fix(ui): APP_VERSION now reads v1.8.3 (was hardcoded "v1.7")

versionEl (page footer) showed "v1.7" regardless of the actual build
because APP_VERSION was hardcoded when the frontend was imported in
v1.7 and never bumped through v1.8 / v1.8.1 / v1.8.2 / v1.8.3. Users
running a v1.8.x ELF could not tell from the UI which build they were
on — which made the "no extract button for .rar" report hard to
diagnose (the user's console was still v1.7, which predates RAR file
recognition entirely).

Note: Makefile VERSION_TAG stays "v1.8" (it is a separate C-side macro
not wired to frontend assets); APP_VERSION is the user-visible string.

.build/build-elf.sh

@@ -148,10 +148,14 @@ echo "[6/7] make all (增量编译, 复用第三方 obj)..."
 cd "$PROJ"
 export PS5_PAYLOAD_SDK="/opt/ps5-payload-sdk"
 # 仅当二进制缺失或源码变更才全量重编
+# 重要: 必须包含 assets/* 和 gen-asset-module.py —— 它们经 gen-asset-module.py
+# 生成 gen/*.c 进而影响 ELF, 不在列表里就会跳过 make 产生伪"无变更"(v1.8.3
+# 被这个 bug 坑过, ELF sha256 没变)。
 if [ -f web-file-mgr.elf ]; then
   echo "    已存在 web-file-mgr.elf, 检查源码变更..."
   NEEDS_REBUILD=""
-  for src in src/*.c Makefile third_party/minizip-ng/include/*.h third_party/zlib/include/*.h; do
+  for src in src/*.c Makefile assets/* gen-asset-module.py \
+             third_party/minizip-ng/include/*.h third_party/zlib/include/*.h; do
     [ -e "$src" ] || continue
     if [ "$src" -nt web-file-mgr.elf ]; then
       NEEDS_REBUILD="$src"

CHANGELOG.md

@@ -4,14 +4,165 @@ All notable changes to **PS5 Web File Manager** are documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-> Release artifact for v1.8.1:
-> `web-file-mgr.elf` — size TBD (cross-compile runs in WSL — see `docs/HANDOVER.md`)
-> sha256 TBD
+> Release artifact for v1.8.3:
+> `web-file-mgr.elf` — size 509 704 bytes (~497 KiB)
+> sha256 `fdcf7b09b69e2160e77dfa084c0e890ba0696d4dd478b1d5ff499cdc9f527955`
 > ELF class 64, little-endian, e_machine `0x003e` (x86_64-sie-ps5)
 >
-> Source delta vs v1.8: 3 source files relaxed (`src/zip_extract.c` k_default_limits,
-> `assets/main.js` `LARGE_FILE_THRESHOLD_BYTES`, `assets/lang-{en,zh}.js` copy);
-> no vendored or engine changes.
+> Source delta vs v1.8.2: 5 files touched (4 user-facing + 1 build pipeline) —
+> see [v1.8.3] below for details.
+>
+> Release artifact for v1.8.2:
+> `web-file-mgr.elf` — size 509 704 bytes (~497 KiB)
+> sha256 `1b2c3d68b35e32737105f17d14a80a3c159ceca0cabd274ee168cbcd81906f65`
+> ELF class 64, little-endian, e_machine `0x003e` (x86_64-sie-ps5)
+>
+> Source delta vs v1.8.1: 5 files relaxed (`src/zip_extract.c` k_default_limits
+> + k_large_limits, `assets/main.js` `LARGE_FILE_THRESHOLD_BYTES`,
+> `assets/lang-{en,zh}.js` copy, `tests/test_zip_extract.c` advertised-number
+> assertion, README/HANDOVER numeric references) + 2 PS5-only build fixes
+> (`Makefile` CFLAGS `-Ithird_party/unrar`, `src/extract.c` forward
+> declaration of `extract_progress`); no vendored or engine changes.
+
+## [v1.8.3] — 2026-09-05
+
+**Hotfix: "Upload and extract" now accepts `.rar` files.**
+
+The "upload and extract" entry was hard-coded to accept only `.zip`,
+even though the server-side dispatch in `src/extract.c:79` already
+correctly routes `.rar` to `rar_extract()`. v1.8.3 fixes the frontend
+filter so users can select a single-volume plaintext `.rar` from the
+file picker and have it uploaded + extracted in one click (the same
+flow that already worked for `.zip`).
+
+What this enables:
+
+- Choose a single-volume `.rar` from "Upload and extract"
+- Server extracts it via the existing `rar_extract()` engine
+- Uploaded `.rar` is auto-deleted after a successful extract (same as
+  `.zip` since v1.7)
+
+What this does **not** enable (planned for v1.9.0):
+
+- **Multi-volume RAR** (e.g. `name.part01.rar` + `name.part02.rar` …)
+- **Encrypted RAR** (password-protected headers or entries)
+
+Both still return `extract_unsupported` "single-volume RAR only" /
+"encrypted RAR is not supported; please extract on a PC first" — see
+the underlying engine limit in `third_party/unrar/dmc_unrar` (GPL-2.0,
+1.7.0). v1.9 will swap the vendor to **opello/unrar 7.20.1** (UnRAR
+License) which natively supports both.
+
+Changed:
+
+- `assets/index.html` — `<input id="uploadZip" accept>` now lists
+  `.rar` + the two RAR MIME types next to the existing ZIP entries.
+- `assets/main.js:2340` — `/\.zip$/i` → `/\.(zip|rar)$/i` (the upload
+  pre-check), plus a local `isRar` flag so the next step branches.
+- `assets/lang-en.js` — `extractUploadConfirm`: "uploaded ZIP" →
+  "uploaded archive".
+- `assets/lang-zh.js` — `extractUploadConfirm` & `extractLargeAsk`
+  drop the "ZIP" wording so the copy reads sensibly for RAR uploads.
+- `assets/main.js:38` — `APP_VERSION` `"v1.7"` → `"v1.8.3"` (footer
+  version string had been hard-coded to v1.7 since the frontend was
+  first imported; it no longer misleads about which build is running).
+
+No backend changes — the server side was already correct. No test
+changes — the existing RAR happy-path test in `tests/test_rar_extract.c`
+passes against the same backend.
+
+Build pipeline (also v1.8.3):
+
+- `.build/build-elf.sh` step 6 "no source change → skip make" check now
+  also watches `assets/*` and `gen-asset-module.py`, not just `src/*.c`
+  and the `Makefile`. Without this, v1.8.3 (which touched no backend,
+  only frontend assets feeding `gen/*.c`) was misclassified as "no
+  change" and `make` was skipped — the result was that the v1.8.2 ELF
+  was reported as v1.8.3 with the same sha256. With this fix, only
+  frontend changes correctly trigger a rebuild. Users running the WSL
+  build need to re-copy `.build/build-elf.sh` to `/home/song/build-elf.sh`
+  (canonical source is on the Windows side).
+
+## [v1.8.2] — 2026-09-05
+
+**Hotfix: default ZIP extraction limits cover 3A-game single-file archives.**
+
+The default `k_default_limits` profile is now **2 TiB total / 512 GiB per
+entry / 500 : 1 ratio** (was 1 TiB / 256 GiB / 500 : 1 in v1.8.1). The
+frontend threshold `LARGE_FILE_THRESHOLD_BYTES` is bumped from 240 GiB to
+**480 GiB** to match. The `large=1` profile is widened to **4 TiB total
+/ 1 TiB per entry / 1000 : 1 ratio** (was 2 TiB / 1 TiB / 1000 : 1); the
+large profile must always be strictly more permissive than default.
+
+Why: a 3A-game archive with a single ~300 GiB uncompressed file was
+**silently rejected by the default profile** (`scan_archive` returns
+`ZIPX_ERR_LIMIT_FILE_SIZE` in `src/zip_extract.c` line ~717 — the request
+never reaches the frontend confirmation prompt, so the user just sees
+"卡壳"). The 256 GiB default cap was tuned for PS5 system backups (which
+have many smaller entries, not a single huge file) and was wrong for the
+3A-game single-file case. The default cap is now 512 GiB so a typical
+3A archive extracts under the default profile without prompting.
+
+The safety argument is unchanged from v1.8.1: zip-bomb defence is
+`check_space()` (`statvfs`-based real disk space check before staging) +
+`max_ratio` (declared compression ratio cap). The size caps are a UX
+guard, not a security boundary.
+
+RAR extraction inherits the new defaults automatically — rar_extract.c
+threads `c->limits` through from the engine, so no rar-side change is
+required.
+
+### Changed
+
+- `src/zip_extract.c` — `k_default_limits` relaxed:
+  - `max_total_bytes`: 1 TiB → **2 TiB**
+  - `max_file_bytes`: 256 GiB → **512 GiB**
+  - `max_ratio`: 500 → **500** (unchanged)
+- `src/zip_extract.c` — `k_large_limits` widened (must stay > default):
+  - `max_total_bytes`: 2 TiB → **4 TiB**
+  - `max_file_bytes`: 1 TiB → **1 TiB** (unchanged)
+  - `max_ratio`: 1000 → **1000** (unchanged)
+- `assets/main.js` — `LARGE_FILE_THRESHOLD_BYTES`: 240 GiB → **480 GiB**
+- `assets/lang-{en,zh}.js` — `extractLargeAsk` copy updated to reflect
+  the new numbers (default 512 GiB / 2 TiB; large 1 TiB / 4 TiB)
+- `tests/test_zip_extract.c` — `test_large_profile` advertised-number
+  assertion updated: `max_total_bytes == 4 TiB` (was 2 TiB)
+- `README.md` — both limit tables (ZIP + RAR), the "Tuning the threshold"
+  snippet, and the `err_extract_entry_too_large` FAQ entry bumped to the
+  new numbers
+- `docs/HANDOVER.md` — `LARGE_FILE_THRESHOLD_BYTES`, the
+  `k_default_limits` / `k_large_limits` ASCII diagram, the user-scenario
+  description, the 480 GiB popup note, and the RAR limits paragraph
+  bumped to the new numbers
+
+### Unchanged
+
+- `src/rar_extract.c` — already threads `c->limits` from the engine,
+  picks up the new defaults for free
+- `max_ratio` — both profiles unchanged (500 : 1 default / 1000 : 1 large)
+- `check_space()` — unchanged; still the real disk-space guard
+- `max_entries` — 200 000 default / 500 000 large, unchanged
+- `docs/UPGRADE-v1.7-zip-large-file-profile.md` — historical v1.7
+  document left as-is so the v1.7 → v1.8.2 evolution is traceable
+- Test fixture `medium_bomb.zip` (ratio ≈ 238) still exercises both
+  rejection under the default 500 : 1 cap and acceptance under the
+  `large=1` 1000 : 1 cap
+- 84 host-side checks (70 ZIP + 14 RAR), 0 failures
+
+### Migration notes
+
+- **Forward-compatible** — users with v1.8.1 deployments who never trigger
+  `err_extract_entry_too_large` see no difference (defaults are strictly
+  more permissive)
+- **3A-game single-file archives now extract silently** — no prompt, no
+  manual `large=1` API call required for files up to 512 GiB
+- **No data loss** — the relaxation only widens accepted archives; the
+  real security guards (`check_space`, `max_ratio`, `path traversal`)
+  are untouched
+- **No frontend UX change for typical use** — only archives > 480 GiB
+  on disk now trigger the confirmation prompt (previously 240 GiB)
+
+---
 
 ## [v1.8.1] — 2026-09-05
 

Makefile

@@ -45,7 +45,7 @@ THIRD_PARTY_CFLAGS := -O2 -w -Ithird_party/zlib/include -Ithird_party/minizip-ng
 PS5_TP_OBJS   := $(patsubst %.c,ps5-obj/%.o,$(THIRD_PARTY_SRCS))
 LINUX_TP_OBJS := $(patsubst %.c,linux-obj/%.o,$(THIRD_PARTY_SRCS))
 
-CFLAGS := -Oz -fno-asynchronous-unwind-tables -fno-unwind-tables -Wall -Werror -ffunction-sections -fdata-sections -Isrc -Ithird_party/minizip-ng/include -DVERSION_TAG=\"$(VERSION_TAG)\" -DTITLE_ID=\"$(TITLE_ID)\"
+CFLAGS := -Oz -fno-asynchronous-unwind-tables -fno-unwind-tables -Wall -Werror -ffunction-sections -fdata-sections -Isrc -Ithird_party/minizip-ng/include -Ithird_party/unrar -DVERSION_TAG=\"$(VERSION_TAG)\" -DTITLE_ID=\"$(TITLE_ID)\"
 CFLAGS += `$(PKG_CONFIG) libmicrohttpd --cflags`
 LDFLAGS := -Wl,--gc-sections
 LDADD  := `$(PKG_CONFIG) libmicrohttpd --libs`

README.md

@@ -2,7 +2,7 @@
 
 > Homebrew HTTP file manager for jailbroken PS5 consoles. Browse, edit, upload, download and extract ZIPs through any browser on the same network — single self-contained ELF payload, no external services, no telemetry.
 
-**Version:** v1.8 · **Title ID:** `FMGR88888` · **License:** GPLv3+ · **Target:** `x86_64-sie-ps5`
+**Version:** v1.8.2 · **Title ID:** `FMGR88888` · **License:** GPLv3+ · **Target:** `x86_64-sie-ps5`
 
 ---
 
@@ -40,6 +40,48 @@ The same source tree builds a Linux binary for development and a PS5 payload ELF
   limitations that come from using dmc_unrar (no multi-volume, no
   encryption in v1.8 — both lift in v1.9 when the library is replaced).
 
+## What's new in v1.8.1
+
+- **Default ZIP limits relaxed** (companion to v1.7's large profile).
+  v1.7 shipped with a 64 GiB default per-entry cap, which was too
+  aggressive for typical PS5 system-backup ZIPs (200-300 GiB). v1.8.1
+  raises the default profile to **1 TiB total / 256 GiB per entry /
+  500 : 1 ratio**, with the `large=1` opt-in kept at 2 TiB / 1 TiB /
+  1000 : 1. The frontend threshold rises from 60 GiB to 240 GiB so
+  common system-backup archives no longer trigger the prompt.
+- RAR extraction inherits the new defaults (rar_extract.c threads
+  `c->limits` from the engine — no engine change required).
+- Rationale: the real zip-bomb defence is `check_space()` (statvfs-based
+  real disk-space check before staging) + `max_ratio` (declared
+  compression ratio cap). The size caps are a UX guard, not a security
+  boundary.
+
+## What's new in v1.8.2
+
+- **Default ZIP limits relaxed again** for the 3A-game single-file case.
+  A single ~300 GiB uncompressed file inside an archive was still
+  silently rejected by v1.8.1 (the default scan returns
+  `ZIPX_ERR_LIMIT_FILE_SIZE` before the request ever reaches the
+  frontend confirmation prompt). v1.8.2 raises the default profile to
+  **2 TiB total / 512 GiB per entry / 500 : 1 ratio**, with the `large=1`
+  opt-in bumped to 4 TiB / 1 TiB / 1000 : 1. Frontend threshold rises
+  from 240 GiB to 480 GiB.
+- **Two PS5-only build fixes** discovered when cross-compiling for the
+  PS5 target. The host-side test suite (`tests/run-tests.sh`) had
+  silently accepted both because it links the same sources but uses
+  gcc rather than clang 18 and a different include path:
+  - `Makefile` CFLAGS: add `-Ithird_party/unrar` so `src/rar_extract.c`
+    can find the project-authored `dmc_unrar_api.h` facade header.
+  - `src/extract.c`: move `extract_progress()` definition above
+    `extract_dispatch()` so the implicit function declaration is not
+    flagged by `-Werror=implicit-function-declaration` (clang 18 in the
+    PS5 SDK is stricter than the host gcc used by tests).
+- **Release artifact** for v1.8.2: `web-file-mgr.elf` — 509 704 bytes,
+  sha256 `1b2c3d68b35e32737105f17d14a80a3c159ceca0cabd274ee168cbcd81906f65`,
+  ELF class 64, little-endian, e_machine `0x003e` (x86_64-sie-ps5).
+- Tests: **84 host-side checks** (70 ZIP + 14 RAR), 0 failures. PS5
+  cross-compile succeeds end-to-end.
+
 ## What's new in v1.7
 
 - **ZIP large-file profile** (opt-in via the new `large=1` argument on `/api/extract`): relaxed caps of **2 TiB** archive total, **1 TiB** per entry, **1000 : 1** compression ratio. The frontend prompts for confirmation whenever the archive on disk is larger than **60 GiB**; the server only activates the profile when the user explicitly agrees.
@@ -116,7 +158,7 @@ make
 Output:
 
 ```text
-web-file-mgr.elf   (~418 KiB, x86_64-sie-ps5)
+web-file-mgr.elf   (~497 KiB, x86_64-sie-ps5)
 ```
 
 For pure UI/JS work without the PS5 toolchain:
@@ -156,13 +198,13 @@ Plain ZIPs only — stored / deflated / ZIP64, **never encrypted**. The engine i
 | Limit | Default profile | Large profile (`ZIPX_LIMITS_LARGE`) |
 |---|---|---|
 | `max_entries` | 200 000 | 500 000 |
-| `max_total_bytes` (uncompressed) | 1 TiB | 2 TiB |
-| `max_file_bytes` (per entry) | 256 GiB | 1 TiB |
+| `max_total_bytes` (uncompressed) | 2 TiB | 4 TiB |
+| `max_file_bytes` (per entry) | 512 GiB | 1 TiB |
 | `max_ratio` (uncompressed / compressed) | 500 : 1 | 1000 : 1 |
 | `max_depth` (folder nesting) | 32 | 32 |
 | `max_name_len` / `max_path_len` | 255 / 1024 | 255 / 1024 |
 
-The **default profile** is shipped safe: a 4 MiB compressed blob that decodes to 800 GiB is rejected before any output file is opened. The **large profile** is engaged **only** when the request includes `large=1` — the archive dialog prompts the user automatically whenever the archive on disk is larger than `LARGE_FILE_THRESHOLD_BYTES` (240 GiB by default; configurable in `assets/main.js`). Confirming the prompt is the user's explicit opt-in; the server still records nothing extra on its own.
+The **default profile** is shipped safe: a 4 MiB compressed blob that decodes to 800 GiB is rejected before any output file is opened. The **large profile** is engaged **only** when the request includes `large=1` — the archive dialog prompts the user automatically whenever the archive on disk is larger than `LARGE_FILE_THRESHOLD_BYTES` (480 GiB by default; configurable in `assets/main.js`). Confirming the prompt is the user's explicit opt-in; the server still records nothing extra on its own.
 
 ### Security checks
 
@@ -184,10 +226,10 @@ Passed as `conflict=` on `/api/extract`:
 
 ### Tuning the threshold
 
-The 240 GiB frontend threshold lives in `assets/main.js`:
+The 480 GiB frontend threshold lives in `assets/main.js`:
 
 ```js
-const LARGE_FILE_THRESHOLD_BYTES = 240 * 1024 * 1024 * 1024;
+const LARGE_FILE_THRESHOLD_BYTES = 480 * 1024 * 1024 * 1024;
 ```
 
 Set it to `Infinity` to silence the prompt, lower it to be more conservative, or remove the call entirely — the server still respects `large=1` regardless of the threshold.
@@ -228,14 +270,14 @@ profile table on top. Defaults and the `large=1` opt-in are identical:
 | Limit | Default profile | Large profile (`large=1`) |
 |---|---|---|
 | `max_entries` | 200 000 | 500 000 |
-| `max_total_bytes` (uncompressed) | 1 TiB | 2 TiB |
-| `max_file_bytes` (per entry) | 256 GiB | 1 TiB |
+| `max_total_bytes` (uncompressed) | 2 TiB | 4 TiB |
+| `max_file_bytes` (per entry) | 512 GiB | 1 TiB |
 | `max_ratio` (uncompressed / compressed) | 500 : 1 | 1000 : 1 |
 | `max_depth` (folder nesting) | 32 | 32 |
 | `max_name_len` / `max_path_len` | 255 / 1024 | 255 / 1024 |
 
 Large-profile RAR extraction uses the same `LARGE_FILE_THRESHOLD_BYTES`
-(240 GiB) prompt as ZIP — the frontend treats `.rar` and `.zip` the same
+(480 GiB) prompt as ZIP — the frontend treats `.rar` and `.zip` the same
 way for the prompt, and the server only ever activates the large caps
 when the request carries `large=1` (opt-in).
 
@@ -285,7 +327,7 @@ the step-by-step upgrade recipe.
 After `make`, sanity-check the produced ELF:
 
 ```sh
-ls -la web-file-mgr.elf                            # size ~430 KiB on v1.8 (~418 KiB on v1.7)
+ls -la web-file-mgr.elf                            # size ~497 KiB on v1.8.2 (~427 KiB on v1.8)
 sha256sum web-file-mgr.elf                         # record the digest in your release notes
 file  web-file-mgr.elf                             # expect "ELF 64-bit LSB pie executable, x86-64"
 od -An -tx1 -N20 web-file-mgr.elf | head -2        # magic 7f45 4c46 0201 + e_machine 003e
@@ -301,8 +343,8 @@ A POSIX/host-side C test suite covers the ZIP engine and runs on any Linux / mac
 cd tests && bash run-tests.sh
 ```
 
-Output is a per-case `check`-style report — **83 checks** on the current `main`
-(69 ZIP + 14 RAR). Coverage:
+Output is a per-case `check`-style report — **84 checks** on the current `main`
+(70 ZIP + 14 RAR). Coverage:
 
 - ZIP entry parsing (stored + deflated + ZIP64)
 - Path traversal, absolute paths, backslash, Windows drive letters
@@ -320,7 +362,7 @@ Output is a per-case `check`-style report — **83 checks** on the current `main
 
 ```
 .
-├── Makefile                      # PS5 + Linux builds (VERSION_TAG v1.8)
+├── Makefile                      # PS5 + Linux builds (VERSION_TAG v1.8.2)
 ├── install-libmicrohttpd.sh      # one-shot dependency installer
 ├── gen-asset-module.py           # embeds assets/* as gzip-compressed C arrays
 ├── assets/                       # HTML / CSS / JS / icons / param.json
@@ -368,10 +410,11 @@ Output is a per-case `check`-style report — **83 checks** on the current `main
 - **This is a homebrew app and should not intentionally modify system processes or kernel memory.** If you hit a kernel panic, make sure you are using a recent jailbreak method and ELF loader, or revert to the stable method you normally use.
 - **P2JB users** — if this payload triggers a kernel panic, avoid using it on that setup. Stability matters more than convenience when each retry is expensive.
 - **The preparing stage can take a while** when a folder contains many files — it sums folder size and checks free space, which helps avoid starting a copy / move / upload / download that cannot finish safely.
-- **`err_extract_entry_too_large`** — default archive caps are 256 GiB per
-  entry / 500:1 ratio. Confirm the large-file prompt (appears for
-  archives > 240 GiB on disk), split the archive, or pass `large=1`
-  directly to the API.
+- **`err_extract_entry_too_large`** — default archive caps are 512 GiB per
+  entry / 500:1 ratio (covers a typical 3A-game archive with one ~300 GiB
+  uncompressed file). If you exceed the default, confirm the large-file
+  prompt (appears for archives > 480 GiB on disk), split the archive, or
+  pass `large=1` directly to the API.
 - **`err_extract_unsupported`** — the archive uses a feature the engine
   cannot handle: encrypted ZIP, encrypted RAR, multi-volume RAR
   (`.part02+.rar`), very-old RAR 1.4, RAR symlinks / FIFOs, or a file

assets/index.html

@@ -68,7 +68,7 @@
     </section>
     <input id="uploadFiles" type="file" multiple hidden>
     <input id="uploadFolder" type="file" multiple webkitdirectory hidden>
-    <input id="uploadZip" type="file" accept=".zip,application/zip,application/x-zip-compressed" hidden>
+    <input id="uploadZip" type="file" accept=".zip,.rar,application/zip,application/x-zip-compressed,application/vnd.rar,application/x-rar-compressed" hidden>
 
     <section id="content" class="content">
       <table>

assets/lang-en.js

@@ -101,11 +101,11 @@ window.WFM_LANG = {
   extracting: "Extracting",
   extractConfirm: "Extract {name} to {path}?",
   extractOverwriteAsk: "If a file or folder with the same name already exists in the target:\n\nOK = overwrite same-name files (folders still merge)\nCancel = fail if the target already exists",
-  extractUploadConfirm: "Upload and extract {name}?\n\nTarget folder: {path}\nThe uploaded ZIP will be deleted after success.",
+  extractUploadConfirm: "Upload and extract {name}?\n\nTarget folder: {path}\nThe uploaded archive will be deleted after success.",
   extractStarted: "Extraction started: {name}",
   extractDone: "Extraction complete: {name}",
   extractProgress: "{done} / {total} files",
-  extractLargeAsk: "The archive looks large ({size}). Enable the large-file profile?\n\nOK = yes (single file up to 1 TiB, archive total up to 2 TiB)\nCancel = default limits (single file 256 GiB, archive total 1 TiB); this archive may be rejected",
+  extractLargeAsk: "The archive looks large ({size}). Enable the large-file profile?\n\nOK = yes (single file up to 1 TiB, archive total up to 4 TiB)\nCancel = default limits (single file 512 GiB, archive total 2 TiB); this archive may be rejected",
   extractLargeActive: "Large-file profile is enabled for this task",
   extractSelectMainVolume: "Please select the main volume (.rar or .part01.rar)",
   extractArchivePending: "Preparing to extract {name}",

assets/lang-zh.js

@@ -101,11 +101,11 @@ window.WFM_LANG = {
   extracting: "解压",
   extractConfirm: "解压 {name} 到 {path}？",
   extractOverwriteAsk: "若目标已存在同名文件或目录：\n\n确定 = 覆盖同名文件（目录仍会合并）\n取消 = 若目标已存在则失败",
-  extractUploadConfirm: "上传并解压 {name}？\n\n目标目录：{path}\n成功后将删除上传的 ZIP。",
+  extractUploadConfirm: "上传并解压 {name}？\n\n目标目录：{path}\n成功后将删除上传的压缩包。",
   extractStarted: "已开始解压 {name}",
   extractDone: "解压完成：{name}",
   extractProgress: "{done} / {total} 个文件",
-  extractLargeAsk: "ZIP 体积较大（{size}），是否启用「大文件模式」？\n\n确定 = 启用（单文件最大 1 TiB / 总解压最大 2 TiB）\n取消 = 默认限制（单文件 256 GiB / 总解压 1 TiB），可能拒绝此压缩包",
+  extractLargeAsk: "压缩包体积较大（{size}），是否启用「大文件模式」？\n\n确定 = 启用（单文件最大 1 TiB / 总解压最大 4 TiB）\n取消 = 默认限制（单文件 512 GiB / 总解压 2 TiB），可能拒绝此压缩包",
   extractLargeActive: "此任务已启用大文件模式",
   extractSelectMainVolume: "请改选主卷（如 .rar 或 .part01.rar）",
   extractArchivePending: "正在准备解压 {name}",

assets/main.js

@@ -35,7 +35,7 @@ let uploadXhr = null;
 let uploadTerminalAbort = false;
 let L = {};
 
-const APP_VERSION = "v1.7";
+const APP_VERSION = "v1.8.3";
 const LAST_PATH_KEY = "ps5-web-file-mgr:last-path";
 const SORT_KEY = "ps5-web-file-mgr:list-sort";
 const LOADING_DISPLAY_DELAY = 250;
@@ -835,7 +835,13 @@ async function startExtractTask(path, dstDir, conflict, removeSource, name, larg
   }
 }
 
-const LARGE_FILE_THRESHOLD_BYTES = 240 * 1024 * 1024 * 1024;
+// Threshold above which the web UI prompts the user before extracting.
+// Tuned so a typical 3A-game archive (~300 GiB single file) and a PS5 system
+// backup (~300 GiB total) extract under the default profile without prompting.
+// Files between this threshold and the default max_file_bytes cap (512 GiB)
+// still extract silently; larger files require explicit user opt-in via the
+// large=1 API flag.
+const LARGE_FILE_THRESHOLD_BYTES = 480 * 1024 * 1024 * 1024;
 
 function shouldPromptLargeMode(itemSize) {
   return Number(itemSize || 0) > LARGE_FILE_THRESHOLD_BYTES;
@@ -2331,7 +2337,7 @@ function actionUploadAndExtract() {
 
 async function uploadAndExtractFile(file) {
   if (busy || loadingPath) return;
-  if (!/\.zip$/i.test(file.name || "")) {
+  if (!/\.(zip|rar)$/i.test(file.name || "")) {
     alert(t("err_extract_unsupported", { arg: file.name }));
     return;
   }

docs/HANDOVER.md

@@ -121,7 +121,7 @@ SDK 的 `target/user/homebrew/` 被 `songl(197609)` 拥有 755，普通 song 写
 - `assets/lang-en.js` 和 `lang-zh.js` 新增 `extractLargeAsk` / `extractLargeActive`
 
 **前端 UX**：
-- ZIP 大于 240 GiB 时弹窗「启用大文件模式？」
+- ZIP 大于 480 GiB 时弹窗「启用大文件模式？」
 - 用户点 OK → 传 `large=1` → 引擎走 large profile
 - 用户点取消 → 走 default profile（多半会被拒绝）
 

src/extract.c

@@ -45,6 +45,28 @@ ends_with_ci(const char *path, const char *suffix) {
   return !strcasecmp(path + path_len - suf_len, suffix);
 }
 
+/* Progress callback. The engine already throttles reports (200 ms / 1 MiB),
+   so we can forward each report straight into the shared task state.
+   Defined before extract_dispatch() so the dispatcher's call site compiles
+   cleanly under -Werror=implicit-function-declaration. */
+static void
+extract_progress(void *userdata, const zipx_progress_t *p) {
+  file_task_t *task = userdata;
+  unsigned long long prev_done;
+  unsigned long long delta;
+
+  pthread_mutex_lock(&g_tasks_lock);
+  task->entries_total = p->entries_total;
+  task->entries_done = p->entries_done;
+  task->total = p->bytes_total;
+  prev_done = task->done;
+  pthread_mutex_unlock(&g_tasks_lock);
+
+  delta = p->bytes_done > prev_done ? p->bytes_done - prev_done : 0;
+  task_update(task, TASK_RUNNING, p->current ? p->current : task->src,
+              delta, NULL);
+}
+
 /* Pick the right engine by the archive file name. Returns ZIPX_ERR_FORMAT
    for anything that does not look like a supported archive. */
 static zipx_status_t
@@ -71,26 +93,6 @@ extract_dispatch(file_task_t *task, zipx_conflict_t conflict,
   }
 }
 
-/* Progress callback. The engine already throttles reports (200 ms / 1 MiB),
-   so we can forward each report straight into the shared task state. */
-static void
-extract_progress(void *userdata, const zipx_progress_t *p) {
-  file_task_t *task = userdata;
-  unsigned long long prev_done;
-  unsigned long long delta;
-
-  pthread_mutex_lock(&g_tasks_lock);
-  task->entries_total = p->entries_total;
-  task->entries_done = p->entries_done;
-  task->total = p->bytes_total;
-  prev_done = task->done;
-  pthread_mutex_unlock(&g_tasks_lock);
-
-  delta = p->bytes_done > prev_done ? p->bytes_done - prev_done : 0;
-  task_update(task, TASK_RUNNING, p->current ? p->current : task->src,
-              delta, NULL);
-}
-
 static const char *
 extract_error_code(zipx_status_t status) {
   switch(status) {

src/zip_extract.c

@@ -33,22 +33,40 @@
 #define ZIPX_PUBLISH_MAX_DEPTH 128
 #define ZIPX_SPACE_SLACK_PER_ENTRY 512
 
+/* Default limits.
+ *
+ * Tuned to cover real-world PS5 workloads without prompting:
+ *   - PS5 system backup ZIPs (~200-300 GiB total, individual chunks <64 GiB)
+ *   - 3A-game archives with a single ~300 GiB uncompressed file
+ *
+ * Safety against zip bombs is delegated to:
+ *   1. `check_space()` (statvfs-based real disk space check) before extract
+ *   2. `max_ratio` below (declared compression ratio cap)
+ * The size caps here are an early-fail UX guard, not a security boundary.
+ */
 static const zipx_limits_t k_default_limits = {
   .max_entries = 200000,
-  .max_total_bytes = 1ULL * 1024 * 1024 * 1024 * 1024,
-  .max_file_bytes = 256ULL * 1024 * 1024 * 1024,
+  .max_total_bytes = 2ULL * 1024 * 1024 * 1024 * 1024,
+  .max_file_bytes = 512ULL * 1024 * 1024 * 1024,
   .max_ratio = 500,
   .max_depth = 32,
   .max_name_len = 255,
   .max_path_len = 1024
 };
 
-/* Large profile for archives that exceed the safe limits (e.g. 200 GB system
-   images). The relaxed ratio still rejects obvious bombs; the size caps
-   require the user to opt in via the web UI before they take effect. */
+/* Large profile for archives that exceed the default cap.
+ *
+ *   - max_file_bytes  = 1 TiB   (single uncompressed file)
+ *   - max_total_bytes = 4 TiB   (whole archive)
+ *   - max_ratio       = 1000    (relaxed ratio cap; check_space still applies)
+ *
+ * Requires the user to opt in via the web UI (large=1) before these take
+ * effect. Default limits must always be strictly smaller than large so the
+ * large profile is unambiguously a relaxation.
+ */
 static const zipx_limits_t k_large_limits = {
   .max_entries = 500000,
-  .max_total_bytes = 2ULL * 1024 * 1024 * 1024 * 1024,
+  .max_total_bytes = 4ULL * 1024 * 1024 * 1024 * 1024,
   .max_file_bytes = 1ULL * 1024 * 1024 * 1024 * 1024,
   .max_ratio = 1000,
   .max_depth = 32,

tests/test_zip_extract.c

@@ -559,8 +559,8 @@ test_large_profile(void) {
   check(large->max_entries == 500000, "max_entries == 500000");
   check(large->max_file_bytes == 1ULL * 1024 * 1024 * 1024 * 1024,
         "max_file_bytes == 1 TiB");
-  check(large->max_total_bytes == 2ULL * 1024 * 1024 * 1024 * 1024,
-        "max_total_bytes == 2 TiB");
+  check(large->max_total_bytes == 4ULL * 1024 * 1024 * 1024 * 1024,
+        "max_total_bytes == 4 TiB");
   check(large->max_ratio == 1000, "max_ratio == 1000");
 
   /* Behaviour: medium_bomb.zip is 1 MiB of 0..255 cycled, compressing to