New source: Procomic (replaces MangaPro/ProChan) by bakali1 · Pull Request #18067 · keiyoushi/extensions-source

bakali1 · 2026-07-29T01:43:26Z

Complete rewrite of the former MangaPro/ProChan extension as a new KeiSource (libVersion = "1.6"). The site and its API changed significantly — the old codebase was no longer salvageable, so this was built from scratch against the current API.

Changes

Added src/ar/procomic/ with full implementation:
REST API integration (/api/public/content, /api/public/series/search, /api/public/{type}/{id})
Search with filters (type, sort, year, status)
Popular / Latest updates
Manga details and chapter listing
Page list via Next.js RSC extraction + AVIF-to-JPEG transcoding via ImageDecoder
Mirror support (procomic.pro / procomic.net) via baseUrl { mirrors(...) }
Cookie interceptor for language/safety preferences
Deeplink handling for /series/... URLs

In relations:

open #14571 ( Source request (AR): ProChan )
Closes #16185 ( remove mangapro / prochan)

Checklist:

Updated versionCode value in build.gradle.kts
Updated baseVersionCode in build.gradle.kts (if updated multisrc theme code)
Referenced all related issues in the PR body (e.g. "Closes #xyz")
Set the contentWarning configuration in build.gradle.kts appropriately
Have not changed source names
Have explicitly kept the id if a source's name or language were changed
Have tested the modifications by compiling and running the extension through Android Studio
Have removed web_hi_res_512.png when adding a new extension
This PR is AI-assisted, I have reviewed the changes manually and confirmed they are not slop

AwkwardPeak7 · 2026-07-29T08:03:19Z

+        return SManga.create().also {
+            it.url = "/series/$type/$id/$slug"
+        }
+    }


check domain too

Thanks for the review!

I'll add the domain check. Quick question though — I was planning to use this:
kotlin

if (url.host != baseUrl.toHttpUrl().host) {
return null
}

But Prochan has mirrors, so I'm not sure how to handle those. Is it worth adding a list of allowed mirror domains, or should I just stick with the main one?

Honestly, it's probably not a big deal since the main website is what users actually use — the mirrors are just redirects anyway. But I added it as a mirror because the API requests work through it too.

What do you think? Should I keep it simple with just the main domain, or build out a mirror list?

it's fine, or if the mirror isn't really used, you can remove the mirror from extension entirely

- Use client.get()/parseAs helpers instead of GET/await - Remove local Json instance, use shared parseAs - Replace SimpleDateFormat/tryParse with Instant.parseOrNull - Use firstInstanceOrNull instead of filterIsInstance - Remove broad try-catch in searchApi - Convert data class DTOs to regular class - Replace Calendar with Year.now() in Filters - Capitalize extension name in build.gradle.kts - Remove unused import - Use baseUrl mirrors DSL with versionId - Fix ambiguous it-shadowing in genre builder

Add network interceptor that decodes image/avif responses via tachiyomi.decoder.ImageDecoder and re-encodes as JPEG, preventing BitmapRegionDecoder crash during tall image splitting on pre-API30.

- Drop `supportsLatest = true` (default in KeiSource) - Remove AVIF-to-JPEG interceptor and ImageDecoder dependency — app handles AVIF natively - Remove empty `configureHeaders` override - Remove `CacheControl.FORCE_NETWORK` from search requests - Add host check in `getMangaByUrl` to reject cross-domain URLs - Store type/slug/seriesId/chapterNumber in `memo` instead of encoding them in URL paths; use `/$id` as the canonical URL - Add `getChapterUrl()` to reconstruct full chapter URLs from memo - Return both manga details and chapters unconditionally in `getMangaDetails`

bakali1 · 2026-07-30T02:37:41Z

I used the extention for some time reading some Mangas I discovered some bugs I will try to fix
changes to be made :

chapters missing images
the manga url should lead to the manga when clicking open in web view

dear reviewer am sorry for wasting your time dealing with this source

I will try my best to fix the issue

AwkwardPeak7 · 2026-07-30T10:21:35Z

+        return SManga.create().also {
+            it.url = "/series/$type/$id/$slug"
+        }
+    }


it's fine, or if the mirror isn't really used, you can remove the mirror from extension entirely

AwkwardPeak7 · 2026-07-30T10:21:56Z

+        val id = segs[off + 2]
+        val slug = segs[off + 3]
+        return SManga.create().also {
+            it.url = "/$id"


no need to prefix with "/"

I’ll remove the prefix as well, and I won’t change the manga URL structure (/series/$type/$id/$slug) since that’s how it’s set on the website. That way, when you open it in the WebView, you can see your manga.

override getMangaUrl and getChapterUrl for webview urls

AwkwardPeak7 · 2026-07-30T10:22:29Z

+    override suspend fun getPageList(chapter: SChapter): List<Page> {
+        val response = client.get(getChapterUrl(chapter), headersBuilder().set("rsc", "1").build())
+        return response.extractNextJs<ChapterImages>()?.appImages?.mapIndexed { i, img ->
+            Page(i, imageUrl = img.mobile ?: img.desktop ?: "")


Suggested change

Page(i, imageUrl = img.mobile ?: img.desktop ?: "")

Page(i, imageUrl = img.mobile ?: img.desktop!!)

shouldn't be empty

thanks, i will apply it the change

AwkwardPeak7 · 2026-07-30T10:23:20Z

+    }
+    override fun getChapterUrl(chapter: SChapter): String {
+        val m = chapter.memo
+        return "$baseUrl/series/${m["type"]!!.jsonPrimitive.content}/${m["seriesId"]!!.jsonPrimitive.content}/${m["slug"]!!.jsonPrimitive.content}/${chapter.url.removePrefix("/")}/${m["chapterNumber"]!!.jsonPrimitive.content}"


Suggested change

return "$baseUrl/series/${m["type"]!!.jsonPrimitive.content}/${m["seriesId"]!!.jsonPrimitive.content}/${m["slug"]!!.jsonPrimitive.content}/${chapter.url.removePrefix("/")}/${m["chapterNumber"]!!.jsonPrimitive.content}"

return "$baseUrl/series/${m["type"]!!.string}/${m["seriesId"]!!.string}/${m["slug"]!!.string}/${chapter.url.removePrefix("/")}/${m["chapterNumber"]!!.string}"

use JsonElement helper utils

thank u for the review , i didn't know that exist i will use it instead of the current method

bakali1 · 2026-08-01T00:48:31Z

Correction to my earlier reply where I said the site no longer uses scrambled pages.

That was incorrect. Some chapters are still served as scrambled pages, which is what caused the "chapters missing images" bug I reported. This has been fixed in the latest commits.

I've verified the fix on a real device, and the affected chapters now load every page correctly.

I also discovered that some series are hidden behind the site's "Safe Browsing" setting. Guests can't disable this setting, so getPageList now throws an error for those series instead of returning an empty page list, making the issue much easier to identify.

That said, the site seems to change every couple of weeks. I suspect they're preparing or promoting their official app and are intentionally making the website harder to scrape. At this point, I'm considering marking this source as a draft because it may not be worth constantly chasing their frequent changes and debugging their ever-changing anti-scraping measures.

and thank you AwkwardPeak7 so much for giving me advises and being friendly and patient with me
i have learned a lot of thing building this extension after it i will try doing some more of the issues

AwkwardPeak7 · 2026-08-02T12:56:48Z

+        )
+    }
+
+    val rscHeaders by lazy { headersBuilder().add("rsc", "1").build() }


Suggested change

val rscHeaders by lazy { headersBuilder().add("rsc", "1").build() }

val rscHeaders get() = headersBuilder().add("rsc", "1").build()

AwkwardPeak7 · 2026-08-02T12:59:05Z

+        val payload = buildJsonObject { put("url", cdnUrl) }.toJsonString()
+            .toRequestBody("application/json".toMediaType())


Suggested change

val payload = buildJsonObject { put("url", cdnUrl) }.toJsonString()

.toRequestBody("application/json".toMediaType())

val payload = buildJsonObject { put("url", cdnUrl) }.toJsonRequestBody()

AwkwardPeak7 · 2026-08-02T12:59:25Z

+        val response = client.post("$baseUrl/api/cdn-image/sign", rscheaders, payload)
+
+        if (!response.isSuccessful) {
+            response.close()


client.post ensures http success

AwkwardPeak7 · 2026-08-02T13:00:44Z

promoting their official app

perhaps you can sniff the api of the app and use it ;)

AwkwardPeak7 requested changes Jul 29, 2026

View reviewed changes

bakali1 added 6 commits July 29, 2026 18:32

feat: add procomic.net / procomic.pro extension with working filters

6008261

fix procomic: gzip parsing, title init, genre exclude bug

ce5ee6a

procomic: strip dead DTOs, genre/tag filters, fix description shadow

7ad4951

Fix AVIF download crash on Android 10 by converting AVIF to JPEG

ae5028e

Add network interceptor that decodes image/avif responses via tachiyomi.decoder.ImageDecoder and re-encodes as JPEG, preventing BitmapRegionDecoder crash during tall image splitting on pre-API30.

bakali1 force-pushed the procomic branch from fe3ccd4 to e4f23fd Compare July 29, 2026 17:32

bakali1 requested a review from AwkwardPeak7 July 29, 2026 18:56

AwkwardPeak7 reviewed Jul 30, 2026

View reviewed changes

bakali1 added 2 commits July 31, 2026 21:45

procomic: support scrambled maps via chapter-map-proxy-plan

8711415

procomic: clarify safe browsing block, use sign response DTOs

823a149

AwkwardPeak7 reviewed Aug 2, 2026

View reviewed changes

	Page(i, imageUrl = img.mobile ?: img.desktop ?: "")
	Page(i, imageUrl = img.mobile ?: img.desktop!!)

	return "$baseUrl/series/${m["type"]!!.jsonPrimitive.content}/${m["seriesId"]!!.jsonPrimitive.content}/${m["slug"]!!.jsonPrimitive.content}/${chapter.url.removePrefix("/")}/${m["chapterNumber"]!!.jsonPrimitive.content}"
	return "$baseUrl/series/${m["type"]!!.string}/${m["seriesId"]!!.string}/${m["slug"]!!.string}/${chapter.url.removePrefix("/")}/${m["chapterNumber"]!!.string}"

	val rscHeaders by lazy { headersBuilder().add("rsc", "1").build() }
	val rscHeaders get() = headersBuilder().add("rsc", "1").build()

		val payload = buildJsonObject { put("url", cdnUrl) }.toJsonString()
		.toRequestBody("application/json".toMediaType())

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bakali1 commented Jul 29, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

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bakali1 commented Jul 30, 2026

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bakali1 commented Aug 1, 2026

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AwkwardPeak7 commented Aug 2, 2026

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bakali1 commented Jul 29, 2026 •

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