--- /dev/null
+"""PyPI and direct package downloading"""
+import sys, os.path, re, urlparse, urllib2, shutil, random, socket, cStringIO
+import httplib, urllib
+from pkg_resources import *
+from distutils import log
+from distutils.errors import DistutilsError
+try:
+ from hashlib import md5
+except ImportError:
+ from md5 import md5
+from fnmatch import translate
+EGG_FRAGMENT = re.compile(r'^egg=([-A-Za-z0-9_.]+)$')
+HREF = re.compile("""href\\s*=\\s*['"]?([^'"> ]+)""", re.I)
+# this is here to fix emacs' cruddy broken syntax highlighting
+PYPI_MD5 = re.compile(
+ '<a href="([^"#]+)">([^<]+)</a>\n\s+\\(<a (?:title="MD5 hash"\n\s+)'
+ 'href="[^?]+\?:action=show_md5&digest=([0-9a-f]{32})">md5</a>\\)'
+)
+URL_SCHEME = re.compile('([-+.a-z0-9]{2,}):',re.I).match
+EXTENSIONS = ".tar.gz .tar.bz2 .tar .zip .tgz".split()
+
+def is_local(url_or_fname):
+ """ Return True if url_or_fname is a "file:" url or if it is a schemaless thing (which is presumably a filename). """
+ mo = URL_SCHEME(url_or_fname)
+ return not (mo and mo.group(1).lower()!='file')
+
+def url_or_fname_to_fname(url_or_fname):
+ """ Assert that is_local(url_or_fname) then if it is a "file:" url, parse it and run url2pathname on it, else just return it. """
+ assert is_local(url_or_fname)
+
+ mo = URL_SCHEME(url_or_fname)
+ if mo:
+ return urllib2.url2pathname(urlparse.urlparse(url)[2])
+ else:
+ return url_or_fname
+
+__all__ = [
+ 'PackageIndex', 'distros_for_url', 'parse_bdist_wininst',
+ 'interpret_distro_name',
+]
+
+def parse_bdist_wininst(name):
+ """Return (base,pyversion) or (None,None) for possible .exe name"""
+
+ lower = name.lower()
+ base, py_ver = None, None
+
+ if lower.endswith('.exe'):
+ if lower.endswith('.win32.exe'):
+ base = name[:-10]
+ elif lower.startswith('.win32-py',-16):
+ py_ver = name[-7:-4]
+ base = name[:-16]
+
+ return base,py_ver
+
+def egg_info_for_url(url):
+ scheme, server, path, parameters, query, fragment = urlparse.urlparse(url)
+ base = urllib2.unquote(path.split('/')[-1])
+ if server=='sourceforge.net' and base=='download': # XXX Yuck
+ base = urllib2.unquote(path.split('/')[-2])
+ if '#' in base: base, fragment = base.split('#',1)
+ return base,fragment
+
+def distros_for_url(url, metadata=None):
+ """Yield egg or source distribution objects that might be found at a URL"""
+ base, fragment = egg_info_for_url(url)
+ for dist in distros_for_location(url, base, metadata): yield dist
+ if fragment:
+ match = EGG_FRAGMENT.match(fragment)
+ if match:
+ for dist in interpret_distro_name(
+ url, match.group(1), metadata, precedence = CHECKOUT_DIST
+ ):
+ yield dist
+
+def distros_for_location(location, basename, metadata=None):
+ """Yield egg or source distribution objects based on basename"""
+ if basename.endswith('.egg.zip'):
+ basename = basename[:-4] # strip the .zip
+ if basename.endswith('.egg') and '-' in basename:
+ # only one, unambiguous interpretation
+ return [Distribution.from_location(location, basename, metadata)]
+ if basename.endswith('.exe'):
+ win_base, py_ver = parse_bdist_wininst(basename)
+ if win_base is not None:
+ return interpret_distro_name(
+ location, win_base, metadata, py_ver, BINARY_DIST, "win32"
+ )
+ # Try source distro extensions (.zip, .tgz, etc.)
+ #
+ for ext in EXTENSIONS:
+ if basename.endswith(ext):
+ basename = basename[:-len(ext)]
+ return interpret_distro_name(location, basename, metadata)
+ return [] # no extension matched
+
+def distros_for_filename(filename, metadata=None):
+ """Yield possible egg or source distribution objects based on a filename"""
+ return distros_for_location(
+ normalize_path(filename), os.path.basename(filename), metadata
+ )
+
+
+def interpret_distro_name(location, basename, metadata,
+ py_version=None, precedence=SOURCE_DIST, platform=None
+):
+ """Generate alternative interpretations of a source distro name
+
+ Note: if `location` is a filesystem filename, you should call
+ ``pkg_resources.normalize_path()`` on it before passing it to this
+ routine!
+ """
+ # Generate alternative interpretations of a source distro name
+ # Because some packages are ambiguous as to name/versions split
+ # e.g. "adns-python-1.1.0", "egenix-mx-commercial", etc.
+ # So, we generate each possible interepretation (e.g. "adns, python-1.1.0"
+ # "adns-python, 1.1.0", and "adns-python-1.1.0, no version"). In practice,
+ # the spurious interpretations should be ignored, because in the event
+ # there's also an "adns" package, the spurious "python-1.1.0" version will
+ # compare lower than any numeric version number, and is therefore unlikely
+ # to match a request for it. It's still a potential problem, though, and
+ # in the long run PyPI and the distutils should go for "safe" names and
+ # versions in distribution archive names (sdist and bdist).
+
+ parts = basename.split('-')
+ if not py_version:
+ for i,p in enumerate(parts[2:]):
+ if len(p)==5 and p.startswith('py2.'):
+ return # It's a bdist_dumb, not an sdist -- bail out
+
+ for p in range(1,len(parts)+1):
+ yield Distribution(
+ location, metadata, '-'.join(parts[:p]), '-'.join(parts[p:]),
+ py_version=py_version, precedence = precedence,
+ platform = platform
+ )
+
+REL = re.compile("""<([^>]*\srel\s*=\s*['"]?([^'">]+)[^>]*)>""", re.I)
+# this line is here to fix emacs' cruddy broken syntax highlighting
+
+def find_external_links(url, page):
+ """Find rel="homepage" and rel="download" links in `page`, yielding URLs"""
+
+ for match in REL.finditer(page):
+ tag, rel = match.groups()
+ rels = map(str.strip, rel.lower().split(','))
+ if 'homepage' in rels or 'download' in rels:
+ for match in HREF.finditer(tag):
+ yield urlparse.urljoin(url, htmldecode(match.group(1)))
+
+ for tag in ("<th>Home Page", "<th>Download URL"):
+ pos = page.find(tag)
+ if pos!=-1:
+ match = HREF.search(page,pos)
+ if match:
+ yield urlparse.urljoin(url, htmldecode(match.group(1)))
+
+user_agent = "Python-urllib/%s setuptools/%s" % (
+ urllib2.__version__, require('setuptools')[0].version
+)
+
+
+class PackageIndex(Environment):
+ """A distribution index that scans web pages for download URLs"""
+
+ def __init__(self, index_url="http://pypi.python.org/simple", hosts=('*',),
+ *args, **kw
+ ):
+ Environment.__init__(self,*args,**kw)
+ self.index_url = index_url + "/"[:not index_url.endswith('/')]
+ self.scanned_urls = {}
+ self.fetched_urls = {}
+ self.package_pages = {}
+ self.allows = re.compile('|'.join(map(translate,hosts))).match
+ self.to_scan = []
+
+
+
+ def process_url(self, url, retrieve=False):
+ """Evaluate a URL as a possible download, and maybe retrieve it"""
+ if url in self.scanned_urls and not retrieve:
+ return
+ self.scanned_urls[url] = True
+ if not URL_SCHEME(url):
+ self.process_filename(url)
+ return
+ else:
+ dists = list(distros_for_url(url))
+ if dists:
+ if not self.url_ok(url):
+ return
+ self.debug("Found link: %s", url)
+
+ if dists or not retrieve or url in self.fetched_urls:
+ map(self.add, dists)
+ return # don't need the actual page
+
+ if not self.url_ok(url):
+ self.fetched_urls[url] = True
+ return
+
+ self.info("Reading %s", url)
+ self.fetched_urls[url] = True # prevent multiple fetch attempts
+ f = self.open_url(url, "Download error: %s -- Some packages may not be found!")
+ if f is None: return
+ self.fetched_urls[f.url] = True
+ if 'html' not in f.headers.get('content-type', '').lower():
+ f.close() # not html, we can't process it
+ return
+
+ base = f.url # handle redirects
+ page = f.read()
+ f.close()
+ if url.startswith(self.index_url) and getattr(f,'code',None)!=404:
+ page = self.process_index(url, page)
+ for match in HREF.finditer(page):
+ link = urlparse.urljoin(base, htmldecode(match.group(1)))
+ self.process_url(link)
+
+ def process_filename(self, fn, nested=False):
+ # process filenames or directories
+ if not os.path.exists(fn):
+ self.warn("Not found: %s", fn)
+ return
+
+ if os.path.isdir(fn) and not nested:
+ path = os.path.realpath(fn)
+ for item in os.listdir(path):
+ self.process_filename(os.path.join(path,item), True)
+
+ dists = distros_for_filename(fn)
+ if dists:
+ self.debug("Found: %s", fn)
+ map(self.add, dists)
+
+ def url_ok(self, url, fatal=False):
+ s = URL_SCHEME(url)
+ if (s and s.group(1).lower()=='file') or self.allows(urlparse.urlparse(url)[1]):
+ return True
+ msg = "\nLink to % s ***BLOCKED*** by --allow-hosts\n"
+ if fatal:
+ raise DistutilsError(msg % url)
+ else:
+ self.warn(msg, url)
+
+ def scan_egg_links(self, search_path):
+ for item in search_path:
+ if os.path.isdir(item):
+ for entry in os.listdir(item):
+ if entry.endswith('.egg-link'):
+ self.scan_egg_link(item, entry)
+
+ def scan_egg_link(self, path, entry):
+ lines = filter(None, map(str.strip, file(os.path.join(path, entry))))
+ if len(lines)==2:
+ for dist in find_distributions(os.path.join(path, lines[0])):
+ dist.location = os.path.join(path, *lines)
+ dist.precedence = SOURCE_DIST
+ self.add(dist)
+
+ def process_index(self,url,page):
+ """Process the contents of a PyPI page"""
+ def scan(link):
+ # Process a URL to see if it's for a package page
+ if link.startswith(self.index_url):
+ parts = map(
+ urllib2.unquote, link[len(self.index_url):].split('/')
+ )
+ if len(parts)==2 and '#' not in parts[1]:
+ # it's a package page, sanitize and index it
+ pkg = safe_name(parts[0])
+ ver = safe_version(parts[1])
+ self.package_pages.setdefault(pkg.lower(),{})[link] = True
+ return to_filename(pkg), to_filename(ver)
+ return None, None
+
+ # process an index page into the package-page index
+ for match in HREF.finditer(page):
+ scan( urlparse.urljoin(url, htmldecode(match.group(1))) )
+
+ pkg, ver = scan(url) # ensure this page is in the page index
+ if pkg:
+ # process individual package page
+ for new_url in find_external_links(url, page):
+ # Process the found URL
+ base, frag = egg_info_for_url(new_url)
+ if base.endswith('.py') and not frag:
+ if ver:
+ new_url+='#egg=%s-%s' % (pkg,ver)
+ else:
+ self.need_version_info(url)
+ self.scan_url(new_url)
+
+ return PYPI_MD5.sub(
+ lambda m: '<a href="%s#md5=%s">%s</a>' % m.group(1,3,2), page
+ )
+ else:
+ return "" # no sense double-scanning non-package pages
+
+
+
+ def need_version_info(self, url):
+ self.scan_all(
+ "Page at %s links to .py file(s) without version info; an index "
+ "scan is required.", url
+ )
+
+ def scan_all(self, msg=None, *args):
+ if self.index_url not in self.fetched_urls:
+ if msg: self.warn(msg,*args)
+ self.info(
+ "Scanning index of all packages (this may take a while)"
+ )
+ self.scan_url(self.index_url)
+
+ def find_packages(self, requirement):
+ self.scan_url(self.index_url + requirement.unsafe_name+'/')
+
+ if not self.package_pages.get(requirement.key):
+ # Fall back to safe version of the name
+ self.scan_url(self.index_url + requirement.project_name+'/')
+
+ if not self.package_pages.get(requirement.key):
+ # We couldn't find the target package, so search the index page too
+ self.not_found_in_index(requirement)
+
+ for url in list(self.package_pages.get(requirement.key,())):
+ # scan each page that might be related to the desired package
+ self.scan_url(url)
+
+ def obtain(self, requirement, installer=None):
+ self.prescan(); self.find_packages(requirement)
+ for dist in self[requirement.key]:
+ if dist in requirement:
+ return dist
+ self.debug("%s does not match %s", requirement, dist)
+ return super(PackageIndex, self).obtain(requirement,installer)
+
+
+
+
+
+ def check_md5(self, cs, info, filename, tfp):
+ if re.match('md5=[0-9a-f]{32}$', info):
+ self.debug("Validating md5 checksum for %s", filename)
+ if cs.hexdigest()!=info[4:]:
+ tfp.close()
+ os.unlink(filename)
+ raise DistutilsError(
+ "MD5 validation failed for "+os.path.basename(filename)+
+ "; possible download problem?"
+ )
+
+ def add_find_links(self, urls):
+ """Add `urls` to the list that will be prescanned for searches"""
+ for url in urls:
+ if (
+ self.to_scan is None # if we have already "gone online"
+ or not URL_SCHEME(url) # or it's a local file/directory
+ or url.startswith('file:')
+ or list(distros_for_url(url)) # or a direct package link
+ ):
+ # then go ahead and process it now
+ self.scan_url(url)
+ else:
+ # otherwise, defer retrieval till later
+ self.to_scan.append(url)
+
+ def prescan(self):
+ """Scan urls scheduled for prescanning (e.g. --find-links)"""
+ if self.to_scan:
+ map(self.scan_url, self.to_scan)
+ self.to_scan = None # from now on, go ahead and process immediately
+
+ def not_found_in_index(self, requirement):
+ if self[requirement.key]: # we've seen at least one distro
+ meth, msg = self.info, "Couldn't retrieve index page for %r"
+ else: # no distros seen for this name, might be misspelled
+ meth, msg = (self.warn,
+ "Couldn't find index page for %r (maybe misspelled?)")
+ meth(msg, requirement.unsafe_name)
+ self.scan_all()
+
+ def download(self, spec, tmpdir):
+ """Locate and/or download `spec` to `tmpdir`, returning a local path
+
+ `spec` may be a ``Requirement`` object, or a string containing a URL,
+ an existing local filename, or a project/version requirement spec
+ (i.e. the string form of a ``Requirement`` object). If it is the URL
+ of a .py file with an unambiguous ``#egg=name-version`` tag (i.e., one
+ that escapes ``-`` as ``_`` throughout), a trivial ``setup.py`` is
+ automatically created alongside the downloaded file.
+
+ If `spec` is a ``Requirement`` object or a string containing a
+ project/version requirement spec, this method returns the location of
+ a matching distribution (possibly after downloading it to `tmpdir`).
+ If `spec` is a locally existing file or directory name, it is simply
+ returned unchanged. If `spec` is a URL, it is downloaded to a subpath
+ of `tmpdir`, and the local filename is returned. Various errors may be
+ raised if a problem occurs during downloading.
+ """
+ if not isinstance(spec,Requirement):
+ scheme = URL_SCHEME(spec)
+ if scheme:
+ # It's a url, download it to tmpdir
+ found = self._download_url(scheme.group(1), spec, tmpdir)
+ base, fragment = egg_info_for_url(spec)
+ if base.endswith('.py'):
+ found = self.gen_setup(found,fragment,tmpdir)
+ return found
+ elif os.path.exists(spec):
+ # Existing file or directory, just return it
+ return spec
+ else:
+ try:
+ spec = Requirement.parse(spec)
+ except ValueError:
+ raise DistutilsError(
+ "Not a URL, existing file, or requirement spec: %r" %
+ (spec,)
+ )
+ return getattr(self.fetch_distribution(spec, tmpdir),'location',None)
+
+
+ def fetch_distribution(self,
+ requirement, tmpdir, force_scan=False, source=False, develop_ok=False,
+ local_index=None,
+ ):
+ """Obtain a distribution suitable for fulfilling `requirement`
+
+ `requirement` must be a ``pkg_resources.Requirement`` instance.
+ If necessary, or if the `force_scan` flag is set, the requirement is
+ searched for in the (online) package index as well as the locally
+ installed packages. If a distribution matching `requirement` is found,
+ the returned distribution's ``location`` is the value you would have
+ gotten from calling the ``download()`` method with the matching
+ distribution's URL or filename. If no matching distribution is found,
+ ``None`` is returned.
+
+ If the `source` flag is set, only source distributions and source
+ checkout links will be considered. Unless the `develop_ok` flag is
+ set, development and system eggs (i.e., those using the ``.egg-info``
+ format) will be ignored.
+ """
+ # process a Requirement
+ self.info("Searching for %s", requirement)
+ skipped = {}
+ dist = None
+
+ def find(env, req):
+ # Find a matching distribution; may be called more than once
+
+ # first try to find a local dist
+ for allow_remote in (False, True):
+ # then try to find a platform-dependent dist
+ for allow_platform_independent in (False, True):
+ for dist in env[req.key]:
+ if dist.precedence==DEVELOP_DIST and not develop_ok:
+ if dist not in skipped:
+ self.warn("Skipping development or system egg: %s",dist)
+ skipped[dist] = 1
+ continue
+
+ if ((is_local(dist.location) or allow_remote) and
+ (dist in req) and
+ ((allow_platform_independent or dist.platform is not None) and
+ (dist.precedence<=SOURCE_DIST or not source))):
+ return dist
+
+ if force_scan:
+ self.prescan()
+ self.find_packages(requirement)
+ dist = find(self, requirement)
+
+ if local_index is not None:
+ dist = dist or find(local_index, requirement)
+
+ if dist is None and self.to_scan is not None:
+ self.prescan()
+ dist = find(self, requirement)
+
+ if dist is None and not force_scan:
+ self.find_packages(requirement)
+ dist = find(self, requirement)
+
+ if dist is None:
+ self.warn(
+ "No local packages or download links found for %s%s",
+ (source and "a source distribution of " or ""),
+ requirement,
+ )
+ else:
+ self.info("Best match: %s", dist)
+ return dist.clone(location=self.download(dist.location, tmpdir))
+
+
+ def fetch(self, requirement, tmpdir, force_scan=False, source=False):
+ """Obtain a file suitable for fulfilling `requirement`
+
+ DEPRECATED; use the ``fetch_distribution()`` method now instead. For
+ backward compatibility, this routine is identical but returns the
+ ``location`` of the downloaded distribution instead of a distribution
+ object.
+ """
+ dist = self.fetch_distribution(requirement,tmpdir,force_scan,source)
+ if dist is not None:
+ return dist.location
+ return None
+
+
+ def gen_setup(self, filename, fragment, tmpdir):
+ match = EGG_FRAGMENT.match(fragment)
+ dists = match and [d for d in
+ interpret_distro_name(filename, match.group(1), None) if d.version
+ ] or []
+
+ if len(dists)==1: # unambiguous ``#egg`` fragment
+ basename = os.path.basename(filename)
+
+ # Make sure the file has been downloaded to the temp dir.
+ if os.path.dirname(filename) != tmpdir:
+ dst = os.path.join(tmpdir, basename)
+ from setuptools.command.easy_install import samefile
+ if not samefile(filename, dst):
+ shutil.copy2(filename, dst)
+ filename=dst
+
+ file = open(os.path.join(tmpdir, 'setup.py'), 'w')
+ file.write(
+ "from setuptools import setup\n"
+ "setup(name=%r, version=%r, py_modules=[%r])\n"
+ % (
+ dists[0].project_name, dists[0].version,
+ os.path.splitext(basename)[0]
+ )
+ )
+ file.close()
+ return filename
+
+ elif match:
+ raise DistutilsError(
+ "Can't unambiguously interpret project/version identifier %r; "
+ "any dashes in the name or version should be escaped using "
+ "underscores. %r" % (fragment,dists)
+ )
+ else:
+ raise DistutilsError(
+ "Can't process plain .py files without an '#egg=name-version'"
+ " suffix to enable automatic setup script generation."
+ )
+
+ dl_blocksize = 8192
+ def _download_to(self, url, filename):
+ self.info("Downloading %s", url)
+ # Download the file
+ fp, tfp, info = None, None, None
+ try:
+ if '#' in url:
+ url, info = url.split('#', 1)
+ fp = self.open_url(url)
+ if isinstance(fp, urllib2.HTTPError):
+ raise DistutilsError(
+ "Can't download %s: %s %s" % (url, fp.code,fp.msg)
+ )
+ cs = md5()
+ headers = fp.info()
+ blocknum = 0
+ bs = self.dl_blocksize
+ size = -1
+ if "content-length" in headers:
+ size = int(headers["Content-Length"])
+ self.reporthook(url, filename, blocknum, bs, size)
+ tfp = open(filename,'wb')
+ while True:
+ block = fp.read(bs)
+ if block:
+ cs.update(block)
+ tfp.write(block)
+ blocknum += 1
+ self.reporthook(url, filename, blocknum, bs, size)
+ else:
+ break
+ if info: self.check_md5(cs, info, filename, tfp)
+ return headers
+ finally:
+ if fp: fp.close()
+ if tfp: tfp.close()
+
+ def reporthook(self, url, filename, blocknum, blksize, size):
+ pass # no-op
+
+
+ def open_url(self, url, warning=None):
+ if url.startswith('file:'): return local_open(url)
+ try:
+ return open_with_auth(url)
+ except urllib2.HTTPError, v:
+ return v
+ except urllib2.URLError, v:
+ reason = v.reason
+ except httplib.HTTPException, v:
+ reason = "%s: %s" % (v.__doc__ or v.__class__.__name__, v)
+ if warning:
+ self.warn(warning, reason)
+ else:
+ raise DistutilsError("Download error for %s: %s" % (url, reason))
+
+ def _download_url(self, scheme, url, tmpdir):
+ # Determine download filename
+ #
+ name, fragment = egg_info_for_url(url)
+ if name:
+ while '..' in name:
+ name = name.replace('..','.').replace('\\','_')
+ else:
+ name = "__downloaded__" # default if URL has no path contents
+
+ if name.endswith('.egg.zip'):
+ name = name[:-4] # strip the extra .zip before download
+
+ filename = os.path.join(tmpdir,name)
+
+ # Download the file
+ #
+ if scheme=='svn' or scheme.startswith('svn+'):
+ return self._download_svn(url, filename)
+ elif scheme=='file':
+ return urllib2.url2pathname(urlparse.urlparse(url)[2])
+ else:
+ self.url_ok(url, True) # raises error if not allowed
+ return self._attempt_download(url, filename)
+
+
+ def scan_url(self, url):
+ self.process_url(url, True)
+
+
+ def _attempt_download(self, url, filename):
+ headers = self._download_to(url, filename)
+ if 'html' in headers.get('content-type','').lower():
+ return self._download_html(url, headers, filename)
+ else:
+ return filename
+
+ def _download_html(self, url, headers, filename):
+ file = open(filename)
+ for line in file:
+ if line.strip():
+ # Check for a subversion index page
+ if re.search(r'<title>([^- ]+ - )?Revision \d+:', line):
+ # it's a subversion index page:
+ file.close()
+ os.unlink(filename)
+ return self._download_svn(url, filename)
+ break # not an index page
+ file.close()
+ os.unlink(filename)
+ raise DistutilsError("Unexpected HTML page found at "+url)
+
+ def _download_svn(self, url, filename):
+ url = url.split('#',1)[0] # remove any fragment for svn's sake
+ self.info("Doing subversion checkout from %s to %s", url, filename)
+ os.system("svn checkout -q %s %s" % (url, filename))
+ return filename
+
+ def debug(self, msg, *args):
+ log.debug(msg, *args)
+
+ def info(self, msg, *args):
+ log.info(msg, *args)
+
+ def warn(self, msg, *args):
+ log.warn(msg, *args)
+
+# This pattern matches a character entity reference (a decimal numeric
+# references, a hexadecimal numeric reference, or a named reference).
+entity_sub = re.compile(r'&(#(\d+|x[\da-fA-F]+)|[\w.:-]+);?').sub
+
+def uchr(c):
+ if not isinstance(c, int):
+ return c
+ if c>255: return unichr(c)
+ return chr(c)
+
+def decode_entity(match):
+ what = match.group(1)
+ if what.startswith('#x'):
+ what = int(what[2:], 16)
+ elif what.startswith('#'):
+ what = int(what[1:])
+ else:
+ from htmlentitydefs import name2codepoint
+ what = name2codepoint.get(what, match.group(0))
+ return uchr(what)
+
+def htmldecode(text):
+ """Decode HTML entities in the given text."""
+ return entity_sub(decode_entity, text)
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+def open_with_auth(url):
+ """Open a urllib2 request, handling HTTP authentication"""
+
+ scheme, netloc, path, params, query, frag = urlparse.urlparse(url)
+
+ if scheme in ('http', 'https'):
+ auth, host = urllib.splituser(netloc)
+ else:
+ auth = None
+
+ if auth:
+ auth = "Basic " + urllib2.unquote(auth).encode('base64').strip()
+ new_url = urlparse.urlunparse((scheme,host,path,params,query,frag))
+ request = urllib2.Request(new_url)
+ request.add_header("Authorization", auth)
+ else:
+ request = urllib2.Request(url)
+
+ request.add_header('User-Agent', user_agent)
+ fp = urllib2.urlopen(request)
+
+ if auth:
+ # Put authentication info back into request URL if same host,
+ # so that links found on the page will work
+ s2, h2, path2, param2, query2, frag2 = urlparse.urlparse(fp.url)
+ if s2==scheme and h2==host:
+ fp.url = urlparse.urlunparse((s2,netloc,path2,param2,query2,frag2))
+
+ return fp
+
+
+
+
+
+
+
+
+
+
+
+
+def fix_sf_url(url):
+ return url # backward compatibility
+
+def local_open(url):
+ """Read a local path, with special support for directories"""
+ scheme, server, path, param, query, frag = urlparse.urlparse(url)
+ filename = urllib2.url2pathname(path)
+ if os.path.isfile(filename):
+ return urllib2.urlopen(url)
+ elif path.endswith('/') and os.path.isdir(filename):
+ files = []
+ for f in os.listdir(filename):
+ if f=='index.html':
+ body = open(os.path.join(filename,f),'rb').read()
+ break
+ elif os.path.isdir(os.path.join(filename,f)):
+ f+='/'
+ files.append("<a href=%r>%s</a>" % (f,f))
+ else:
+ body = ("<html><head><title>%s</title>" % url) + \
+ "</head><body>%s</body></html>" % '\n'.join(files)
+ status, message = 200, "OK"
+ else:
+ status, message, body = 404, "Path not found", "Not found"
+
+ return urllib2.HTTPError(url, status, message,
+ {'content-type':'text/html'}, cStringIO.StringIO(body))
+
+
+
+
+
+
+
+
+
+
+
+
+
+# this line is a kludge to keep the trailing blank lines for pje's editor
projects / tahoe-lafs / zfec.git / blobdiff