fix(zh.copymanga, zh.relamanhua, ru.desu): send Accept: application/json on JSON API requests

sources/ru.desu/res/source.json

@@ -2,7 +2,7 @@
 	"info": {
 		"id": "ru.desu",
 		"name": "Desu",
-		"version": 7,
+		"version": 8,
 		"url": "https://desu.uno",
 		"contentRating": 2,
 		"languages": [

sources/ru.desu/src/helpers.rs

@@ -29,6 +29,12 @@ pub fn apply_headers(request: Request) -> Request {
 		)
 }
 
+/// The `/api/...` endpoints return JSON; pin `Accept` so a content-negotiating
+/// backend never answers these requests with an HTML page.
+pub fn apply_api_headers(request: Request) -> Request {
+	apply_headers(request).header("Accept", "application/json")
+}
+
 fn format_errors(errors: Option<Vec<DesuError>>) -> String {
 	errors
 		.map(|errs| {
@@ -43,7 +49,7 @@ fn format_errors(errors: Option<Vec<DesuError>>) -> String {
 
 pub fn fetch_by_id(id: &str) -> Result<DesuItem> {
 	let url = format!("{}/{}", get_base_api_url(), id);
-	let response = apply_headers(Request::get(url)?).json_owned::<DesuMangaResponse>()?;
+	let response = apply_api_headers(Request::get(url)?).json_owned::<DesuMangaResponse>()?;
 
 	if let Some(res) = response.manga {
 		Ok(res)
@@ -58,7 +64,7 @@ pub fn fetch_by_id(id: &str) -> Result<DesuItem> {
 
 pub fn fetch_chapters(id: &str) -> Result<Vec<DesuChapter>> {
 	let url = format!("{}/{}/chapters", get_base_api_url(), id);
-	let response = apply_headers(Request::get(url)?).json_owned::<DesuChaptersResponse>()?;
+	let response = apply_api_headers(Request::get(url)?).json_owned::<DesuChaptersResponse>()?;
 
 	if let Some(chapters) = response.chapters {
 		Ok(chapters
@@ -81,7 +87,7 @@ pub fn fetch_chapter_pages(manga_id: &str, chapter_id: &str) -> Result<Vec<Strin
 		manga_id,
 		chapter_id
 	);
-	let response = apply_headers(Request::get(url)?).json_owned::<DesuChapterResponse>()?;
+	let response = apply_api_headers(Request::get(url)?).json_owned::<DesuChapterResponse>()?;
 
 	if let Some(chapter) = response.chapter {
 		Ok(chapter

sources/ru.desu/src/ranobe.rs

@@ -1,5 +1,5 @@
 use crate::auth::{AuthedRequest, require_login};
-use crate::helpers::{apply_headers, get_base_url};
+use crate::helpers::{apply_api_headers, apply_headers, get_base_url};
 use crate::keys::{ranobe_key, ranobe_slug};
 use crate::models::{DesuChapter, DesuChaptersResponse};
 use crate::settings::{eng_title, path_on_site, ranobe_cover_preview, rewrite_media_url};
@@ -229,7 +229,7 @@ fn chapter_id_from_api_view_url(
 
 fn fetch_ranobe_chapter_records(book_id: &str) -> Result<Vec<DesuChapter>> {
 	let url = format!("{}/api/ranobe/{book_id}/chapters", get_base_url());
-	let response = apply_headers(Request::get(url)?).send()?;
+	let response = apply_api_headers(Request::get(url)?).send()?;
 	if response.status_code() >= 400 {
 		bail!(
 			"HTTP {} while fetching Ranobe chapter list",
@@ -570,7 +570,7 @@ pub fn fetch_ranobe_chapter_pages(slug: &str, chapter: &Chapter) -> Result<Vec<P
 	let base = get_base_url();
 	let title_url = format!("{base}/ranobe/{slug}/");
 	let referer = chapter.url.as_deref().unwrap_or(title_url.as_str());
-	let response = apply_headers(Request::get(url)?)
+	let response = apply_api_headers(Request::get(url)?)
 		.header("Referer", referer)
 		.send()?;
 	if response.status_code() == 401 {

sources/zh.copymanga/res/source.json

@@ -3,7 +3,7 @@
 		"id": "zh.copymanga",
 		"name": "拷貝漫畫",
 		"altNames": ["拷贝漫画"],
-		"version": 23,
+		"version": 24,
 		"urls": [
 			"https://www.copy5000.com",
 			"https://www.copy4000.com",

sources/zh.copymanga/src/auth.rs

@@ -112,6 +112,7 @@ pub fn login(username: &str, password: &str) -> Result<()> {
 			"application/x-www-form-urlencoded;charset=UTF-8",
 		)
 		.header("X-Requested-With", "XMLHttpRequest")
+		.header("Accept", "application/json")
 		.body(body)
 		.send()?;
 

sources/zh.copymanga/src/favorites.rs

@@ -77,9 +77,15 @@ fn to_manga(comic: CollectComic) -> Manga {
 fn fetch_collect_page(page: i32) -> Result<MangaPageResult> {
 	let url = collect_page_url(&base_url()?, page);
 
-	let mut response = Request::get(&url)?.authed()?.send()?;
+	let mut response = Request::get(&url)?
+		.authed()?
+		.header("Accept", "application/json")
+		.send()?;
 	if response.status_code() == 401 && try_relogin() {
-		response = Request::get(&url)?.authed()?.send()?;
+		response = Request::get(&url)?
+			.authed()?
+			.header("Accept", "application/json")
+			.send()?;
 	}
 	if response.status_code() == 401 {
 		bail!("登入已失效，請重新在設定中登入");
@@ -429,6 +435,7 @@ fn set_collect_once(url: &str, body: &str) -> CollectWriteAttempt {
 				"application/x-www-form-urlencoded;charset=UTF-8",
 			)
 			.header("X-Requested-With", "XMLHttpRequest")
+			.header("Accept", "application/json")
 			.header("Cookie", &format!("token={token}"))
 			.header("Authorization", &format!("Token {token}"))
 			.body(body)

sources/zh.copymanga/src/net.rs

@@ -40,11 +40,17 @@ impl Url<'_> {
 
 	pub fn request(&self) -> Result<Request> {
 		let url = self.to_string()?;
-		let request = Request::get(url)?.header(
+		let mut request = Request::get(url)?.header(
 			"User-Agent",
 			"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) \
 			 AppleWebKit/605.1.15 (KHTML, like Gecko) Version/26.0.1 Safari/605.1.15",
 		);
+		// The API endpoints content-negotiate (Django REST framework): without an
+		// explicit `Accept` header, hosts that inject a browser header suite get
+		// the browsable-API HTML page instead of the JSON envelope.
+		if self.is_search() || self.is_chapter_list() {
+			request.set_header("Accept", "application/json");
+		}
 		Ok(request)
 	}
 

sources/zh.relamanhua/res/source.json

@@ -2,7 +2,7 @@
 	"info": {
 		"id": "zh.relamanhua",
 		"name": "熱辣漫畫",
-		"version": 2,
+		"version": 3,
 		"urls": [
 			"https://www.manga2026.com",
 			"https://www.manga2025.com",

sources/zh.relamanhua/src/net/mod.rs

@@ -36,6 +36,13 @@ impl Url<'_> {
 			 AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.5 Safari/605.1.15",
 		);
 
+		// The API endpoints content-negotiate (Django REST framework): without an
+		// explicit `Accept` header, hosts that inject a browser header suite get
+		// the browsable-API HTML page instead of the JSON envelope.
+		if self.is_search() || self.is_chapter_list() {
+			request.set_header("Accept", "application/json");
+		}
+
 		if self.is_chapter_list() {
 			request.set_header("dnts", "1");
 		}