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868 lines
35 KiB
868 lines
35 KiB
from __future__ import unicode_literals |
|
|
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import base64 |
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import datetime |
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import hashlib |
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import json |
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import netrc |
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import os |
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import re |
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import socket |
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import sys |
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import time |
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import xml.etree.ElementTree |
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|
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from ..compat import ( |
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compat_cookiejar, |
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compat_http_client, |
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compat_urllib_error, |
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compat_urllib_parse_urlparse, |
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compat_urlparse, |
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compat_str, |
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) |
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from ..utils import ( |
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clean_html, |
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compiled_regex_type, |
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ExtractorError, |
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float_or_none, |
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int_or_none, |
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RegexNotFoundError, |
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sanitize_filename, |
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unescapeHTML, |
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) |
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_NO_DEFAULT = object() |
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|
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|
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class InfoExtractor(object): |
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"""Information Extractor class. |
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|
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Information extractors are the classes that, given a URL, extract |
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information about the video (or videos) the URL refers to. This |
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information includes the real video URL, the video title, author and |
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others. The information is stored in a dictionary which is then |
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passed to the FileDownloader. The FileDownloader processes this |
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information possibly downloading the video to the file system, among |
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other possible outcomes. |
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|
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The type field determines the the type of the result. |
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By far the most common value (and the default if _type is missing) is |
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"video", which indicates a single video. |
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|
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For a video, the dictionaries must include the following fields: |
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|
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id: Video identifier. |
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title: Video title, unescaped. |
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|
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Additionally, it must contain either a formats entry or a url one: |
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|
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formats: A list of dictionaries for each format available, ordered |
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from worst to best quality. |
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|
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Potential fields: |
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* url Mandatory. The URL of the video file |
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* ext Will be calculated from url if missing |
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* format A human-readable description of the format |
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("mp4 container with h264/opus"). |
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Calculated from the format_id, width, height. |
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and format_note fields if missing. |
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* format_id A short description of the format |
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("mp4_h264_opus" or "19"). |
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Technically optional, but strongly recommended. |
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* format_note Additional info about the format |
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("3D" or "DASH video") |
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* width Width of the video, if known |
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* height Height of the video, if known |
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* resolution Textual description of width and height |
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* tbr Average bitrate of audio and video in KBit/s |
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* abr Average audio bitrate in KBit/s |
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* acodec Name of the audio codec in use |
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* asr Audio sampling rate in Hertz |
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* vbr Average video bitrate in KBit/s |
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* fps Frame rate |
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* vcodec Name of the video codec in use |
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* container Name of the container format |
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* filesize The number of bytes, if known in advance |
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* filesize_approx An estimate for the number of bytes |
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* player_url SWF Player URL (used for rtmpdump). |
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* protocol The protocol that will be used for the actual |
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download, lower-case. |
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"http", "https", "rtsp", "rtmp", "m3u8" or so. |
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* preference Order number of this format. If this field is |
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present and not None, the formats get sorted |
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by this field, regardless of all other values. |
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-1 for default (order by other properties), |
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-2 or smaller for less than default. |
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* language_preference Is this in the correct requested |
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language? |
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10 if it's what the URL is about, |
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-1 for default (don't know), |
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-10 otherwise, other values reserved for now. |
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* quality Order number of the video quality of this |
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format, irrespective of the file format. |
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-1 for default (order by other properties), |
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-2 or smaller for less than default. |
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* source_preference Order number for this video source |
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(quality takes higher priority) |
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-1 for default (order by other properties), |
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-2 or smaller for less than default. |
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* http_referer HTTP Referer header value to set. |
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* http_method HTTP method to use for the download. |
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* http_headers A dictionary of additional HTTP headers |
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to add to the request. |
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* http_post_data Additional data to send with a POST |
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request. |
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url: Final video URL. |
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ext: Video filename extension. |
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format: The video format, defaults to ext (used for --get-format) |
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player_url: SWF Player URL (used for rtmpdump). |
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|
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The following fields are optional: |
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|
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display_id An alternative identifier for the video, not necessarily |
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unique, but available before title. Typically, id is |
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something like "4234987", title "Dancing naked mole rats", |
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and display_id "dancing-naked-mole-rats" |
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thumbnails: A list of dictionaries, with the following entries: |
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* "url" |
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* "width" (optional, int) |
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* "height" (optional, int) |
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* "resolution" (optional, string "{width}x{height"}, |
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deprecated) |
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thumbnail: Full URL to a video thumbnail image. |
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description: One-line video description. |
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uploader: Full name of the video uploader. |
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timestamp: UNIX timestamp of the moment the video became available. |
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upload_date: Video upload date (YYYYMMDD). |
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If not explicitly set, calculated from timestamp. |
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uploader_id: Nickname or id of the video uploader. |
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location: Physical location where the video was filmed. |
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subtitles: The subtitle file contents as a dictionary in the format |
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{language: subtitles}. |
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duration: Length of the video in seconds, as an integer. |
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view_count: How many users have watched the video on the platform. |
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like_count: Number of positive ratings of the video |
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dislike_count: Number of negative ratings of the video |
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comment_count: Number of comments on the video |
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age_limit: Age restriction for the video, as an integer (years) |
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webpage_url: The url to the video webpage, if given to youtube-dl it |
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should allow to get the same result again. (It will be set |
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by YoutubeDL if it's missing) |
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categories: A list of categories that the video falls in, for example |
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["Sports", "Berlin"] |
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is_live: True, False, or None (=unknown). Whether this video is a |
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live stream that goes on instead of a fixed-length video. |
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|
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Unless mentioned otherwise, the fields should be Unicode strings. |
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|
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Unless mentioned otherwise, None is equivalent to absence of information. |
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_type "playlist" indicates multiple videos. |
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There must be a key "entries", which is a list or a PagedList object, each |
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element of which is a valid dictionary under this specfication. |
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|
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Additionally, playlists can have "title" and "id" attributes with the same |
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semantics as videos (see above). |
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_type "multi_video" indicates that there are multiple videos that |
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form a single show, for examples multiple acts of an opera or TV episode. |
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It must have an entries key like a playlist and contain all the keys |
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required for a video at the same time. |
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_type "url" indicates that the video must be extracted from another |
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location, possibly by a different extractor. Its only required key is: |
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"url" - the next URL to extract. |
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|
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Additionally, it may have properties believed to be identical to the |
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resolved entity, for example "title" if the title of the referred video is |
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known ahead of time. |
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_type "url_transparent" entities have the same specification as "url", but |
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indicate that the given additional information is more precise than the one |
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associated with the resolved URL. |
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This is useful when a site employs a video service that hosts the video and |
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its technical metadata, but that video service does not embed a useful |
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title, description etc. |
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Subclasses of this one should re-define the _real_initialize() and |
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_real_extract() methods and define a _VALID_URL regexp. |
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Probably, they should also be added to the list of extractors. |
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|
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Finally, the _WORKING attribute should be set to False for broken IEs |
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in order to warn the users and skip the tests. |
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""" |
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|
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_ready = False |
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_downloader = None |
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_WORKING = True |
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|
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def __init__(self, downloader=None): |
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"""Constructor. Receives an optional downloader.""" |
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self._ready = False |
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self.set_downloader(downloader) |
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|
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@classmethod |
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def suitable(cls, url): |
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"""Receives a URL and returns True if suitable for this IE.""" |
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|
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# This does not use has/getattr intentionally - we want to know whether |
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# we have cached the regexp for *this* class, whereas getattr would also |
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# match the superclass |
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if '_VALID_URL_RE' not in cls.__dict__: |
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cls._VALID_URL_RE = re.compile(cls._VALID_URL) |
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return cls._VALID_URL_RE.match(url) is not None |
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|
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@classmethod |
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def _match_id(cls, url): |
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if '_VALID_URL_RE' not in cls.__dict__: |
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cls._VALID_URL_RE = re.compile(cls._VALID_URL) |
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m = cls._VALID_URL_RE.match(url) |
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assert m |
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return m.group('id') |
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|
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@classmethod |
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def working(cls): |
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"""Getter method for _WORKING.""" |
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return cls._WORKING |
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|
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def initialize(self): |
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"""Initializes an instance (authentication, etc).""" |
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if not self._ready: |
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self._real_initialize() |
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self._ready = True |
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|
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def extract(self, url): |
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"""Extracts URL information and returns it in list of dicts.""" |
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self.initialize() |
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return self._real_extract(url) |
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|
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def set_downloader(self, downloader): |
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"""Sets the downloader for this IE.""" |
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self._downloader = downloader |
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|
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def _real_initialize(self): |
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"""Real initialization process. Redefine in subclasses.""" |
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pass |
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|
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def _real_extract(self, url): |
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"""Real extraction process. Redefine in subclasses.""" |
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pass |
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@classmethod |
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def ie_key(cls): |
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"""A string for getting the InfoExtractor with get_info_extractor""" |
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return cls.__name__[:-2] |
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|
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@property |
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def IE_NAME(self): |
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return type(self).__name__[:-2] |
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|
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def _request_webpage(self, url_or_request, video_id, note=None, errnote=None, fatal=True): |
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""" Returns the response handle """ |
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if note is None: |
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self.report_download_webpage(video_id) |
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elif note is not False: |
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if video_id is None: |
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self.to_screen('%s' % (note,)) |
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else: |
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self.to_screen('%s: %s' % (video_id, note)) |
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try: |
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return self._downloader.urlopen(url_or_request) |
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except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err: |
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if errnote is False: |
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return False |
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if errnote is None: |
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errnote = 'Unable to download webpage' |
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errmsg = '%s: %s' % (errnote, compat_str(err)) |
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if fatal: |
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raise ExtractorError(errmsg, sys.exc_info()[2], cause=err) |
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else: |
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self._downloader.report_warning(errmsg) |
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return False |
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|
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def _download_webpage_handle(self, url_or_request, video_id, note=None, errnote=None, fatal=True): |
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""" Returns a tuple (page content as string, URL handle) """ |
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# Strip hashes from the URL (#1038) |
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if isinstance(url_or_request, (compat_str, str)): |
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url_or_request = url_or_request.partition('#')[0] |
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|
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urlh = self._request_webpage(url_or_request, video_id, note, errnote, fatal) |
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if urlh is False: |
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assert not fatal |
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return False |
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content = self._webpage_read_content(urlh, url_or_request, video_id, note, errnote, fatal) |
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return (content, urlh) |
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|
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def _webpage_read_content(self, urlh, url_or_request, video_id, note=None, errnote=None, fatal=True, prefix=None): |
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content_type = urlh.headers.get('Content-Type', '') |
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webpage_bytes = urlh.read() |
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if prefix is not None: |
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webpage_bytes = prefix + webpage_bytes |
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m = re.match(r'[a-zA-Z0-9_.-]+/[a-zA-Z0-9_.-]+\s*;\s*charset=(.+)', content_type) |
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if m: |
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encoding = m.group(1) |
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else: |
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m = re.search(br'<meta[^>]+charset=[\'"]?([^\'")]+)[ /\'">]', |
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webpage_bytes[:1024]) |
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if m: |
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encoding = m.group(1).decode('ascii') |
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elif webpage_bytes.startswith(b'\xff\xfe'): |
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encoding = 'utf-16' |
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else: |
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encoding = 'utf-8' |
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if self._downloader.params.get('dump_intermediate_pages', False): |
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try: |
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url = url_or_request.get_full_url() |
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except AttributeError: |
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url = url_or_request |
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self.to_screen('Dumping request to ' + url) |
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dump = base64.b64encode(webpage_bytes).decode('ascii') |
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self._downloader.to_screen(dump) |
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if self._downloader.params.get('write_pages', False): |
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try: |
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url = url_or_request.get_full_url() |
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except AttributeError: |
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url = url_or_request |
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basen = '%s_%s' % (video_id, url) |
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if len(basen) > 240: |
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h = '___' + hashlib.md5(basen.encode('utf-8')).hexdigest() |
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basen = basen[:240 - len(h)] + h |
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raw_filename = basen + '.dump' |
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filename = sanitize_filename(raw_filename, restricted=True) |
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self.to_screen('Saving request to ' + filename) |
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# Working around MAX_PATH limitation on Windows (see |
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# http://msdn.microsoft.com/en-us/library/windows/desktop/aa365247(v=vs.85).aspx) |
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if os.name == 'nt': |
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absfilepath = os.path.abspath(filename) |
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if len(absfilepath) > 259: |
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filename = '\\\\?\\' + absfilepath |
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with open(filename, 'wb') as outf: |
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outf.write(webpage_bytes) |
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|
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try: |
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content = webpage_bytes.decode(encoding, 'replace') |
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except LookupError: |
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content = webpage_bytes.decode('utf-8', 'replace') |
|
|
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if ('<title>Access to this site is blocked</title>' in content and |
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'Websense' in content[:512]): |
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msg = 'Access to this webpage has been blocked by Websense filtering software in your network.' |
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blocked_iframe = self._html_search_regex( |
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r'<iframe src="([^"]+)"', content, |
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'Websense information URL', default=None) |
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if blocked_iframe: |
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msg += ' Visit %s for more details' % blocked_iframe |
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raise ExtractorError(msg, expected=True) |
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|
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return content |
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|
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def _download_webpage(self, url_or_request, video_id, note=None, errnote=None, fatal=True): |
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""" Returns the data of the page as a string """ |
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res = self._download_webpage_handle(url_or_request, video_id, note, errnote, fatal) |
|
if res is False: |
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return res |
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else: |
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content, _ = res |
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return content |
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|
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def _download_xml(self, url_or_request, video_id, |
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note='Downloading XML', errnote='Unable to download XML', |
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transform_source=None, fatal=True): |
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"""Return the xml as an xml.etree.ElementTree.Element""" |
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xml_string = self._download_webpage( |
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url_or_request, video_id, note, errnote, fatal=fatal) |
|
if xml_string is False: |
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return xml_string |
|
if transform_source: |
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xml_string = transform_source(xml_string) |
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return xml.etree.ElementTree.fromstring(xml_string.encode('utf-8')) |
|
|
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def _download_json(self, url_or_request, video_id, |
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note='Downloading JSON metadata', |
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errnote='Unable to download JSON metadata', |
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transform_source=None, |
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fatal=True): |
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json_string = self._download_webpage( |
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url_or_request, video_id, note, errnote, fatal=fatal) |
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if (not fatal) and json_string is False: |
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return None |
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if transform_source: |
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json_string = transform_source(json_string) |
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try: |
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return json.loads(json_string) |
|
except ValueError as ve: |
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errmsg = '%s: Failed to parse JSON ' % video_id |
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if fatal: |
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raise ExtractorError(errmsg, cause=ve) |
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else: |
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self.report_warning(errmsg + str(ve)) |
|
|
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def report_warning(self, msg, video_id=None): |
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idstr = '' if video_id is None else '%s: ' % video_id |
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self._downloader.report_warning( |
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'[%s] %s%s' % (self.IE_NAME, idstr, msg)) |
|
|
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def to_screen(self, msg): |
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"""Print msg to screen, prefixing it with '[ie_name]'""" |
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self._downloader.to_screen('[%s] %s' % (self.IE_NAME, msg)) |
|
|
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def report_extraction(self, id_or_name): |
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"""Report information extraction.""" |
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self.to_screen('%s: Extracting information' % id_or_name) |
|
|
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def report_download_webpage(self, video_id): |
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"""Report webpage download.""" |
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self.to_screen('%s: Downloading webpage' % video_id) |
|
|
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def report_age_confirmation(self): |
|
"""Report attempt to confirm age.""" |
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self.to_screen('Confirming age') |
|
|
|
def report_login(self): |
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"""Report attempt to log in.""" |
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self.to_screen('Logging in') |
|
|
|
# Methods for following #608 |
|
@staticmethod |
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def url_result(url, ie=None, video_id=None): |
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"""Returns a url that points to a page that should be processed""" |
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# TODO: ie should be the class used for getting the info |
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video_info = {'_type': 'url', |
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'url': url, |
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'ie_key': ie} |
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if video_id is not None: |
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video_info['id'] = video_id |
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return video_info |
|
|
|
@staticmethod |
|
def playlist_result(entries, playlist_id=None, playlist_title=None): |
|
"""Returns a playlist""" |
|
video_info = {'_type': 'playlist', |
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'entries': entries} |
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if playlist_id: |
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video_info['id'] = playlist_id |
|
if playlist_title: |
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video_info['title'] = playlist_title |
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return video_info |
|
|
|
def _search_regex(self, pattern, string, name, default=_NO_DEFAULT, fatal=True, flags=0, group=None): |
|
""" |
|
Perform a regex search on the given string, using a single or a list of |
|
patterns returning the first matching group. |
|
In case of failure return a default value or raise a WARNING or a |
|
RegexNotFoundError, depending on fatal, specifying the field name. |
|
""" |
|
if isinstance(pattern, (str, compat_str, compiled_regex_type)): |
|
mobj = re.search(pattern, string, flags) |
|
else: |
|
for p in pattern: |
|
mobj = re.search(p, string, flags) |
|
if mobj: |
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break |
|
|
|
if os.name != 'nt' and sys.stderr.isatty(): |
|
_name = '\033[0;34m%s\033[0m' % name |
|
else: |
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_name = name |
|
|
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if mobj: |
|
if group is None: |
|
# return the first matching group |
|
return next(g for g in mobj.groups() if g is not None) |
|
else: |
|
return mobj.group(group) |
|
elif default is not _NO_DEFAULT: |
|
return default |
|
elif fatal: |
|
raise RegexNotFoundError('Unable to extract %s' % _name) |
|
else: |
|
self._downloader.report_warning('unable to extract %s; ' |
|
'please report this issue on http://yt-dl.org/bug' % _name) |
|
return None |
|
|
|
def _html_search_regex(self, pattern, string, name, default=_NO_DEFAULT, fatal=True, flags=0, group=None): |
|
""" |
|
Like _search_regex, but strips HTML tags and unescapes entities. |
|
""" |
|
res = self._search_regex(pattern, string, name, default, fatal, flags, group) |
|
if res: |
|
return clean_html(res).strip() |
|
else: |
|
return res |
|
|
|
def _get_login_info(self): |
|
""" |
|
Get the the login info as (username, password) |
|
It will look in the netrc file using the _NETRC_MACHINE value |
|
If there's no info available, return (None, None) |
|
""" |
|
if self._downloader is None: |
|
return (None, None) |
|
|
|
username = None |
|
password = None |
|
downloader_params = self._downloader.params |
|
|
|
# Attempt to use provided username and password or .netrc data |
|
if downloader_params.get('username', None) is not None: |
|
username = downloader_params['username'] |
|
password = downloader_params['password'] |
|
elif downloader_params.get('usenetrc', False): |
|
try: |
|
info = netrc.netrc().authenticators(self._NETRC_MACHINE) |
|
if info is not None: |
|
username = info[0] |
|
password = info[2] |
|
else: |
|
raise netrc.NetrcParseError('No authenticators for %s' % self._NETRC_MACHINE) |
|
except (IOError, netrc.NetrcParseError) as err: |
|
self._downloader.report_warning('parsing .netrc: %s' % compat_str(err)) |
|
|
|
return (username, password) |
|
|
|
def _get_tfa_info(self): |
|
""" |
|
Get the two-factor authentication info |
|
TODO - asking the user will be required for sms/phone verify |
|
currently just uses the command line option |
|
If there's no info available, return None |
|
""" |
|
if self._downloader is None: |
|
return None |
|
downloader_params = self._downloader.params |
|
|
|
if downloader_params.get('twofactor', None) is not None: |
|
return downloader_params['twofactor'] |
|
|
|
return None |
|
|
|
# Helper functions for extracting OpenGraph info |
|
@staticmethod |
|
def _og_regexes(prop): |
|
content_re = r'content=(?:"([^>]+?)"|\'([^>]+?)\')' |
|
property_re = r'(?:name|property)=[\'"]og:%s[\'"]' % re.escape(prop) |
|
template = r'<meta[^>]+?%s[^>]+?%s' |
|
return [ |
|
template % (property_re, content_re), |
|
template % (content_re, property_re), |
|
] |
|
|
|
def _og_search_property(self, prop, html, name=None, **kargs): |
|
if name is None: |
|
name = 'OpenGraph %s' % prop |
|
escaped = self._search_regex(self._og_regexes(prop), html, name, flags=re.DOTALL, **kargs) |
|
if escaped is None: |
|
return None |
|
return unescapeHTML(escaped) |
|
|
|
def _og_search_thumbnail(self, html, **kargs): |
|
return self._og_search_property('image', html, 'thumbnail url', fatal=False, **kargs) |
|
|
|
def _og_search_description(self, html, **kargs): |
|
return self._og_search_property('description', html, fatal=False, **kargs) |
|
|
|
def _og_search_title(self, html, **kargs): |
|
return self._og_search_property('title', html, **kargs) |
|
|
|
def _og_search_video_url(self, html, name='video url', secure=True, **kargs): |
|
regexes = self._og_regexes('video') + self._og_regexes('video:url') |
|
if secure: |
|
regexes = self._og_regexes('video:secure_url') + regexes |
|
return self._html_search_regex(regexes, html, name, **kargs) |
|
|
|
def _og_search_url(self, html, **kargs): |
|
return self._og_search_property('url', html, **kargs) |
|
|
|
def _html_search_meta(self, name, html, display_name=None, fatal=False, **kwargs): |
|
if display_name is None: |
|
display_name = name |
|
return self._html_search_regex( |
|
r'''(?ix)<meta |
|
(?=[^>]+(?:itemprop|name|property)=(["\']?)%s\1) |
|
[^>]+content=(["\'])(?P<content>.*?)\1''' % re.escape(name), |
|
html, display_name, fatal=fatal, group='content', **kwargs) |
|
|
|
def _dc_search_uploader(self, html): |
|
return self._html_search_meta('dc.creator', html, 'uploader') |
|
|
|
def _rta_search(self, html): |
|
# See http://www.rtalabel.org/index.php?content=howtofaq#single |
|
if re.search(r'(?ix)<meta\s+name="rating"\s+' |
|
r' content="RTA-5042-1996-1400-1577-RTA"', |
|
html): |
|
return 18 |
|
return 0 |
|
|
|
def _media_rating_search(self, html): |
|
# See http://www.tjg-designs.com/WP/metadata-code-examples-adding-metadata-to-your-web-pages/ |
|
rating = self._html_search_meta('rating', html) |
|
|
|
if not rating: |
|
return None |
|
|
|
RATING_TABLE = { |
|
'safe for kids': 0, |
|
'general': 8, |
|
'14 years': 14, |
|
'mature': 17, |
|
'restricted': 19, |
|
} |
|
return RATING_TABLE.get(rating.lower(), None) |
|
|
|
def _twitter_search_player(self, html): |
|
return self._html_search_meta('twitter:player', html, |
|
'twitter card player') |
|
|
|
def _sort_formats(self, formats): |
|
if not formats: |
|
raise ExtractorError('No video formats found') |
|
|
|
def _formats_key(f): |
|
# TODO remove the following workaround |
|
from ..utils import determine_ext |
|
if not f.get('ext') and 'url' in f: |
|
f['ext'] = determine_ext(f['url']) |
|
|
|
preference = f.get('preference') |
|
if preference is None: |
|
proto = f.get('protocol') |
|
if proto is None: |
|
proto = compat_urllib_parse_urlparse(f.get('url', '')).scheme |
|
|
|
preference = 0 if proto in ['http', 'https'] else -0.1 |
|
if f.get('ext') in ['f4f', 'f4m']: # Not yet supported |
|
preference -= 0.5 |
|
|
|
if f.get('vcodec') == 'none': # audio only |
|
if self._downloader.params.get('prefer_free_formats'): |
|
ORDER = ['aac', 'mp3', 'm4a', 'webm', 'ogg', 'opus'] |
|
else: |
|
ORDER = ['webm', 'opus', 'ogg', 'mp3', 'aac', 'm4a'] |
|
ext_preference = 0 |
|
try: |
|
audio_ext_preference = ORDER.index(f['ext']) |
|
except ValueError: |
|
audio_ext_preference = -1 |
|
else: |
|
if self._downloader.params.get('prefer_free_formats'): |
|
ORDER = ['flv', 'mp4', 'webm'] |
|
else: |
|
ORDER = ['webm', 'flv', 'mp4'] |
|
try: |
|
ext_preference = ORDER.index(f['ext']) |
|
except ValueError: |
|
ext_preference = -1 |
|
audio_ext_preference = 0 |
|
|
|
return ( |
|
preference, |
|
f.get('language_preference') if f.get('language_preference') is not None else -1, |
|
f.get('quality') if f.get('quality') is not None else -1, |
|
f.get('height') if f.get('height') is not None else -1, |
|
f.get('width') if f.get('width') is not None else -1, |
|
ext_preference, |
|
f.get('tbr') if f.get('tbr') is not None else -1, |
|
f.get('vbr') if f.get('vbr') is not None else -1, |
|
f.get('abr') if f.get('abr') is not None else -1, |
|
audio_ext_preference, |
|
f.get('fps') if f.get('fps') is not None else -1, |
|
f.get('filesize') if f.get('filesize') is not None else -1, |
|
f.get('filesize_approx') if f.get('filesize_approx') is not None else -1, |
|
f.get('source_preference') if f.get('source_preference') is not None else -1, |
|
f.get('format_id'), |
|
) |
|
formats.sort(key=_formats_key) |
|
|
|
def http_scheme(self): |
|
""" Either "http:" or "https:", depending on the user's preferences """ |
|
return ( |
|
'http:' |
|
if self._downloader.params.get('prefer_insecure', False) |
|
else 'https:') |
|
|
|
def _proto_relative_url(self, url, scheme=None): |
|
if url is None: |
|
return url |
|
if url.startswith('//'): |
|
if scheme is None: |
|
scheme = self.http_scheme() |
|
return scheme + url |
|
else: |
|
return url |
|
|
|
def _sleep(self, timeout, video_id, msg_template=None): |
|
if msg_template is None: |
|
msg_template = '%(video_id)s: Waiting for %(timeout)s seconds' |
|
msg = msg_template % {'video_id': video_id, 'timeout': timeout} |
|
self.to_screen(msg) |
|
time.sleep(timeout) |
|
|
|
def _extract_f4m_formats(self, manifest_url, video_id): |
|
manifest = self._download_xml( |
|
manifest_url, video_id, 'Downloading f4m manifest', |
|
'Unable to download f4m manifest') |
|
|
|
formats = [] |
|
media_nodes = manifest.findall('{http://ns.adobe.com/f4m/1.0}media') |
|
for i, media_el in enumerate(media_nodes): |
|
tbr = int_or_none(media_el.attrib.get('bitrate')) |
|
format_id = 'f4m-%d' % (i if tbr is None else tbr) |
|
formats.append({ |
|
'format_id': format_id, |
|
'url': manifest_url, |
|
'ext': 'flv', |
|
'tbr': tbr, |
|
'width': int_or_none(media_el.attrib.get('width')), |
|
'height': int_or_none(media_el.attrib.get('height')), |
|
}) |
|
self._sort_formats(formats) |
|
|
|
return formats |
|
|
|
def _extract_m3u8_formats(self, m3u8_url, video_id, ext=None, |
|
entry_protocol='m3u8', preference=None): |
|
|
|
formats = [{ |
|
'format_id': 'm3u8-meta', |
|
'url': m3u8_url, |
|
'ext': ext, |
|
'protocol': 'm3u8', |
|
'preference': -1, |
|
'resolution': 'multiple', |
|
'format_note': 'Quality selection URL', |
|
}] |
|
|
|
format_url = lambda u: ( |
|
u |
|
if re.match(r'^https?://', u) |
|
else compat_urlparse.urljoin(m3u8_url, u)) |
|
|
|
m3u8_doc = self._download_webpage( |
|
m3u8_url, video_id, |
|
note='Downloading m3u8 information', |
|
errnote='Failed to download m3u8 information') |
|
last_info = None |
|
kv_rex = re.compile( |
|
r'(?P<key>[a-zA-Z_-]+)=(?P<val>"[^"]+"|[^",]+)(?:,|$)') |
|
for line in m3u8_doc.splitlines(): |
|
if line.startswith('#EXT-X-STREAM-INF:'): |
|
last_info = {} |
|
for m in kv_rex.finditer(line): |
|
v = m.group('val') |
|
if v.startswith('"'): |
|
v = v[1:-1] |
|
last_info[m.group('key')] = v |
|
elif line.startswith('#') or not line.strip(): |
|
continue |
|
else: |
|
if last_info is None: |
|
formats.append({'url': format_url(line)}) |
|
continue |
|
tbr = int_or_none(last_info.get('BANDWIDTH'), scale=1000) |
|
|
|
f = { |
|
'format_id': 'm3u8-%d' % (tbr if tbr else len(formats)), |
|
'url': format_url(line.strip()), |
|
'tbr': tbr, |
|
'ext': ext, |
|
'protocol': entry_protocol, |
|
'preference': preference, |
|
} |
|
codecs = last_info.get('CODECS') |
|
if codecs: |
|
# TODO: looks like video codec is not always necessarily goes first |
|
va_codecs = codecs.split(',') |
|
if va_codecs[0]: |
|
f['vcodec'] = va_codecs[0].partition('.')[0] |
|
if len(va_codecs) > 1 and va_codecs[1]: |
|
f['acodec'] = va_codecs[1].partition('.')[0] |
|
resolution = last_info.get('RESOLUTION') |
|
if resolution: |
|
width_str, height_str = resolution.split('x') |
|
f['width'] = int(width_str) |
|
f['height'] = int(height_str) |
|
formats.append(f) |
|
last_info = {} |
|
self._sort_formats(formats) |
|
return formats |
|
|
|
def _live_title(self, name): |
|
""" Generate the title for a live video """ |
|
now = datetime.datetime.now() |
|
now_str = now.strftime("%Y-%m-%d %H:%M") |
|
return name + ' ' + now_str |
|
|
|
def _int(self, v, name, fatal=False, **kwargs): |
|
res = int_or_none(v, **kwargs) |
|
if 'get_attr' in kwargs: |
|
print(getattr(v, kwargs['get_attr'])) |
|
if res is None: |
|
msg = 'Failed to extract %s: Could not parse value %r' % (name, v) |
|
if fatal: |
|
raise ExtractorError(msg) |
|
else: |
|
self._downloader.report_warning(msg) |
|
return res |
|
|
|
def _float(self, v, name, fatal=False, **kwargs): |
|
res = float_or_none(v, **kwargs) |
|
if res is None: |
|
msg = 'Failed to extract %s: Could not parse value %r' % (name, v) |
|
if fatal: |
|
raise ExtractorError(msg) |
|
else: |
|
self._downloader.report_warning(msg) |
|
return res |
|
|
|
def _set_cookie(self, domain, name, value, expire_time=None): |
|
cookie = compat_cookiejar.Cookie(0, name, value, None, None, domain, None, |
|
None, '/', True, False, expire_time, '', None, None, None) |
|
self._downloader.cookiejar.set_cookie(cookie) |
|
|
|
|
|
class SearchInfoExtractor(InfoExtractor): |
|
""" |
|
Base class for paged search queries extractors. |
|
They accept urls in the format _SEARCH_KEY(|all|[0-9]):{query} |
|
Instances should define _SEARCH_KEY and _MAX_RESULTS. |
|
""" |
|
|
|
@classmethod |
|
def _make_valid_url(cls): |
|
return r'%s(?P<prefix>|[1-9][0-9]*|all):(?P<query>[\s\S]+)' % cls._SEARCH_KEY |
|
|
|
@classmethod |
|
def suitable(cls, url): |
|
return re.match(cls._make_valid_url(), url) is not None |
|
|
|
def _real_extract(self, query): |
|
mobj = re.match(self._make_valid_url(), query) |
|
if mobj is None: |
|
raise ExtractorError('Invalid search query "%s"' % query) |
|
|
|
prefix = mobj.group('prefix') |
|
query = mobj.group('query') |
|
if prefix == '': |
|
return self._get_n_results(query, 1) |
|
elif prefix == 'all': |
|
return self._get_n_results(query, self._MAX_RESULTS) |
|
else: |
|
n = int(prefix) |
|
if n <= 0: |
|
raise ExtractorError('invalid download number %s for query "%s"' % (n, query)) |
|
elif n > self._MAX_RESULTS: |
|
self._downloader.report_warning('%s returns max %i results (you requested %i)' % (self._SEARCH_KEY, self._MAX_RESULTS, n)) |
|
n = self._MAX_RESULTS |
|
return self._get_n_results(query, n) |
|
|
|
def _get_n_results(self, query, n): |
|
"""Get a specified number of results for a query""" |
|
raise NotImplementedError("This method must be implemented by subclasses") |
|
|
|
@property |
|
def SEARCH_KEY(self): |
|
return self._SEARCH_KEY
|
|
|