Implement metadata for RestrictedForward, set by /auth/api/forward endpoint when returning the app. Use this to implement support for time-based reauth requirement.

2025-12-02 23:39:31 +00:00
parent aed48de38e
commit 10ce0126b0
8 changed files with 220 additions and 32 deletions
@@ -0,0 +1,47 @@
+"""Utility functions for HTML manipulation."""
+
+import re
+
+
+def patch_html_data_attrs(html: bytes, **data_attrs: str) -> bytes:
+    """Patch HTML by adding data attributes to the <html> tag.
+
+    If an <html> tag exists, adds data attributes to it.
+    If no <html> tag exists, prepends one with the data attributes.
+
+    Args:
+        html: The HTML content as bytes
+        **data_attrs: Key-value pairs for data attributes (e.g., mode='reauth')
+
+    Returns:
+        Modified HTML as bytes
+
+    Examples:
+        >>> patch_html_data_attrs(b'<html><body>test</body></html>', mode='reauth')
+        b'<html data-mode="reauth"><body>test</body></html>'
+
+        >>> patch_html_data_attrs(b'<body>test</body>', mode='reauth')
+        b'<html data-mode="reauth"><body>test</body>'
+    """
+    if not data_attrs:
+        return html
+
+    html_str = html.decode("utf-8")
+
+    # Build the data attributes string
+    attrs_str = " ".join(f'data-{key}="{value}"' for key, value in data_attrs.items())
+
+    # Check if there's an <html> tag (case-insensitive, may have existing attributes)
+    html_tag_pattern = re.compile(r"<html([^>]*)>", re.IGNORECASE)
+    match = html_tag_pattern.search(html_str)
+
+    if match:
+        # Insert data attributes into existing <html> tag
+        existing_attrs = match.group(1)
+        new_tag = f"<html{existing_attrs} {attrs_str}>"
+        html_str = html_tag_pattern.sub(new_tag, html_str, count=1)
+    else:
+        # Prepend <html> tag with data attributes
+        html_str = f"<html {attrs_str}>" + html_str
+
+    return html_str.encode("utf-8")