Adding ability to specify a custom post thumbnail. (#4425)

* Adding ability to specify a custom post thumbnail.

- Context: #4204

* Fixing ts-rs serialization.

* Fixing conversion, adding checks.

* Proxying custom_thumbnail. Fixed logic for update.

* Only generate metadata thumbnail is theres no custom thumbnail.
This commit is contained in:
Dessalines 2024-02-15 04:42:23 -05:00 committed by GitHub
parent 33989f5518
commit 3f7cc07b02
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3 changed files with 39 additions and 7 deletions

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@ -28,6 +28,9 @@ pub struct CreatePost {
pub honeypot: Option<String>,
pub nsfw: Option<bool>,
pub language_id: Option<LanguageId>,
#[cfg_attr(feature = "full", ts(type = "string"))]
/// Instead of fetching a thumbnail, use a custom one.
pub custom_thumbnail: Option<Url>,
}
#[derive(Debug, Serialize, Deserialize, Clone)]
@ -114,6 +117,9 @@ pub struct EditPost {
pub body: Option<String>,
pub nsfw: Option<bool>,
pub language_id: Option<LanguageId>,
#[cfg_attr(feature = "full", ts(type = "string"))]
/// Instead of fetching a thumbnail, use a custom one.
pub custom_thumbnail: Option<Url>,
}
#[derive(Debug, Serialize, Deserialize, Clone, Copy, Default, PartialEq, Eq, Hash)]

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@ -57,10 +57,12 @@ pub async fn create_post(
let data_url = data.url.as_ref();
let url = data_url.map(clean_url_params); // TODO no good way to handle a "clear"
let custom_thumbnail = data.custom_thumbnail.as_ref().map(clean_url_params);
is_valid_post_title(&data.name)?;
is_valid_body_field(&body, true)?;
check_url_scheme(&data.url)?;
check_url_scheme(&url)?;
check_url_scheme(&custom_thumbnail)?;
check_community_user_action(
&local_user_view.person,
@ -84,9 +86,17 @@ pub async fn create_post(
}
}
// Only generate the thumbnail if there's no custom thumbnail provided,
// otherwise it will save it in pictrs
let generate_thumbnail = custom_thumbnail.is_none();
// Fetch post links and pictrs cached image
let metadata = fetch_link_metadata_opt(url.as_ref(), true, &context).await;
let metadata = fetch_link_metadata_opt(url.as_ref(), generate_thumbnail, &context).await;
let url = proxy_image_link_opt_apub(url, &context).await?;
let thumbnail_url = proxy_image_link_opt_apub(custom_thumbnail, &context)
.await?
.map(Into::into)
.or(metadata.thumbnail);
// Only need to check if language is allowed in case user set it explicitly. When using default
// language, it already only returns allowed languages.
@ -121,7 +131,7 @@ pub async fn create_post(
.embed_description(metadata.opengraph_data.description)
.embed_video_url(metadata.opengraph_data.embed_video_url)
.language_id(language_id)
.thumbnail_url(metadata.thumbnail)
.thumbnail_url(thumbnail_url)
.build();
let inserted_post = Post::create(&mut context.pool(), &post_form)

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@ -43,6 +43,7 @@ pub async fn update_post(
// TODO No good way to handle a clear.
// Issue link: https://github.com/LemmyNet/lemmy/issues/2287
let url = data.url.as_ref().map(clean_url_params);
let custom_thumbnail = data.custom_thumbnail.as_ref().map(clean_url_params);
let slur_regex = local_site_to_slur_regex(&local_site);
check_slurs_opt(&data.name, &slur_regex)?;
@ -53,7 +54,8 @@ pub async fn update_post(
}
is_valid_body_field(&body, true)?;
check_url_scheme(&data.url)?;
check_url_scheme(&url)?;
check_url_scheme(&custom_thumbnail)?;
let post_id = data.post_id;
let orig_post = Post::read(&mut context.pool(), post_id).await?;
@ -70,10 +72,14 @@ pub async fn update_post(
Err(LemmyErrorType::NoPostEditAllowed)?
}
// Fetch post links and Pictrs cached image if url was updated
let (embed_title, embed_description, embed_video_url, thumbnail_url) = match &url {
// Fetch post links and thumbnail if url was updated
let (embed_title, embed_description, embed_video_url, metadata_thumbnail) = match &url {
Some(url) => {
let metadata = fetch_link_metadata(url, true, &context).await?;
// Only generate the thumbnail if there's no custom thumbnail provided,
// otherwise it will save it in pictrs
let generate_thumbnail = custom_thumbnail.is_none();
let metadata = fetch_link_metadata(url, generate_thumbnail, &context).await?;
(
Some(metadata.opengraph_data.title),
Some(metadata.opengraph_data.description),
@ -83,11 +89,21 @@ pub async fn update_post(
}
_ => Default::default(),
};
let url = match url {
Some(url) => Some(proxy_image_link_opt_apub(Some(url), &context).await?),
_ => Default::default(),
};
let custom_thumbnail = match custom_thumbnail {
Some(custom_thumbnail) => {
Some(proxy_image_link_opt_apub(Some(custom_thumbnail), &context).await?)
}
_ => Default::default(),
};
let thumbnail_url = custom_thumbnail.or(metadata_thumbnail);
let language_id = data.language_id;
CommunityLanguage::is_allowed_community_language(
&mut context.pool(),