Move the opener to the YoutubeDL object.

This is the first step towards being able to just import youtube_dl and start using it.
Apart from removing global state, this would fix problems like #1805.

youtube_dl/YoutubeDL.py

@@ -7,8 +7,10 @@ import errno
 import io
 import json
 import os
+import platform
 import re
 import shutil
+import subprocess
 import socket
 import sys
 import time
@@ -18,6 +20,7 @@ if os.name == 'nt':
     import ctypes
 
 from .utils import (
+    compat_cookiejar,
     compat_http_client,
     compat_print,
     compat_str,
@@ -31,8 +34,10 @@ from .utils import (
     encodeFilename,
     ExtractorError,
     locked_file,
+    make_HTTPS_handler,
     MaxDownloadsReached,
     PostProcessingError,
+    platform_name,
     preferredencoding,
     SameFileError,
     sanitize_filename,
@@ -41,9 +46,11 @@ from .utils import (
     UnavailableVideoError,
     write_json_file,
     write_string,
+    YoutubeDLHandler,
 )
 from .extractor import get_info_extractor, gen_extractors
 from .FileDownloader import FileDownloader
+from .version import __version__
 
 
 class YoutubeDL(object):
@@ -120,6 +127,8 @@ class YoutubeDL(object):
     downloadarchive:   File name of a file where all downloads are recorded.
                        Videos already present in the file are not downloaded
                        again.
+    cookiefile:        File name where cookies should be read from and dumped to.
+    nocheckcertificate Do not verify SSL certificates
 
     The following parameters are not used by YoutubeDL itself, they are used by
     the FileDownloader:
@@ -160,6 +169,8 @@ class YoutubeDL(object):
         if '%(stitle)s' in self.params['outtmpl']:
             self.report_warning(u'%(stitle)s is deprecated. Use the %(title)s and the --restrict-filenames flag(which also secures %(uploader)s et al) instead.')
 
+        self._setup_opener()
+
     def add_info_extractor(self, ie):
         """Add an InfoExtractor object to the end of the list."""
         self._ies.append(ie)
@@ -235,6 +246,9 @@ class YoutubeDL(object):
 
     def __exit__(self, *args):
         self.restore_console_title()
+    
+        if self.params.get('cookiefile') is not None:
+            self.cookiejar.save()
 
     def fixed_template(self):
         """Checks if the output template is fixed."""
@@ -774,7 +788,7 @@ class YoutubeDL(object):
         for url in url_list:
             try:
                 #It also downloads the videos
-                videos = self.extract_info(url)
+                self.extract_info(url)
             except UnavailableVideoError:
                 self.report_error(u'unable to download video')
             except MaxDownloadsReached:
@@ -885,3 +899,73 @@ class YoutubeDL(object):
             '_resolution': u'resolution', 'format_note': u'note'})
         self.to_screen(u'[info] Available formats for %s:\n%s\n%s' %
                        (info_dict['id'], header_line, u"\n".join(formats_s)))
+
+    def urlopen(self, req):
+        """ Start an HTTP download """
+        return self._opener.open(req)
+
+    def print_debug_header(self):
+        if not self.params.get('verbose'):
+            return
+        write_string(u'[debug] youtube-dl version ' + __version__ + u'\n')
+        try:
+            sp = subprocess.Popen(
+                ['git', 'rev-parse', '--short', 'HEAD'],
+                stdout=subprocess.PIPE, stderr=subprocess.PIPE,
+                cwd=os.path.dirname(os.path.abspath(__file__)))
+            out, err = sp.communicate()
+            out = out.decode().strip()
+            if re.match('[0-9a-f]+', out):
+                write_string(u'[debug] Git HEAD: ' + out + u'\n')
+        except:
+            try:
+                sys.exc_clear()
+            except:
+                pass
+        write_string(u'[debug] Python version %s - %s' %
+                     (platform.python_version(), platform_name()) + u'\n')
+
+        proxy_map = {}
+        for handler in self._opener.handlers:
+            if hasattr(handler, 'proxies'):
+                proxy_map.update(handler.proxies)
+        write_string(u'[debug] Proxy map: ' + compat_str(proxy_map) + u'\n')
+
+    def _setup_opener(self, timeout=300):
+        opts_cookiefile = self.params.get('cookiefile')
+        opts_proxy = self.params.get('proxy')
+
+        if opts_cookiefile is None:
+            self.cookiejar = compat_cookiejar.CookieJar()
+        else:
+            self.cookiejar = compat_cookiejar.MozillaCookieJar(
+                opts_cookiefile)
+            if os.access(opts_cookiefile, os.R_OK):
+                self.cookiejar.load()
+
+        cookie_processor = compat_urllib_request.HTTPCookieProcessor(
+            self.cookiejar)
+        if opts_proxy is not None:
+            if opts_proxy == '':
+                proxies = {}
+            else:
+                proxies = {'http': opts_proxy, 'https': opts_proxy}
+        else:
+            proxies = compat_urllib_request.getproxies()
+            # Set HTTPS proxy to HTTP one if given (https://github.com/rg3/youtube-dl/issues/805)
+            if 'http' in proxies and 'https' not in proxies:
+                proxies['https'] = proxies['http']
+        proxy_handler = compat_urllib_request.ProxyHandler(proxies)
+        https_handler = make_HTTPS_handler(
+            self.params.get('nocheckcertificate', False))
+        opener = compat_urllib_request.build_opener(
+            https_handler, proxy_handler, cookie_processor, YoutubeDLHandler())
+        # Delete the default user-agent header, which would otherwise apply in
+        # cases where our custom HTTP handler doesn't come into play
+        # (See https://github.com/rg3/youtube-dl/issues/1309 for details)
+        opener.addheaders = []
+        self._opener = opener
+
+        # TODO remove this global modification
+        compat_urllib_request.install_opener(opener)
+        socket.setdefaulttimeout(timeout)

youtube_dl/__init__.py

@@ -40,45 +40,35 @@ __authors__  = (
 __license__ = 'Public Domain'
 
 import codecs
-import collections
 import getpass
 import optparse
 import os
 import random
 import re
 import shlex
-import socket
 import subprocess
 import sys
-import traceback
-import platform
 
 
 from .utils import (
-    compat_cookiejar,
     compat_print,
-    compat_str,
-    compat_urllib_request,
     DateRange,
     decodeOption,
     determine_ext,
     DownloadError,
     get_cachedir,
-    make_HTTPS_handler,
     MaxDownloadsReached,
-    platform_name,
     preferredencoding,
     SameFileError,
     std_headers,
     write_string,
-    YoutubeDLHandler,
 )
 from .update import update_self
-from .version import __version__
 from .FileDownloader import (
     FileDownloader,
 )
 from .extractor import gen_extractors
+from .version import __version__
 from .YoutubeDL import YoutubeDL
 from .PostProcessor import (
     FFmpegMetadataPP,
@@ -451,19 +441,6 @@ def _real_main(argv=None):
 
     parser, opts, args = parseOpts(argv)
 
-    # Open appropriate CookieJar
-    if opts.cookiefile is None:
-        jar = compat_cookiejar.CookieJar()
-    else:
-        try:
-            jar = compat_cookiejar.MozillaCookieJar(opts.cookiefile)
-            if os.access(opts.cookiefile, os.R_OK):
-                jar.load()
-        except (IOError, OSError) as err:
-            if opts.verbose:
-                traceback.print_exc()
-            write_string(u'ERROR: unable to open cookie file\n')
-            sys.exit(101)
     # Set user agent
     if opts.user_agent is not None:
         std_headers['User-Agent'] = opts.user_agent
@@ -495,8 +472,6 @@ def _real_main(argv=None):
     all_urls = batchurls + args
     all_urls = [url.strip() for url in all_urls]
 
-    opener = _setup_opener(jar=jar, opts=opts)
-
     extractors = gen_extractors()
 
     if opts.list_extractors:
@@ -551,7 +526,7 @@ def _real_main(argv=None):
     if opts.retries is not None:
         try:
             opts.retries = int(opts.retries)
-        except (TypeError, ValueError) as err:
+        except (TypeError, ValueError):
             parser.error(u'invalid retry count specified')
     if opts.buffersize is not None:
         numeric_buffersize = FileDownloader.parse_bytes(opts.buffersize)
@@ -562,13 +537,13 @@ def _real_main(argv=None):
         opts.playliststart = int(opts.playliststart)
         if opts.playliststart <= 0:
             raise ValueError(u'Playlist start must be positive')
-    except (TypeError, ValueError) as err:
+    except (TypeError, ValueError):
         parser.error(u'invalid playlist start number specified')
     try:
         opts.playlistend = int(opts.playlistend)
         if opts.playlistend != -1 and (opts.playlistend <= 0 or opts.playlistend < opts.playliststart):
             raise ValueError(u'Playlist end must be greater than playlist start')
-    except (TypeError, ValueError) as err:
+    except (TypeError, ValueError):
         parser.error(u'invalid playlist end number specified')
     if opts.extractaudio:
         if opts.audioformat not in ['best', 'aac', 'mp3', 'm4a', 'opus', 'vorbis', 'wav']:
@@ -671,34 +646,12 @@ def _real_main(argv=None):
         'youtube_print_sig_code': opts.youtube_print_sig_code,
         'age_limit': opts.age_limit,
         'download_archive': opts.download_archive,
+        'cookiefile': opts.cookiefile,
+        'nocheckcertificate': opts.no_check_certificate,
     }
 
     with YoutubeDL(ydl_opts) as ydl:
-        if opts.verbose:
-            write_string(u'[debug] youtube-dl version ' + __version__ + u'\n')
-            try:
-                sp = subprocess.Popen(
-                    ['git', 'rev-parse', '--short', 'HEAD'],
-                    stdout=subprocess.PIPE, stderr=subprocess.PIPE,
-                    cwd=os.path.dirname(os.path.abspath(__file__)))
-                out, err = sp.communicate()
-                out = out.decode().strip()
-                if re.match('[0-9a-f]+', out):
-                    write_string(u'[debug] Git HEAD: ' + out + u'\n')
-            except:
-                try:
-                    sys.exc_clear()
-                except:
-                    pass
-            write_string(u'[debug] Python version %s - %s' %
-                         (platform.python_version(), platform_name()) + u'\n')
-
-            proxy_map = {}
-            for handler in opener.handlers:
-                if hasattr(handler, 'proxies'):
-                    proxy_map.update(handler.proxies)
-            write_string(u'[debug] Proxy map: ' + compat_str(proxy_map) + u'\n')
-
+        ydl.print_debug_header()
         ydl.add_default_info_extractors()
 
         # PostProcessors
@@ -729,46 +682,9 @@ def _real_main(argv=None):
             ydl.to_screen(u'--max-download limit reached, aborting.')
             retcode = 101
 
-    # Dump cookie jar if requested
-    if opts.cookiefile is not None:
-        try:
-            jar.save()
-        except (IOError, OSError):
-            sys.exit(u'ERROR: unable to save cookie jar')
-
     sys.exit(retcode)
 
 
-def _setup_opener(jar=None, opts=None, timeout=300):
-    if opts is None:
-        FakeOptions = collections.namedtuple(
-            'FakeOptions', ['proxy', 'no_check_certificate'])
-        opts = FakeOptions(proxy=None, no_check_certificate=False)
-
-    cookie_processor = compat_urllib_request.HTTPCookieProcessor(jar)
-    if opts.proxy is not None:
-        if opts.proxy == '':
-            proxies = {}
-        else:
-            proxies = {'http': opts.proxy, 'https': opts.proxy}
-    else:
-        proxies = compat_urllib_request.getproxies()
-        # Set HTTPS proxy to HTTP one if given (https://github.com/rg3/youtube-dl/issues/805)
-        if 'http' in proxies and 'https' not in proxies:
-            proxies['https'] = proxies['http']
-    proxy_handler = compat_urllib_request.ProxyHandler(proxies)
-    https_handler = make_HTTPS_handler(opts)
-    opener = compat_urllib_request.build_opener(
-        https_handler, proxy_handler, cookie_processor, YoutubeDLHandler())
-    # Delete the default user-agent header, which would otherwise apply in
-    # cases where our custom HTTP handler doesn't come into play
-    # (See https://github.com/rg3/youtube-dl/issues/1309 for details)
-    opener.addheaders = []
-    compat_urllib_request.install_opener(opener)
-    socket.setdefaulttimeout(timeout)
-    return opener
-
-
 def main(argv=None):
     try:
         _real_main(argv)

youtube_dl/extractor/common.py

@@ -8,7 +8,6 @@ import netrc
 from ..utils import (
     compat_http_client,
     compat_urllib_error,
-    compat_urllib_request,
     compat_str,
 
     clean_html,
@@ -19,6 +18,7 @@ from ..utils import (
     unescapeHTML,
 )
 
+
 class InfoExtractor(object):
     """Information Extractor class.
 
@@ -156,7 +156,7 @@ class InfoExtractor(object):
         elif note is not False:
             self.to_screen(u'%s: %s' % (video_id, note))
         try:
-            return compat_urllib_request.urlopen(url_or_request)
+            return self._downloader.urlopen(url_or_request)
         except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
             if errnote is None:
                 errnote = u'Unable to download webpage'

youtube_dl/utils.py

@@ -535,7 +535,7 @@ def formatSeconds(secs):
     else:
         return '%d' % secs
 
-def make_HTTPS_handler(opts):
+def make_HTTPS_handler(opts_no_check_certificate):
     if sys.version_info < (3,2):
         # Python's 2.x handler is very simplistic
         return compat_urllib_request.HTTPSHandler()
@@ -545,7 +545,7 @@ def make_HTTPS_handler(opts):
         context.set_default_verify_paths()
         
         context.verify_mode = (ssl.CERT_NONE
-                               if opts.no_check_certificate
+                               if opts_no_check_certificate
                                else ssl.CERT_REQUIRED)
         return compat_urllib_request.HTTPSHandler(context=context)