debian/control: Mark compliance with Debian policy 4.2.0.

[youtubedl] / youtube_dl / update.py

diff --git a/youtube_dl/update.py b/youtube_dl/update.py
index eab8417a50da957bf5da8c6f6d739a63599e79f6..ebce9666a21465b53b93ccd0bd263b29349720a0 100644 (file)
--- a/youtube_dl/update.py
+++ b/youtube_dl/update.py
@@ -1,172 +1,187 @@
+from __future__ import unicode_literals
+
+import io

 import json
 import traceback
 import hashlib
 import json
 import traceback
 import hashlib

+import os
+import subprocess
+import sys

 from zipimport import zipimporter
 
 from zipimport import zipimporter
 

-from .utils import *
+from .utils import encode_compat_str
+

 from .version import __version__
 
 from .version import __version__
 

+

 def rsa_verify(message, signature, key):
 def rsa_verify(message, signature, key):

-    from struct import pack

     from hashlib import sha256
     from hashlib import sha256

-    from sys import version_info
-    def b(x):
-        if version_info[0] == 2: return x
-        else: return x.encode('latin1')
-    assert(type(message) == type(b('')))
-    block_size = 0
-    n = key[0]
-    while n:
-        block_size += 1
-        n >>= 8
-    signature = pow(int(signature, 16), key[1], key[0])
-    raw_bytes = []
-    while signature:
-        raw_bytes.insert(0, pack("B", signature & 0xFF))
-        signature >>= 8
-    signature = (block_size - len(raw_bytes)) * b('\x00') + b('').join(raw_bytes)
-    if signature[0:2] != b('\x00\x01'): return False
-    signature = signature[2:]
-    if not b('\x00') in signature: return False
-    signature = signature[signature.index(b('\x00'))+1:]
-    if not signature.startswith(b('\x30\x31\x30\x0D\x06\x09\x60\x86\x48\x01\x65\x03\x04\x02\x01\x05\x00\x04\x20')): return False
-    signature = signature[19:]
-    if signature != sha256(message).digest(): return False
-    return True
-
-def update_self(to_screen, verbose, filename):
+    assert isinstance(message, bytes)
+    byte_size = (len(bin(key[0])) - 2 + 8 - 1) // 8
+    signature = ('%x' % pow(int(signature, 16), key[1], key[0])).encode()
+    signature = (byte_size * 2 - len(signature)) * b'0' + signature
+    asn1 = b'3031300d060960864801650304020105000420'
+    asn1 += sha256(message).hexdigest().encode()
+    if byte_size < len(asn1) // 2 + 11:
+        return False
+    expected = b'0001' + (byte_size - len(asn1) // 2 - 3) * b'ff' + b'00' + asn1
+    return expected == signature
+
+
+def update_self(to_screen, verbose, opener):

     """Update the program file with the latest version from the repository"""
 
     """Update the program file with the latest version from the repository"""
 

-    UPDATE_URL = "http://rg3.github.io/youtube-dl/update/"
+    UPDATE_URL = 'https://rg3.github.io/youtube-dl/update/'

     VERSION_URL = UPDATE_URL + 'LATEST_VERSION'
     JSON_URL = UPDATE_URL + 'versions.json'
     UPDATES_RSA_KEY = (0x9d60ee4d8f805312fdb15a62f87b95bd66177b91df176765d13514a0f1754bcd2057295c5b6f1d35daa6742c3ffc9a82d3e118861c207995a8031e151d863c9927e304576bc80692bc8e094896fcf11b66f3e29e04e3a71e9a11558558acea1840aec37fc396fb6b65dc81a1c4144e03bd1c011de62e3f1357b327d08426fe93, 65537)
 
     VERSION_URL = UPDATE_URL + 'LATEST_VERSION'
     JSON_URL = UPDATE_URL + 'versions.json'
     UPDATES_RSA_KEY = (0x9d60ee4d8f805312fdb15a62f87b95bd66177b91df176765d13514a0f1754bcd2057295c5b6f1d35daa6742c3ffc9a82d3e118861c207995a8031e151d863c9927e304576bc80692bc8e094896fcf11b66f3e29e04e3a71e9a11558558acea1840aec37fc396fb6b65dc81a1c4144e03bd1c011de62e3f1357b327d08426fe93, 65537)
 

-
-    if not isinstance(globals().get('__loader__'), zipimporter) and not hasattr(sys, "frozen"):
-        to_screen(u'It looks like you installed youtube-dl with pip, setup.py or a tarball. Please use that to update.')
+    if not isinstance(globals().get('__loader__'), zipimporter) and not hasattr(sys, 'frozen'):
+        to_screen('It looks like you installed youtube-dl with a package manager, pip, setup.py or a tarball. Please use that to update.')

         return
 
     # Check if there is a new version
     try:
         return
 
     # Check if there is a new version
     try:

-        newversion = compat_urllib_request.urlopen(VERSION_URL).read().decode('utf-8').strip()
-    except:
-        if verbose: to_screen(compat_str(traceback.format_exc()))
-        to_screen(u'ERROR: can\'t find the current version. Please try again later.')
+        newversion = opener.open(VERSION_URL).read().decode('utf-8').strip()
+    except Exception:
+        if verbose:
+            to_screen(encode_compat_str(traceback.format_exc()))
+        to_screen('ERROR: can\'t find the current version. Please try again later.')

         return
     if newversion == __version__:
         return
     if newversion == __version__:

-        to_screen(u'youtube-dl is up-to-date (' + __version__ + ')')
+        to_screen('youtube-dl is up-to-date (' + __version__ + ')')

         return
 
     # Download and check versions info
     try:
         return
 
     # Download and check versions info
     try:

-        versions_info = compat_urllib_request.urlopen(JSON_URL).read().decode('utf-8')
+        versions_info = opener.open(JSON_URL).read().decode('utf-8')

         versions_info = json.loads(versions_info)
         versions_info = json.loads(versions_info)

-    except:
-        if verbose: to_screen(compat_str(traceback.format_exc()))
-        to_screen(u'ERROR: can\'t obtain versions info. Please try again later.')
+    except Exception:
+        if verbose:
+            to_screen(encode_compat_str(traceback.format_exc()))
+        to_screen('ERROR: can\'t obtain versions info. Please try again later.')

         return
         return

-    if not 'signature' in versions_info:
-        to_screen(u'ERROR: the versions file is not signed or corrupted. Aborting.')
+    if 'signature' not in versions_info:
+        to_screen('ERROR: the versions file is not signed or corrupted. Aborting.')

         return
     signature = versions_info['signature']
     del versions_info['signature']
     if not rsa_verify(json.dumps(versions_info, sort_keys=True).encode('utf-8'), signature, UPDATES_RSA_KEY):
         return
     signature = versions_info['signature']
     del versions_info['signature']
     if not rsa_verify(json.dumps(versions_info, sort_keys=True).encode('utf-8'), signature, UPDATES_RSA_KEY):

-        to_screen(u'ERROR: the versions file signature is invalid. Aborting.')
+        to_screen('ERROR: the versions file signature is invalid. Aborting.')
+        return
+
+    version_id = versions_info['latest']
+
+    def version_tuple(version_str):
+        return tuple(map(int, version_str.split('.')))
+    if version_tuple(__version__) >= version_tuple(version_id):
+        to_screen('youtube-dl is up to date (%s)' % __version__)

         return
 
         return
 

-    to_screen(u'Updating to version ' + versions_info['latest'] + '...')
-    version = versions_info['versions'][versions_info['latest']]
+    to_screen('Updating to version ' + version_id + ' ...')
+    version = versions_info['versions'][version_id]

 
     print_notes(to_screen, versions_info['versions'])
 
 
     print_notes(to_screen, versions_info['versions'])
 

+    # sys.executable is set to the full pathname of the exe-file for py2exe
+    filename = sys.executable if hasattr(sys, 'frozen') else sys.argv[0]
+

     if not os.access(filename, os.W_OK):
     if not os.access(filename, os.W_OK):

-        to_screen(u'ERROR: no write permissions on %s' % filename)
+        to_screen('ERROR: no write permissions on %s' % filename)

         return
 
     # Py2EXE
         return
 
     # Py2EXE

-    if hasattr(sys, "frozen"):
-        exe = os.path.abspath(filename)
+    if hasattr(sys, 'frozen'):
+        exe = filename

         directory = os.path.dirname(exe)
         if not os.access(directory, os.W_OK):
         directory = os.path.dirname(exe)
         if not os.access(directory, os.W_OK):

-            to_screen(u'ERROR: no write permissions on %s' % directory)
+            to_screen('ERROR: no write permissions on %s' % directory)

             return
 
         try:
             return
 
         try:

-            urlh = compat_urllib_request.urlopen(version['exe'][0])
+            urlh = opener.open(version['exe'][0])

             newcontent = urlh.read()
             urlh.close()
             newcontent = urlh.read()
             urlh.close()

-        except (IOError, OSError) as err:
-            if verbose: to_screen(compat_str(traceback.format_exc()))
-            to_screen(u'ERROR: unable to download latest version')
+        except (IOError, OSError):
+            if verbose:
+                to_screen(encode_compat_str(traceback.format_exc()))
+            to_screen('ERROR: unable to download latest version')

             return
 
         newcontent_hash = hashlib.sha256(newcontent).hexdigest()
         if newcontent_hash != version['exe'][1]:
             return
 
         newcontent_hash = hashlib.sha256(newcontent).hexdigest()
         if newcontent_hash != version['exe'][1]:

-            to_screen(u'ERROR: the downloaded file hash does not match. Aborting.')
+            to_screen('ERROR: the downloaded file hash does not match. Aborting.')

             return
 
         try:
             with open(exe + '.new', 'wb') as outf:
                 outf.write(newcontent)
             return
 
         try:
             with open(exe + '.new', 'wb') as outf:
                 outf.write(newcontent)

-        except (IOError, OSError) as err:
-            if verbose: to_screen(compat_str(traceback.format_exc()))
-            to_screen(u'ERROR: unable to write the new version')
+        except (IOError, OSError):
+            if verbose:
+                to_screen(encode_compat_str(traceback.format_exc()))
+            to_screen('ERROR: unable to write the new version')

             return
 
         try:
             bat = os.path.join(directory, 'youtube-dl-updater.bat')
             return
 
         try:
             bat = os.path.join(directory, 'youtube-dl-updater.bat')

-            b = open(bat, 'w')
-            b.write("""
-echo Updating youtube-dl...
+            with io.open(bat, 'w') as batfile:
+                batfile.write('''
+@echo off
+echo Waiting for file handle to be closed ...

 ping 127.0.0.1 -n 5 -w 1000 > NUL
 ping 127.0.0.1 -n 5 -w 1000 > NUL

-move /Y "%s.new" "%s"
-del "%s"
-            \n""" %(exe, exe, bat))
-            b.close()
-
-            os.startfile(bat)
-        except (IOError, OSError) as err:
-            if verbose: to_screen(compat_str(traceback.format_exc()))
-            to_screen(u'ERROR: unable to overwrite current version')
+move /Y "%s.new" "%s" > NUL
+echo Updated youtube-dl to version %s.
+start /b "" cmd /c del "%%~f0"&exit /b"
+                \n''' % (exe, exe, version_id))
+
+            subprocess.Popen([bat])  # Continues to run in the background
+            return  # Do not show premature success messages
+        except (IOError, OSError):
+            if verbose:
+                to_screen(encode_compat_str(traceback.format_exc()))
+            to_screen('ERROR: unable to overwrite current version')

             return
 
     # Zip unix package
     elif isinstance(globals().get('__loader__'), zipimporter):
         try:
             return
 
     # Zip unix package
     elif isinstance(globals().get('__loader__'), zipimporter):
         try:

-            urlh = compat_urllib_request.urlopen(version['bin'][0])
+            urlh = opener.open(version['bin'][0])

             newcontent = urlh.read()
             urlh.close()
             newcontent = urlh.read()
             urlh.close()

-        except (IOError, OSError) as err:
-            if verbose: to_screen(compat_str(traceback.format_exc()))
-            to_screen(u'ERROR: unable to download latest version')
+        except (IOError, OSError):
+            if verbose:
+                to_screen(encode_compat_str(traceback.format_exc()))
+            to_screen('ERROR: unable to download latest version')

             return
 
         newcontent_hash = hashlib.sha256(newcontent).hexdigest()
         if newcontent_hash != version['bin'][1]:
             return
 
         newcontent_hash = hashlib.sha256(newcontent).hexdigest()
         if newcontent_hash != version['bin'][1]:

-            to_screen(u'ERROR: the downloaded file hash does not match. Aborting.')
+            to_screen('ERROR: the downloaded file hash does not match. Aborting.')

             return
 
         try:
             with open(filename, 'wb') as outf:
                 outf.write(newcontent)
             return
 
         try:
             with open(filename, 'wb') as outf:
                 outf.write(newcontent)

-        except (IOError, OSError) as err:
-            if verbose: to_screen(compat_str(traceback.format_exc()))
-            to_screen(u'ERROR: unable to overwrite current version')
+        except (IOError, OSError):
+            if verbose:
+                to_screen(encode_compat_str(traceback.format_exc()))
+            to_screen('ERROR: unable to overwrite current version')

             return
 
             return
 

-    to_screen(u'Updated youtube-dl. Restart youtube-dl to use the new version.')
+    to_screen('Updated youtube-dl. Restart youtube-dl to use the new version.')
+

 
 def get_notes(versions, fromVersion):
     notes = []
 
 def get_notes(versions, fromVersion):
     notes = []

-    for v,vdata in sorted(versions.items()):
+    for v, vdata in sorted(versions.items()):

         if v > fromVersion:
             notes.extend(vdata.get('notes', []))
     return notes
 
         if v > fromVersion:
             notes.extend(vdata.get('notes', []))
     return notes
 

+

 def print_notes(to_screen, versions, fromVersion=__version__):
     notes = get_notes(versions, fromVersion)
     if notes:
 def print_notes(to_screen, versions, fromVersion=__version__):
     notes = get_notes(versions, fromVersion)
     if notes:

-        to_screen(u'PLEASE NOTE:')
+        to_screen('PLEASE NOTE:')

         for note in notes:
             to_screen(note)
         for note in notes:
             to_screen(note)