release v1.0

.github/workflows/build.yml

@@ -0,0 +1,102 @@
+name: Build WowPresence
+
+on:
+  push:
+    branches:
+      - main
+    tags:
+      - 'v*'
+  pull_request:
+    branches:
+      - main
+  workflow_dispatch:
+
+permissions:
+  contents: write
+
+concurrency:
+  group: wowpresence-${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  build:
+    runs-on: windows-2025
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Configure x86 MSVC
+        uses: ilammy/msvc-dev-cmd@v1
+        with:
+          arch: x86
+
+      - name: Build native components
+        shell: pwsh
+        run: |
+          New-Item -ItemType Directory -Force -Path "dist" | Out-Null
+          cl /nologo /O2 /MT /W3 /LD "src\WowPresence.c" /Fe:"dist\WowPresence.dll" /link /INCREMENTAL:NO
+          if ($LASTEXITCODE -ne 0) { throw "WowPresence.dll build failed" }
+
+          cl /nologo /O2 /MT /W3 "src\WowPresenceLauncher.c" user32.lib /Fe:"dist\WowPresence.exe" /link /SUBSYSTEM:WINDOWS /INCREMENTAL:NO
+          if ($LASTEXITCODE -ne 0) { throw "WowPresence.exe build failed" }
+
+          if (-not (Test-Path "dist\WowPresence.dll")) { throw "WowPresence.dll missing" }
+          if (-not (Test-Path "dist\WowPresence.exe")) { throw "WowPresence.exe missing" }
+
+      - name: Create ready-to-install package
+        shell: pwsh
+        run: |
+          $package = "package"
+          $config = Join-Path $package "WowPresence"
+          New-Item -ItemType Directory -Force -Path $config | Out-Null
+
+          Copy-Item "dist\WowPresence.dll" (Join-Path $package "WowPresence.dll")
+          Copy-Item "dist\WowPresence.exe" (Join-Path $package "WowPresence.exe")
+          Copy-Item "config\discord_application_id" (Join-Path $config "discord_application_id")
+          Copy-Item "config\discord_broadcast_flags" (Join-Path $config "discord_broadcast_flags")
+
+          $zip = "dist\WowPresence.zip"
+          if (Test-Path $zip) { Remove-Item $zip -Force }
+          Compress-Archive -Path (Join-Path $package "WowPresence.dll"),(Join-Path $package "WowPresence.exe"),(Join-Path $package "WowPresence") -DestinationPath $zip -CompressionLevel Optimal
+          if (-not (Test-Path $zip)) { throw "WowPresence.zip missing" }
+
+      - name: Upload build artifact
+        if: ${{ !startsWith(github.ref, 'refs/tags/') }}
+        uses: actions/upload-artifact@v4
+        with:
+          name: WowPresence-build
+          path: |
+            dist/WowPresence.dll
+            dist/WowPresence.exe
+            dist/WowPresence.zip
+          if-no-files-found: error
+
+      - name: Create GitHub Release v1.0
+        if: ${{ github.event_name == 'push' && github.ref == 'refs/heads/main' && github.event.head_commit.message == 'release v1.0' }}
+        uses: softprops/action-gh-release@v3
+        with:
+          tag_name: v1.0
+          target_commitish: ${{ github.sha }}
+          files: |
+            dist/WowPresence.dll
+            dist/WowPresence.exe
+            dist/WowPresence.zip
+          fail_on_unmatched_files: true
+          name: "WowPresence v1.0"
+          body_path: RELEASE_NOTES.md
+          generate_release_notes: true
+          make_latest: true
+
+      - name: Create GitHub Release
+        if: ${{ startsWith(github.ref, 'refs/tags/') }}
+        uses: softprops/action-gh-release@v3
+        with:
+          files: |
+            dist/WowPresence.dll
+            dist/WowPresence.exe
+            dist/WowPresence.zip
+          fail_on_unmatched_files: true
+          name: "WowPresence ${{ github.ref_name }}"
+          generate_release_notes: true
+          make_latest: true

README.md

@@ -1,2 +1,206 @@
-# WowPresence
-Native Discord Rich Presence for World of Warcraft 1.12.1 (build 5875) and compatible clients.
+# 🎮 WowPresence
+
+Native Discord Rich Presence for **World of Warcraft 1.12.1 (build 5875)** and compatible clients.
+
+Focused on **simple installation, read-only game sampling and native Discord IPC**.
+
+> WowPresence targets **WoW 1.12.1 / build 5875-compatible client environments**.
+
+## 🔌 Requirements
+
+- **World of Warcraft 1.12.1 (build 5875)** or a compatible client
+- **Discord Desktop**
+- A compatible DLL loader such as **VanillaFixes**
+- A free **Discord Application ID**
+
+The DLL only reads character status from the game. Discord communication is handled by the separate `WowPresence.exe` companion process.
+
+## 📦 Installation
+
+1. Download **`WowPresence.zip`** from Releases.
+2. Extract the ZIP directly into your WoW game directory.
+3. Open:
+
+```text
+WowPresence\discord_application_id
+```
+
+4. Replace the placeholder with **your numeric Discord Application ID**.
+5. Add `WowPresence.dll` to your VanillaFixes `dlls.txt`.
+6. Launch WoW normally through VanillaFixes.
+
+After extraction, the relevant files should look like this:
+
+```text
+<WoW folder>\
+├─ WowPresence.dll
+├─ WowPresence.exe
+└─ WowPresence\
+   ├─ discord_application_id
+   └─ discord_broadcast_flags
+```
+
+`WowPresence.exe` is started automatically by the DLL and normally does **not** need to be launched manually.
+
+The runtime JSON and log files are created automatically inside the same `WowPresence` folder.
+
+## 🛰️ Discord Application ID
+
+WowPresence intentionally does **not** include a server-specific Discord Application ID.
+
+To create yours:
+
+1. Open the **Discord Developer Portal**: https://discord.com/developers/applications
+2. Create a **New Application**.
+3. Give it the name you want Discord to display.
+4. Open **General Information**.
+5. Copy the **Application ID**.
+6. Paste only that numeric ID into:
+
+```text
+WowPresence\discord_application_id
+```
+
+Example:
+
+```text
+123456789012345678
+```
+
+No Discord Client Secret, bot token or bot account is used or required.
+
+If `discord_application_id` is missing or invalid, Rich Presence remains disabled and the reason is written to `WowPresence\WowPresence.log`.
+
+## ✨ Features
+
+- Character name and guild display.
+- Level and class display.
+- Race and faction display.
+- Current zone display.
+- Stable elapsed-session timer across character changes.
+- Automatic companion startup.
+- Exact WoW process tracking.
+- Read-only game-memory sampling.
+- Native Discord IPC.
+- Optional privacy flags for individual character fields.
+- No bot, Client Secret or external service required.
+
+## 🔧 Compatibility
+
+### Tested
+
+- **OctoWoW** — WoW 1.12.1 / build 5875 based client
+
+### Expected compatible
+
+- **World of Warcraft 1.12.1 build 5875**
+- Private-server clients preserving the relevant 1.12.1 client memory layout
+
+### Not compatible
+
+- WoW Classic Era 1.14.x
+- The Burning Crusade Classic
+- Wrath of the Lich King Classic
+- Retail World of Warcraft
+
+Other modified 1.12.1 clients should be considered **untested until verified**.
+
+## ⚙️ How it works
+
+```text
+WoW
+ └─ WowPresence.dll
+      ├─ read-only character sampling
+      ├─ WowPresence\discord_wow_status.json
+      └─ starts WowPresence.exe
+             └─ Discord local IPC
+```
+
+The DLL does not communicate directly with Discord.
+
+The companion executable does not read or write WoW memory.
+
+Runtime files are kept together in:
+
+```text
+<WoW folder>\WowPresence\
+├─ discord_application_id
+├─ discord_broadcast_flags
+├─ discord_wow_status.json
+└─ WowPresence.log
+```
+
+## 🔒 Privacy flags
+
+The included file:
+
+```text
+WowPresence\discord_broadcast_flags
+```
+
+controls which character details are published to Discord.
+
+| Value | Field |
+| ---: | --- |
+| 1 | Name |
+| 2 | Guild |
+| 4 | Faction |
+| 8 | Class |
+| 16 | Level |
+| 32 | Zone |
+| 63 | All fields |
+
+The release package uses `63` by default.
+
+If the file is deleted, WowPresence also defaults to all supported fields.
+
+## 🛡️ Administrator privileges
+
+Discord and WoW should run with matching privilege levels.
+
+If Discord runs as administrator, WoW must also run as administrator for local Rich Presence IPC to work reliably.
+
+Running both normally is recommended unless elevation is required by the local setup.
+
+## 🛠️ Building
+
+WowPresence targets **32-bit x86 Windows**, matching WoW 1.12.1.
+
+With an x86 MSVC developer environment:
+
+```bat
+cl /nologo /O2 /MT /W3 /LD src\WowPresence.c /Fe:WowPresence.dll /link /INCREMENTAL:NO
+cl /nologo /O2 /MT /W3 src\WowPresenceLauncher.c user32.lib /Fe:WowPresence.exe /link /SUBSYSTEM:WINDOWS /INCREMENTAL:NO
+```
+
+GitHub Actions builds:
+
+- `WowPresence.dll`
+- `WowPresence.exe`
+- `WowPresence.zip`
+
+The ZIP includes the ready-to-edit `WowPresence` configuration folder.
+
+Tags matching `v*` can publish these files as a GitHub Release.
+
+## 📜 Project identity & licensing
+
+WowPresence is an **independent community project**.
+
+Compatibility with **World of Warcraft**, **Discord**, **OctoWoW**, **VanillaFixes**, **IchaLaunch**, or other referenced projects does not imply affiliation, endorsement, sponsorship or ownership by their respective rights holders or maintainers.
+
+**World of Warcraft**, **Warcraft**, **Blizzard Entertainment**, **Discord**, and related names and marks remain the property of their respective rights holders.
+
+This repository does not currently declare a software license.
+
+For detailed provenance and third-party information, see:
+
+- [THIRD_PARTY_NOTICES.md](THIRD_PARTY_NOTICES.md)
+
+## 🙏 Credits
+
+WowPresence is maintained by **Dusk-92**.
+
+The project was inspired in part by the WoW character-status / Discord Rich Presence implementation in **IchaLaunch** by **brutaliccus**.
+
+The current WowPresence implementation is maintained separately and does not include IchaLaunch binaries.

RELEASE_NOTES.md

@@ -0,0 +1,25 @@
+# WowPresence v1.0
+
+First standalone release of WowPresence.
+
+## Included
+
+- WowPresence.dll
+- WowPresence.exe
+- WowPresence.zip ready-to-install package
+
+## Highlights
+
+- Native Discord Rich Presence for WoW 1.12.1 build 5875 compatible clients
+- Character name, guild, level, class, race, faction and zone display
+- Stable elapsed-session timer across character changes
+- Read-only game-memory sampling
+- Separate native Discord IPC companion
+- Configurable Discord Application ID through `WowPresence\discord_application_id`
+- Privacy flags through `WowPresence\discord_broadcast_flags`
+- Standalone `WowPresence\` runtime folder
+- Automatic companion startup and exact WoW process tracking
+
+## Installation
+
+Extract `WowPresence.zip` into the WoW folder, edit `WowPresence\discord_application_id`, add `WowPresence.dll` to VanillaFixes `dlls.txt`, then launch WoW normally.

THIRD_PARTY_NOTICES.md

@@ -0,0 +1,35 @@
+# Third-Party Notices
+
+WowPresence contains original project code maintained by Dusk-92 and uses compatibility knowledge related to World of Warcraft 1.12.1 and Discord local Rich Presence IPC.
+
+## IchaLaunch
+
+The development of WowPresence was inspired in part by the character-status / Discord Rich Presence implementation in:
+
+- Project: IchaLaunch
+- Author / maintainer: brutaliccus
+- Repository: https://github.com/brutaliccus/IchaLaunch
+
+IchaLaunch was used as a technical reference during development, particularly for understanding a working WoW 1.12.1 character-status sampling approach.
+
+The current WowPresence implementation is maintained separately and has been independently reworked. No IchaLaunch binary is included in this repository.
+
+At the historical IchaLaunch revision reviewed during development, no explicit LICENSE, LICENSE.md, or COPYING file was present. This notice therefore records provenance and credit; it should not be interpreted as granting rights on behalf of the IchaLaunch author.
+
+## World of Warcraft client compatibility data
+
+WowPresence uses client-layout information and memory offsets associated with World of Warcraft 1.12.1 build 5875. Such compatibility information has been documented in multiple community projects over the years.
+
+These values and client structures are used solely to locate read-only character status information in a compatible running client.
+
+## Discord
+
+WowPresence communicates with the locally running Discord desktop client through Discord's local IPC / Rich Presence protocol.
+
+Discord is a trademark of Discord Inc. WowPresence is not affiliated with or endorsed by Discord Inc.
+
+## Blizzard Entertainment / World of Warcraft
+
+World of Warcraft, Warcraft, Blizzard, and related names and marks are trademarks or registered trademarks of Blizzard Entertainment, Inc.
+
+WowPresence is an independent community project and is not affiliated with or endorsed by Blizzard Entertainment.

config/discord_application_id

@@ -0,0 +1 @@
+PASTE_YOUR_DISCORD_APPLICATION_ID_HERE

config/discord_broadcast_flags

@@ -0,0 +1 @@
+63

src/WowPresence.c

@@ -0,0 +1,761 @@
+/*
+ * WowPresence.dll
+ * Read-only WoW 1.12.1 (build 5875) status sampler for WowPresence.
+ *
+ * Runtime contract:
+ *   <game>\WowPresence\discord_wow_status.json
+ *   <game>\WowPresence\discord_broadcast_flags
+ *
+ * Discord IPC is intentionally out of process. After the first sample, this
+ * DLL starts WowPresence.exe from its worker thread and passes the exact
+ * WoW process id. No process launch is performed from DllMain.
+ *
+ * This implementation is organized independently around a small memory-view
+ * layer and a snapshot serializer. Client addresses are the community-known
+ * WoW 1.12.1 / build 5875 values used for compatibility with the target client.
+ */
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+
+#define CLIENT_IMAGE_BASE          0x00400000u
+#define CLIENT_OBJECT_MANAGER_VA   0x00B41414u
+#define OM_FIRST_OBJECT_OFF        0xACu
+#define OM_LOCAL_GUID_OFF          0xC0u
+#define OBJECT_NEXT_OFF            0x3Cu
+#define OBJECT_TYPE_OFF            0x14u
+#define OBJECT_GUID_OFF            0x30u
+#define OBJECT_DESCRIPTORS_OFF     0x08u
+#define UNIT_LEVEL_OFF             0x88u
+#define UNIT_BYTES0_OFF            0x90u
+#define PLAYER_GUILD_ID_OFF        0x2FCu
+#define PLAYER_INFO_OFF            0xE68u
+#define PLAYER_INFO_GUILD_KEY_OFF  0x0Cu
+
+#define GUILD_CACHE_BASE_VA        0x00C0E0C0u
+#define GUILD_CACHE_STRIDE         0x3Cu
+#define GUILD_CACHE_COUNT          12u
+#define GUILD_TAG_WGLD             0x444C4757u
+#define GUILD_TAG_DLGW             0x57474C44u
+
+#define USER_ADDRESS_MIN           0x00010000u
+#define USER_ADDRESS_MAX           0x7FFEFFFFu
+#define PLAYER_OBJECT_TYPE         4u
+#define MAX_OBJECT_VISITS          256u
+#define MAX_GUILD_VISITS           32u
+
+#define STARTUP_WAIT_MS            6000u
+#define SAMPLE_PERIOD_MS           2000u
+#define WORLD_SETTLE_MS            3000u
+
+#define NAME_LIMIT                 24u
+#define ZONE_LIMIT                 64u
+#define GUILD_LIMIT                48u
+#define JSON_BUFFER_SIZE           768u
+
+#define SHARE_NAME                 1u
+#define SHARE_GUILD                2u
+#define SHARE_FACTION              4u
+#define SHARE_CLASS                8u
+#define SHARE_LEVEL                16u
+#define SHARE_ZONE                 32u
+#define SHARE_ALL                  63u
+
+static const uintptr_t kPlayerNameLocations[] = {
+    0x00C27FC8u, 0x00C27D88u, 0x00C27FD8u, 0
+};
+
+static const uintptr_t kZoneNameLocations[] = {
+    0x00B4B404u, 0x00B4B424u, 0x00CE06D0u,
+    0x00CE06F8u, 0x00B4B3C8u, 0
+};
+
+typedef struct MemoryView {
+    HANDLE process;
+    uintptr_t module_base;
+} MemoryView;
+
+typedef struct CharacterSnapshot {
+    int in_world;
+    char name[NAME_LIMIT + 1];
+    char zone[ZONE_LIMIT + 1];
+    char guild[GUILD_LIMIT + 1];
+    uint32_t level;
+    uint32_t race_id;
+    uint32_t class_id;
+} CharacterSnapshot;
+
+typedef struct LabelEntry {
+    uint32_t id;
+    const char *text;
+} LabelEntry;
+
+static const LabelEntry kClassLabels[] = {
+    {1u, "Warrior"}, {2u, "Paladin"}, {3u, "Hunter"}, {4u, "Rogue"},
+    {5u, "Priest"}, {7u, "Shaman"}, {8u, "Mage"}, {9u, "Warlock"},
+    {11u, "Druid"}, {0u, ""}
+};
+
+static const LabelEntry kRaceLabels[] = {
+    {1u, "Human"}, {2u, "Orc"}, {3u, "Dwarf"}, {4u, "Night Elf"},
+    {5u, "Undead"}, {6u, "Tauren"}, {7u, "Gnome"}, {8u, "Troll"},
+    {9u, "Goblin"}, {10u, "High Elf"}, {11u, "Draenei"},
+    {16u, "High Elf"}, {0u, ""}
+};
+
+static HANDLE gStopEvent = NULL;
+static HANDLE gWorkerThread = NULL;
+static DWORD gWorldReadySince = 0;
+
+static int user_address(uintptr_t value) {
+    return value >= (uintptr_t)USER_ADDRESS_MIN && value <= (uintptr_t)USER_ADDRESS_MAX;
+}
+
+static int readable_protection(DWORD protection) {
+    DWORD base = protection & 0xFFu;
+    if (protection & (PAGE_GUARD | PAGE_NOACCESS)) return 0;
+    return base == PAGE_READONLY || base == PAGE_READWRITE ||
+           base == PAGE_WRITECOPY || base == PAGE_EXECUTE_READ ||
+           base == PAGE_EXECUTE_READWRITE || base == PAGE_EXECUTE_WRITECOPY;
+}
+
+static int readable_range(uintptr_t start, size_t length) {
+    uintptr_t cursor, end;
+    if (!start || !length || length > 4096u) return 0;
+    end = start + length - 1u;
+    if (end < start || !user_address(start) || !user_address(end)) return 0;
+
+    cursor = start;
+    while (cursor <= end) {
+        MEMORY_BASIC_INFORMATION info;
+        uintptr_t region_end;
+        if (!VirtualQuery((LPCVOID)cursor, &info, sizeof(info))) return 0;
+        if (info.State != MEM_COMMIT || !readable_protection(info.Protect)) return 0;
+        region_end = (uintptr_t)info.BaseAddress + info.RegionSize;
+        if (region_end <= cursor) return 0;
+        if (region_end > end) return 1;
+        cursor = region_end;
+    }
+    return 1;
+}
+
+static void memory_view_init(MemoryView *view) {
+    if (!view) return;
+    view->process = GetCurrentProcess();
+    view->module_base = (uintptr_t)GetModuleHandleA(NULL);
+}
+
+static uintptr_t client_address(const MemoryView *view, uintptr_t vanilla_va) {
+    if (!view || !view->module_base || vanilla_va < CLIENT_IMAGE_BASE) return 0;
+    return view->module_base + (vanilla_va - CLIENT_IMAGE_BASE);
+}
+
+static int memory_copy(const MemoryView *view, uintptr_t address, void *destination, size_t length) {
+    SIZE_T copied = 0;
+    if (!view || !view->process || !destination || !readable_range(address, length)) return 0;
+    if (!ReadProcessMemory(view->process, (LPCVOID)address, destination, length, &copied)) return 0;
+    return copied == length;
+}
+
+static int memory_u32(const MemoryView *view, uintptr_t address, uint32_t *value) {
+    uint32_t temp = 0;
+    if (!value || !memory_copy(view, address, &temp, sizeof(temp))) return 0;
+    *value = temp;
+    return 1;
+}
+
+static int memory_u64(const MemoryView *view, uintptr_t address, uint64_t *value) {
+    uint64_t temp = 0;
+    if (!value || !memory_copy(view, address, &temp, sizeof(temp))) return 0;
+    *value = temp;
+    return 1;
+}
+
+static int memory_ascii(const MemoryView *view, uintptr_t address, char *output,
+                        size_t output_size, size_t max_chars) {
+    size_t i;
+    if (!view || !output || output_size < 2u || !max_chars || !user_address(address)) return 0;
+    output[0] = 0;
+    if (max_chars + 1u > output_size) max_chars = output_size - 1u;
+
+    for (i = 0; i <= max_chars; ++i) {
+        unsigned char ch = 0;
+        if (!memory_copy(view, address + i, &ch, 1u)) {
+            output[0] = 0;
+            return 0;
+        }
+        if (ch == 0) {
+            output[i] = 0;
+            return i > 0u;
+        }
+        if (i == max_chars || ch < 32u || ch >= 127u) {
+            output[0] = 0;
+            return 0;
+        }
+        output[i] = (char)ch;
+    }
+    output[0] = 0;
+    return 0;
+}
+
+static int ascii_letter(char ch) {
+    return (ch >= 'A' && ch <= 'Z') || (ch >= 'a' && ch <= 'z');
+}
+
+static int valid_player_name(const char *text) {
+    size_t i, length;
+    if (!text) return 0;
+    length = strlen(text);
+    if (length < 2u || length > 16u || !ascii_letter(text[0])) return 0;
+    for (i = 1u; i < length; ++i) {
+        if (!ascii_letter(text[i]) && text[i] != '\'') return 0;
+    }
+    return 1;
+}
+
+static int valid_display_text(const char *text, size_t max_length) {
+    size_t i, length;
+    if (!text) return 0;
+    length = strlen(text);
+    if (length < 2u || length > max_length) return 0;
+    for (i = 0u; i < length; ++i) {
+        char ch = text[i];
+        if (ascii_letter(ch) || (ch >= '0' && ch <= '9') || ch == ' ' ||
+            ch == '\'' || ch == '-' || ch == ':') {
+            continue;
+        }
+        return 0;
+    }
+    return 1;
+}
+
+static int looks_like_internal_zone_code(const char *text) {
+    size_t i, length;
+    int has_letter = 0;
+    int has_digit = 0;
+
+    if (!text) return 0;
+    length = strlen(text);
+
+    /* Some 1.12-compatible clients expose compact internal area tokens
+     * (for example "H32D") at one of the candidate zone addresses. These
+     * are identifiers, not user-facing zone names. Keep the rule narrow:
+     * short mixed letter/digit strings with no separators are rejected,
+     * while legitimate names such as "Area 52" remain valid. */
+    if (length < 2u || length > 8u) return 0;
+
+    for (i = 0u; i < length; ++i) {
+        char ch = text[i];
+        if (ascii_letter(ch)) {
+            has_letter = 1;
+        } else if (ch >= '0' && ch <= '9') {
+            has_digit = 1;
+        } else {
+            return 0;
+        }
+    }
+
+    return has_letter && has_digit;
+}
+
+static int valid_zone_name(const char *text) {
+    if (!valid_display_text(text, ZONE_LIMIT)) return 0;
+    return !looks_like_internal_zone_code(text);
+}
+
+static int valid_guild_name(const char *text) {
+    if (!valid_display_text(text, GUILD_LIMIT)) return 0;
+    return _stricmp(text, "none") != 0;
+}
+
+static int text_from_location(const MemoryView *view, uintptr_t vanilla_va,
+                              char *output, size_t output_size, size_t max_chars,
+                              int (*validator)(const char *)) {
+    uintptr_t location;
+    uint32_t indirect = 0;
+    if (!view || !validator) return 0;
+    location = client_address(view, vanilla_va);
+    if (!location) return 0;
+
+    if (memory_ascii(view, location, output, output_size, max_chars) && validator(output))
+        return 1;
+
+    output[0] = 0;
+    if (!memory_u32(view, location, &indirect) || !user_address((uintptr_t)indirect)) return 0;
+    if (memory_ascii(view, (uintptr_t)indirect, output, output_size, max_chars) && validator(output))
+        return 1;
+    output[0] = 0;
+    return 0;
+}
+
+static int first_text_match(const MemoryView *view, const uintptr_t *locations,
+                            char *output, size_t output_size, size_t max_chars,
+                            int (*validator)(const char *)) {
+    size_t i;
+    if (!locations) return 0;
+    for (i = 0u; locations[i] != 0u; ++i) {
+        if (text_from_location(view, locations[i], output, output_size, max_chars, validator))
+            return 1;
+    }
+    if (output && output_size) output[0] = 0;
+    return 0;
+}
+
+static const char *label_for_id(const LabelEntry *table, uint32_t id) {
+    size_t i;
+    if (!table || !id) return "";
+    for (i = 0u; table[i].id != 0u; ++i) {
+        if (table[i].id == id) return table[i].text;
+    }
+    return "";
+}
+
+static const char *faction_for_race(uint32_t race_id) {
+    switch (race_id) {
+    case 1u: case 3u: case 4u: case 7u: case 10u: case 11u: case 16u:
+        return "alliance";
+    case 2u: case 5u: case 6u: case 8u: case 9u:
+        return "horde";
+    default:
+        return "";
+    }
+}
+
+static int object_manager_pointer(const MemoryView *view, uint32_t *manager) {
+    uintptr_t slot;
+    uint32_t value = 0;
+    if (!view || !manager) return 0;
+    slot = client_address(view, CLIENT_OBJECT_MANAGER_VA);
+    if (!slot || !memory_u32(view, slot, &value) || !user_address((uintptr_t)value)) return 0;
+    *manager = value;
+    return 1;
+}
+
+static int stable_local_guid(const MemoryView *view, uint32_t manager, uint64_t *guid) {
+    uint64_t first = 0, second = 0;
+    uintptr_t address;
+    if (!view || !guid || !user_address((uintptr_t)manager)) return 0;
+    address = (uintptr_t)manager + OM_LOCAL_GUID_OFF;
+    if (!memory_u64(view, address, &first) || !memory_u64(view, address, &second)) return 0;
+    if (!first || first != second) return 0;
+    *guid = first;
+    return 1;
+}
+
+static int contains_guild_marker(const char *text) {
+    char lowered[32];
+    size_t i, length;
+    if (!text) return 0;
+    length = strlen(text);
+    if (length >= sizeof(lowered)) length = sizeof(lowered) - 1u;
+    for (i = 0u; i < length; ++i) {
+        char ch = text[i];
+        lowered[i] = (ch >= 'A' && ch <= 'Z') ? (char)(ch - 'A' + 'a') : ch;
+    }
+    lowered[length] = 0;
+    return strstr(lowered, "guild") != NULL || strstr(lowered, "wgld") != NULL;
+}
+
+static uintptr_t locate_guild_cache(const MemoryView *view) {
+    unsigned i;
+    for (i = 0u; i < GUILD_CACHE_COUNT; ++i) {
+        uintptr_t candidate = client_address(
+            view, GUILD_CACHE_BASE_VA + (uintptr_t)i * GUILD_CACHE_STRIDE);
+        uint32_t tag = 0;
+        uint32_t file_name_ptr = 0;
+        char file_name[32];
+
+        if (!candidate || !readable_range(candidate, 0x30u)) continue;
+        if (memory_u32(view, candidate + 0x28u, &tag) &&
+            (tag == GUILD_TAG_WGLD || tag == GUILD_TAG_DLGW)) {
+            return candidate;
+        }
+
+        file_name[0] = 0;
+        if (memory_u32(view, candidate + 0x2Cu, &file_name_ptr) &&
+            user_address((uintptr_t)file_name_ptr) &&
+            memory_ascii(view, (uintptr_t)file_name_ptr, file_name, sizeof(file_name), 24u) &&
+            contains_guild_marker(file_name)) {
+            return candidate;
+        }
+    }
+    return 0;
+}
+
+static int guild_name_from_chain(const MemoryView *view, uint32_t head, uint32_t guild_id,
+                                 uint32_t link_offset, char *output, size_t output_size) {
+    uint32_t node = head;
+    unsigned visited = 0u;
+    if (!view || !output || output_size < 2u) return 0;
+    output[0] = 0;
+
+    while (user_address((uintptr_t)node) && !(node & 1u) && visited++ < MAX_GUILD_VISITS) {
+        uint32_t key = 0, next = 0;
+        if (!memory_u32(view, (uintptr_t)node, &key)) return 0;
+        if (key == guild_id) {
+            if (memory_ascii(view, (uintptr_t)node + 0x1Cu, output, output_size, GUILD_LIMIT) &&
+                valid_guild_name(output)) return 1;
+            output[0] = 0;
+            if (memory_ascii(view, (uintptr_t)node + 0x18u, output, output_size, GUILD_LIMIT) &&
+                valid_guild_name(output)) return 1;
+            output[0] = 0;
+            return 0;
+        }
+        if (!memory_u32(view, (uintptr_t)node + link_offset, &next) ||
+            next == node || !user_address((uintptr_t)next)) {
+            return 0;
+        }
+        node = next;
+    }
+    return 0;
+}
+
+static int resolve_guild_name(const MemoryView *view, uint32_t guild_id,
+                              char *output, size_t output_size) {
+    uintptr_t cache;
+    uint32_t buckets = 0, mask = 0, head = 0;
+    uintptr_t bucket_head;
+    if (!guild_id || !output || output_size < 2u) return 0;
+    output[0] = 0;
+
+    cache = locate_guild_cache(view);
+    if (!cache) return 0;
+    if (!memory_u32(view, cache + 0x1Cu, &buckets) || !user_address((uintptr_t)buckets)) return 0;
+    if (!memory_u32(view, cache + 0x24u, &mask)) return 0;
+
+    bucket_head = (uintptr_t)buckets + (uintptr_t)(guild_id & mask) * 12u + 8u;
+    if (!memory_u32(view, bucket_head, &head) || !user_address((uintptr_t)head)) return 0;
+    if (guild_name_from_chain(view, head, guild_id, 4u, output, output_size)) return 1;
+    return guild_name_from_chain(view, head, guild_id, 8u, output, output_size);
+}
+
+static void read_player_guild(const MemoryView *view, uintptr_t player_object,
+                              uint32_t descriptors, char *output, size_t output_size) {
+    uint32_t guild_id = 0, player_info = 0;
+    if (!output || !output_size) return;
+    output[0] = 0;
+
+    if (user_address((uintptr_t)descriptors) &&
+        memory_u32(view, (uintptr_t)descriptors + PLAYER_GUILD_ID_OFF, &guild_id) && guild_id &&
+        resolve_guild_name(view, guild_id, output, output_size)) {
+        return;
+    }
+
+    output[0] = 0;
+    guild_id = 0;
+    if (memory_u32(view, player_object + PLAYER_INFO_OFF, &player_info) &&
+        user_address((uintptr_t)player_info) &&
+        memory_u32(view, (uintptr_t)player_info + PLAYER_INFO_GUILD_KEY_OFF, &guild_id) &&
+        guild_id) {
+        resolve_guild_name(view, guild_id, output, output_size);
+    }
+}
+
+static int read_local_player(const MemoryView *view, CharacterSnapshot *snapshot) {
+    uint32_t manager = 0, current = 0, initial_first = 0;
+    uint64_t wanted_guid = 0;
+    unsigned visited = 0u;
+
+    if (!view || !snapshot || !object_manager_pointer(view, &manager)) return 0;
+    if (!stable_local_guid(view, manager, &wanted_guid)) return 0;
+    if (!memory_u32(view, (uintptr_t)manager + OM_FIRST_OBJECT_OFF, &current) ||
+        !user_address((uintptr_t)current)) return 0;
+    initial_first = current;
+
+    while (user_address((uintptr_t)current) && !(current & 1u) && visited++ < MAX_OBJECT_VISITS) {
+        uint32_t current_first = 0, object_type = 0, descriptors = 0, next = 0;
+        uint64_t object_guid = 0;
+
+        if (!memory_u32(view, (uintptr_t)manager + OM_FIRST_OBJECT_OFF, &current_first) ||
+            current_first != initial_first) return 0;
+        if (!memory_u32(view, (uintptr_t)current + OBJECT_TYPE_OFF, &object_type)) return 0;
+
+        if (object_type == PLAYER_OBJECT_TYPE &&
+            memory_u64(view, (uintptr_t)current + OBJECT_GUID_OFF, &object_guid) &&
+            object_guid == wanted_guid &&
+            memory_u32(view, (uintptr_t)current + OBJECT_DESCRIPTORS_OFF, &descriptors) &&
+            user_address((uintptr_t)descriptors)) {
+            uint32_t level = 0, bytes0 = 0;
+            if (memory_u32(view, (uintptr_t)descriptors + UNIT_LEVEL_OFF, &level) &&
+                level >= 1u && level <= 80u) {
+                snapshot->level = level;
+            }
+            if (memory_u32(view, (uintptr_t)descriptors + UNIT_BYTES0_OFF, &bytes0)) {
+                snapshot->race_id = bytes0 & 0xFFu;
+                snapshot->class_id = (bytes0 >> 8) & 0xFFu;
+            }
+            read_player_guild(view, (uintptr_t)current, descriptors,
+                              snapshot->guild, sizeof(snapshot->guild));
+            return 1;
+        }
+
+        if (!memory_u32(view, (uintptr_t)current + OBJECT_NEXT_OFF, &next) ||
+            next == current || !user_address((uintptr_t)next)) return 0;
+        current = next;
+    }
+    return 0;
+}
+
+static void collect_character_snapshot(CharacterSnapshot *snapshot) {
+    MemoryView view;
+    DWORD now;
+    int have_name, have_zone;
+    if (!snapshot) return;
+    memset(snapshot, 0, sizeof(*snapshot));
+    memory_view_init(&view);
+
+    have_name = first_text_match(&view, kPlayerNameLocations, snapshot->name,
+                                 sizeof(snapshot->name), NAME_LIMIT, valid_player_name);
+    have_zone = first_text_match(&view, kZoneNameLocations, snapshot->zone,
+                                 sizeof(snapshot->zone), ZONE_LIMIT, valid_zone_name);
+    snapshot->in_world = have_name && have_zone;
+
+    now = GetTickCount();
+    if (!snapshot->in_world) {
+        gWorldReadySince = 0;
+        return;
+    }
+
+    if (!gWorldReadySince) gWorldReadySince = now ? now : 1u;
+    if ((DWORD)(now - gWorldReadySince) < WORLD_SETTLE_MS) return;
+    read_local_player(&view, snapshot);
+}
+
+static int game_folder(char *output, size_t output_size) {
+    char path[MAX_PATH];
+    char *separator;
+    size_t length;
+    if (!output || output_size < 4u) return 0;
+    if (!GetModuleFileNameA(NULL, path, MAX_PATH)) return 0;
+    separator = strrchr(path, '\\');
+    if (!separator) separator = strrchr(path, '/');
+    if (!separator) return 0;
+    *separator = 0;
+    length = strlen(path);
+    if (length + 1u > output_size) return 0;
+    memcpy(output, path, length + 1u);
+    return 1;
+}
+
+static int support_folder(char *output, size_t output_size) {
+    char root[MAX_PATH];
+    int count;
+    if (!game_folder(root, sizeof(root))) return 0;
+
+    count = _snprintf(output, output_size, "%s\\WowPresence", root);
+    if (output_size) output[output_size - 1] = 0;
+    if (count < 0 || (size_t)count >= output_size) return 0;
+    CreateDirectoryA(output, NULL);
+    return 1;
+}
+
+static int support_path(char *output, size_t output_size, const char *file_name) {
+    char folder[MAX_PATH];
+    int count;
+    if (!file_name || !support_folder(folder, sizeof(folder))) return 0;
+    count = _snprintf(output, output_size, "%s\\%s", folder, file_name);
+    if (output_size) output[output_size - 1] = 0;
+    return count >= 0 && (size_t)count < output_size;
+}
+
+static unsigned load_share_mask(void) {
+    char path[MAX_PATH], text[32];
+    HANDLE file;
+    DWORD read_count = 0;
+    char *end = NULL;
+    unsigned long value;
+    memset(text, 0, sizeof(text));
+
+    if (!support_path(path, sizeof(path), "discord_broadcast_flags")) return SHARE_ALL;
+    file = CreateFileA(path, GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
+                       NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
+    if (file == INVALID_HANDLE_VALUE) return SHARE_ALL;
+    if (!ReadFile(file, text, sizeof(text) - 1u, &read_count, NULL) || !read_count) {
+        CloseHandle(file);
+        return SHARE_ALL;
+    }
+    CloseHandle(file);
+    text[read_count < sizeof(text) ? read_count : sizeof(text) - 1u] = 0;
+    value = strtoul(text, &end, 10);
+    if (end == text) return SHARE_ALL;
+    return (unsigned)(value & SHARE_ALL);
+}
+
+static void json_quote_text(const char *source, char *output, size_t output_size) {
+    size_t read_index = 0u, write_index = 0u;
+    if (!output || !output_size) return;
+    output[0] = 0;
+
+    while (source && source[read_index] && write_index + 1u < output_size) {
+        unsigned char ch = (unsigned char)source[read_index++];
+        if (ch == '"' || ch == '\\') {
+            if (write_index + 2u >= output_size) break;
+            output[write_index++] = '\\';
+            output[write_index++] = (char)ch;
+        } else if (ch >= 32u && ch < 127u) {
+            output[write_index++] = (char)ch;
+        }
+    }
+    output[write_index] = 0;
+}
+
+static int replace_text_file_atomically(const char *file_name, const char *contents) {
+    char destination[MAX_PATH], temporary[MAX_PATH];
+    HANDLE file;
+    DWORD length, written = 0;
+    int count;
+
+    if (!file_name || !contents || !support_path(destination, sizeof(destination), file_name)) return 0;
+    count = _snprintf(temporary, sizeof(temporary), "%s.tmp", destination);
+    temporary[sizeof(temporary) - 1] = 0;
+    if (count < 0 || (size_t)count >= sizeof(temporary)) return 0;
+
+    file = CreateFileA(temporary, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS,
+                       FILE_ATTRIBUTE_NORMAL, NULL);
+    if (file == INVALID_HANDLE_VALUE) return 0;
+    length = (DWORD)strlen(contents);
+    if (!WriteFile(file, contents, length, &written, NULL) || written != length) {
+        CloseHandle(file);
+        DeleteFileA(temporary);
+        return 0;
+    }
+    FlushFileBuffers(file);
+    CloseHandle(file);
+
+    if (!MoveFileExA(temporary, destination,
+                     MOVEFILE_REPLACE_EXISTING | MOVEFILE_WRITE_THROUGH)) {
+        DeleteFileA(temporary);
+        return 0;
+    }
+    return 1;
+}
+
+static void publish_fault_snapshot(void) {
+    replace_text_file_atomically(
+        "discord_wow_status.json",
+        "{\"v\":1,\"ts\":0,\"ok\":false,\"in_world\":false,\"name\":\"\","
+        "\"zone\":\"\",\"level\":0,\"faction\":\"\",\"class\":\"\","
+        "\"guild\":\"\",\"race\":\"\",\"build\":5875,\"err\":\"fault\"}");
+}
+
+static void publish_character_snapshot(void) {
+    CharacterSnapshot snapshot;
+    unsigned mask;
+    char safe_name[NAME_LIMIT * 2u + 8u];
+    char safe_zone[ZONE_LIMIT * 2u + 8u];
+    char safe_guild[GUILD_LIMIT * 2u + 8u];
+    char json[JSON_BUFFER_SIZE];
+    const char *race_text, *class_text, *faction_text;
+
+    collect_character_snapshot(&snapshot);
+    mask = load_share_mask();
+    race_text = snapshot.in_world ? label_for_id(kRaceLabels, snapshot.race_id) : "";
+    class_text = (snapshot.in_world && (mask & SHARE_CLASS))
+        ? label_for_id(kClassLabels, snapshot.class_id) : "";
+    faction_text = (snapshot.in_world && (mask & SHARE_FACTION))
+        ? faction_for_race(snapshot.race_id) : "";
+
+    json_quote_text((mask & SHARE_NAME) ? snapshot.name : "", safe_name, sizeof(safe_name));
+    json_quote_text((mask & SHARE_ZONE) ? snapshot.zone : "", safe_zone, sizeof(safe_zone));
+    json_quote_text((mask & SHARE_GUILD) ? snapshot.guild : "", safe_guild, sizeof(safe_guild));
+
+    _snprintf(
+        json, sizeof(json),
+        "{\"v\":1,\"ts\":%ld,\"ok\":%s,\"in_world\":%s,"
+        "\"name\":\"%s\",\"zone\":\"%s\",\"level\":%u,"
+        "\"faction\":\"%s\",\"class\":\"%s\",\"guild\":\"%s\","
+        "\"race\":\"%s\",\"build\":5875,\"err\":\"%s\"}",
+        (long)time(NULL),
+        snapshot.in_world ? "true" : "false",
+        snapshot.in_world ? "true" : "false",
+        safe_name,
+        safe_zone,
+        (snapshot.in_world && (mask & SHARE_LEVEL)) ? snapshot.level : 0u,
+        faction_text,
+        class_text,
+        safe_guild,
+        race_text,
+        snapshot.in_world ? "" : "offsets");
+    json[sizeof(json) - 1] = 0;
+    replace_text_file_atomically("discord_wow_status.json", json);
+}
+
+static int launch_discord_companion(void) {
+    char root[MAX_PATH], executable[MAX_PATH], command[MAX_PATH * 2u];
+    STARTUPINFOA startup;
+    PROCESS_INFORMATION process;
+    DWORD attributes;
+    int count;
+
+    if (!game_folder(root, sizeof(root))) return 0;
+    count = _snprintf(executable, sizeof(executable), "%s\\WowPresence.exe", root);
+    executable[sizeof(executable) - 1] = 0;
+    if (count < 0 || (size_t)count >= sizeof(executable)) return 0;
+
+    attributes = GetFileAttributesA(executable);
+    if (attributes == INVALID_FILE_ATTRIBUTES || (attributes & FILE_ATTRIBUTE_DIRECTORY)) return 0;
+
+    count = _snprintf(command, sizeof(command), "\"%s\" --pid %lu",
+                      executable, (unsigned long)GetCurrentProcessId());
+    command[sizeof(command) - 1] = 0;
+    if (count < 0 || (size_t)count >= sizeof(command)) return 0;
+
+    memset(&startup, 0, sizeof(startup));
+    memset(&process, 0, sizeof(process));
+    startup.cb = sizeof(startup);
+    startup.dwFlags = STARTF_USESHOWWINDOW;
+    startup.wShowWindow = SW_HIDE;
+
+    if (!CreateProcessA(executable, command, NULL, NULL, FALSE, CREATE_NO_WINDOW,
+                        NULL, root, &startup, &process)) {
+        return 0;
+    }
+    CloseHandle(process.hThread);
+    CloseHandle(process.hProcess);
+    return 1;
+}
+
+static DWORD WINAPI presence_worker(LPVOID parameter) {
+    int companion_running = 0;
+    (void)parameter;
+
+    if (WaitForSingleObject(gStopEvent, STARTUP_WAIT_MS) != WAIT_TIMEOUT) return 0;
+    do {
+#ifdef _MSC_VER
+        __try {
+            publish_character_snapshot();
+        } __except (EXCEPTION_EXECUTE_HANDLER) {
+            publish_fault_snapshot();
+        }
+#else
+        publish_character_snapshot();
+#endif
+        if (!companion_running) companion_running = launch_discord_companion();
+    } while (WaitForSingleObject(gStopEvent, SAMPLE_PERIOD_MS) == WAIT_TIMEOUT);
+    return 0;
+}
+
+BOOL WINAPI DllMain(HINSTANCE module, DWORD reason, LPVOID reserved) {
+    (void)reserved;
+    if (reason == DLL_PROCESS_ATTACH) {
+        DisableThreadLibraryCalls(module);
+        gStopEvent = CreateEventA(NULL, TRUE, FALSE, NULL);
+        if (gStopEvent) gWorkerThread = CreateThread(NULL, 0, presence_worker, NULL, 0, NULL);
+    } else if (reason == DLL_PROCESS_DETACH) {
+        if (gStopEvent) SetEvent(gStopEvent);
+        if (gWorkerThread) {
+            WaitForSingleObject(gWorkerThread, 1500u);
+            CloseHandle(gWorkerThread);
+            gWorkerThread = NULL;
+        }
+        if (gStopEvent) {
+            CloseHandle(gStopEvent);
+            gStopEvent = NULL;
+        }
+    }
+    return TRUE;
+}

src/WowPresenceLauncher.c

@@ -0,0 +1,501 @@
+/*
+ * WowPresence.exe
+ * Invisible companion process for WowPresence.
+ *
+ * - is started automatically by WowPresence.dll after WoW is running
+ * - reads WowPresence\discord_wow_status.json
+ * - publishes Discord Rich Presence over the local Discord IPC named pipe
+ * - exits when WoW_Modernized.exe exits
+ */
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+#include <tlhelp32.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+
+#define STATUS_MAX_AGE 30
+#define TICK_MS 2000
+#define PIPE_COUNT 10
+#define IPC_OPCODE_HANDSHAKE 0u
+#define IPC_OPCODE_FRAME 1u
+
+typedef struct {
+    char name[32];
+    char zone[80];
+    char guild[64];
+    char faction[24];
+    char class_name[32];
+    char race[32];
+    int level;
+    long long ts;
+    int ok;
+    int in_world;
+} Status;
+
+typedef struct {
+    HANDLE pipe;
+    char last_activity[768];
+    unsigned long nonce;
+} DiscordRpc;
+
+static int own_directory(char *out, size_t out_size) {
+    char path[MAX_PATH];
+    char *slash;
+    if (!GetModuleFileNameA(NULL, path, MAX_PATH)) return 0;
+    slash = strrchr(path, '\\');
+    if (!slash) slash = strrchr(path, '/');
+    if (!slash) return 0;
+    *slash = 0;
+    if (strlen(path) + 1 > out_size) return 0;
+    lstrcpynA(out, path, (int)out_size);
+    return 1;
+}
+
+static int support_directory(char *out, size_t out_size) {
+    char root[MAX_PATH];
+    if (!own_directory(root, sizeof(root))) return 0;
+    if (strlen(root) + strlen("\\WowPresence") + 1 >= out_size) return 0;
+    _snprintf(out, out_size, "%s\\WowPresence", root);
+    out[out_size - 1] = 0;
+    CreateDirectoryA(out, NULL);
+    return 1;
+}
+
+static int support_file(char *out, size_t out_size, const char *name) {
+    char dir[MAX_PATH];
+    if (!support_directory(dir, sizeof(dir))) return 0;
+    if (strlen(dir) + 1 + strlen(name) + 1 > out_size) return 0;
+    _snprintf(out, out_size, "%s\\%s", dir, name);
+    out[out_size - 1] = 0;
+    return 1;
+}
+
+static void log_line(const char *text) {
+    char path[MAX_PATH];
+    HANDLE file;
+    DWORD written;
+    SYSTEMTIME st;
+    char line[1200];
+    if (!support_file(path, sizeof(path), "WowPresence.log")) return;
+    file = CreateFileA(path, FILE_APPEND_DATA, FILE_SHARE_READ | FILE_SHARE_WRITE,
+                       NULL, OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
+    if (file == INVALID_HANDLE_VALUE) return;
+    GetLocalTime(&st);
+    _snprintf(line, sizeof(line), "%04u-%02u-%02u %02u:%02u:%02u %s\r\n",
+              st.wYear, st.wMonth, st.wDay, st.wHour, st.wMinute, st.wSecond,
+              text ? text : "");
+    line[sizeof(line) - 1] = 0;
+    WriteFile(file, line, (DWORD)strlen(line), &written, NULL);
+    CloseHandle(file);
+}
+
+static int read_text_file(const char *path, char *out, size_t out_size) {
+    HANDLE file;
+    DWORD got = 0;
+    if (!out || out_size < 2) return 0;
+    out[0] = 0;
+    file = CreateFileA(path, GENERIC_READ, FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
+                       NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
+    if (file == INVALID_HANDLE_VALUE) return 0;
+    if (!ReadFile(file, out, (DWORD)(out_size - 1), &got, NULL)) {
+        CloseHandle(file);
+        return 0;
+    }
+    CloseHandle(file);
+    out[got] = 0;
+    return 1;
+}
+
+static void trim_ascii(char *text) {
+    char *start, *end;
+    if (!text) return;
+    start = text;
+    while (*start == ' ' || *start == '\t' || *start == '\r' || *start == '\n') ++start;
+    if (start != text) memmove(text, start, strlen(start) + 1);
+    end = text + strlen(text);
+    while (end > text && (end[-1] == ' ' || end[-1] == '\t' || end[-1] == '\r' || end[-1] == '\n'))
+        --end;
+    *end = 0;
+}
+
+static int valid_application_id(const char *text) {
+    size_t i, n;
+    if (!text) return 0;
+    n = strlen(text);
+    if (n < 15 || n > 24) return 0;
+    for (i = 0; i < n; ++i)
+        if (text[i] < '0' || text[i] > '9') return 0;
+    return 1;
+}
+
+static int load_application_id(char *out, size_t out_size) {
+    char path[MAX_PATH];
+    char configured_id[64] = {0};
+
+    if (!out || out_size < 25u) return 0;
+    out[0] = 0;
+
+    if (!support_file(path, sizeof(path), "discord_application_id") ||
+        !read_text_file(path, configured_id, sizeof(configured_id))) {
+        log_line("discord_application_id is missing. Add your Discord Application ID to WowPresence\\discord_application_id.");
+        return 0;
+    }
+
+    trim_ascii(configured_id);
+    if (!valid_application_id(configured_id)) {
+        log_line("discord_application_id is invalid. Replace the file contents with your numeric Discord Application ID.");
+        return 0;
+    }
+
+    lstrcpynA(out, configured_id, (int)out_size);
+    return 1;
+}
+
+static DWORD parse_target_pid(const char *cmdline) {
+    const char *p;
+    char *end = NULL;
+    unsigned long value;
+
+    if (!cmdline) return 0;
+    p = strstr(cmdline, "--pid");
+    if (!p) return 0;
+    p += 5;
+    while (*p == ' ' || *p == '\t') ++p;
+    if (!*p) return 0;
+
+    value = strtoul(p, &end, 10);
+    if (end == p || value == 0 || value > 0xFFFFFFFFul) return 0;
+    return (DWORD)value;
+}
+
+static DWORD find_process(const char *exe_name) {
+    HANDLE snapshot;
+    PROCESSENTRY32 entry;
+    DWORD pid = 0;
+    snapshot = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
+    if (snapshot == INVALID_HANDLE_VALUE) return 0;
+    memset(&entry, 0, sizeof(entry));
+    entry.dwSize = sizeof(entry);
+    if (Process32First(snapshot, &entry)) {
+        do {
+            if (_stricmp(entry.szExeFile, exe_name) == 0) {
+                pid = entry.th32ProcessID;
+                break;
+            }
+        } while (Process32Next(snapshot, &entry));
+    }
+    CloseHandle(snapshot);
+    return pid;
+}
+
+static const char *find_key(const char *json, const char *key) {
+    static char pattern[80];
+    const char *p;
+    _snprintf(pattern, sizeof(pattern), "\"%s\":", key);
+    pattern[sizeof(pattern) - 1] = 0;
+    p = strstr(json, pattern);
+    return p ? p + strlen(pattern) : NULL;
+}
+
+static int json_bool(const char *json, const char *key, int *value) {
+    const char *p = find_key(json, key);
+    if (!p || !value) return 0;
+    while (*p == ' ' || *p == '\t') ++p;
+    if (strncmp(p, "true", 4) == 0) { *value = 1; return 1; }
+    if (strncmp(p, "false", 5) == 0) { *value = 0; return 1; }
+    return 0;
+}
+
+static int json_int64(const char *json, const char *key, long long *value) {
+    const char *p = find_key(json, key);
+    char *end = NULL;
+    long long v;
+    if (!p || !value) return 0;
+    v = _strtoi64(p, &end, 10);
+    if (end == p) return 0;
+    *value = v;
+    return 1;
+}
+
+static int json_int(const char *json, const char *key, int *value) {
+    long long v = 0;
+    if (!json_int64(json, key, &v)) return 0;
+    *value = (int)v;
+    return 1;
+}
+
+static int json_string(const char *json, const char *key, char *out, size_t out_size) {
+    const char *p = find_key(json, key);
+    size_t w = 0;
+    if (!p || !out || out_size < 2) return 0;
+    while (*p == ' ' || *p == '\t') ++p;
+    if (*p++ != '"') return 0;
+    while (*p && *p != '"' && w + 1 < out_size) {
+        if (*p == '\\') {
+            ++p;
+            if (!*p) break;
+            if (*p == '"' || *p == '\\' || *p == '/') out[w++] = *p++;
+            else if (*p == 'n') { out[w++] = '\n'; ++p; }
+            else if (*p == 'r') { out[w++] = '\r'; ++p; }
+            else if (*p == 't') { out[w++] = '\t'; ++p; }
+            else return 0;
+        } else {
+            out[w++] = *p++;
+        }
+    }
+    out[w] = 0;
+    return *p == '"';
+}
+
+static int load_status(Status *status) {
+    char path[MAX_PATH], json[2048];
+    time_t now;
+    memset(status, 0, sizeof(*status));
+    if (!support_file(path, sizeof(path), "discord_wow_status.json")) return 0;
+    if (!read_text_file(path, json, sizeof(json))) return 0;
+    if (!json_bool(json, "ok", &status->ok) ||
+        !json_bool(json, "in_world", &status->in_world) ||
+        !json_int64(json, "ts", &status->ts))
+        return 0;
+    now = time(NULL);
+    if (!status->ok || !status->in_world ||
+        status->ts <= 0 || (long long)now - status->ts > STATUS_MAX_AGE ||
+        status->ts - (long long)now > 5)
+        return 0;
+    json_string(json, "name", status->name, sizeof(status->name));
+    json_string(json, "zone", status->zone, sizeof(status->zone));
+    json_string(json, "guild", status->guild, sizeof(status->guild));
+    json_string(json, "faction", status->faction, sizeof(status->faction));
+    json_string(json, "class", status->class_name, sizeof(status->class_name));
+    json_string(json, "race", status->race, sizeof(status->race));
+    json_int(json, "level", &status->level);
+    return status->name[0] || status->zone[0] || status->level > 0;
+}
+
+static int rpc_read_packet(HANDLE pipe, char *payload, size_t payload_size) {
+    uint32_t header[2];
+    DWORD got = 0, total = 0;
+    if (!ReadFile(pipe, header, sizeof(header), &got, NULL) || got != sizeof(header)) return 0;
+    if (header[1] >= payload_size) return 0;
+    while (total < header[1]) {
+        DWORD chunk = 0;
+        if (!ReadFile(pipe, payload + total, header[1] - total, &chunk, NULL) || chunk == 0)
+            return 0;
+        total += chunk;
+    }
+    payload[total] = 0;
+    return 1;
+}
+
+static int rpc_write_packet(HANDLE pipe, uint32_t opcode, const char *json) {
+    unsigned char buffer[2048];
+    uint32_t *header = (uint32_t *)buffer;
+    DWORD written = 0;
+    size_t len = strlen(json);
+    if (len + 8 > sizeof(buffer)) return 0;
+    header[0] = opcode;
+    header[1] = (uint32_t)len;
+    memcpy(buffer + 8, json, len);
+    return WriteFile(pipe, buffer, (DWORD)(len + 8), &written, NULL) &&
+           written == (DWORD)(len + 8);
+}
+
+static void rpc_close(DiscordRpc *rpc) {
+    if (rpc->pipe && rpc->pipe != INVALID_HANDLE_VALUE) CloseHandle(rpc->pipe);
+    rpc->pipe = INVALID_HANDLE_VALUE;
+    rpc->last_activity[0] = 0;
+}
+
+static int rpc_connect(DiscordRpc *rpc, const char *application_id) {
+    int i;
+    char pipe_name[64], handshake[160], response[2048];
+    rpc_close(rpc);
+    for (i = 0; i < PIPE_COUNT; ++i) {
+        _snprintf(pipe_name, sizeof(pipe_name), "\\\\.\\pipe\\discord-ipc-%d", i);
+        rpc->pipe = CreateFileA(pipe_name, GENERIC_READ | GENERIC_WRITE, 0, NULL,
+                                OPEN_EXISTING, 0, NULL);
+        if (rpc->pipe != INVALID_HANDLE_VALUE) break;
+    }
+    if (rpc->pipe == INVALID_HANDLE_VALUE) return 0;
+    _snprintf(handshake, sizeof(handshake), "{\"v\":1,\"client_id\":\"%s\"}", application_id);
+    if (!rpc_write_packet(rpc->pipe, IPC_OPCODE_HANDSHAKE, handshake) ||
+        !rpc_read_packet(rpc->pipe, response, sizeof(response)) ||
+        (!strstr(response, "\"READY\"") && !strstr(response, "\"evt\":\"READY\""))) {
+        rpc_close(rpc);
+        return 0;
+    }
+    log_line("Connected to Discord IPC.");
+    return 1;
+}
+
+static void title_case_faction(char *text) {
+    if (text && text[0] >= 'a' && text[0] <= 'z') text[0] = (char)(text[0] - 'a' + 'A');
+}
+
+static void format_activity(const Status *s, char *out, size_t out_size, long long session_start) {
+    char details[384] = {0};
+    char extra[192] = {0};
+    char faction[24] = {0};
+    if (s->faction[0]) {
+        lstrcpynA(faction, s->faction, sizeof(faction));
+        title_case_faction(faction);
+    }
+
+    if (s->name[0] && s->guild[0])
+        _snprintf(details, sizeof(details), "%s <%s>", s->name, s->guild);
+    else if (s->name[0])
+        _snprintf(details, sizeof(details), "%s", s->name);
+    else if (s->guild[0])
+        _snprintf(details, sizeof(details), "<%s>", s->guild);
+
+    if (s->level > 0 && s->class_name[0])
+        _snprintf(extra, sizeof(extra), "Lvl %d %s", s->level, s->class_name);
+    else if (s->level > 0)
+        _snprintf(extra, sizeof(extra), "Lvl %d", s->level);
+    else if (s->class_name[0])
+        _snprintf(extra, sizeof(extra), "%s", s->class_name);
+
+    if (s->race[0]) {
+        size_t used = strlen(extra);
+        if (used)
+            _snprintf(extra + used, sizeof(extra) - used, " \\u00b7 %s", s->race);
+        else
+            _snprintf(extra, sizeof(extra), "%s", s->race);
+    }
+
+    if (faction[0]) {
+        size_t used = strlen(extra);
+        if (used)
+            _snprintf(extra + used, sizeof(extra) - used, " \\u00b7 %s", faction);
+        else
+            _snprintf(extra, sizeof(extra), "%s", faction);
+    }
+
+    if (details[0] && extra[0]) {
+        size_t used = strlen(details);
+        _snprintf(details + used, sizeof(details) - used, " \\u00b7 %s", extra);
+    } else if (!details[0] && extra[0]) {
+        lstrcpynA(details, extra, sizeof(details));
+    }
+
+    _snprintf(out, out_size,
+              "{\"details\":\"%s\",\"state\":\"%s\",\"timestamps\":{\"start\":%lld}}",
+              details, s->zone, session_start);
+    out[out_size - 1] = 0;
+}
+
+static int rpc_set_activity(DiscordRpc *rpc, DWORD pid, const char *activity_json) {
+    char command[1400], response[2048];
+    if (!rpc || rpc->pipe == INVALID_HANDLE_VALUE) return 0;
+    if (strcmp(rpc->last_activity, activity_json) == 0) return 1;
+    ++rpc->nonce;
+    _snprintf(command, sizeof(command),
+              "{\"cmd\":\"SET_ACTIVITY\",\"args\":{\"pid\":%lu,\"activity\":%s},"
+              "\"nonce\":\"%lu\"}",
+              (unsigned long)pid, activity_json, rpc->nonce);
+    command[sizeof(command) - 1] = 0;
+    if (!rpc_write_packet(rpc->pipe, IPC_OPCODE_FRAME, command) ||
+        !rpc_read_packet(rpc->pipe, response, sizeof(response))) {
+        rpc_close(rpc);
+        return 0;
+    }
+    if (strstr(response, "\"ERROR\"")) {
+        log_line(response);
+        return 0;
+    }
+    lstrcpynA(rpc->last_activity, activity_json, sizeof(rpc->last_activity));
+    return 1;
+}
+
+static void rpc_clear(DiscordRpc *rpc, DWORD pid) {
+    char command[256], response[1024];
+    if (!rpc || rpc->pipe == INVALID_HANDLE_VALUE) return;
+    ++rpc->nonce;
+    _snprintf(command, sizeof(command),
+              "{\"cmd\":\"SET_ACTIVITY\",\"args\":{\"pid\":%lu,\"activity\":null},"
+              "\"nonce\":\"%lu\"}",
+              (unsigned long)pid, rpc->nonce);
+    rpc_write_packet(rpc->pipe, IPC_OPCODE_FRAME, command);
+    rpc_read_packet(rpc->pipe, response, sizeof(response));
+}
+
+int WINAPI WinMain(HINSTANCE instance, HINSTANCE prev, LPSTR cmdline, int show) {
+    char application_id[64] = {0};
+    DiscordRpc rpc;
+    HANDLE wow_process = NULL;
+    DWORD pid = 0;
+    DWORD requested_pid = 0;
+    int have_id;
+    int wait_loops = 0;
+    long long session_start = 0;
+    (void)instance; (void)prev; (void)show;
+
+    memset(&rpc, 0, sizeof(rpc));
+    rpc.pipe = INVALID_HANDLE_VALUE;
+    rpc.nonce = (unsigned long)GetTickCount();
+
+    have_id = load_application_id(application_id, sizeof(application_id));
+    if (!have_id) {
+        log_line("Discord Rich Presence is disabled until a valid discord_application_id is configured.");
+    }
+
+    /* Normal path: WowPresence.dll passes the exact WoW process id.
+     * The name scan remains only as a harmless manual/debug fallback. */
+    requested_pid = parse_target_pid(cmdline);
+    pid = requested_pid;
+
+    while (!pid && wait_loops++ < 25) {
+        pid = find_process("WoW_Modernized.exe");
+        if (!pid) Sleep(200);
+    }
+    if (!pid) {
+        log_line("No running WoW_Modernized.exe found; WowPresence exiting.");
+        return 0;
+    }
+
+    wow_process = OpenProcess(SYNCHRONIZE, FALSE, pid);
+    if (!wow_process) {
+        log_line("Could not open the target WoW process; WowPresence exiting.");
+        return 0;
+    }
+
+    log_line("WoW_Modernized.exe detected.");
+    /* Fixed for the lifetime of this WoW process. Text updates, character
+     * changes and loading states reuse the same Discord elapsed-time origin. */
+    session_start = (long long)time(NULL);
+
+    while (WaitForSingleObject(wow_process, 0) == WAIT_TIMEOUT) {
+        Status status;
+        char activity[768];
+
+        if (have_id && rpc.pipe == INVALID_HANDLE_VALUE)
+            rpc_connect(&rpc, application_id);
+
+        if (have_id && rpc.pipe != INVALID_HANDLE_VALUE) {
+            if (load_status(&status)) {
+                format_activity(&status, activity, sizeof(activity), session_start);
+                rpc_set_activity(&rpc, pid, activity);
+            } else {
+                /* Keep only the Discord application header while the game is
+                 * loading, on character select, or when the snapshot is stale.
+                 * This also prevents old character/zone text from lingering. */
+                _snprintf(activity, sizeof(activity),
+                          "{\"timestamps\":{\"start\":%lld}}", session_start);
+                activity[sizeof(activity) - 1] = 0;
+                rpc_set_activity(&rpc, pid, activity);
+            }
+        }
+        Sleep(TICK_MS);
+    }
+
+    if (rpc.pipe != INVALID_HANDLE_VALUE) {
+        rpc_clear(&rpc, pid);
+        rpc_close(&rpc);
+    }
+    CloseHandle(wow_process);
+    log_line("WoW stopped; WowPresence exiting.");
+    return 0;
+}