Process http error 307 as a temporary redirect.

[bookmarks_db.git] / Robots / parse_html_beautifulsoup.py

diff --git a/Robots/parse_html_beautifulsoup.py b/Robots/parse_html_beautifulsoup.py
index d73e4c313a62a67570eb190dac14d5198499ef1b..f5e03b52e96808d7db6a21efd656d0541d3ed976 100644 (file)
--- a/Robots/parse_html_beautifulsoup.py
+++ b/Robots/parse_html_beautifulsoup.py
@@ -1,7 +1,7 @@
 """
    HTML Parser using BeautifulSoup
 
-   Written by BroytMann. Copyright (C) 2007 PhiloSoft Design
+   Written by BroytMann. Copyright (C) 2007, 2008 PhiloSoft Design
 """
 
 import re
@@ -39,7 +39,7 @@ class BadDeclParser(BeautifulSoup):
              except SGMLParseError:
                  # Could not parse the DOCTYPE declaration
                  # Try to just skip the actual declaration
-                 match = re.search(r'<!DOCTYPE([^>]*?)>', self.rawdata[i:], re.MULTILINE)
+                 match = re.search(r'<!DOCTYPE([^>]*?)>', self.rawdata[i:], re.MULTILINE|re.IGNORECASE)
                  if match:
                      toHandle = self.rawdata[i:match.end()]
                  else:
@@ -49,34 +49,83 @@ class BadDeclParser(BeautifulSoup):
          return j
 
 
-def parse_html(filename, charset=None):
+def _parse_html(filename, charset):
    infile = open(filename, 'r')
    try:
-      root = BadDeclParser(infile, fromEncoding=charset)
+      return BadDeclParser(infile, fromEncoding=charset)
    except TypeError:
       return None
    finally:
       infile.close()
 
-   _charset = root.originalEncoding
-   try:
-      title = root.html.head.title.string.encode(_charset)
-   except AttributeError:
+def parse_html(filename, charset=None, log=None):
+   root = _parse_html(filename, charset)
+   if root is None:
       return None
 
-   meta = root.html.head.find(_find_refresh, recursive=False)
+   _charset = root.originalEncoding
+   if _charset in ("ISO-8859-2", "windows-1252", "MacCyrillic"): # Replace default
+      _charset = DEFAULT_CHARSET
+      root = _parse_html(filename, _charset)
+      if root is None:
+         return None
+
+   html = root.html
+   if html is None:
+      html = root
+
+   head = html.head
+   if head is None:
+      head = html # Some sites put TITLE in HTML without HEAD
+
+   title = head.title
+   if (title is None) and (html is not head):
+      # Some sites put TITLE in HTML outside of HEAD
+      title = html.title
+
+   if title is None:
+      # Lookup TITLE in the root
+      title = root.title
+
+   if title is not None:
+      if title.string:
+         title = title.string.encode(_charset)
+      else:
+         parts = []
+         for part in title:
+            if not isinstance(part, basestring):
+               part = unicode(part)
+            parts.append(part.strip())
+         title = ''.join(parts).encode(_charset)
+
+   meta = head.find(_find_contenttype, recursive=False)
+   if meta:
+      try:
+         __charset = meta.get("content").lower().split('charset=')[1].split(';')[0]
+      except IndexError: # No charset in the META Content-Type
+         meta_charset = False
+      else:
+         meta_charset = _charset == __charset
+   else:
+      meta_charset = False
+
+   meta = head.find(_find_refresh, recursive=False)
    if meta:
       refresh = meta.get("content")
    else:
       refresh = None
 
-   meta = root.html.head.find(_find_icon, recursive=False)
+   meta = head.find(_find_icon, recursive=False)
    if meta:
       icon = meta.get("href")
    else:
       icon = None
 
-   return BSoupParser(_charset, _charset != charset, title, refresh, icon)
+   return BSoupParser(_charset, meta_charset, title, refresh, icon)
+
+def _find_contenttype(Tag):
+   return (Tag.name == "meta") and \
+      (Tag.get("http-equiv", '').lower() == "content-type")
 
 def _find_refresh(Tag):
    return (Tag.name == "meta") and \