"""
__author__ = "Oleg Broytman <phd@phdru.name>"
-__copyright__ = "Copyright (C) 2000-2014 PhiloSoft Design"
+__copyright__ = "Copyright (C) 2000-2024 PhiloSoft Design"
__license__ = "GNU GPL"
__all__ = ['robot_base', 'get_error']
-import sys
-import time, urllib
from base64 import b64encode
-from urlparse import urljoin
+from urllib.parse import urlsplit, urljoin
+import sys
+import socket
+import time
-from m_lib.net.www.util import parse_time
from m_lib.md5wrapper import md5wrapper
+from m_lib.net.www.util import parse_time
from bkmk_objects import Robot
from parse_html import parse_html
+# Fake headers to pretend this is a real browser
+_user_agent = "Mozilla/5.0 (X11; U; Linux 2.6 i686; en)"
+" Gecko/20001221 Firefox/2.0.0"
+_x_user_agent = "bookmarks_db (Python %d.%d.%d)" % sys.version_info[:3]
+
+request_headers = {
+ 'Accept': '*/*',
+ 'Accept-Language': 'ru,en',
+ 'Cache-Control': 'max-age=300',
+ 'Connection': 'close',
+ 'Referer': '/',
+ 'User-Agent': _user_agent,
+ 'X-User-Agent': _x_user_agent,
+}
+
+
reloc_dict = {
- 301: "perm.",
+ 301: "perm1.",
302: "temp2.",
303: "temp3.",
307: "temp7.",
+ 308: "temp8.",
"html": "html"
}
-def get_error(msg):
- if isinstance(msg, str):
- return msg
+def get_error(e):
+ if isinstance(e, str):
+ return e
- else:
- s = []
- for i in msg:
- s.append("'%s'" % str(i).replace('\n', "\\n"))
- return "(%s)" % ' '.join(s)
+ else:
+ s = []
+ for i in e:
+ s.append("'%s'" % str(i).replace('\n', "\\n"))
+ return "(%s)" % ' '.join(s)
-icons = {} # Icon cache; maps URL to a tuple (content type, data)
- # or None if there is no icon.
+# Icon cache; maps URL to a tuple (content type, data)
+# or None if there is no icon.
+icons = {}
+
class robot_base(Robot):
- def check_url(self, bookmark):
- try:
- self.start = int(time.time())
- bookmark.icon = None
+ timeout = 60
- url_type, url_rest = urllib.splittype(bookmark.href)
- url_host, url_path = urllib.splithost(url_rest)
- url_path, url_tag = urllib.splittag(url_path)
+ def __init__(self, *args, **kw):
+ Robot.__init__(self, *args, **kw)
+ socket.setdefaulttimeout(int(self.timeout))
- url = "%s://%s%s" % (url_type, url_host, url_path)
- error, redirect_code, redirect_to, headers, content = self.get(bookmark, url, True)
+ def check_url(self, bookmark):
+ try:
+ self.start = int(time.time())
+ bookmark.icon = None
- if error:
- bookmark.error = error
- return 1
+ split_results = urlsplit(bookmark.href)
+ url_type, netloc, url_path, query, url_tag = split_results
+ url_host = split_results.hostname
- if redirect_code:
- self.set_redirect(bookmark, redirect_code, redirect_to)
- return 1
+ url = "%s://%s%s" % (url_type, url_host, url_path)
+ error, redirect_code, redirect_to, headers, content = \
+ self.get(bookmark, url, True)
- size = 0
- last_modified = None
+ if error:
+ bookmark.error = error
+ return 1
- if headers:
- try:
- size = headers["Content-Length"]
- except KeyError:
- size = len(content)
+ if redirect_code:
+ self.set_redirect(bookmark, redirect_code, redirect_to)
+ return 1
- try:
- last_modified = headers["Last-Modified"]
- except KeyError:
- pass
-
- if last_modified:
- last_modified = parse_time(last_modified)
- else:
- size = len(content)
+ size = 0
+ last_modified = None
- if last_modified:
- last_modified = str(int(last_modified))
- else:
- last_modified = bookmark.last_visit
+ if headers:
+ try:
+ size = headers["Content-Length"]
+ except KeyError:
+ pass
- bookmark.size = size
- bookmark.last_modified = last_modified
+ try:
+ last_modified = headers["Last-Modified"]
+ except KeyError:
+ pass
- md5 = md5wrapper()
- if url_type == "ftp": # Pass welcome message through MD5
- md5.update(self.get_ftp_welcome())
+ if last_modified:
+ last_modified = parse_time(last_modified)
- md5.update(content)
- bookmark.md5 = str(md5)
+ if not size: # Could be None from headers
+ size = len(content)
- if headers:
- try:
- content_type = headers["Content-Type"]
- self.log(" Content-Type: %s" % content_type)
- try:
- # extract charset from "text/html; foo; charset=UTF-8, bar; baz;"
- content_type, charset = content_type.split(';', 1)
- content_type = content_type.strip()
- charset = charset.split('=')[1].strip().split(',')[0]
- self.log(" HTTP charset : %s" % charset)
- except (ValueError, IndexError):
- charset = None
- self.log(" no charset in Content-Type header")
- for ctype in ("text/html", "application/xhtml+xml"):
- if content_type.startswith(ctype):
- html = True
- break
- else:
- html = False
- if html:
- parser = parse_html(content, charset, self.log)
- if parser:
- bookmark.real_title = parser.title
- icon = parser.icon
- else:
- icon = None
- if not icon:
- icon = "/favicon.ico"
- icon_url = urljoin("%s://%s%s" % (url_type, url_host, url_path), icon)
- self.log(" looking for icon at: %s" % icon_url)
- if icon_url in icons:
- if icons[icon_url]:
- bookmark.icon_href = icon_url
- content_type, bookmark.icon = icons[icon_url]
- self.log(" cached icon: %s" % content_type)
- else:
- self.log(" cached icon: no icon")
- else:
- try:
- _icon_url = icon_url
- for i in range(8):
- error, icon_redirect_code, icon_redirect_to, \
- icon_headers, icon_data = \
- self.get(bookmark, _icon_url)
- if icon_redirect_code:
- _icon_url = icon_redirect_to
- self.log(" redirect to : %s" % _icon_url)
- else:
- if icon_data is None:
- raise IOError("No icon")
- break
- else:
- raise IOError("Too many redirects")
- except:
- etype, emsg, tb = sys.exc_info()
- self.log(" no icon : %s %s" % (etype, emsg))
- etype = emsg = tb = None
- icons[icon_url] = None
- else:
- content_type = icon_headers["Content-Type"]
- if content_type.startswith("application/") \
- or content_type.startswith("image/") \
- or content_type.startswith("text/plain"):
- bookmark.icon_href = icon_url
- self.log(" got icon : %s" % content_type)
- if content_type.startswith("application/") \
- or content_type.startswith("text/plain"):
- self.log(" non-image content type, assume x-icon")
- content_type = 'image/x-icon'
- bookmark.icon = "data:%s;base64,%s" % (content_type, b64encode(icon_data))
- icons[icon_url] = (content_type, bookmark.icon)
+ if last_modified:
+ last_modified = str(int(last_modified))
+ else:
+ last_modified = bookmark.last_visit
+
+ bookmark.size = size
+ bookmark.last_modified = last_modified
+
+ charset = None
+ if headers:
+ try:
+ content_type = headers["Content-Type"]
+ self.log(" Content-Type : %s" % content_type)
+ if content_type is None:
+ if b'html' in content.lower():
+ content_type = 'text/html'
else:
- self.log(" no icon : bad content type '%s'" % content_type)
- icons[icon_url] = None
- if parser and parser.refresh:
- refresh = parser.refresh
- try:
- url = refresh.split('=', 1)[1]
- except IndexError:
- url = "self"
- try:
- timeout = float(refresh.split(';')[0])
- except (IndexError, ValueError):
- self.set_redirect(bookmark, "html", "Bad redirect to %s (%s)" % (url, refresh))
- else:
+ content_type = 'text/plain'
+ self.log(" Set Content-Type to: %s"
+ % content_type)
+ try:
+ # extract charset from
+ # "text/html; charset=UTF-8, foo; bar"
+ content_type, charset = content_type.split(';', 1)
+ content_type = content_type.strip()
+ charset = charset.split('=')[1].strip().split(',')[0]
+ self.log(" HTTP charset : %s" % charset)
+ except (ValueError, IndexError):
+ charset = None
+ self.log(" no charset in Content-Type header")
+ is_html = False
+ for ctype in ("text/html", "application/xhtml+xml"):
+ if content_type.startswith(ctype):
+ is_html = True
+ break
+ content_stripped = content.strip()
+ if content_stripped and charset:
try:
- timeout = int(refresh.split(';')[0])
- except ValueError:
- pass # float timeout
- self.set_redirect(bookmark, "html", "%s (%s sec)" % (url, timeout))
-
- except KeyError, key:
- self.log(" no header: %s" % key)
-
- except EOFError:
- bookmark.error = "Unexpected EOF (FTP server closed connection)"
- self.log(' EOF: %s' % bookmark.error)
-
- except KeyboardInterrupt:
- self.log("Keyboard interrupt (^C)")
- return 0
-
- except:
- import traceback
- traceback.print_exc()
- bookmark.error = "Exception!"
- self.log(' Exception: %s' % bookmark.error)
-
- finally:
- self.finish_check_url(bookmark)
-
- # Tested
- return 1
-
- def set_redirect(self, bookmark, errcode, newurl):
- bookmark.moved = "(%s) to %s" % (reloc_dict[errcode], newurl)
- self.log(' Moved: %s' % bookmark.moved)
-
- def finish_check_url(self, bookmark):
- start = self.start
- bookmark.last_tested = str(start)
- now = int(time.time())
- bookmark.test_time = str(now - start)
+ content_stripped = content_stripped.decode(
+ charset, 'replace')
+ except LookupError:
+ charset = None
+ self.log(" unknown charset "
+ "in Content-Type header")
+ if content_stripped and is_html:
+ parser = parse_html(
+ content_stripped, charset, self.log)
+ if charset:
+ bookmark.charset = charset
+ elif parser and parser.meta_charset:
+ bookmark.charset = parser.meta_charset
+ if parser:
+ bookmark.real_title = parser.title
+ icon = parser.icon
+ else:
+ icon = None
+ if not icon:
+ icon = "/favicon.ico"
+ icon_url = urljoin(
+ "%s://%s%s" % (url_type, url_host, url_path), icon)
+ self.log(" looking for icon at: %s" % icon_url)
+ if icon_url in icons:
+ if icons[icon_url]:
+ bookmark.icon_href = icon_url
+ content_type, bookmark.icon = icons[icon_url]
+ self.log(" cached icon : %s"
+ % content_type)
+ else:
+ self.log(" cached icon : no icon")
+ elif icon_url.startswith('data:'):
+ content_type, icon_data = \
+ icon_url[len('data:'):].split(',', 1)
+ bookmark.icon_href = bookmark.icon = icon_url
+ self.log(" got data icon : %s" % content_type)
+ icons[icon_url] = (content_type, icon_url)
+ else:
+ try:
+ _icon_url = icon_url
+ for i in range(8):
+ error, icon_redirect_code, \
+ icon_redirect_to, icon_headers, \
+ icon_data = \
+ self.get(bookmark, _icon_url)
+ if icon_redirect_code:
+ _icon_url = icon_redirect_to
+ self.log(" redirect to : %s"
+ % _icon_url)
+ else:
+ if icon_data is None:
+ raise IOError("No icon")
+ break
+ else:
+ raise IOError("Too many redirects")
+ except:
+ etype, emsg, _ = sys.exc_info()
+ self.log(" no icon : %s %s"
+ % (etype, emsg))
+ etype = emsg = _ = None
+ icons[icon_url] = None
+ else:
+ content_type = icon_headers["Content-Type"]
+ if content_type and (
+ content_type.startswith("application/")
+ or content_type.startswith("image/")
+ or content_type.startswith("text/plain")
+ ):
+ bookmark.icon_href = icon_url
+ self.log(" got icon : %s"
+ % content_type)
+ if (
+ content_type.startswith("application/")
+ or content_type.startswith(
+ "text/plain")
+ ):
+ self.log(" non-image content type,"
+ " assume x-icon")
+ content_type = 'image/x-icon'
+ if not isinstance(icon_data, bytes):
+ icon_data = icon_data.encode('latin1')
+ bookmark.icon = "data:%s;base64,%s" \
+ % (content_type, b64encode(icon_data))
+ icons[icon_url] = (content_type,
+ bookmark.icon
+ )
+ else:
+ self.log(" no icon : "
+ "bad content type '%s'"
+ % content_type
+ )
+ icons[icon_url] = None
+ if parser and parser.refresh:
+ refresh = parser.refresh
+ try:
+ url = refresh.split('=', 1)[1]
+ except IndexError:
+ url = "self"
+ try:
+ timeout = float(refresh.split(';')[0])
+ except (IndexError, ValueError):
+ self.set_redirect(bookmark, "html",
+ "Bad redirect to %s (%s)"
+ % (url, refresh)
+ )
+ else:
+ try:
+ timeout = int(refresh.split(';')[0])
+ except ValueError:
+ pass # float timeout
+ self.set_redirect(bookmark, "html",
+ "%s (%s sec)"
+ % (url, timeout)
+ )
+ elif charset:
+ bookmark.charset = charset
+
+ if not content_stripped:
+ self.log(" empty response, no content")
+ if not is_html:
+ self.log(" not html")
+ except KeyError as key:
+ self.log(" no header: %s" % key)
+
+ md5 = md5wrapper()
+ if url_type == "ftp": # Pass welcome message through MD5
+ ftp_welcome = self.get_ftp_welcome()
+ if not isinstance(ftp_welcome, bytes):
+ ftp_welcome = ftp_welcome.encode(charset or 'utf-8')
+ md5.update(ftp_welcome)
+
+ if isinstance(content, bytes):
+ md5.update(content)
+ else:
+ md5.update(content.encode(charset or 'utf-8'))
+ bookmark.md5 = str(md5)
+
+ except EOFError:
+ bookmark.error = "Unexpected EOF (FTP server closed connection)"
+ self.log(' EOF: %s' % bookmark.error)
+
+ except KeyboardInterrupt:
+ self.log("Keyboard interrupt (^C)")
+ return 0
+
+ except socket.error as e:
+ bookmark.error = get_error(e)
+ self.log(bookmark.error)
+
+ except:
+ import traceback
+ traceback.print_exc()
+ bookmark.error = "Exception!"
+ self.log(' Exception: %s' % bookmark.error)
+
+ finally:
+ self.finish_check_url(bookmark)
+
+ # Tested
+ return 1
+
+ def set_redirect(self, bookmark, errcode, newurl):
+ bookmark.moved = moved = "(%s) to %s" % (reloc_dict[errcode], newurl)
+ try:
+ moved.encode('ascii')
+ except UnicodeEncodeError:
+ try:
+ moved = moved.encode(bookmark.charset)
+ except (LookupError, TypeError, UnicodeEncodeError):
+ moved = moved.encode('utf-8')
+ self.log(' Moved: %s' % moved)
+
+ def finish_check_url(self, bookmark):
+ start = self.start
+ bookmark.last_tested = str(start)
+ now = int(time.time())
+ bookmark.test_time = str(now - start)