Server-Side XML to HTML Transformation via Uploaded Style Sheets
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Solution Overview
Problem
Network-based publication systems face challenges in efficiently responding to client requests and formatting responses, particularly for smaller businesses lacking the necessary bandwidth, hardware, and personnel to convert XML documents to HTML, and are vulnerable to error-ridden or malicious style sheets.
Innovation Solution
The system allows clients to upload presentation formats such as XSL or CSS to a network-based publication system's database, which executes client requests using these formats to generate server-side transformations and responses in HTML format, transmitted over HTTP, with built-in security measures to prevent malicious code and ensure efficient conversion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If clients transform XML documents to HTML locally using style sheets, then customization and control over presentation format is improved, but client system bandwidth, hardware resources, and personnel requirements increase
Solution Approach 1:
The patent introduces a server-side intermediary (the network-based publication system) that performs the XML to HTML transformation. Instead of clients directly transforming documents, the system acts as a mediator that receives XML requests, applies stored style sheets, and returns formatted HTML responses. This resolves the contradiction by maintaining presentation customization capabilities while eliminating the need for clients to have complex transformation infrastructure.
Solution Approach 2:
The system enables self-service by allowing clients to upload and store their own style sheets in the system's database. The system then automatically applies these client-specific style sheets to transform XML documents into HTML without requiring client-side processing. This allows clients to maintain control over their presentation formats while the system handles the actual transformation work.
2Adaptability or versatility
If clients use third-party applications to interact with network-based publication systems, then user experience and service expansion are improved, but security vulnerabilities from malicious style sheets increase
Solution Approach 1:
The patent implements preliminary validation and sanitization of style sheets when clients upload them to the system database. Before storing and applying these style sheets, the system performs security checks to detect and block malicious code. This preliminary action prevents security vulnerabilities from arising later when the style sheets are executed, thus resolving the contradiction between service expansion and security.
3Ease of operation
If the network-based publication system processes XML to HTML transformation centrally, then client system requirements are reduced, but server processing load and response time increase
Solution Approach 1:
The patent applies local quality by storing and applying client-specific style sheets that are tailored to individual clients' needs. Each client's style sheet is stored in the system database and applied only to that client's XML documents. This localized approach allows the server to efficiently process transformations without requiring all clients to use the same processing path, maintaining server efficiency while simplifying client operations.
Data Source
AI summary
Method and apparatus to facilitate access to a network-based publication system. In an embodiment, a user or third party affiliate of a network-based publication system uploads a style sheet or other presentation format file to a database in the network-based publication system. Thereafter, the user or third party affiliate sends a request to the network-based publication system, and the publication system uses one or more of the uploaded style sheets to format the response to be transmitted back to the third party affiliate.