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[tumblr] pre-compile regular expressions

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This commit is contained in:
Mike Fährmann
2022-09-13 17:50:48 +02:00
parent 73a52a95b0
commit 7a799df17f
1 changed files with 27 additions and 23 deletions
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50
gallery_dl/extractor/tumblr.py
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@@ -14,17 +14,6 @@ from datetime import datetime, timedelta
import re
def _original_video(url):
return re.sub(
(r"https?://((?:vt|vtt|ve)(?:\.media)?\.tumblr\.com"
r"/tumblr_[^_]+)_\d+\.([0-9a-z]+)"),
r"https://\1.\2", url
)
POST_TYPES = frozenset((
"text", "quote", "link", "answer", "video", "audio", "photo", "chat"))
BASE_PATTERN = (
r"(?:tumblr:(?:https?://)?([^/]+)|"
r"(?:https?://)?"
@@ -32,6 +21,9 @@ BASE_PATTERN = (
r"([\w-]+\.tumblr\.com)))"
)
POST_TYPES = frozenset((
"text", "quote", "link", "answer", "video", "audio", "photo", "chat"))
class TumblrExtractor(Extractor):
"""Base class for tumblr extractors"""
@@ -71,6 +63,18 @@ class TumblrExtractor(Extractor):
def items(self):
blog = None
# pre-compile regular expressions
self._sub_video = re.compile(
r"https?://((?:vt|vtt|ve)(?:\.media)?\.tumblr\.com"
r"/tumblr_[^_]+)_\d+\.([0-9a-z]+)").sub
if self.inline:
self._sub_image = re.compile(
r"https?://(\d+\.media\.tumblr\.com(?:/[0-9a-f]+)?"
r"/tumblr(?:_inline)?_[^_]+)_\d+\.([0-9a-z]+)").sub
self._subn_orig_image = re.compile(r"/s\d+x\d+/").subn
_findall_image = re.compile('<img src="([^"]+)"').findall
_findall_video = re.compile('<source src="([^"]+)"').findall
for post in self.posts():
if self.date_min > post["timestamp"]:
return
@@ -112,7 +116,7 @@ class TumblrExtractor(Extractor):
if self.original and "/s2048x3072/" in photo["url"] and (
photo["width"] == 2048 or photo["height"] == 3072):
photo["url"] = self._original_image(photo["url"])
photo["url"] = self._original_photo(photo["url"])
del photo["original_size"]
del photo["alt_sizes"]
@@ -126,17 +130,18 @@ class TumblrExtractor(Extractor):
url = post.get("video_url") # type "video"
if url:
posts.append(self._prepare(_original_video(url), post.copy()))
posts.append(self._prepare(
self._original_video(url), post.copy()))
if self.inline and "reblog" in post: # inline media
# only "chat" posts are missing a "reblog" key in their
# API response, but they can't contain images/videos anyway
body = post["reblog"]["comment"] + post["reblog"]["tree_html"]
for url in re.findall('<img src="([^"]+)"', body):
for url in _findall_image(body):
url = self._original_inline_image(url)
posts.append(self._prepare_image(url, post.copy()))
for url in re.findall('<source src="([^"]+)"', body):
url = _original_video(url)
for url in _findall_video(body):
url = self._original_video(url)
posts.append(self._prepare(url, post.copy()))
if self.external: # external links
@@ -212,20 +217,19 @@ class TumblrExtractor(Extractor):
def _skip_reblog_same_blog(self, post):
return self.blog != post.get("reblogged_root_uuid")
def _original_image(self, url):
def _original_photo(self, url):
return self._update_image_token(
url.replace("/s2048x3072/", "/s99999x99999/", 1))
def _original_inline_image(self, url):
if self.original:
url, n = re.subn(r"/s\d+x\d+/", "/s99999x99999/", url, 1)
url, n = self._subn_orig_image("/s99999x99999/", url, 1)
if n:
return self._update_image_token(url)
return re.sub(
(r"https?://(\d+\.media\.tumblr\.com(?:/[0-9a-f]+)?"
r"/tumblr(?:_inline)?_[^_]+)_\d+\.([0-9a-z]+)"),
r"https://\1_1280.\2", url
)
return self._sub_image(r"https://\1_1280.\2", url)
def _original_video(self, url):
return self._sub_video(r"https://\1.\2", url)
def _update_image_token(self, url):
headers = {"Accept": "text/html,*/*;q=0.8"}