HTML labels.
Solution Approach 2:
The patent introduces request packet analysis as an intermediary method between the client and server to identify upload interfaces. By examining the communication content (request packets) that passes through the system, the method can detect upload interfaces without directly parsing the page structure, thus overcoming the limitations of label-based detection.
2Ease of manufacture
If the upload interface identification relies solely on 'input type="file"' label detection, then the implementation is straightforward, but the comprehensiveness of identification is reduced
Solution Approach 1:
The patent creates a universal identification method that works across multiple upload interface forms. By analyzing request packet content features rather than relying on specific HTML labels, the method can identify various types of upload interfaces including those with 'input type="file"', those without labels, those using JavaScript-based uploads, and other alternative upload mechanisms, thereby achieving multi-functionality and broad coverage.
Solution Approach 2:
The patent changes the detection parameter from HTML structure elements (labels) to communication protocol elements (request packet content features). This parameter change allows the identification method to adapt to different upload interface implementations, as request packets reveal the actual upload behavior regardless of how the interface is presented in the HTML.
Data Source
AI summary
Embodiments of this application provide an upload interface identification method performed at an identification server. The identification server obtains a to-be-identified request packet that is contained in request packets from a page client to a page server. After parsing a content feature of the to-be-identified request packet, the server determines whether the content feature corresponds to a predefined content feature of an upload request packet authorized by the page server. The server then determines that an interface address indicated by the upload request packet corresponds to an upload interface of the to-be-identified request packet if the content feature corresponds to the set content feature of the upload request packet.