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Code Issues Releases Activity

Also Download Highlight Cover Pictures

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Instaloader.download_highlights(), as well as the Instaloader CLI with
--highlight option, now also downloads the cover picture of each highlight.

This closes #323, where it was suggested.
This commit is contained in:
Alexander Graf 2020-03-01 17:41:58 +01:00
parent 534497bea5
commit fe258f1abb
1 changed files with 39 additions and 20 deletions
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59
instaloader/instaloader.py
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@ -358,42 +358,56 @@ class Instaloader:
self.context.log('geo', end=' ', flush=True)
@_retry_on_connection_error
def download_profilepic(self, profile: Profile, _attempt: int = 1) -> None:
"""Downloads and saves profile pic."""
def download_title_pic(self, url: str, target: Union[str, Path], name_suffix: str, owner_profile: Profile,
_attempt: int = 1) -> None:
"""Downloads and saves a picture that does not have an association with a Post or StoryItem, such as a
Profile picture or a Highlight cover picture. Modification time is taken from the HTTP response headers.
.. versionadded:: 4.3"""
def _epoch_to_string(epoch: datetime) -> str:
return epoch.strftime('%Y-%m-%d_%H-%M-%S_UTC')
profile_pic_response = self.context.get_raw(profile.profile_pic_url)
http_response = self.context.get_raw(url)
date_object = None # type: Optional[datetime]
if 'Last-Modified' in profile_pic_response.headers:
date_object = datetime.strptime(profile_pic_response.headers["Last-Modified"], '%a, %d %b %Y %H:%M:%S GMT')
profile_pic_bytes = None
profile_pic_identifier = _epoch_to_string(date_object)
if 'Last-Modified' in http_response.headers:
date_object = datetime.strptime(http_response.headers["Last-Modified"], '%a, %d %b %Y %H:%M:%S GMT')
pic_bytes = None
pic_identifier = _epoch_to_string(date_object)
else:
profile_pic_bytes = profile_pic_response.content
profile_pic_identifier = md5(profile_pic_bytes).hexdigest()[:16]
profile_pic_extension = 'jpg'
pic_bytes = http_response.content
pic_identifier = md5(pic_bytes).hexdigest()[:16]
pic_extension = 'jpg'
if ((format_string_contains_key(self.dirname_pattern, 'profile') or
format_string_contains_key(self.dirname_pattern, 'target'))):
filename = '{0}/{1}_profile_pic.{2}'.format(self.dirname_pattern.format(profile=profile.username.lower(),
target=profile.username.lower()),
profile_pic_identifier, profile_pic_extension)
filename = '{0}/{1}_{2}.{3}'.format(self.dirname_pattern.format(profile=owner_profile.username.lower(),
target=target),
pic_identifier, name_suffix, pic_extension)
else:
filename = '{0}/{1}_{2}_profile_pic.{3}'.format(self.dirname_pattern.format(), profile.username.lower(),
profile_pic_identifier, profile_pic_extension)
content_length = profile_pic_response.headers.get('Content-Length', None)
filename = '{0}/{1}_{2}_{3}.{4}'.format(self.dirname_pattern.format(), target,
pic_identifier, name_suffix, pic_extension)
content_length = http_response.headers.get('Content-Length', None)
if os.path.isfile(filename) and (not self.context.is_logged_in or
(content_length is not None and
os.path.getsize(filename) >= int(content_length))):
self.context.log(filename + ' already exists')
return None
os.makedirs(os.path.dirname(filename), exist_ok=True)
self.context.write_raw(profile_pic_bytes if profile_pic_bytes else profile_pic_response, filename)
self.context.write_raw(pic_bytes if pic_bytes else http_response, filename)
if date_object:
os.utime(filename, (datetime.now().timestamp(), date_object.timestamp()))
self.context.log('') # log output of _get_and_write_raw() does not produce \n
def download_profilepic(self, profile: Profile) -> None:
"""Downloads and saves profile pic."""
self.download_title_pic(profile.profile_pic_url, profile.username.lower(), 'profile_pic', profile)
def download_highlight_cover(self, highlight: Highlight, target: Union[str, Path]) -> None:
"""Downloads and saves Highlight cover picture.
.. versionadded:: 4.3"""
self.download_title_pic(highlight.cover_url, target, 'cover', highlight.owner_profile)
@_requires_login
def save_session_to_file(self, filename: Optional[str] = None) -> None:
"""Saves internally stored :class:`requests.Session` object.
@ -646,6 +660,9 @@ class Instaloader:
.. versionadded:: 4.1
.. versionchanged:: 4.3
Also downloads and saves the Highlight's cover pictures.
:param user: ID or Profile of the user whose highlights should get downloaded.
:param fast_update: If true, abort when first already-downloaded picture is encountered
:param filename_target: Replacement for {target} in dirname_pattern and filename_pattern
@ -655,7 +672,11 @@ class Instaloader:
"""
for user_highlight in self.get_highlights(user):
name = user_highlight.owner_username
highlight_target = (filename_target
if filename_target
else Path(name) / Path(user_highlight.title)) # type: Union[str, Path]
self.context.log("Retrieving highlights \"{}\" from profile {}".format(user_highlight.title, name))
self.download_highlight_cover(user_highlight, highlight_target)
totalcount = user_highlight.itemcount
count = 1
for item in user_highlight.get_items():
@ -666,9 +687,7 @@ class Instaloader:
count += 1
with self.context.error_catcher('Download highlights \"{}\" from user {}'.format(user_highlight.title,
name)):
downloaded = self.download_storyitem(item, filename_target
if filename_target
else Path(name) / Path(user_highlight.title))
downloaded = self.download_storyitem(item, highlight_target)
if fast_update and not downloaded:
break