示例#1
0
 def _set_url(self, url):
     if isinstance(url, str):
         self._url = safe_url_string(url)
     elif isinstance(url, unicode):
         if self.encoding is None:
             raise TypeError("Cannot convert unicode url - %s has no encoding" % type(self).__name__)
         unicode_url = url if isinstance(url, unicode) else url.decode(self.encoding)
         self._url = safe_url_string(unicode_url, self.encoding)
     else:
         raise TypeError("Request url must be str or unicode, got %s:" % type(url).__name__)
示例#2
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 def _set_url(self, url):
     if isinstance(url, str):
         self._url = safe_url_string(url)
     elif isinstance(url, unicode):
         if self.encoding is None:
             raise TypeError(
                 'Cannot convert unicode url - %s has no encoding' %
                 type(self).__name__)
         unicode_url = url if isinstance(url, unicode) else url.decode(
             self.encoding)
         self._url = safe_url_string(unicode_url, self.encoding)
     else:
         raise TypeError('Request url must be str or unicode, got %s:' %
                         type(url).__name__)
示例#3
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文件: utils.py 项目: usakey/Any
def canonicalize_url(url, keep_blank_values=True, keep_fragments=False,
        encoding=None):
    """Canonicalize the given url by applying the following procedures:

    - sort query arguments, first by key, then by value
    - percent encode paths and query arguments. non-ASCII characters are
      percent-encoded using UTF-8 (RFC-3986)
    - normalize all spaces (in query arguments) '+' (plus symbol)
    - normalize percent encodings case (%2f -> %2F)
    - remove query arguments with blank values (unless keep_blank_values is True)
    - remove duplicate query arguments
    - remove fragments (unless keep_fragments is True)

    The url passed can be a str or unicode, while the url returned is always a
    str.

    This builds on scrapy.utils.url.canonicalize_url to remove duplicate arguments.
    """

    scheme, netloc, path, params, query, fragment = parse_url(url)
    keyvals = urlparse.parse_qsl(query, keep_blank_values)
    keyvals = list(set(keyvals))
    keyvals.sort()
    query = urllib.urlencode(keyvals)
    path = safe_url_string(_unquotepath(path)) or '/'
    fragment = '' if not keep_fragments else fragment
    return urlparse.urlunparse((scheme, netloc.lower(), path, params, query, fragment))
示例#4
0
文件: url.py 项目: falood/smart-buyer
def canonicalize_url(url, keep_blank_values=True, keep_fragments=False, \
        encoding=None):
    """Canonicalize the given url by applying the following procedures:

    - sort query arguments, first by key, then by value
    - percent encode paths and query arguments. non-ASCII characters are
      percent-encoded using UTF-8 (RFC-3986)
    - normalize all spaces (in query arguments) '+' (plus symbol)
    - normalize percent encodings case (%2f -> %2F)
    - remove query arguments with blank values (unless keep_blank_values is True)
    - remove fragments (unless keep_fragments is True)

    The url passed can be a str or unicode, while the url returned is always a
    str.

    For examples see the tests in scrapy.tests.test_utils_url
    """

    url = unicode_to_str(url, encoding)
    scheme, netloc, path, params, query, fragment = urlparse.urlparse(url)
    keyvals = cgi.parse_qsl(query, keep_blank_values)
    keyvals.sort()
    query = urllib.urlencode(keyvals)
    # strip is added by hewei
    path = safe_url_string(urllib.unquote(path).strip())
    fragment = '' if not keep_fragments else fragment
    return urlparse.urlunparse((scheme, netloc.lower(), path, params, query, fragment))
示例#5
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def canonicalize_url(url, keep_blank_values=True, keep_fragments=False, \
        encoding=None):
    """Canonicalize the given url by applying the following procedures:

    - sort query arguments, first by key, then by value
    - percent encode paths and query arguments. non-ASCII characters are
      percent-encoded using UTF-8 (RFC-3986)
    - normalize all spaces (in query arguments) '+' (plus symbol)
    - normalize percent encodings case (%2f -> %2F)
    - remove query arguments with blank values (unless keep_blank_values is True)
    - remove fragments (unless keep_fragments is True)

    The url passed can be a str or unicode, while the url returned is always a
    str.

    For examples see the tests in scrapy.tests.test_utils_url
    """

    url = unicode_to_str(url, encoding)

    scheme, netloc, path, params, query, fragment = urlparse.urlparse(url)
    keyvals = cgi.parse_qsl(query, keep_blank_values)
    keyvals.sort()
    query = urllib.urlencode(keyvals)
    # strip is added by hewei
    path = safe_url_string(urllib.unquote(path).strip())
    fragment = '' if not keep_fragments else fragment
    return urlparse.urlunparse(
        (scheme, netloc.lower(), path, params, query, fragment))
示例#6
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 def fetch_links(self, document, base_url):
     global fetchlinks
     try:
         for el, attr, attr_val in self._iter_links(document):
             if self._match_element(el.tag, attr):
                 if attr_val.find('http://') > 0:
                     url = attr_val[attr_val.find('http://'):]
                 elif attr_val.find('https://') > 0:
                     url = attr_val[attr_val.find('https://'):]
                 elif attr_val[:2] == '//':
                     url = base_url[:base_url.find('://') + 1] + attr_val
                 else:
                     url = urljoin(base_url, attr_val)
                 _url = str(url)
                 #if isinstance(url, unicode):
                 #url = url.encode(response_encoding, errors='ignore')
                 url = escape_ajax(safe_url_string(url))
                 n = url.find('#')
                 if n != -1:
                     url = url[:n]
                 urlmd5 = self.get_md5(url)
                 _tag = str(el.tag)
                 _attr = str(attr if attr is not None else '')
                 _txt = str(el.text if el.text is not None else '')
                 fetchlinks[urlmd5] = (_tag, _attr, _txt, _url)
     except AttributeError as e:
         print 'Exception: ', e, base_url
示例#7
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 def _make_absolute_urls(self, base_url, encoding):
     """Makes all request's urls absolute"""
     for req in self.requests:
         url = req.url
         # make absolute url
         url = urljoin_rfc(base_url, url, encoding)
         url = safe_url_string(url, encoding)
         # replace in-place request's url
         req.url = url
示例#8
0
def image_url(txt):
    """convert text to a url
    
    this is quite conservative, since relative urls are supported
    Example:

        >>> image_url('')

        >>> image_url('   ')

        >>> image_url(' \\n\\n  ')

        >>> image_url('foo-bar.jpg')
        ['foo-bar.jpg']
        >>> image_url('/images/main_logo12.gif')
        ['/images/main_logo12.gif']
        >>> image_url("http://www.image.com/image.jpg")
        ['http://www.image.com/image.jpg']
        >>> image_url("http://www.domain.com/path1/path2/path3/image.jpg")
        ['http://www.domain.com/path1/path2/path3/image.jpg']
        >>> image_url("/path1/path2/path3/image.jpg")
        ['/path1/path2/path3/image.jpg']
        >>> image_url("path1/path2/image.jpg")
        ['path1/path2/image.jpg']
        >>> image_url("background-image : url(http://www.site.com/path1/path2/image.jpg)")
        ['http://www.site.com/path1/path2/image.jpg']
        >>> image_url("background-image : url('http://www.site.com/path1/path2/image.jpg')")
        ['http://www.site.com/path1/path2/image.jpg']
        >>> image_url('background-image : url("http://www.site.com/path1/path2/image.jpg")')
        ['http://www.site.com/path1/path2/image.jpg']
        >>> image_url("background : url(http://www.site.com/path1/path2/image.jpg)")
        ['http://www.site.com/path1/path2/image.jpg']
        >>> image_url("background : url('http://www.site.com/path1/path2/image.jpg')")
        ['http://www.site.com/path1/path2/image.jpg']
        >>> image_url('background : url("http://www.site.com/path1/path2/image.jpg")')
        ['http://www.site.com/path1/path2/image.jpg']
        >>> image_url('/getimage.php?image=totalgardens/outbbq2_400.jpg&type=prod&resizeto=350')
        ['/getimage.php?image=totalgardens/outbbq2_400.jpg&type=prod&resizeto=350']
        >>> image_url('http://www.site.com/getimage.php?image=totalgardens/outbbq2_400.jpg&type=prod&resizeto=350')
        ['http://www.site.com/getimage.php?image=totalgardens/outbbq2_400.jpg&type=prod&resizeto=350']
        >>> image_url('http://s7d4.scene7.com/is/image/Kohler/jaa03267?hei=425&wid=457&op_usm=2,1,2,1&qlt=80')
        ['http://s7d4.scene7.com/is/image/Kohler/jaa03267?hei=425&wid=457&op_usm=2,1,2,1&qlt=80']
        >>> image_url('../image.aspx?thumb=true&boxSize=175&img=Unknoportrait[1].jpg')
        ['../image.aspx?thumb=true&boxSize=175&img=Unknoportrait%5B1%5D.jpg']
        >>> image_url('http://www.sundancecatalog.com/mgen/catalog/test.ms?args=%2245932|MERIDIAN+PENDANT|.jpg%22&is=336,336,0xffffff')
        ['http://www.sundancecatalog.com/mgen/catalog/test.ms?args=%2245932|MERIDIAN+PENDANT|.jpg%22&is=336,336,0xffffff']
        >>> image_url('http://www.site.com/image.php')
        ['http://www.site.com/image.php']
        >>> image_url('background-image:URL(http://s7d5.scene7.com/is/image/wasserstrom/165133?wid=227&hei=227&defaultImage=noimage_wasserstrom)')
        ['http://s7d5.scene7.com/is/image/wasserstrom/165133?wid=227&hei=227&defaultImage=noimage_wasserstrom']

    """
    imgurl = extract_image_url(txt)
    return [safe_url_string(remove_entities(url(imgurl)))] if imgurl else None
示例#9
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def image_url(txt):
    """convert text to a url
    
    this is quite conservative, since relative urls are supported
    Example:

        >>> image_url('')

        >>> image_url('   ')

        >>> image_url(' \\n\\n  ')

        >>> image_url('foo-bar.jpg')
        ['foo-bar.jpg']
        >>> image_url('/images/main_logo12.gif')
        ['/images/main_logo12.gif']
        >>> image_url("http://www.image.com/image.jpg")
        ['http://www.image.com/image.jpg']
        >>> image_url("http://www.domain.com/path1/path2/path3/image.jpg")
        ['http://www.domain.com/path1/path2/path3/image.jpg']
        >>> image_url("/path1/path2/path3/image.jpg")
        ['/path1/path2/path3/image.jpg']
        >>> image_url("path1/path2/image.jpg")
        ['path1/path2/image.jpg']
        >>> image_url("background-image : url(http://www.site.com/path1/path2/image.jpg)")
        ['http://www.site.com/path1/path2/image.jpg']
        >>> image_url("background-image : url('http://www.site.com/path1/path2/image.jpg')")
        ['http://www.site.com/path1/path2/image.jpg']
        >>> image_url('background-image : url("http://www.site.com/path1/path2/image.jpg")')
        ['http://www.site.com/path1/path2/image.jpg']
        >>> image_url("background : url(http://www.site.com/path1/path2/image.jpg)")
        ['http://www.site.com/path1/path2/image.jpg']
        >>> image_url("background : url('http://www.site.com/path1/path2/image.jpg')")
        ['http://www.site.com/path1/path2/image.jpg']
        >>> image_url('background : url("http://www.site.com/path1/path2/image.jpg")')
        ['http://www.site.com/path1/path2/image.jpg']
        >>> image_url('/getimage.php?image=totalgardens/outbbq2_400.jpg&type=prod&resizeto=350')
        ['/getimage.php?image=totalgardens/outbbq2_400.jpg&type=prod&resizeto=350']
        >>> image_url('http://www.site.com/getimage.php?image=totalgardens/outbbq2_400.jpg&type=prod&resizeto=350')
        ['http://www.site.com/getimage.php?image=totalgardens/outbbq2_400.jpg&type=prod&resizeto=350']
        >>> image_url('http://s7d4.scene7.com/is/image/Kohler/jaa03267?hei=425&wid=457&op_usm=2,1,2,1&qlt=80')
        ['http://s7d4.scene7.com/is/image/Kohler/jaa03267?hei=425&wid=457&op_usm=2,1,2,1&qlt=80']
        >>> image_url('../image.aspx?thumb=true&boxSize=175&img=Unknoportrait[1].jpg')
        ['../image.aspx?thumb=true&boxSize=175&img=Unknoportrait%5B1%5D.jpg']
        >>> image_url('http://www.sundancecatalog.com/mgen/catalog/test.ms?args=%2245932|MERIDIAN+PENDANT|.jpg%22&is=336,336,0xffffff')
        ['http://www.sundancecatalog.com/mgen/catalog/test.ms?args=%2245932|MERIDIAN+PENDANT|.jpg%22&is=336,336,0xffffff']
        >>> image_url('http://www.site.com/image.php')
        ['http://www.site.com/image.php']
        >>> image_url('background-image:URL(http://s7d5.scene7.com/is/image/wasserstrom/165133?wid=227&hei=227&defaultImage=noimage_wasserstrom)')
        ['http://s7d5.scene7.com/is/image/wasserstrom/165133?wid=227&hei=227&defaultImage=noimage_wasserstrom']

    """
    imgurl = extract_image_url(txt)
    return [safe_url_string(remove_entities(url(imgurl)))] if imgurl else None
示例#10
0
    def _extract_links(self, response_text, response_url, response_encoding):
        self.base_url, self.links = etree.HTML(response_text, self.parser) 

        links = unique_list(self.links, key=lambda link: link.url) if self.unique else self.links

        ret = []
        base_url = urljoin_rfc(response_url, self.base_url) if self.base_url else response_url
        for link in links:
            link.url = urljoin_rfc(base_url, link.url, response_encoding)
            link.url = safe_url_string(link.url, response_encoding)
            link.text = str_to_unicode(link.text, response_encoding)
            ret.append(link)

        return ret
示例#11
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文件: sgml.py 项目: pkufranky/scrapy
    def _extract_links(self, response_text, response_url, response_encoding):
        """ Do the real extraction work """
        self.reset()
        self.feed(response_text)
        self.close()

        ret = []
        base_url = urljoin_rfc(response_url, self.base_url) if self.base_url else response_url
        for link in self.links:
            link.url = urljoin_rfc(base_url, link.url, response_encoding)
            link.url = safe_url_string(link.url, response_encoding)
            link.text = str_to_unicode(link.text, response_encoding)
            ret.append(link)

        return ret
示例#12
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    def _extract_links(self, response_text, response_url, response_encoding):
        self.reset()
        self.feed(response_text)
        self.close()

        links = unique_list(self.links, key=lambda link: link.url) if self.unique else self.links

        ret = []
        base_url = self.base_url if self.base_url else response_url
        for link in links:
            link.url = urljoin_rfc(base_url, link.url, response_encoding)
            link.url = safe_url_string(link.url, response_encoding)
            link.text = link.text.decode(response_encoding)
            ret.append(link)

        return ret
示例#13
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    def _extract_links(self, response_text, response_url, response_encoding):
        self.reset()
        self.feed(response_text)
        self.close()

        links = unique_list(self.links, key=lambda link: link.url) if self.unique else self.links

        ret = []
        base_url = urljoin_rfc(response_url, self.base_url) if self.base_url else response_url
        for link in links:
            link.url = urljoin_rfc(base_url, link.url, response_encoding)
            link.url = safe_url_string(link.url, response_encoding)
            link.text = link.text.decode(response_encoding)
            ret.append(link)

        return ret
示例#14
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    def _extract_links(self, response_text, response_url, response_encoding):
        self.base_url, self.links = etree.HTML(response_text, self.parser)

        links = unique_list(
            self.links,
            key=lambda link: link.url) if self.unique else self.links

        ret = []
        base_url = urljoin_rfc(
            response_url, self.base_url) if self.base_url else response_url
        for link in links:
            link.url = urljoin_rfc(base_url, link.url, response_encoding)
            link.url = safe_url_string(link.url, response_encoding)
            link.text = str_to_unicode(link.text,
                                       response_encoding,
                                       errors='replace')
            ret.append(link)

        return ret
示例#15
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def get_meta_refresh(response):
    """Parse the http-equiv parameter of the HTML meta element from the given
    response and return a tuple (interval, url) where interval is an integer
    containing the delay in seconds (or zero if not present) and url is a
    string with the absolute url to redirect.

    If no meta redirect is found, (None, None) is returned.
    """
    if response not in _metaref_cache:
        body_chunk = remove_comments(remove_entities(response.body_as_unicode()[0:4096]))
        match = META_REFRESH_RE.search(body_chunk)
        if match:
            interval = float(match.group('int'))
            url = safe_url_string(match.group('url').strip(' "\''))
            url = urljoin_rfc(response.url, url)
            _metaref_cache[response] = (interval, url)
        else:
            _metaref_cache[response] = (None, None)
        #_metaref_cache[response] = match.groups() if match else (None, None)
    return _metaref_cache[response]
示例#16
0
def get_meta_refresh(response):
    """Parse the http-equiv parameter of the HTML meta element from the given
    response and return a tuple (interval, url) where interval is an integer
    containing the delay in seconds (or zero if not present) and url is a
    string with the absolute url to redirect.

    If no meta redirect is found, (None, None) is returned.
    """
    if response not in _metaref_cache:
        body_chunk = remove_comments(
            remove_entities(response.body_as_unicode()[0:4096]))
        match = META_REFRESH_RE.search(body_chunk)
        if match:
            interval = float(match.group('int'))
            url = safe_url_string(match.group('url').strip(' "\''))
            url = urljoin_rfc(response.url, url)
            _metaref_cache[response] = (interval, url)
        else:
            _metaref_cache[response] = (None, None)
        #_metaref_cache[response] = match.groups() if match else (None, None)
    return _metaref_cache[response]
示例#17
0
    def _extract_links(self,
                       response_text,
                       response_url,
                       response_encoding,
                       base_url=None):
        """ Do the real extraction work """
        self.reset()
        self.feed(response_text)
        self.close()

        ret = []
        if base_url is None:
            base_url = urljoin_rfc(
                response_url, self.base_url) if self.base_url else response_url
        for link in self.links:
            link.url = urljoin_rfc(base_url, link.url, response_encoding)
            link.url = safe_url_string(link.url, response_encoding)
            link.text = str_to_unicode(link.text,
                                       response_encoding,
                                       errors='replace')
            ret.append(link)

        return ret
示例#18
0
def get_meta_refresh(response):
    """Parse the http-equiv parameter of the HTML meta element from the given
    response and return a tuple (interval, url) where interval is an integer
    containing the delay in seconds (or zero if not present) and url is a
    string with the absolute url to redirect.

    If no meta redirect is found, (None, None) is returned.
    """
    if response not in _metaref_cache:
        body_chunk = remove_comments(remove_entities(response.body_as_unicode()[0:4096]))
        for match1 in META_TAG_RE.finditer(body_chunk):
            params = {}
            for match2 in META_TAG_ATTRS_RE.finditer(match1.group(1)):
                params[match2.group("key")] = match2.group("value")
            if params.get("http-equiv") == "refresh":
                match = META_CONTENT_RE.search(params.get("content", ""))
                if match:
                    interval = float(match.group("int"))
                    url = urljoin_rfc(response.url, safe_url_string((match.group("url") or "").strip(' "\'')))
                    _metaref_cache[response] = (interval, url)
                    return (interval, url)
        _metaref_cache[response] = (None, None)
    return _metaref_cache[response]
示例#19
0
    def _extract_links(self,
                       response_text,
                       response_url,
                       response_encoding,
                       base_url=None,
                       jsurl=None):
        """ Do the real extraction work """
        self.reset()
        self.feed(response_text)
        self.close()

        ret = []
        if base_url is None:
            base_url = urljoin_rfc(
                response_url, self.base_url) if self.base_url else response_url
        for link in self.links:
            link.url = link.url.strip()

            if jsurl:
                lu = link.url
                if lu.startswith('javascript:'):
                    g = _re_js_link.search(lu)
                    if g:
                        gs = g.groups()
                        link.url = gs[1]

            link.url = urljoin_rfc(base_url, link.url, response_encoding)
            link.url = safe_url_string(link.url, response_encoding)
            try:
                link.text = str_to_unicode(link.text, response_encoding)
            except:
                link.text = None
                log.msg("link text codec error: [%s]" % link.url,
                        level=log.INFO)
            ret.append(link)

        return ret
示例#20
0
def image_url(txt):
    """convert text to a url
    
    this is quite conservative, since relative urls are supported
    Example:

        >>> image_url('')

        >>> image_url('   ')

        >>> image_url(' \\n\\n  ')

        >>> image_url('foo-bar.jpg')
        ['foo-bar.jpg']
        >>> image_url('/images/main_logo12.gif')
        ['/images/main_logo12.gif']
        >>> image_url("http://www.image.com/image.jpg")
        ['http://www.image.com/image.jpg']
        >>> image_url("http://www.domain.com/path1/path2/path3/image.jpg")
        ['http://www.domain.com/path1/path2/path3/image.jpg']
        >>> image_url("/path1/path2/path3/image.jpg")
        ['/path1/path2/path3/image.jpg']
        >>> image_url("path1/path2/image.jpg")
        ['path1/path2/image.jpg']
        >>> image_url("background-image : url(http://www.site.com/path1/path2/image.jpg)")
        ['http://www.site.com/path1/path2/image.jpg']
        >>> image_url("background-image : url('http://www.site.com/path1/path2/image.jpg')")
        ['http://www.site.com/path1/path2/image.jpg']
        >>> image_url('background-image : url("http://www.site.com/path1/path2/image.jpg")')
        ['http://www.site.com/path1/path2/image.jpg']
        >>> image_url("background : url(http://www.site.com/path1/path2/image.jpg)")
        ['http://www.site.com/path1/path2/image.jpg']
        >>> image_url("background : url('http://www.site.com/path1/path2/image.jpg')")
        ['http://www.site.com/path1/path2/image.jpg']
        >>> image_url('background : url("http://www.site.com/path1/path2/image.jpg")')
        ['http://www.site.com/path1/path2/image.jpg']
        >>> image_url('/getimage.php?image=totalgardens/outbbq2_400.jpg&type=prod&resizeto=350')
        ['/getimage.php?image=totalgardens/outbbq2_400.jpg&type=prod&resizeto=350']
        >>> image_url('http://www.site.com/getimage.php?image=totalgardens/outbbq2_400.jpg&type=prod&resizeto=350')
        ['http://www.site.com/getimage.php?image=totalgardens/outbbq2_400.jpg&type=prod&resizeto=350']
        >>> image_url('http://s7d4.scene7.com/is/image/Kohler/jaa03267?hei=425&wid=457&op_usm=2,1,2,1&qlt=80')
        ['http://s7d4.scene7.com/is/image/Kohler/jaa03267?hei=425&wid=457&op_usm=2,1,2,1&qlt=80']
        >>> image_url('../image.aspx?thumb=true&boxSize=175&img=Unknoportrait[1].jpg')
        ['../image.aspx?thumb=true&boxSize=175&img=Unknoportrait%5B1%5D.jpg']
        >>> image_url('http://www.sundancecatalog.com/mgen/catalog/test.ms?args=%2245932|MERIDIAN+PENDANT|.jpg%22&is=336,336,0xffffff')
        ['http://www.sundancecatalog.com/mgen/catalog/test.ms?args=%2245932|MERIDIAN+PENDANT|.jpg%22&is=336,336,0xffffff']
        >>> image_url('http://www.site.com/image.php')
        ['http://www.site.com/image.php']
        >>> image_url('background-image:URL(http://s7d5.scene7.com/is/image/wasserstrom/165133?wid=227&hei=227&defaultImage=noimage_wasserstrom)')
        ['http://s7d5.scene7.com/is/image/wasserstrom/165133?wid=227&hei=227&defaultImage=noimage_wasserstrom']

    """
    txt = url(txt)
    imgurl = None
    if txt:
        # check if the text is style content
        m = _CSS_IMAGERE.search(txt)
        txt = m.groups()[0] if m else txt
        parsed = urlparse.urlparse(txt)
        path = None
        m = _IMAGE_PATH_RE.search(parsed.path)
        if m:
            path = m.group()
        elif parsed.query:
            m = _GENERIC_PATH_RE.search(parsed.path)
            if m:
                path = m.group()
        if path is not None:
            parsed = list(parsed)
            parsed[2] = path
            imgurl = urlparse.urlunparse(parsed)
        if not imgurl:
            imgurl = txt
    return [safe_url_string(remove_entities(url(imgurl)))] if imgurl else None
示例#21
0
def image_url(txt):
    """convert text to a url
    
    this is quite conservative, since relative urls are supported
    Example:

        >>> image_url('')

        >>> image_url('   ')

        >>> image_url(' \\n\\n  ')

        >>> image_url('foo-bar.jpg')
        ['foo-bar.jpg']
        >>> image_url('/images/main_logo12.gif')
        ['/images/main_logo12.gif']
        >>> image_url("http://www.image.com/image.jpg")
        ['http://www.image.com/image.jpg']
        >>> image_url("http://www.domain.com/path1/path2/path3/image.jpg")
        ['http://www.domain.com/path1/path2/path3/image.jpg']
        >>> image_url("/path1/path2/path3/image.jpg")
        ['/path1/path2/path3/image.jpg']
        >>> image_url("path1/path2/image.jpg")
        ['path1/path2/image.jpg']
        >>> image_url("background-image : url(http://www.site.com/path1/path2/image.jpg)")
        ['http://www.site.com/path1/path2/image.jpg']
        >>> image_url("background-image : url('http://www.site.com/path1/path2/image.jpg')")
        ['http://www.site.com/path1/path2/image.jpg']
        >>> image_url('background-image : url("http://www.site.com/path1/path2/image.jpg")')
        ['http://www.site.com/path1/path2/image.jpg']
        >>> image_url("background : url(http://www.site.com/path1/path2/image.jpg)")
        ['http://www.site.com/path1/path2/image.jpg']
        >>> image_url("background : url('http://www.site.com/path1/path2/image.jpg')")
        ['http://www.site.com/path1/path2/image.jpg']
        >>> image_url('background : url("http://www.site.com/path1/path2/image.jpg")')
        ['http://www.site.com/path1/path2/image.jpg']
        >>> image_url('/getimage.php?image=totalgardens/outbbq2_400.jpg&type=prod&resizeto=350')
        ['/getimage.php?image=totalgardens/outbbq2_400.jpg&type=prod&resizeto=350']
        >>> image_url('http://www.site.com/getimage.php?image=totalgardens/outbbq2_400.jpg&type=prod&resizeto=350')
        ['http://www.site.com/getimage.php?image=totalgardens/outbbq2_400.jpg&type=prod&resizeto=350']
        >>> image_url('http://s7d4.scene7.com/is/image/Kohler/jaa03267?hei=425&wid=457&op_usm=2,1,2,1&qlt=80')
        ['http://s7d4.scene7.com/is/image/Kohler/jaa03267?hei=425&wid=457&op_usm=2,1,2,1&qlt=80']
        >>> image_url('../image.aspx?thumb=true&boxSize=175&img=Unknoportrait[1].jpg')
        ['../image.aspx?thumb=true&boxSize=175&img=Unknoportrait%5B1%5D.jpg']
        >>> image_url('http://www.sundancecatalog.com/mgen/catalog/test.ms?args=%2245932|MERIDIAN+PENDANT|.jpg%22&is=336,336,0xffffff')
        ['http://www.sundancecatalog.com/mgen/catalog/test.ms?args=%2245932|MERIDIAN+PENDANT|.jpg%22&is=336,336,0xffffff']
        >>> image_url('http://www.site.com/image.php')
        ['http://www.site.com/image.php']
        >>> image_url('background-image:URL(http://s7d5.scene7.com/is/image/wasserstrom/165133?wid=227&hei=227&defaultImage=noimage_wasserstrom)')
        ['http://s7d5.scene7.com/is/image/wasserstrom/165133?wid=227&hei=227&defaultImage=noimage_wasserstrom']

    """
    txt = url(txt)
    imgurl = None
    if txt:
        # check if the text is style content
        m = _CSS_IMAGERE.search(txt)
        txt = m.groups()[0] if m else txt
        parsed = urlparse.urlparse(txt)
        path = None
        m = _IMAGE_PATH_RE.search(parsed.path)
        if m:
            path = m.group()
        elif parsed.query:
            m = _GENERIC_PATH_RE.search(parsed.path)
            if m:
                path = m.group()
        if path is not None:
            parsed = list(parsed)
            parsed[2] = path
            imgurl = urlparse.urlunparse(parsed)
        if not imgurl:
            imgurl = txt
    return [safe_url_string(remove_entities(url(imgurl)))] if imgurl else None
示例#22
0
    def test_safe_url_string(self):
        # Motoko Kusanagi (Cyborg from Ghost in the Shell)
        motoko = u'\u8349\u8599 \u7d20\u5b50'
        self.assertEqual(safe_url_string(motoko),  # note the %20 for space
                        '%E8%8D%89%E8%96%99%20%E7%B4%A0%E5%AD%90')
        self.assertEqual(safe_url_string(motoko),
                         safe_url_string(safe_url_string(motoko)))
        self.assertEqual(safe_url_string(u'\xa9'), # copyright symbol
                         '%C2%A9')
        self.assertEqual(safe_url_string(u'\xa9', 'iso-8859-1'),
                         '%A9')
        self.assertEqual(safe_url_string("http://www.scrapy.org/"),
                        'http://www.scrapy.org/')

        alessi = u'/ecommerce/oggetto/Te \xf2/tea-strainer/1273'

        self.assertEqual(safe_url_string(alessi),
                         '/ecommerce/oggetto/Te%20%C3%B2/tea-strainer/1273')

        self.assertEqual(safe_url_string("http://www.example.com/test?p(29)url(http://www.another.net/page)"),
                                         "http://www.example.com/test?p(29)url(http://www.another.net/page)")
        self.assertEqual(safe_url_string("http://www.example.com/Brochures_&_Paint_Cards&PageSize=200"),
                                         "http://www.example.com/Brochures_&_Paint_Cards&PageSize=200")

        safeurl = safe_url_string(u"http://www.example.com/\xa3", encoding='latin-1')
        self.assert_(isinstance(safeurl, str))
        self.assertEqual(safeurl, "http://www.example.com/%A3")

        safeurl = safe_url_string(u"http://www.example.com/\xa3", encoding='utf-8')
        self.assert_(isinstance(safeurl, str))
        self.assertEqual(safeurl, "http://www.example.com/%C2%A3")
示例#23
0
    def test_safe_url_string(self):
        # Motoko Kusanagi (Cyborg from Ghost in the Shell)
        motoko = u'\u8349\u8599 \u7d20\u5b50'
        self.assertEqual(safe_url_string(motoko),  # note the %20 for space
                        '%E8%8D%89%E8%96%99%20%E7%B4%A0%E5%AD%90')
        self.assertEqual(safe_url_string(motoko),
                         safe_url_string(safe_url_string(motoko)))
        self.assertEqual(safe_url_string(u'\xa9'), # copyright symbol
                         '%C2%A9')
        self.assertEqual(safe_url_string(u'\xa9', 'iso-8859-1'),
                         '%A9')
        self.assertEqual(safe_url_string("http://www.scrapy.org/"),
                        'http://www.scrapy.org/')

        alessi = u'/ecommerce/oggetto/Te \xf2/tea-strainer/1273'

        self.assertEqual(safe_url_string(alessi),
                         '/ecommerce/oggetto/Te%20%C3%B2/tea-strainer/1273')

        self.assertEqual(safe_url_string("http://www.example.com/test?p(29)url(http://www.another.net/page)"),
                                         "http://www.example.com/test?p(29)url(http://www.another.net/page)")
        self.assertEqual(safe_url_string("http://www.example.com/Brochures_&_Paint_Cards&PageSize=200"),
                                         "http://www.example.com/Brochures_&_Paint_Cards&PageSize=200")

        safeurl = safe_url_string(u"http://www.example.com/\xa3", encoding='latin-1')
        self.assert_(isinstance(safeurl, str))
        self.assertEqual(safeurl, "http://www.example.com/%A3")

        safeurl = safe_url_string(u"http://www.example.com/\xa3", encoding='utf-8')
        self.assert_(isinstance(safeurl, str))
        self.assertEqual(safeurl, "http://www.example.com/%C2%A3")
示例#24
0
 def _make_absolute_urls(self, base_url, encoding):
     """Makes all request's urls absolute"""
     self.requests = [x.replace(url=safe_url_string(urljoin_rfc(base_url, \
         x.url, encoding), encoding)) for x in self.requests]