fix!(parsing.tgraph): media upload to Telegraph no longer feasible

Details: https://t.me/durov/343

This partially reverts "feat(parsing/tgraph): upload media to Telegraph"
(2968401) and "docs(README):
highlights: media upload to Telegraph"
(b2d3efc).

Signed-off-by: Rongrong <[email protected]>

README.md

@@ -56,7 +56,6 @@
     - Automatically show the author-name (customizable)
     - Automatically split too-long messages
     - Messages can be sent as Telegraph posts (customizable)
-      - Most images and videos will be uploaded to Telegraph, so that Instant View will load rapidly
 - [Various customizable formatting settings](docs/formatting-settings.md)
     - Hashtags, custom title, etc.
 - Individual proxy settings for Telegram and RSS feeds

README.zh.md

@@ -56,7 +56,6 @@
     - 自动显示作者名 (可自定义)
     - 自动切分超长消息
     - 消息可作为 Telegraph 文章发送 (可自定义)
-      - 大部分图片和视频会被上传至 Telegraph，以便 Instant View 可迅速加载
 - [丰富的自定义格式设定](docs/formatting-settings.md)
     - Hashtag、自定义标题，等等
 - 为 Telegram 和 RSS 源配置独立的代理设置

docs/CHANGELOG.md

@@ -2,6 +2,10 @@
 
 ## Unreleased
 
+### BREAKING CHANGES
+
+Media (image and video) are no longer uploaded when generating Telegraph posts due to [Telegraph disabling media upload](https://t.me/durov/343). (first introduced in v2.6.0)
+
 ### Addition
 
 - **Disable TLS certificate verification**: The environment variable `VERIFY_TLS` has been added to disable (when set to `0`) or enable (when set to `1`, default) TLS certificate verification. This is useful when subscribing to feeds with their TLS misconfigured. Note: Disabling TLS certificate verification is not recommended and should only be used as a last resort.

docs/CHANGELOG.zh.md

@@ -2,6 +2,10 @@
 
 ## 未发布
 
+### 重大变更
+
+由于 [Telegraph 禁用了媒体上传](https://t.me/durov/343)，生成 Telegraph 文章时不再上传媒体 (图片与视频) 。(在 v2.6.0 中首次引入)
+
 ### 新增功能
 
 - **关闭 TLS 证书验证**: 环境变量 `VERIFY_TLS` 已被添加以禁用 (设置为 `0` 时) 或启用 (设置为 `1` 时，默认) TLS 证书验证。当订阅 TLS 被错误配置的 feed 时，这很有用。注意：不建议禁用 TLS 证书验证，只应用作最后手段。

src/parsing/tgraph.py

@@ -31,7 +31,7 @@
 
 from .. import env, log
 from .utils import is_emoticon, emojify, resolve_relative_link, isAbsoluteHttpLink
-from ..web.media import construct_weserv_url, upload_to_telegraph
+from ..web.media import construct_weserv_url
 from ..aio_helper import run_async
 
 convert_table_to_png: Optional[Awaitable]
@@ -309,18 +309,12 @@ async def generate_page(self):
                     if not isAbsoluteHttpLink(attr_content):
                         tag.replaceWithChildren()
                         continue
-                    if (
-                            tag.name in {'video', 'img'}
-                            and not attr_content.startswith(env.IMG_RELAY_SERVER)
-                            and not attr_content.startswith(env.IMAGES_WESERV_NL)
-                    ):
-                        if uploaded_url := await upload_to_telegraph(attr_content):
-                            attr_content = uploaded_url
-                        elif tag.name == 'video':
+                    if not attr_content.startswith(env.IMG_RELAY_SERVER):
+                        if tag.name == 'video':
                             attr_content = env.IMG_RELAY_SERVER + attr_content
-                        elif attr_content.split('.', 1)[1].split('/', 1)[0] == 'sinaimg.cn':
-                            attr_content = env.IMG_RELAY_SERVER + attr_content
-                        else:  # other images
+                        if tag.name == 'img' and not attr_content.startswith(env.IMAGES_WESERV_NL):
+                            if attr_content.split('.', 1)[1].split('/', 1)[0] == 'sinaimg.cn':
+                                attr_content = env.IMG_RELAY_SERVER + attr_content
                             attr_content = construct_weserv_url(attr_content)
                     tag.attrs = {attr_name: attr_content}