def resolve(web_url):
'''
Resolve a web page to a media stream.
It is usually as simple as::
import urlresolver
media_url = urlresolver.resolve(web_url)
where ``web_url`` is the address of a web page which is associated with a
media file and ``media_url`` is the direct URL to the media.
Behind the scenes, :mod:`urlresolver` will check each of the available
resolver plugins to see if they accept the ``web_url`` in priority order
(lowest priotity number first). When it finds a plugin willing to resolve
the URL, it passes the ``web_url`` to the plugin and returns the direct URL
to the media file, or ``False`` if it was not possible to resolve.
.. seealso::
:class:`HostedMediaFile`
Args:
web_url (str): A URL to a web page associated with a piece of media
content.
Returns:
If the ``web_url`` could be resolved, a string containing the direct
URL to the media file, if not, returns ``False``.
'''
source = HostedMediaFile(url=web_url)
return source.resolve()
def resolve(web_url):
'''
Resolve a web page to a media stream.
It is usually as simple as::
import urlresolver9
media_url = urlresolver.resolve(web_url)
where ``web_url`` is the address of a web page which is associated with a
media file and ``media_url`` is the direct URL to the media.
Behind the scenes, :mod:`urlresolver` will check each of the available
resolver plugins to see if they accept the ``web_url`` in priority order
(lowest priotity number first). When it finds a plugin willing to resolve
the URL, it passes the ``web_url`` to the plugin and returns the direct URL
to the media file, or ``False`` if it was not possible to resolve.
.. seealso::
:class:`HostedMediaFile`
Args:
web_url (str): A URL to a web page associated with a piece of media
content.
Returns:
If the ``web_url`` could be resolved, a string containing the direct
URL to the media file, if not, returns ``False``.
'''
source = HostedMediaFile(url=web_url)
return source.resolve()
def scrape_supported(html, regex=None, host_only=False):
'''
returns a list of links scraped from the html that are supported by urlresolver
args:
html: the html to be scraped
regex: an optional argument to override the default regex which is: href\s*=\s*["']([^'"]+
host_only: an optional argument if true to do only host validation vs full url validation (default False)
Returns:
a list of links scraped from the html that passed validation
'''
if regex is None: regex = '''href\s*=\s*['"]([^'"]+)'''
links = []
for match in re.finditer(regex, html):
stream_url = match.group(1)
host = urlparse.urlparse(stream_url).hostname
if host_only:
if host is None:
continue
if host in host_cache:
if host_cache[host]:
links.append(stream_url)
continue
else:
hmf = HostedMediaFile(
host=host, media_id='dummy'
) # use dummy media_id to allow host validation
else:
hmf = HostedMediaFile(url=stream_url)
is_valid = hmf.valid_url()
host_cache[host] = is_valid
if is_valid:
links.append(stream_url)
return links
def scrape_supported(html, regex=None, host_only=False):
'''
returns a list of links scraped from the html that are supported by urlresolver
args:
html: the html to be scraped
regex: an optional argument to override the default regex which is: href\s*=\s*["']([^'"]+
host_only: an optional argument if true to do only host validation vs full url validation (default False)
Returns:
a list of links scraped from the html that passed validation
'''
if regex is None: regex = '''href\s*=\s*['"]([^'"]+)'''
links = []
for match in re.finditer(regex, html):
stream_url = match.group(1)
host = urlparse.urlparse(stream_url).hostname
if host_only:
if host is None:
continue
if host in host_cache:
if host_cache[host]:
links.append(stream_url)
continue
else:
hmf = HostedMediaFile(host=host, media_id='dummy') # use dummy media_id to allow host validation
else:
hmf = HostedMediaFile(url=stream_url)
is_valid = hmf.valid_url()
host_cache[host] = is_valid
if is_valid:
links.append(stream_url)
return links
