def scraped_rel_links(self):
for regex in (self._homepage_re, self._download_re):
match = regex.search(self.content)
if not match:
continue
href_match = self._href_re.search(self.content, pos=match.end())
if not href_match:
continue
url = href_match.group(1) or href_match.group(2) or href_match.group(3)
if not url:
continue
url = self.clean_link(urlparse.urljoin(self.base_url, url))
yield Link(url, self)
def explicit_rel_links(self, rels=('homepage', 'download')):
"""Yields all links with the given relations"""
rels = set(rels)
for anchor in self.parsed.findall(".//a"):
if anchor.get("rel") and anchor.get("href"):
found_rels = set(anchor.get("rel").split())
# Determine the intersection between what rels were found and
# what rels were being looked for
if found_rels & rels:
href = anchor.get("href")
url = self.clean_link(urlparse.urljoin(self.base_url, href))
yield Link(url, self, trusted=False)
def scraped_rel_links(self):
for regex in (self._homepage_re, self._download_re):
match = regex.search(self.content)
if not match:
continue
href_match = self._href_re.search(self.content, pos=match.end())
if not href_match:
continue
url = href_match.group(1) or href_match.group(2) or href_match.group(3)
if not url:
continue
url = self.clean_link(urlparse.urljoin(self.base_url, url))
yield Link(url, self)
def explicit_rel_links(self, rels=('homepage', 'download')):
"""Yields all links with the given relations"""
rels = set(rels)
for anchor in self.parsed.findall(".//a"):
if anchor.get("rel") and anchor.get("href"):
found_rels = set(anchor.get("rel").split())
# Determine the intersection between what rels were found and
# what rels were being looked for
if found_rels & rels:
href = anchor.get("href")
url = self.clean_link(urlparse.urljoin(self.base_url, href))
yield Link(url, self, trusted=False)
def scraped_rel_links(self):
# Can we get rid of this horrible horrible method?
for regex in (self._homepage_re, self._download_re):
match = regex.search(self.content)
if not match:
continue
href_match = self._href_re.search(self.content, pos=match.end())
if not href_match:
continue
url = href_match.group(1) or href_match.group(2) or href_match.group(3)
if not url:
continue
url = self.clean_link(urlparse.urljoin(self.base_url, url))
yield Link(url, self, trusted=False, _deprecated_regex=True)
def scraped_rel_links(self):
# Can we get rid of this horrible horrible method?
for regex in (self._homepage_re, self._download_re):
match = regex.search(self.content)
if not match:
continue
href_match = self._href_re.search(self.content, pos=match.end())
if not href_match:
continue
url = href_match.group(1) or href_match.group(2) or href_match.group(3)
if not url:
continue
url = self.clean_link(urlparse.urljoin(self.base_url, url))
yield Link(url, self, trusted=False, _deprecated_regex=True)
def explicit_rel_links(self, rels=('homepage', 'download')):
"""Yields all links with the given relations"""
for match in self._rel_re.finditer(self.content):
found_rels = match.group(1).lower().split()
for rel in rels:
if rel in found_rels:
break
else:
continue
match = self._href_re.search(match.group(0))
if not match:
continue
url = match.group(1) or match.group(2) or match.group(3)
url = self.clean_link(urlparse.urljoin(self.base_url, url))
yield Link(url, self)
def explicit_rel_links(self, rels=('homepage', 'download')):
"""Yields all links with the given relations"""
for match in self._rel_re.finditer(self.content):
found_rels = match.group(1).lower().split()
for rel in rels:
if rel in found_rels:
break
else:
continue
match = self._href_re.search(match.group(0))
if not match:
continue
url = match.group(1) or match.group(2) or match.group(3)
url = self.clean_link(urlparse.urljoin(self.base_url, url))
yield Link(url, self)
def links(self):
"""Yields all links in the page"""
for anchor in self.parsed.findall(".//a"):
if anchor.get("href"):
href = anchor.get("href")
url = self.clean_link(urlparse.urljoin(self.base_url, href))
# Determine if this link is internal. If that distinction
# doesn't make sense in this context, then we don't make
# any distinction.
internal = None
if self.api_version and self.api_version >= 2:
# Only api_versions >= 2 have a distinction between
# external and internal links
internal = bool(anchor.get("rel") and "internal" in anchor.get("rel").split())
yield Link(url, self, internal=internal)
def links(self):
"""Yields all links in the page"""
for anchor in self.parsed.findall(".//a"):
if anchor.get("href"):
href = anchor.get("href")
url = self.clean_link(urlparse.urljoin(self.base_url, href))
# Determine if this link is internal. If that distinction
# doesn't make sense in this context, then we don't make
# any distinction.
internal = None
if self.api_version and self.api_version >= 2:
# Only api_versions >= 2 have a distinction between
# external and internal links
internal = bool(anchor.get("rel")
and "internal" in anchor.get("rel").split())
yield Link(url, self, internal=internal)
def parse_requirements(filename,
finder=None,
comes_from=None,
options=None,
session=None):
if session is None:
session = PipSession()
skip_match = None
skip_regex = options.skip_requirements_regex if options else None
if skip_regex:
skip_match = re.compile(skip_regex)
reqs_file_dir = os.path.dirname(os.path.abspath(filename))
filename, content = get_file_content(
filename,
comes_from=comes_from,
session=session,
)
for line_number, line in enumerate(content.splitlines()):
line_number += 1
line = line.strip()
# Remove comments from file
line = re.sub(r"(^|\s)#.*$", "", line)
if not line or line.startswith('#'):
continue
if skip_match and skip_match.search(line):
continue
if line.startswith('-r') or line.startswith('--requirement'):
if line.startswith('-r'):
req_url = line[2:].strip()
else:
req_url = line[len('--requirement'):].strip().strip('=')
if _scheme_re.search(filename):
# Relative to a URL
req_url = urlparse.urljoin(filename, req_url)
elif not _scheme_re.search(req_url):
req_url = os.path.join(os.path.dirname(filename), req_url)
for item in parse_requirements(req_url,
finder,
comes_from=filename,
options=options,
session=session):
yield item
elif line.startswith('-Z') or line.startswith('--always-unzip'):
# No longer used, but previously these were used in
# requirement files, so we'll ignore.
pass
elif line.startswith('-f') or line.startswith('--find-links'):
if line.startswith('-f'):
line = line[2:].strip()
else:
line = line[len('--find-links'):].strip().lstrip('=')
# FIXME: it would be nice to keep track of the source of
# the find_links:
# support a find-links local path relative to a requirements file
relative_to_reqs_file = os.path.join(reqs_file_dir, line)
if os.path.exists(relative_to_reqs_file):
line = relative_to_reqs_file
if finder:
finder.find_links.append(line)
elif line.startswith('-i') or line.startswith('--index-url'):
if line.startswith('-i'):
line = line[2:].strip()
else:
line = line[len('--index-url'):].strip().lstrip('=')
if finder:
finder.index_urls = [line]
elif line.startswith('--extra-index-url'):
line = line[len('--extra-index-url'):].strip().lstrip('=')
if finder:
finder.index_urls.append(line)
elif line.startswith('--use-wheel'):
finder.use_wheel = True
elif line.startswith('--no-index'):
finder.index_urls = []
elif line.startswith("--allow-external"):
line = line[len("--allow-external"):].strip().lstrip("=")
finder.allow_external |= set([normalize_name(line).lower()])
elif line.startswith("--allow-all-external"):
finder.allow_all_external = True
# Remove in 1.7
elif line.startswith("--no-allow-external"):
pass
# Remove in 1.7
elif line.startswith("--no-allow-insecure"):
pass
# Remove after 1.7
elif line.startswith("--allow-insecure"):
line = line[len("--allow-insecure"):].strip().lstrip("=")
finder.allow_unverified |= set([normalize_name(line).lower()])
elif line.startswith("--allow-unverified"):
line = line[len("--allow-unverified"):].strip().lstrip("=")
finder.allow_unverified |= set([normalize_name(line).lower()])
else:
comes_from = '-r %s (line %s)' % (filename, line_number)
if line.startswith('-e') or line.startswith('--editable'):
if line.startswith('-e'):
line = line[2:].strip()
else:
line = line[len('--editable'):].strip().lstrip('=')
req = InstallRequirement.from_editable(
line,
comes_from=comes_from,
default_vcs=options.default_vcs if options else None)
else:
req = InstallRequirement.from_line(line,
comes_from,
prereleases=getattr(
options, "pre", None))
yield req
def links(self):
"""Yields all links in the page"""
for match in self._href_re.finditer(self.content):
url = match.group(1) or match.group(2) or match.group(3)
url = self.clean_link(urlparse.urljoin(self.base_url, url))
yield Link(url, self)
def get_page(cls, link, req, cache=None, skip_archives=True):
url = link.url
url = url.split('#', 1)[0]
if cache.too_many_failures(url):
return None
# Check for VCS schemes that do not support lookup as web pages.
from pip.vcs import VcsSupport
for scheme in VcsSupport.schemes:
if url.lower().startswith(scheme) and url[len(scheme)] in '+:':
logger.debug('Cannot look at %(scheme)s URL %(link)s' %
locals())
return None
if cache is not None:
inst = cache.get_page(url)
if inst is not None:
return inst
try:
if skip_archives:
if cache is not None:
if cache.is_archive(url):
return None
filename = link.filename
for bad_ext in ['.tar', '.tar.gz', '.tar.bz2', '.tgz', '.zip']:
if filename.endswith(bad_ext):
content_type = cls._get_content_type(url)
if content_type.lower().startswith('text/html'):
break
else:
logger.debug(
'Skipping page %s because of Content-Type: %s'
% (link, content_type))
if cache is not None:
cache.set_is_archive(url)
return None
logger.debug('Getting page %s' % url)
# Tack index.html onto file:// URLs that point to directories
(scheme, netloc, path, params, query,
fragment) = urlparse.urlparse(url)
if scheme == 'file' and os.path.isdir(url2pathname(path)):
# add trailing slash if not present so urljoin doesn't trim final segment
if not url.endswith('/'):
url += '/'
url = urlparse.urljoin(url, 'index.html')
logger.debug(' file: URL is directory, getting %s' % url)
resp = urlopen(url)
real_url = geturl(resp)
headers = resp.info()
contents = resp.read()
encoding = headers.get('Content-Encoding', None)
#XXX need to handle exceptions and add testing for this
if encoding is not None:
if encoding == 'gzip':
contents = gzip.GzipFile(fileobj=BytesIO(contents)).read()
if encoding == 'deflate':
contents = zlib.decompress(contents)
inst = cls(u(contents), real_url, headers)
except (HTTPError, URLError, socket.timeout, socket.error, OSError,
WindowsError):
e = sys.exc_info()[1]
desc = str(e)
if isinstance(e, socket.timeout):
log_meth = logger.info
level = 1
desc = 'timed out'
elif isinstance(e, URLError):
log_meth = logger.info
if hasattr(e, 'reason') and isinstance(e.reason,
socket.timeout):
desc = 'timed out'
level = 1
else:
level = 2
elif isinstance(e, HTTPError) and e.code == 404:
## FIXME: notify?
log_meth = logger.info
level = 2
else:
log_meth = logger.info
level = 1
log_meth('Could not fetch URL %s: %s' % (link, desc))
log_meth(
'Will skip URL %s when looking for download links for %s' %
(link.url, req))
if cache is not None:
cache.add_page_failure(url, level)
return None
if cache is not None:
cache.add_page([url, real_url], inst)
return inst
def get_page(cls, link, req, cache=None, skip_archives=True, session=None):
if session is None:
session = PipSession()
url = link.url
url = url.split('#', 1)[0]
if cache.too_many_failures(url):
return None
# Check for VCS schemes that do not support lookup as web pages.
from pip.vcs import VcsSupport
for scheme in VcsSupport.schemes:
if url.lower().startswith(scheme) and url[len(scheme)] in '+:':
logger.debug('Cannot look at %(scheme)s URL %(link)s' %
locals())
return None
if cache is not None:
inst = cache.get_page(url)
if inst is not None:
return inst
try:
if skip_archives:
if cache is not None:
if cache.is_archive(url):
return None
filename = link.filename
for bad_ext in ['.tar', '.tar.gz', '.tar.bz2', '.tgz', '.zip']:
if filename.endswith(bad_ext):
content_type = cls._get_content_type(
url,
session=session,
)
if content_type.lower().startswith('text/html'):
break
else:
logger.debug(
'Skipping page %s because of Content-Type: %s'
% (link, content_type))
if cache is not None:
cache.set_is_archive(url)
return None
logger.debug('Getting page %s' % url)
# Tack index.html onto file:// URLs that point to directories
(scheme, netloc, path, params, query,
fragment) = urlparse.urlparse(url)
if scheme == 'file' and os.path.isdir(url2pathname(path)):
# add trailing slash if not present so urljoin doesn't trim final segment
if not url.endswith('/'):
url += '/'
url = urlparse.urljoin(url, 'index.html')
logger.debug(' file: URL is directory, getting %s' % url)
resp = session.get(url, headers={"Accept": "text/html"})
resp.raise_for_status()
# The check for archives above only works if the url ends with
# something that looks like an archive. However that is not a
# requirement. For instance http://sourceforge.net/projects/docutils/files/docutils/0.8.1/docutils-0.8.1.tar.gz/download
# redirects to http://superb-dca3.dl.sourceforge.net/project/docutils/docutils/0.8.1/docutils-0.8.1.tar.gz
# Unless we issue a HEAD request on every url we cannot know
# ahead of time for sure if something is HTML or not. However we
# can check after we've downloaded it.
content_type = resp.headers.get('Content-Type', 'unknown')
if not content_type.lower().startswith("text/html"):
logger.debug('Skipping page %s because of Content-Type: %s' %
(link, content_type))
if cache is not None:
cache.set_is_archive(url)
return None
inst = cls(resp.text, resp.url, resp.headers, trusted=link.trusted)
except requests.HTTPError as exc:
level = 2 if exc.response.status_code == 404 else 1
cls._handle_fail(req, link, exc, url, cache=cache, level=level)
except requests.ConnectionError as exc:
cls._handle_fail(
req,
link,
"connection error: %s" % exc,
url,
cache=cache,
)
except requests.Timeout:
cls._handle_fail(req, link, "timed out", url, cache=cache)
except SSLError as exc:
reason = ("There was a problem confirming the ssl certificate: "
"%s" % exc)
cls._handle_fail(
req,
link,
reason,
url,
cache=cache,
level=2,
meth=logger.notify,
)
except requests.TooManyRedirects as exc:
cls._handle_fail(
req,
link,
"Error: %s" % exc,
url,
cache=cache,
)
else:
if cache is not None:
cache.add_page([url, resp.url], inst)
return inst
def get_page(cls, link, req, cache=None, skip_archives=True, session=None):
if session is None:
session = PipSession()
url = link.url
url = url.split('#', 1)[0]
if cache.too_many_failures(url):
return None
# Check for VCS schemes that do not support lookup as web pages.
from pip.vcs import VcsSupport
for scheme in VcsSupport.schemes:
if url.lower().startswith(scheme) and url[len(scheme)] in '+:':
logger.debug(
'Cannot look at %(scheme)s URL %(link)s' % locals()
)
return None
if cache is not None:
inst = cache.get_page(url)
if inst is not None:
return inst
try:
if skip_archives:
if cache is not None:
if cache.is_archive(url):
return None
filename = link.filename
for bad_ext in ['.tar', '.tar.gz', '.tar.bz2', '.tgz', '.zip']:
if filename.endswith(bad_ext):
content_type = cls._get_content_type(
url, session=session,
)
if content_type.lower().startswith('text/html'):
break
else:
logger.debug(
'Skipping page %s because of Content-Type: '
'%s' % (link, content_type)
)
if cache is not None:
cache.set_is_archive(url)
return None
logger.debug('Getting page %s' % url)
# Tack index.html onto file:// URLs that point to directories
(scheme, netloc, path, params, query, fragment) = \
urlparse.urlparse(url)
if scheme == 'file' and os.path.isdir(url2pathname(path)):
# add trailing slash if not present so urljoin doesn't trim
# final segment
if not url.endswith('/'):
url += '/'
url = urlparse.urljoin(url, 'index.html')
logger.debug(' file: URL is directory, getting %s' % url)
resp = session.get(url, headers={"Accept": "text/html"})
resp.raise_for_status()
# The check for archives above only works if the url ends with
# something that looks like an archive. However that is not a
# requirement of an url. Unless we issue a HEAD request on every
# url we cannot know ahead of time for sure if something is HTML
# or not. However we can check after we've downloaded it.
content_type = resp.headers.get('Content-Type', 'unknown')
if not content_type.lower().startswith("text/html"):
logger.debug(
'Skipping page %s because of Content-Type: %s' %
(link, content_type)
)
if cache is not None:
cache.set_is_archive(url)
return None
inst = cls(resp.text, resp.url, resp.headers, trusted=link.trusted)
except requests.HTTPError as exc:
level = 2 if exc.response.status_code == 404 else 1
cls._handle_fail(req, link, exc, url, cache=cache, level=level)
except requests.ConnectionError as exc:
cls._handle_fail(
req, link, "connection error: %s" % exc, url,
cache=cache,
)
except requests.Timeout:
cls._handle_fail(req, link, "timed out", url, cache=cache)
except SSLError as exc:
reason = ("There was a problem confirming the ssl certificate: "
"%s" % exc)
cls._handle_fail(
req, link, reason, url,
cache=cache,
level=2,
meth=logger.notify,
)
else:
if cache is not None:
cache.add_page([url, resp.url], inst)
return inst
def get_page(cls, link, req, cache=None, skip_archives=True, session=None):
if session is None:
session = PipSession()
url = link.url
url = url.split("#", 1)[0]
if cache.too_many_failures(url):
return None
# Check for VCS schemes that do not support lookup as web pages.
from pip.vcs import VcsSupport
for scheme in VcsSupport.schemes:
if url.lower().startswith(scheme) and url[len(scheme)] in "+:":
logger.debug("Cannot look at %(scheme)s URL %(link)s" % locals())
return None
if cache is not None:
inst = cache.get_page(url)
if inst is not None:
return inst
try:
if skip_archives:
if cache is not None:
if cache.is_archive(url):
return None
filename = link.filename
for bad_ext in [".tar", ".tar.gz", ".tar.bz2", ".tgz", ".zip"]:
if filename.endswith(bad_ext):
content_type = cls._get_content_type(url, session=session)
if content_type.lower().startswith("text/html"):
break
else:
logger.debug("Skipping page %s because of Content-Type: %s" % (link, content_type))
if cache is not None:
cache.set_is_archive(url)
return None
logger.debug("Getting page %s" % url)
# Tack index.html onto file:// URLs that point to directories
(scheme, netloc, path, params, query, fragment) = urlparse.urlparse(url)
if scheme == "file" and os.path.isdir(url2pathname(path)):
# add trailing slash if not present so urljoin doesn't trim final segment
if not url.endswith("/"):
url += "/"
url = urlparse.urljoin(url, "index.html")
logger.debug(" file: URL is directory, getting %s" % url)
resp = session.get(url)
resp.raise_for_status()
# The check for archives above only works if the url ends with
# something that looks like an archive. However that is not a
# requirement. For instance http://sourceforge.net/projects/docutils/files/docutils/0.8.1/docutils-0.8.1.tar.gz/download
# redirects to http://superb-dca3.dl.sourceforge.net/project/docutils/docutils/0.8.1/docutils-0.8.1.tar.gz
# Unless we issue a HEAD request on every url we cannot know
# ahead of time for sure if something is HTML or not. However we
# can check after we've downloaded it.
content_type = resp.headers.get("Content-Type", "unknown")
if not content_type.lower().startswith("text/html"):
logger.debug("Skipping page %s because of Content-Type: %s" % (link, content_type))
if cache is not None:
cache.set_is_archive(url)
return None
inst = cls(resp.text, resp.url, resp.headers, trusted=link.trusted)
except requests.HTTPError as exc:
level = 2 if exc.response.status_code == 404 else 1
cls._handle_fail(req, link, exc, url, cache=cache, level=level)
except requests.Timeout:
cls._handle_fail(req, link, "timed out", url, cache=cache)
except SSLError as exc:
reason = "There was a problem confirming the ssl certificate: " "%s" % exc
cls._handle_fail(req, link, reason, url, cache=cache, level=2, meth=logger.notify)
else:
if cache is not None:
cache.add_page([url, resp.url], inst)
return inst
def links(self):
"""Yields all links in the page"""
for match in self._href_re.finditer(self.content):
url = match.group(1) or match.group(2) or match.group(3)
url = self.clean_link(urlparse.urljoin(self.base_url, url))
yield Link(url, self)
def get_page(cls, link, req, cache=None, skip_archives=True):
url = link.url
url = url.split('#', 1)[0]
if cache.too_many_failures(url):
return None
# Check for VCS schemes that do not support lookup as web pages.
from pip.vcs import VcsSupport
for scheme in VcsSupport.schemes:
if url.lower().startswith(scheme) and url[len(scheme)] in '+:':
logger.debug('Cannot look at %(scheme)s URL %(link)s' % locals())
return None
if cache is not None:
inst = cache.get_page(url)
if inst is not None:
return inst
try:
if skip_archives:
if cache is not None:
if cache.is_archive(url):
return None
filename = link.filename
for bad_ext in ['.tar', '.tar.gz', '.tar.bz2', '.tgz', '.zip']:
if filename.endswith(bad_ext):
content_type = cls._get_content_type(url)
if content_type.lower().startswith('text/html'):
break
else:
logger.debug('Skipping page %s because of Content-Type: %s' % (link, content_type))
if cache is not None:
cache.set_is_archive(url)
return None
logger.debug('Getting page %s' % url)
# Tack index.html onto file:// URLs that point to directories
(scheme, netloc, path, params, query, fragment) = urlparse.urlparse(url)
if scheme == 'file' and os.path.isdir(url2pathname(path)):
# add trailing slash if not present so urljoin doesn't trim final segment
if not url.endswith('/'):
url += '/'
url = urlparse.urljoin(url, 'index.html')
logger.debug(' file: URL is directory, getting %s' % url)
resp = urlopen(url)
real_url = geturl(resp)
headers = resp.info()
contents = resp.read()
encoding = headers.get('Content-Encoding', None)
#XXX need to handle exceptions and add testing for this
if encoding is not None:
if encoding == 'gzip':
contents = gzip.GzipFile(fileobj=BytesIO(contents)).read()
if encoding == 'deflate':
contents = zlib.decompress(contents)
inst = cls(u(contents), real_url, headers)
except (HTTPError, URLError, socket.timeout, socket.error, OSError, WindowsError):
e = sys.exc_info()[1]
desc = str(e)
if isinstance(e, socket.timeout):
log_meth = logger.info
level =1
desc = 'timed out'
elif isinstance(e, URLError):
log_meth = logger.info
if hasattr(e, 'reason') and isinstance(e.reason, socket.timeout):
desc = 'timed out'
level = 1
else:
level = 2
elif isinstance(e, HTTPError) and e.code == 404:
## FIXME: notify?
log_meth = logger.info
level = 2
else:
log_meth = logger.info
level = 1
log_meth('Could not fetch URL %s: %s' % (link, desc))
log_meth('Will skip URL %s when looking for download links for %s' % (link.url, req))
if cache is not None:
cache.add_page_failure(url, level)
return None
if cache is not None:
cache.add_page([url, real_url], inst)
return inst
def get_page(cls, link, req, cache=None, skip_archives=True):
url = link.url
url = url.split('#', 1)[0]
if cache.too_many_failures(url):
return None
# Check for VCS schemes that do not support lookup as web pages.
from pip.vcs import VcsSupport
for scheme in VcsSupport.schemes:
if url.lower().startswith(scheme) and url[len(scheme)] in '+:':
logger.debug('Cannot look at %(scheme)s URL %(link)s' % locals())
return None
if cache is not None:
inst = cache.get_page(url)
if inst is not None:
return inst
try:
if skip_archives:
if cache is not None:
if cache.is_archive(url):
return None
filename = link.filename
for bad_ext in ['.tar', '.tar.gz', '.tar.bz2', '.tgz', '.zip']:
if filename.endswith(bad_ext):
content_type = cls._get_content_type(url)
if content_type.lower().startswith('text/html'):
break
else:
logger.debug('Skipping page %s because of Content-Type: %s' % (link, content_type))
if cache is not None:
cache.set_is_archive(url)
return None
logger.debug('Getting page %s' % url)
# Tack index.html onto file:// URLs that point to directories
(scheme, netloc, path, params, query, fragment) = urlparse.urlparse(url)
if scheme == 'file' and os.path.isdir(url2pathname(path)):
# add trailing slash if not present so urljoin doesn't trim final segment
if not url.endswith('/'):
url += '/'
url = urlparse.urljoin(url, 'index.html')
logger.debug(' file: URL is directory, getting %s' % url)
resp = urlopen(url)
real_url = geturl(resp)
headers = resp.info()
contents = resp.read()
encoding = headers.get('Content-Encoding', None)
#XXX need to handle exceptions and add testing for this
if encoding is not None:
if encoding == 'gzip':
contents = gzip.GzipFile(fileobj=BytesIO(contents)).read()
if encoding == 'deflate':
contents = zlib.decompress(contents)
# The check for archives above only works if the url ends with
# something that looks like an archive. However that is not a
# requirement. For instance http://sourceforge.net/projects/docutils/files/docutils/0.8.1/docutils-0.8.1.tar.gz/download
# redirects to http://superb-dca3.dl.sourceforge.net/project/docutils/docutils/0.8.1/docutils-0.8.1.tar.gz
# Unless we issue a HEAD request on every url we cannot know
# ahead of time for sure if something is HTML or not. However we
# can check after we've downloaded it.
content_type = headers.get('Content-Type', 'unknown')
if not content_type.lower().startswith("text/html"):
logger.debug('Skipping page %s because of Content-Type: %s' %
(link, content_type))
if cache is not None:
cache.set_is_archive(url)
return None
inst = cls(u(contents), real_url, headers, trusted=link.trusted)
except (HTTPError, URLError, socket.timeout, socket.error, OSError, WindowsError):
e = sys.exc_info()[1]
desc = str(e)
if isinstance(e, socket.timeout):
log_meth = logger.info
level =1
desc = 'timed out'
elif isinstance(e, URLError):
#ssl/certificate error
if hasattr(e, 'reason') and (isinstance(e.reason, ssl.SSLError) or isinstance(e.reason, CertificateError)):
desc = 'There was a problem confirming the ssl certificate: %s' % e
log_meth = logger.notify
else:
log_meth = logger.info
if hasattr(e, 'reason') and isinstance(e.reason, socket.timeout):
desc = 'timed out'
level = 1
else:
level = 2
elif isinstance(e, HTTPError) and e.code == 404:
## FIXME: notify?
log_meth = logger.info
level = 2
else:
log_meth = logger.info
level = 1
log_meth('Could not fetch URL %s: %s' % (link, desc))
log_meth('Will skip URL %s when looking for download links for %s' % (link.url, req))
if cache is not None:
cache.add_page_failure(url, level)
return None
if cache is not None:
cache.add_page([url, real_url], inst)
return inst
def get_page(cls, link, req, cache=None, skip_archives=True):
url = link.url
url = url.split('#', 1)[0]
if cache.too_many_failures(url):
return None
# Check for VCS schemes that do not support lookup as web pages.
from pip.vcs import VcsSupport
for scheme in VcsSupport.schemes:
if url.lower().startswith(scheme) and url[len(scheme)] in '+:':
logger.debug('Cannot look at %(scheme)s URL %(link)s' %
locals())
return None
if cache is not None:
inst = cache.get_page(url)
if inst is not None:
return inst
try:
if skip_archives:
if cache is not None:
if cache.is_archive(url):
return None
filename = link.filename
for bad_ext in ['.tar', '.tar.gz', '.tar.bz2', '.tgz', '.zip']:
if filename.endswith(bad_ext):
content_type = cls._get_content_type(url)
if content_type.lower().startswith('text/html'):
break
else:
logger.debug(
'Skipping page %s because of Content-Type: %s'
% (link, content_type))
if cache is not None:
cache.set_is_archive(url)
return None
logger.debug('Getting page %s' % url)
# Tack list.html onto file:// URLs that point to directories
(scheme, netloc, path, params, query,
fragment) = urlparse.urlparse(url)
if scheme == 'file' and os.path.isdir(url2pathname(path)):
# add trailing slash if not present so urljoin doesn't trim final segment
if not url.endswith('/'):
url += '/'
url = urlparse.urljoin(url, 'list.html')
logger.debug(' file: URL is directory, getting %s' % url)
resp = urlopen(url)
real_url = geturl(resp)
headers = resp.info()
contents = resp.read()
encoding = headers.get('Content-Encoding', None)
#XXX need to handle exceptions and add testing for this
if encoding is not None:
if encoding == 'gzip':
contents = gzip.GzipFile(fileobj=BytesIO(contents)).read()
if encoding == 'deflate':
contents = zlib.decompress(contents)
# The check for archives above only works if the url ends with
# something that looks like an archive. However that is not a
# requirement. For instance http://sourceforge.net/projects/docutils/files/docutils/0.8.1/docutils-0.8.1.tar.gz/download
# redirects to http://superb-dca3.dl.sourceforge.net/project/docutils/docutils/0.8.1/docutils-0.8.1.tar.gz
# Unless we issue a HEAD request on every url we cannot know
# ahead of time for sure if something is HTML or not. However we
# can check after we've downloaded it.
content_type = headers.get('Content-Type', 'unknown')
if not content_type.lower().startswith("text/html"):
logger.debug('Skipping page %s because of Content-Type: %s' %
(link, content_type))
if cache is not None:
cache.set_is_archive(url)
return None
inst = cls(u(contents), real_url, headers, trusted=link.trusted)
except (HTTPError, URLError, socket.timeout, socket.error, OSError,
WindowsError):
e = sys.exc_info()[1]
desc = str(e)
if isinstance(e, socket.timeout):
log_meth = logger.info
level = 1
desc = 'timed out'
elif isinstance(e, URLError):
#ssl/certificate error
if hasattr(e, 'reason') and (
isinstance(e.reason, ssl.SSLError)
or isinstance(e.reason, CertificateError)):
desc = 'There was a problem confirming the ssl certificate: %s' % e
log_meth = logger.notify
else:
log_meth = logger.info
if hasattr(e, 'reason') and isinstance(e.reason,
socket.timeout):
desc = 'timed out'
level = 1
else:
level = 2
elif isinstance(e, HTTPError) and e.code == 404:
## FIXME: notify?
log_meth = logger.info
level = 2
else:
log_meth = logger.info
level = 1
log_meth('Could not fetch URL %s: %s' % (link, desc))
log_meth(
'Will skip URL %s when looking for download links for %s' %
(link.url, req))
if cache is not None:
cache.add_page_failure(url, level)
return None
if cache is not None:
cache.add_page([url, real_url], inst)
return inst
def parse_requirements(filename, finder=None, comes_from=None, options=None,
session=None):
if session is None:
session = PipSession()
skip_match = None
skip_regex = options.skip_requirements_regex if options else None
if skip_regex:
skip_match = re.compile(skip_regex)
reqs_file_dir = os.path.dirname(os.path.abspath(filename))
filename, content = get_file_content(
filename,
comes_from=comes_from,
session=session,
)
for line_number, line in enumerate(content.splitlines()):
line_number += 1
line = line.strip()
# Remove comments from file
line = re.sub(r"(^|\s)#.*$", "", line)
if not line or line.startswith('#'):
continue
if skip_match and skip_match.search(line):
continue
if line.startswith('-r') or line.startswith('--requirement'):
if line.startswith('-r'):
req_url = line[2:].strip()
else:
req_url = line[len('--requirement'):].strip().strip('=')
if _scheme_re.search(filename):
# Relative to a URL
req_url = urlparse.urljoin(filename, req_url)
elif not _scheme_re.search(req_url):
req_url = os.path.join(os.path.dirname(filename), req_url)
for item in parse_requirements(
req_url, finder,
comes_from=filename,
options=options,
session=session):
yield item
elif line.startswith('-Z') or line.startswith('--always-unzip'):
# No longer used, but previously these were used in
# requirement files, so we'll ignore.
pass
elif line.startswith('-f') or line.startswith('--find-links'):
if line.startswith('-f'):
line = line[2:].strip()
else:
line = line[len('--find-links'):].strip().lstrip('=')
## FIXME: it would be nice to keep track of the source of
## the find_links:
# support a find-links local path relative to a requirements file
relative_to_reqs_file = os.path.join(reqs_file_dir, line)
if os.path.exists(relative_to_reqs_file):
line = relative_to_reqs_file
if finder:
finder.find_links.append(line)
elif line.startswith('-i') or line.startswith('--index-url'):
if line.startswith('-i'):
line = line[2:].strip()
else:
line = line[len('--index-url'):].strip().lstrip('=')
if finder:
finder.index_urls = [line]
elif line.startswith('--extra-index-url'):
line = line[len('--extra-index-url'):].strip().lstrip('=')
if finder:
finder.index_urls.append(line)
elif line.startswith('--use-wheel'):
finder.use_wheel = True
elif line.startswith('--no-index'):
finder.index_urls = []
elif line.startswith("--allow-external"):
line = line[len("--allow-external"):].strip().lstrip("=")
finder.allow_external |= set([normalize_name(line).lower()])
elif line.startswith("--allow-all-external"):
finder.allow_all_external = True
# Remove in 1.7
elif line.startswith("--no-allow-external"):
pass
# Remove in 1.7
elif line.startswith("--no-allow-insecure"):
pass
# Remove after 1.7
elif line.startswith("--allow-insecure"):
line = line[len("--allow-insecure"):].strip().lstrip("=")
finder.allow_unverified |= set([normalize_name(line).lower()])
elif line.startswith("--allow-unverified"):
line = line[len("--allow-unverified"):].strip().lstrip("=")
finder.allow_unverified |= set([normalize_name(line).lower()])
else:
comes_from = '-r %s (line %s)' % (filename, line_number)
if line.startswith('-e') or line.startswith('--editable'):
if line.startswith('-e'):
line = line[2:].strip()
else:
line = line[len('--editable'):].strip().lstrip('=')
req = InstallRequirement.from_editable(
line,
comes_from=comes_from,
default_vcs=options.default_vcs if options else None
)
else:
req = InstallRequirement.from_line(
line,
comes_from,
prereleases=getattr(options, "pre", None)
)
yield req
