### What problem does this PR solve?
The POST /upload_info?url=<url> endpoint accepted a user-supplied URL
and passed it directly to AsyncWebCrawler without any validation. There
were no restrictions on URL scheme, destination hostname, or resolved IP
address. This allowed any authenticated user to instruct the server to
make outbound HTTP requests to internal infrastructure — including RFC
1918 private networks, loopback addresses, and cloud metadata services
such as http://169.254.169.254 — effectively using the server as a proxy
for internal network reconnaissance or credential theft.
This PR adds an SSRF guard (_validate_url_for_crawl) that runs before
any crawl is initiated. It enforces an allowlist of safe schemes
(http/https), resolves the hostname at validation time, and rejects any
URL whose resolved IP falls within a private or reserved network range.
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
### What problem does this PR solve?
Fix stored XSS via HTML file upload and inline rendering in
/v1/file/get/<id>
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
### What problem does this PR solve?
Previously, we added support for previewing PPT and PPTX files in the
backend. Now, we are adding it to the frontend, so when the slides in
the chat interface are referenced, they will no longer be blank.
### Type of change
- Bug Fix (non-breaking change which fixes an issue)
Otherwise, slide files cannot be opened in Chat module
### What problem does this PR solve?
Backend Reason (API): In the api/utils/web_utils.py file of the backend,
the CONTENT_TYPE_MAP dictionary is missing ppt and pptx.
MIME type mapping. This means that when the frontend requests a PPTX
file, the backend cannot correctly inform the browser that it is a PPTX
file, resulting in the file being displayed incorrectly.
Type identification error.
### Type of change
- Bug Fix (non-breaking change which fixes an issue)
---------
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
### What problem does this PR solve?
Feat: add forgot password reset, solve #8547
### Type of change
- [X] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Add SMTP support for user invitation emails
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Add MCP dashboard functionalities list_tools and test_tool.
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Add MCP server dashboard operations.
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Fix potential SSRF attack vulnerability
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
Co-authored-by: liuhua <10215101452@stu.ecun.edu.cn>
### What problem does this PR solve?
Knowledge base management supports crawling information from web pages
and generating PDF documents
### Type of change
- [x] New Feature (Support document from web pages)
