refactor common.py into 3 files

1 files changed, 153 insertions, 0 deletions

diff --git a/youtube/util.py b/youtube/util.py
new file mode 100644
index 0000000..2ebd8bc
--- /dev/null
+++ b/youtube/util.py
@@ -0,0 +1,153 @@
+import socks, sockshandler
+import gzip
+import brotli
+import urllib.parse
+import re
+import time
+import settings
+
+
+URL_ORIGIN = "/https://www.youtube.com"
+
+
+class HTTPAsymmetricCookieProcessor(urllib.request.BaseHandler):
+    '''Separate cookiejars for receiving and sending'''
+    def __init__(self, cookiejar_send=None, cookiejar_receive=None):
+        import http.cookiejar
+        self.cookiejar_send = cookiejar_send
+        self.cookiejar_receive = cookiejar_receive
+
+    def http_request(self, request):
+        if self.cookiejar_send is not None:
+            self.cookiejar_send.add_cookie_header(request)
+        return request
+
+    def http_response(self, request, response):
+        if self.cookiejar_receive is not None:
+            self.cookiejar_receive.extract_cookies(response, request)
+        return response
+
+    https_request = http_request
+    https_response = http_response
+
+
+def decode_content(content, encoding_header):
+    encodings = encoding_header.replace(' ', '').split(',')
+    for encoding in reversed(encodings):
+        if encoding == 'identity':
+            continue
+        if encoding == 'br':
+            content = brotli.decompress(content)
+        elif encoding == 'gzip':
+            content = gzip.decompress(content)
+    return content
+
+def fetch_url(url, headers=(), timeout=15, report_text=None, data=None, cookiejar_send=None, cookiejar_receive=None, use_tor=True):
+    '''
+    When cookiejar_send is set to a CookieJar object,
+     those cookies will be sent in the request (but cookies in response will not be merged into it)
+    When cookiejar_receive is set to a CookieJar object,
+     cookies received in the response will be merged into the object (nothing will be sent from it)
+    When both are set to the same object, cookies will be sent from the object,
+     and response cookies will be merged into it.
+    '''
+    headers = dict(headers)     # Note: Calling dict() on a dict will make a copy
+    headers['Accept-Encoding'] = 'gzip, br'
+
+    # prevent python version being leaked by urllib if User-Agent isn't provided
+    #  (urllib will use ex. Python-urllib/3.6 otherwise)
+    if 'User-Agent' not in headers and 'user-agent' not in headers and 'User-agent' not in headers:
+        headers['User-Agent'] = 'Python-urllib'
+
+    if data is not None:
+        if isinstance(data, str):
+            data = data.encode('ascii')
+        elif not isinstance(data, bytes):
+            data = urllib.parse.urlencode(data).encode('ascii')
+
+    start_time = time.time()
+
+
+    req = urllib.request.Request(url, data=data, headers=headers)
+
+    cookie_processor = HTTPAsymmetricCookieProcessor(cookiejar_send=cookiejar_send, cookiejar_receive=cookiejar_receive)
+
+    if use_tor and settings.route_tor:
+        opener = urllib.request.build_opener(sockshandler.SocksiPyHandler(socks.PROXY_TYPE_SOCKS5, "127.0.0.1", 9150), cookie_processor)
+    else:
+        opener = urllib.request.build_opener(cookie_processor)
+
+    response = opener.open(req, timeout=timeout)
+    response_time = time.time()
+
+
+    content = response.read()
+    read_finish = time.time()
+    if report_text:
+        print(report_text, '    Latency:', round(response_time - start_time,3), '    Read time:', round(read_finish - response_time,3))
+    content = decode_content(content, response.getheader('Content-Encoding', default='identity'))
+    return content
+
+mobile_user_agent = 'Mozilla/5.0 (iPhone; CPU iPhone OS 10_3_1 like Mac OS X) AppleWebKit/603.1.30 (KHTML, like Gecko) Version/10.0 Mobile/14E304 Safari/602.1'
+mobile_ua = (('User-Agent', mobile_user_agent),)
+desktop_user_agent = 'Mozilla/5.0 (Windows NT 6.1; rv:52.0) Gecko/20100101 Firefox/52.0'
+desktop_ua = (('User-Agent', desktop_user_agent),)
+
+
+
+
+
+
+
+
+
+
+def dict_add(*dicts):
+    for dictionary in dicts[1:]:
+        dicts[0].update(dictionary)
+    return dicts[0]
+
+def video_id(url):
+    url_parts = urllib.parse.urlparse(url)
+    return urllib.parse.parse_qs(url_parts.query)['v'][0]
+
+def default_multi_get(object, *keys, default):
+    ''' Like dict.get(), but for nested dictionaries/sequences, supporting keys or indices. Last argument is the default value to use in case of any IndexErrors or KeyErrors '''
+    try:
+        for key in keys:
+            object = object[key]
+        return object
+    except (IndexError, KeyError):
+        return default
+
+
+# default, sddefault, mqdefault, hqdefault, hq720
+def get_thumbnail_url(video_id):
+    return "/i.ytimg.com/vi/" + video_id + "/mqdefault.jpg"
+    
+def seconds_to_timestamp(seconds):
+    seconds = int(seconds)
+    hours, seconds = divmod(seconds,3600)
+    minutes, seconds = divmod(seconds,60)
+    if hours != 0:
+        timestamp = str(hours) + ":"
+        timestamp += str(minutes).zfill(2)  # zfill pads with zeros
+    else:
+        timestamp = str(minutes)
+
+    timestamp += ":" + str(seconds).zfill(2)
+    return timestamp
+
+
+
+def update_query_string(query_string, items):
+    parameters = urllib.parse.parse_qs(query_string)
+    parameters.update(items)
+    return urllib.parse.urlencode(parameters, doseq=True)
+
+
+
+def uppercase_escape(s):
+     return re.sub(
+         r'\\U([0-9a-fA-F]{8})',
+         lambda m: chr(int(m.group(1), base=16)), s)
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