fix build warnings

Block root unless --run-as-root

docs/_static/css/zoitechat-docs.css

@@ -78,6 +78,11 @@ a {
     text-decoration: none;
 }
 
+::selection {
+    background: var(--accent);
+    color: #fff8ea;
+}
+
 button,
 input,
 textarea,
@@ -139,6 +144,7 @@ select {
     z-index: 2000;
     border-bottom: 3px solid var(--rule);
     background: rgba(238, 229, 211, 0.94);
+    -webkit-backdrop-filter: blur(8px);
     backdrop-filter: blur(8px);
 }
 
@@ -231,6 +237,17 @@ select {
     font-weight: 900;
 }
 
+.site-nav a[aria-current="page"] {
+    border-block-color: var(--rule);
+    background: var(--panel-dark);
+    color: var(--paper-warm);
+    box-shadow: inset 0 -0.3rem 0 var(--accent);
+}
+
+.site-nav a[aria-current="page"]::before {
+    color: #d19b25;
+}
+
 .site-nav a:hover,
 .site-nav a:focus-visible {
     border-block-color: var(--rule);
@@ -511,6 +528,7 @@ select {
     font-weight: 900;
     line-height: 1.18;
     box-shadow: 4px 4px 0 var(--rule);
+    touch-action: manipulation;
     transition: transform 0.12s ease, background-color 0.12s ease, color 0.12s ease, box-shadow 0.12s ease;
 }
 
@@ -527,6 +545,11 @@ select {
     outline: none;
 }
 
+.button:active {
+    transform: translate(3px, 3px);
+    box-shadow: none;
+}
+
 .button-primary {
     background: var(--accent);
     color: #fff8ea;
@@ -1176,6 +1199,11 @@ select {
     color: rgba(255, 248, 234, 0.82);
 }
 
+.footer-links a {
+    width: fit-content;
+    border-bottom: 1px solid transparent;
+}
+
 .footer-links a::before {
     color: #d19b25;
     content: "↳ ";
@@ -1184,6 +1212,7 @@ select {
 .footer-links a:hover,
 .footer-links a:focus-visible {
     color: #fff8ea;
+    border-bottom-color: currentColor;
     outline: none;
 }
 
@@ -1549,6 +1578,17 @@ body a {
     font-weight: 900 !important;
 }
 
+#navbar-top .site-nav a[aria-current="page"] {
+    border-block-color: var(--rule) !important;
+    background: var(--panel-dark) !important;
+    color: var(--paper-warm) !important;
+    box-shadow: inset 0 -0.3rem 0 var(--accent) !important;
+}
+
+#navbar-top .site-nav a[aria-current="page"]::before {
+    color: #d19b25 !important;
+}
+
 #navbar-top .site-nav a:hover,
 #navbar-top .site-nav a:focus-visible,
 #navbar-top .site-nav summary:hover,
@@ -1735,6 +1775,7 @@ footer.site-footer-lite {
 }
 
 .document .body p {
+    max-width: 78ch;
     margin: 0 0 1rem !important;
 }
 
@@ -1780,6 +1821,7 @@ ul.search a:focus-visible {
 
 .document .body ul,
 .document .body ol {
+    max-width: 78ch;
     margin: 0.75rem 0 1.4rem !important;
     padding-left: 1.35rem !important;
 }
@@ -1929,6 +1971,11 @@ ul.search a:focus-visible {
     text-transform: uppercase !important;
 }
 
+.document .body table tbody tr:hover td,
+.document .body table tbody tr:focus-within td {
+    background: var(--accent-soft) !important;
+}
+
 .admonition,
 .note,
 .warning,
@@ -2068,6 +2115,7 @@ input[type="submit"],
     line-height: 1.18 !important;
     text-shadow: none !important;
     box-shadow: 4px 4px 0 var(--rule) !important;
+    touch-action: manipulation;
 }
 
 .btn:hover,
@@ -2083,6 +2131,13 @@ input[type="submit"]:focus-visible {
     outline: none !important;
 }
 
+.btn:active,
+button:active,
+input[type="submit"]:active {
+    transform: translate(3px, 3px) !important;
+    box-shadow: none !important;
+}
+
 #navbar-related {
     min-height: auto !important;
     margin: 1rem 0 1.5rem !important;

docs/_theme/basicstrap/layout.html

@@ -264,7 +264,7 @@
           <a href="https://zoitechat.org/addons.php">Addons</a>
           <a href="https://zoitechat.org/announcements.php">Announcements</a>
           <a href="https://zoitechat.org/download.php">Download</a>
-          <a href="{{ pathto(master_doc) }}">Docs</a>
+          <a href="{{ pathto(master_doc) }}" aria-current="page">Docs</a>
           <a href="https://github.com/ZoiteChat/zoitechat" target="_blank" rel="noopener">GitHub</a>
           <details class="nav-menu">
             <summary>IRC Support</summary>

plugins/sysinfo/meson.build

@@ -6,50 +6,66 @@ sysinfo_sources = [
 sysinfo_deps = [
   libgio_dep,
   zoitechat_plugin_dep,
-  common_sysinfo_deps,
 ]
 
 sysinfo_includes = []
 sysinfo_cargs = ['-DHAVE_CONFIG_H']
 
 system = host_machine.system()
-if system == 'linux' or system == 'gnu' or system.startswith('gnu/') or system == 'darwin' or system == 'freebsd'
+if system == 'linux'
-  sysinfo_includes += 'shared'
+  if get_option('gtk-frontend')
+    sysinfo_deps += dependency('gtk+-3.0', version: '>= 3.22')
+  endif
+
+  libpci = dependency('libpci', required: false, method: 'pkg-config')
+  if libpci.found()
+    sysinfo_deps += libpci
+    sysinfo_cargs += '-DHAVE_LIBPCI'
+  endif
+
+  sysinfo_includes += 'unix'
+  sysinfo_sources += 'unix/modern-backend.c'
+
+elif system == 'freebsd' or system == 'gnu' or system.startswith('gnu/')
+  sysinfo_includes += ['shared', 'unix']
   sysinfo_sources += [
-    'shared/df.c'
+    'shared/df.c',
+    'unix/backend.c',
+    'unix/match.c',
+    'unix/parse.c',
   ]
 
-  if system == 'linux' or system == 'gnu' or system.startswith('gnu/') or system == 'freebsd'
   libpci = dependency('libpci', required: false, method: 'pkg-config')
   if libpci.found()
     sysinfo_deps += libpci
     sysinfo_cargs += '-DHAVE_LIBPCI'
     sysinfo_sources += 'unix/pci.c'
 
-      picidsdir = libpci.get_variable(pkgconfig : 'idsdir') 
+    picidsdir = libpci.get_variable(pkgconfig: 'idsdir')
     pciids = join_paths(picidsdir, 'pci.ids')
     sysinfo_cargs += '-DPCIIDS_FILE="@0@"'.format(pciids)
   endif
+
   if get_option('gtk-frontend')
     sysinfo_deps += dependency('gtk+-3.0', version: '>= 3.22')
   endif
 
-    sysinfo_includes += 'unix'
+elif system == 'darwin'
-    sysinfo_sources += [
+  sysinfo_includes += 'shared'
-      'unix/backend.c',
+  sysinfo_sources += 'shared/df.c'
-      'unix/match.c',
-      'unix/parse.c',
-    ]
-  elif system == 'darwin'
   add_languages('objc')
   sysinfo_sources += 'osx/backend.m'
-  endif
 
 elif system == 'windows'
-  sysinfo_sources += [
+  cc = meson.get_compiler('c')
-    'win32/backend.c',
+  sysinfo_deps += [
-    '../../src/common/sysinfo/win32/backend.c'
+    cc.find_library('advapi32', required: true),
+    cc.find_library('dxgi', required: true),
+    cc.find_library('dxguid', required: true),
+    cc.find_library('iphlpapi', required: true),
+    cc.find_library('winmm', required: true),
   ]
+  sysinfo_sources += 'win32/backend.c'
 else
   error('sysinfo: Unknown system?')
 endif

plugins/sysinfo/sysinfo.c

@@ -40,8 +40,8 @@ static zoitechat_plugin *ph;
 
 static char name[] = "Sysinfo";
 static char desc[] = "Display info about your hardware and OS";
-static char version[] = "1.0";
+static char version[] = "2.0";
-static char sysinfo_help[] = "SysInfo Usage:\n  /SYSINFO [-e|-o] [CLIENT|UI|OS|CPU|RAM|STORAGE|GPU|CHIPSET|SOUND|ETHERNET|UPTIME], print various details about your system or print a summary without arguments\n  /SYSINFO SET <variable>\n";
+static char sysinfo_help[] = "SysInfo Usage:\n  /SYSINFO [-e|-o] [CLIENT|UI|OS|CPU|RAM|MEMORY|STORAGE|DISK|GPU|VGA|CHIPSET|SOUND|NETWORK|ETHERNET|UPTIME], print various details about your system or print a summary without arguments\n  /SYSINFO SET <variable>\n";
 
 typedef struct
 {
@@ -68,11 +68,11 @@ static hwinfo hwinfos[] = {
 	{"os", "OS", sysinfo_backend_get_os},
 	{"cpu", "CPU", sysinfo_backend_get_cpu},
 	{"memory", "Memory", sysinfo_backend_get_memory},
-	{"storage", "Storage", sysinfo_backend_get_disk, TRUE},
+        {"storage", "Storage", sysinfo_backend_get_disk},
 	{"gpu", "GPU", sysinfo_backend_get_gpu},
-	{"chipset", "CHIPSET", sysinfo_backend_get_chipset, TRUE},
+	{"chipset", "Chipset", sysinfo_backend_get_chipset, TRUE},
 	{"sound", "Sound", sysinfo_backend_get_sound, TRUE},
-	{"ethernet", "Ethernet", sysinfo_backend_get_network, TRUE},
+	{"ethernet", "Network", sysinfo_backend_get_network, TRUE},
 	{"uptime", "Uptime", sysinfo_backend_get_uptime},
 	{NULL, NULL},
 };
@@ -115,14 +115,30 @@ print_summary (gboolean announce)
 	g_free (output);
 }
 
+static const char *
+normalize_info_name (const char *info)
+{
+	if (!g_ascii_strcasecmp (info, "ram"))
+		return "memory";
+	if (!g_ascii_strcasecmp (info, "disk"))
+		return "storage";
+	if (!g_ascii_strcasecmp (info, "vga"))
+		return "gpu";
+	if (!g_ascii_strcasecmp (info, "network"))
+		return "ethernet";
+
+	return info;
+}
+
 static void
 print_info (char *info, gboolean announce)
 {
+	const char *normalized = normalize_info_name (info);
 	int i;
 
 	for (i = 0; hwinfos[i].name != NULL; i++)
 	{
-		if (!g_ascii_strcasecmp (info, hwinfos[i].name))
+		if (!g_ascii_strcasecmp (normalized, hwinfos[i].name))
 		{
 			char *str = hwinfos[i].callback();
 			if (str)
@@ -183,12 +199,17 @@ sysinfo_set_pref (char *key, char *value)
 	}
 	else if (g_str_has_prefix (key, "hide_"))
 	{
+		const char *normalized = normalize_info_name (key + 5);
 		int i;
+
 		for (i = 0; hwinfos[i].name != NULL; i++)
 		{
-			if (!strcmp (key + 5, hwinfos[i].name))
+			if (!strcmp (normalized, hwinfos[i].name))
 			{
-				sysinfo_set_pref_real (key, value, hwinfos[i].def);
+				char canonical[32];
+
+				g_snprintf (canonical, sizeof (canonical), "hide_%s", hwinfos[i].name);
+				sysinfo_set_pref_real (canonical, value, hwinfos[i].def);
 				return;
 			}
 		}

plugins/sysinfo/win32/backend.c

@@ -1,28 +1,34 @@
-/* ZoiteChat
+/*
- * Copyright (c) 2011-2012 Berke Viktor.
+ * Modern Windows SysInfo backend for ZoiteChat.
  *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * Avoids WMI in the plugin hot path and uses native Win32/DXGI APIs.
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
  */
 
-#include <stdio.h>
+#ifndef _WIN32_WINNT
+#define _WIN32_WINNT 0x0601
+#elif _WIN32_WINNT < 0x0601
+#undef _WIN32_WINNT
+#define _WIN32_WINNT 0x0601
+#endif
+
+#include <winsock2.h>
 #include <windows.h>
-#include <wbemidl.h>
+#include <winternl.h>
+#include <dxgi.h>
+#include <iphlpapi.h>
+#include <ipifcons.h>
+#include <mmsystem.h>
+
+#ifdef _MSC_VER
+#pragma comment(lib, "advapi32.lib")
+#pragma comment(lib, "dxgi.lib")
+#pragma comment(lib, "dxguid.lib")
+#pragma comment(lib, "iphlpapi.lib")
+#pragma comment(lib, "winmm.lib")
+#endif
+#include <stdint.h>
+#include <stdio.h>
+#include <string.h>
 
 #include <glib.h>
 
@@ -30,63 +36,548 @@
 #include "config.h"
 #endif
 
-#include "../../../src/common/sysinfo/sysinfo.h"
-
 #include "../format.h"
+#include "../sysinfo-backend.h"
 
-static char *get_memory_info (void);
+#define SYSINFO_SEP " \xC2\xB7 "
 
-char *
+typedef struct
-sysinfo_backend_get_sound (void)
 {
-	return NULL;
+	char *os;
-}
+	char *cpu;
+	char *gpu;
+	char *sound;
+} WinStaticSnapshot;
 
-char *
+static WinStaticSnapshot snapshot;
-sysinfo_backend_get_network (void)
+static gsize os_initialized = 0;
+static gsize cpu_initialized = 0;
+static gsize gpu_initialized = 0;
+static gsize sound_initialized = 0;
+
+static char *wide_to_utf8 (const WCHAR *value);
+static char *read_registry_string (HKEY root, const WCHAR *subkey, const WCHAR *value_name);
+static gboolean read_registry_dword (HKEY root, const WCHAR *subkey, const WCHAR *value_name, DWORD *value);
+static const char *get_native_arch (void);
+static DWORD get_windows_build_number (void);
+static char *build_os_string (void);
+static DWORD count_physical_cores (void);
+static char *build_cpu_string (void);
+static char *build_gpu_string (void);
+static char *build_sound_string (void);
+static void ensure_os_snapshot (void);
+static void ensure_cpu_snapshot (void);
+static void ensure_gpu_snapshot (void);
+static void ensure_sound_snapshot (void);
+static char *format_usage (guint64 total, guint64 available);
+static char *join_ptr_array (GPtrArray *items, const char *separator);
+static void ptr_array_add_unique (GPtrArray *items, const char *value);
+static gboolean adapter_looks_virtual (const char *name);
+
+static char *
+wide_to_utf8 (const WCHAR *value)
 {
-	return NULL;
+	if (!value || value[0] == L'\0')
-}
-
-char *
-sysinfo_backend_get_uptime (void)
-{
-	return sysinfo_format_uptime (GetTickCount64 () / 1000);
-}
-
-char *
-sysinfo_backend_get_disk (void)
-{
-	guint64 hdd_capacity;
-	guint64 hdd_free_space;
-
-	sysinfo_get_hdd_info (&hdd_capacity, &hdd_free_space);
-
-	if (hdd_capacity != 0)
 	{
-		return sysinfo_format_disk(hdd_capacity, hdd_free_space);
+		return NULL;
 	}
 
+	return g_utf16_to_utf8 ((const gunichar2 *) value, -1, NULL, NULL, NULL);
+}
+
+static char *
+read_registry_string (HKEY root, const WCHAR *subkey, const WCHAR *value_name)
+{
+	HKEY key;
+	DWORD type = 0;
+	DWORD size = 0;
+	WCHAR *buffer;
+	char *result = NULL;
+	LONG status;
+
+	status = RegOpenKeyExW (root, subkey, 0, KEY_READ | KEY_WOW64_64KEY, &key);
+	if (status != ERROR_SUCCESS)
+	{
 		return NULL;
+	}
+
+	status = RegQueryValueExW (key, value_name, NULL, &type, NULL, &size);
+	if (status != ERROR_SUCCESS || (type != REG_SZ && type != REG_EXPAND_SZ) || size < sizeof (WCHAR))
+	{
+		RegCloseKey (key);
+		return NULL;
+	}
+
+	buffer = g_malloc0 ((gsize) size + sizeof (WCHAR));
+	status = RegQueryValueExW (key, value_name, NULL, &type, (LPBYTE) buffer, &size);
+	if (status == ERROR_SUCCESS)
+	{
+		result = wide_to_utf8 (buffer);
+		if (result)
+		{
+			g_strstrip (result);
+		}
+	}
+
+	g_free (buffer);
+	RegCloseKey (key);
+	return result;
+}
+
+static gboolean
+read_registry_dword (HKEY root, const WCHAR *subkey, const WCHAR *value_name, DWORD *value)
+{
+	HKEY key;
+	DWORD type = 0;
+	DWORD size = sizeof (*value);
+	LONG status;
+
+	status = RegOpenKeyExW (root, subkey, 0, KEY_READ | KEY_WOW64_64KEY, &key);
+	if (status != ERROR_SUCCESS)
+	{
+		return FALSE;
+	}
+
+	status = RegQueryValueExW (key, value_name, NULL, &type, (LPBYTE) value, &size);
+	RegCloseKey (key);
+	return status == ERROR_SUCCESS && type == REG_DWORD;
+}
+
+static const char *
+get_native_arch (void)
+{
+	SYSTEM_INFO info;
+
+	GetNativeSystemInfo (&info);
+	switch (info.wProcessorArchitecture)
+	{
+	case PROCESSOR_ARCHITECTURE_AMD64:
+		return "x64";
+	case PROCESSOR_ARCHITECTURE_ARM64:
+		return "ARM64";
+	case PROCESSOR_ARCHITECTURE_INTEL:
+		return "x86";
+	default:
+		return "unknown-arch";
+	}
+}
+
+static DWORD
+get_windows_build_number (void)
+{
+	typedef LONG (WINAPI *RtlGetVersionFn) (PRTL_OSVERSIONINFOW);
+	HMODULE ntdll;
+	RtlGetVersionFn rtl_get_version;
+	RTL_OSVERSIONINFOW version;
+	DWORD build = 0;
+
+	ntdll = GetModuleHandleW (L"ntdll.dll");
+	if (ntdll)
+	{
+		rtl_get_version = (RtlGetVersionFn) GetProcAddress (ntdll, "RtlGetVersion");
+		if (rtl_get_version)
+		{
+			ZeroMemory (&version, sizeof (version));
+			version.dwOSVersionInfoSize = sizeof (version);
+			if (rtl_get_version (&version) == 0)
+			{
+				build = version.dwBuildNumber;
+			}
+		}
+	}
+
+	return build;
+}
+
+static char *
+build_os_string (void)
+{
+	static const WCHAR current_version_key[] = L"SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion";
+	char *product;
+	char *display_version;
+	char *registry_build;
+	char *fixed_product = NULL;
+	char *result;
+	DWORD ubr = 0;
+	DWORD build;
+	guint64 parsed_build = 0;
+
+	product = read_registry_string (HKEY_LOCAL_MACHINE, current_version_key, L"ProductName");
+	display_version = read_registry_string (HKEY_LOCAL_MACHINE, current_version_key, L"DisplayVersion");
+	registry_build = read_registry_string (HKEY_LOCAL_MACHINE, current_version_key, L"CurrentBuildNumber");
+	read_registry_dword (HKEY_LOCAL_MACHINE, current_version_key, L"UBR", &ubr);
+
+	build = get_windows_build_number ();
+	if (registry_build)
+	{
+		parsed_build = g_ascii_strtoull (registry_build, NULL, 10);
+		if (parsed_build != 0)
+		{
+			build = (DWORD) parsed_build;
+		}
+	}
+
+	if (!product)
+	{
+		product = g_strdup (build >= 22000 ? "Windows 11" : "Windows");
+	}
+	else if (build >= 22000 && g_str_has_prefix (product, "Windows 10"))
+	{
+		fixed_product = g_strdup_printf ("Windows 11%s", product + strlen ("Windows 10"));
+		g_free (product);
+		product = fixed_product;
+	}
+
+	if (display_version && build != 0)
+	{
+		result = g_strdup_printf ("%s %s" SYSINFO_SEP "build %lu.%lu" SYSINFO_SEP "%s",
+			product, display_version, (unsigned long) build, (unsigned long) ubr, get_native_arch ());
+	}
+	else if (build != 0)
+	{
+		result = g_strdup_printf ("%s" SYSINFO_SEP "build %lu.%lu" SYSINFO_SEP "%s",
+			product, (unsigned long) build, (unsigned long) ubr, get_native_arch ());
+	}
+	else
+	{
+		result = g_strdup_printf ("%s" SYSINFO_SEP "%s", product, get_native_arch ());
+	}
+
+	g_free (product);
+	g_free (display_version);
+	g_free (registry_build);
+	return result;
+}
+
+static DWORD
+count_physical_cores (void)
+{
+	DWORD length = 0;
+	PSYSTEM_LOGICAL_PROCESSOR_INFORMATION_EX buffer;
+	BYTE *cursor;
+	BYTE *end;
+	DWORD cores = 0;
+
+	GetLogicalProcessorInformationEx (RelationProcessorCore, NULL, &length);
+	if (GetLastError () != ERROR_INSUFFICIENT_BUFFER || length == 0)
+	{
+		return 0;
+	}
+
+	buffer = g_malloc0 (length);
+	if (!GetLogicalProcessorInformationEx (RelationProcessorCore, buffer, &length))
+	{
+		g_free (buffer);
+		return 0;
+	}
+
+	cursor = (BYTE *) buffer;
+	end = cursor + length;
+	while (cursor < end)
+	{
+		PSYSTEM_LOGICAL_PROCESSOR_INFORMATION_EX info = (PSYSTEM_LOGICAL_PROCESSOR_INFORMATION_EX) cursor;
+
+		if (info->Size == 0)
+		{
+			break;
+		}
+		if (info->Relationship == RelationProcessorCore)
+		{
+			cores++;
+		}
+		cursor += info->Size;
+	}
+
+	g_free (buffer);
+	return cores;
+}
+
+static char *
+build_cpu_string (void)
+{
+	static const WCHAR cpu_key[] = L"HARDWARE\\DESCRIPTION\\System\\CentralProcessor\\0";
+	char *name;
+	DWORD cores;
+	DWORD threads;
+	SYSTEM_INFO info;
+	char *result;
+
+	name = read_registry_string (HKEY_LOCAL_MACHINE, cpu_key, L"ProcessorNameString");
+	if (!name)
+	{
+		name = g_strdup ("Unknown CPU");
+	}
+
+	cores = count_physical_cores ();
+	threads = GetActiveProcessorCount (ALL_PROCESSOR_GROUPS);
+	if (threads == 0)
+	{
+		GetNativeSystemInfo (&info);
+		threads = info.dwNumberOfProcessors;
+	}
+	if (cores != 0)
+	{
+		result = g_strdup_printf ("%s" SYSINFO_SEP "%luC/%luT",
+			name, (unsigned long) cores, (unsigned long) threads);
+	}
+	else
+	{
+		/* Logical processor count cannot establish the physical core count. */
+		result = g_strdup_printf ("%s" SYSINFO_SEP "%luT", name, (unsigned long) threads);
+	}
+	g_free (name);
+	return result;
+}
+
+static char *
+join_ptr_array (GPtrArray *items, const char *separator)
+{
+	GString *joined;
+	guint i;
+
+	if (!items || items->len == 0)
+	{
+		return NULL;
+	}
+
+	joined = g_string_new (NULL);
+	for (i = 0; i < items->len; i++)
+	{
+		if (i != 0)
+		{
+			g_string_append (joined, separator);
+		}
+		g_string_append (joined, g_ptr_array_index (items, i));
+	}
+	return g_string_free (joined, FALSE);
+}
+
+static void
+ptr_array_add_unique (GPtrArray *items, const char *value)
+{
+	guint i;
+
+	if (!value || value[0] == '\0')
+	{
+		return;
+	}
+
+	for (i = 0; i < items->len; i++)
+	{
+		if (g_ascii_strcasecmp (g_ptr_array_index (items, i), value) == 0)
+		{
+			return;
+		}
+	}
+	g_ptr_array_add (items, g_strdup (value));
+}
+
+static char *
+build_gpu_string (void)
+{
+	IDXGIFactory1 *factory = NULL;
+	GPtrArray *adapters;
+	UINT index;
+	HRESULT hr;
+	char *result;
+
+	hr = CreateDXGIFactory1 (&IID_IDXGIFactory1, (void **) &factory);
+	if (FAILED (hr) || !factory)
+	{
+		return NULL;
+	}
+
+	adapters = g_ptr_array_new_with_free_func (g_free);
+	for (index = 0; ; index++)
+	{
+		IDXGIAdapter1 *adapter = NULL;
+		DXGI_ADAPTER_DESC1 desc;
+		char *name;
+		char *label;
+
+		hr = factory->lpVtbl->EnumAdapters1 (factory, index, &adapter);
+		if (hr == DXGI_ERROR_NOT_FOUND)
+		{
+			break;
+		}
+		if (FAILED (hr) || !adapter)
+		{
+			/* A failed enumeration is not another adapter. Retrying every
+			 * index can freeze the client indefinitely after a device error. */
+			break;
+		}
+
+		ZeroMemory (&desc, sizeof (desc));
+		hr = adapter->lpVtbl->GetDesc1 (adapter, &desc);
+		adapter->lpVtbl->Release (adapter);
+		if (FAILED (hr) || (desc.Flags & DXGI_ADAPTER_FLAG_SOFTWARE))
+		{
+			continue;
+		}
+
+		name = wide_to_utf8 (desc.Description);
+		if (!name)
+		{
+			continue;
+		}
+		g_strstrip (name);
+
+		if ((guint64) desc.DedicatedVideoMemory >= (512ULL * 1024ULL * 1024ULL))
+		{
+			char *vram = g_format_size_full ((guint64) desc.DedicatedVideoMemory, G_FORMAT_SIZE_IEC_UNITS);
+			label = g_strdup_printf ("%s (%s VRAM)", name, vram);
+			g_free (vram);
+		}
+		else
+		{
+			label = g_strdup (name);
+		}
+
+		ptr_array_add_unique (adapters, label);
+		g_free (label);
+		g_free (name);
+	}
+
+	factory->lpVtbl->Release (factory);
+	result = join_ptr_array (adapters, ", ");
+	g_ptr_array_free (adapters, TRUE);
+	return result;
+}
+
+static char *
+build_sound_string (void)
+{
+	UINT count;
+	UINT i;
+	GPtrArray *devices;
+	char *result;
+
+	count = waveOutGetNumDevs ();
+	if (count == 0)
+	{
+		return NULL;
+	}
+
+	devices = g_ptr_array_new_with_free_func (g_free);
+	for (i = 0; i < count; i++)
+	{
+		WAVEOUTCAPSW caps;
+		char *name;
+
+		ZeroMemory (&caps, sizeof (caps));
+		if (waveOutGetDevCapsW ((UINT_PTR) i, &caps, sizeof (caps)) != MMSYSERR_NOERROR)
+		{
+			continue;
+		}
+
+		name = wide_to_utf8 (caps.szPname);
+		if (name)
+		{
+			g_strstrip (name);
+			ptr_array_add_unique (devices, name);
+			g_free (name);
+		}
+	}
+
+	result = join_ptr_array (devices, ", ");
+	g_ptr_array_free (devices, TRUE);
+	return result;
+}
+
+static void
+ensure_os_snapshot (void)
+{
+	if (g_once_init_enter (&os_initialized))
+	{
+		snapshot.os = build_os_string ();
+		g_once_init_leave (&os_initialized, 1);
+	}
+}
+
+static void
+ensure_cpu_snapshot (void)
+{
+	if (g_once_init_enter (&cpu_initialized))
+	{
+		snapshot.cpu = build_cpu_string ();
+		g_once_init_leave (&cpu_initialized, 1);
+	}
+}
+
+static void
+ensure_gpu_snapshot (void)
+{
+	if (g_once_init_enter (&gpu_initialized))
+	{
+		snapshot.gpu = build_gpu_string ();
+		g_once_init_leave (&gpu_initialized, 1);
+	}
+}
+
+static void
+ensure_sound_snapshot (void)
+{
+	if (g_once_init_enter (&sound_initialized))
+	{
+		snapshot.sound = build_sound_string ();
+		g_once_init_leave (&sound_initialized, 1);
+	}
+}
+
+static char *
+format_usage (guint64 total, guint64 available)
+{
+	guint64 used;
+	char *used_fmt;
+	char *total_fmt;
+	char *result;
+	double percent;
+
+	if (total == 0)
+	{
+		return NULL;
+	}
+
+	if (available > total)
+	{
+		available = total;
+	}
+	used = total - available;
+	percent = ((double) used / (double) total) * 100.0;
+	used_fmt = g_format_size_full (used, G_FORMAT_SIZE_IEC_UNITS);
+	total_fmt = g_format_size_full (total, G_FORMAT_SIZE_IEC_UNITS);
+	result = g_strdup_printf ("%s / %s used (%.0f%%)", used_fmt, total_fmt, percent);
+	g_free (used_fmt);
+	g_free (total_fmt);
+	return result;
+}
+
+char *
+sysinfo_backend_get_os (void)
+{
+	ensure_os_snapshot ();
+	return g_strdup (snapshot.os);
 }
 
 char *
 sysinfo_backend_get_cpu (void)
 {
-	return sysinfo_get_cpu ();
+	ensure_cpu_snapshot ();
-}
+	return g_strdup (snapshot.cpu);
-
-char *
-sysinfo_backend_get_memory (void)
-{
-	/* Memory information is always loaded dynamically since it includes the current amount of free memory */
-	return get_memory_info ();
 }
 
 char *
 sysinfo_backend_get_gpu (void)
 {
-	return sysinfo_get_gpu ();
+	ensure_gpu_snapshot ();
+	return g_strdup (snapshot.gpu);
+}
+
+char *
+sysinfo_backend_get_sound (void)
+{
+	ensure_sound_snapshot ();
+	return g_strdup (snapshot.sound);
 }
 
 char *
@@ -96,43 +587,178 @@ sysinfo_backend_get_chipset (void)
 }
 
 char *
-sysinfo_backend_get_os (void)
+sysinfo_backend_get_memory (void)
 {
-	return sysinfo_get_os ();
+	MEMORYSTATUSEX memory;
-}
 
-static char *get_memory_info (void)
+	ZeroMemory (&memory, sizeof (memory));
-{
+	memory.dwLength = sizeof (memory);
-	MEMORYSTATUSEX meminfo = { 0 };
+	if (!GlobalMemoryStatusEx (&memory))
-	meminfo.dwLength = sizeof (meminfo);
-
-	if (!GlobalMemoryStatusEx (&meminfo))
 	{
 		return NULL;
 	}
 
-	return sysinfo_format_memory (meminfo.ullTotalPhys, meminfo.ullAvailPhys);
+	return format_usage ((guint64) memory.ullTotalPhys, (guint64) memory.ullAvailPhys);
 }
 
-static const char *sysinfo_detect_toolkit(void)
+char *
+sysinfo_backend_get_disk (void)
 {
-#if defined(USE_GTK_FRONTEND)
+	WCHAR windows_dir[MAX_PATH];
-	return "GTK3";
+	WCHAR volume_path[MAX_PATH];
-#else
+	ULARGE_INTEGER available;
+	ULARGE_INTEGER total;
+	ULARGE_INTEGER total_free;
+	char *usage;
+	char *volume_utf8;
+	char *result;
+
+	if (GetWindowsDirectoryW (windows_dir, G_N_ELEMENTS (windows_dir)) == 0)
+	{
 		return NULL;
-#endif
+	}
+	if (!GetVolumePathNameW (windows_dir, volume_path, G_N_ELEMENTS (volume_path)))
+	{
+		return NULL;
+	}
+	if (!GetDiskFreeSpaceExW (volume_path, &available, &total, &total_free))
+	{
+		return NULL;
+	}
+
+	usage = format_usage ((guint64) total.QuadPart, (guint64) available.QuadPart);
+	if (!usage)
+	{
+		return NULL;
+	}
+
+	volume_utf8 = wide_to_utf8 (volume_path);
+	if (!volume_utf8)
+	{
+		return usage;
+	}
+	g_strchomp (volume_utf8);
+	result = g_strdup_printf ("%s" SYSINFO_SEP "%s", usage, volume_utf8);
+	g_free (volume_utf8);
+	g_free (usage);
+	return result;
+}
+
+char *
+sysinfo_backend_get_uptime (void)
+{
+	return sysinfo_format_uptime ((gint64) (GetTickCount64 () / 1000ULL));
+}
+
+static gboolean
+adapter_looks_virtual (const char *name)
+{
+	char *lower;
+	gboolean result;
+
+	if (!name)
+	{
+		return FALSE;
+	}
+
+	lower = g_ascii_strdown (name, -1);
+	result = strstr (lower, "virtual") != NULL ||
+		strstr (lower, "hyper-v") != NULL ||
+		strstr (lower, "vmware") != NULL ||
+		strstr (lower, "virtualbox") != NULL ||
+		strstr (lower, "tap-windows") != NULL ||
+		strstr (lower, "wireguard") != NULL ||
+		strstr (lower, "vpn") != NULL;
+	g_free (lower);
+	return result;
+}
+
+char *
+sysinfo_backend_get_network (void)
+{
+	ULONG size = 16 * 1024;
+	ULONG status;
+	IP_ADAPTER_ADDRESSES *addresses;
+	IP_ADAPTER_ADDRESSES *adapter;
+	GPtrArray *physical;
+	GPtrArray *fallback;
+	GPtrArray *selected;
+	char *result;
+
+	addresses = g_malloc0 (size);
+	status = GetAdaptersAddresses (AF_UNSPEC,
+		GAA_FLAG_SKIP_ANYCAST | GAA_FLAG_SKIP_MULTICAST | GAA_FLAG_SKIP_DNS_SERVER,
+		NULL, addresses, &size);
+	if (status == ERROR_BUFFER_OVERFLOW)
+	{
+		g_free (addresses);
+		addresses = g_malloc0 (size);
+		status = GetAdaptersAddresses (AF_UNSPEC,
+			GAA_FLAG_SKIP_ANYCAST | GAA_FLAG_SKIP_MULTICAST | GAA_FLAG_SKIP_DNS_SERVER,
+			NULL, addresses, &size);
+	}
+	if (status != NO_ERROR)
+	{
+		g_free (addresses);
+		return NULL;
+	}
+
+	physical = g_ptr_array_new_with_free_func (g_free);
+	fallback = g_ptr_array_new_with_free_func (g_free);
+	for (adapter = addresses; adapter != NULL; adapter = adapter->Next)
+	{
+		char *description;
+		char *friendly;
+		const char *name;
+		const char *type;
+		char *label;
+
+		if (adapter->OperStatus != IfOperStatusUp || adapter->PhysicalAddressLength == 0)
+		{
+			continue;
+		}
+		if (adapter->IfType != IF_TYPE_ETHERNET_CSMACD && adapter->IfType != IF_TYPE_IEEE80211)
+		{
+			continue;
+		}
+
+		description = wide_to_utf8 (adapter->Description);
+		friendly = wide_to_utf8 (adapter->FriendlyName);
+		name = description && description[0] ? description : friendly;
+		if (!name)
+		{
+			g_free (description);
+			g_free (friendly);
+			continue;
+		}
+
+		type = adapter->IfType == IF_TYPE_IEEE80211 ? "Wi-Fi" : "Ethernet";
+		label = g_strdup_printf ("%s: %s", type, name);
+		ptr_array_add_unique (fallback, label);
+		if (!adapter_looks_virtual (name))
+		{
+			ptr_array_add_unique (physical, label);
+		}
+
+		g_free (label);
+		g_free (description);
+		g_free (friendly);
+	}
+	g_free (addresses);
+
+	selected = physical->len != 0 ? physical : fallback;
+	result = join_ptr_array (selected, ", ");
+	g_ptr_array_free (physical, TRUE);
+	g_ptr_array_free (fallback, TRUE);
+	return result;
 }
 
 char *
 sysinfo_backend_get_ui (void)
 {
-	const char *toolkit = sysinfo_detect_toolkit();
+#if defined(USE_GTK_FRONTEND)
-
+	return g_strdup ("Windows / GTK3");
-	/* On Windows we don't have X11/Wayland. Keep it simple. */
+#else
-	if (toolkit)
-	{
-		return g_strdup_printf ("Windows / %s", toolkit);
-	}
-
 	return g_strdup ("Windows");
+#endif
 }

src/common/fe.h

@@ -70,6 +70,9 @@ void fe_add_rawlog (struct server *serv, char *text, int len, int outbound);
 #define FE_MSG_ERROR 8
 #define FE_MSG_MARKUP 16
 void fe_message (char *msg, int flags);
+#ifdef __linux__
+void fe_root_warning (void);
+#endif
 #define FIA_READ 1
 #define FIA_WRITE 2
 #define FIA_EX 4

src/common/zoitechat.c

@@ -95,6 +95,7 @@ int zoitechat_is_quitting = FALSE;
 /* command-line args */
 int arg_dont_autoconnect = FALSE;
 int arg_skip_plugins = FALSE;
+gint arg_run_as_root = FALSE;
 char *arg_url = NULL;
 char **arg_urls = NULL;
 char *arg_command = NULL;
@@ -1175,6 +1176,25 @@ main (int argc, char *argv[])
 	HRESULT coinit_result;
 #endif
 
+#ifdef __linux__
+	for (i = 1; i < argc; i++)
+	{
+		if (strcmp (argv[i], "--") == 0)
+			break;
+		if (strcmp (argv[i], "--run-as-root") == 0)
+		{
+			arg_run_as_root = TRUE;
+			break;
+		}
+	}
+
+	if (geteuid () == 0 && !arg_run_as_root)
+	{
+		fe_root_warning ();
+		return EXIT_FAILURE;
+	}
+#endif
+
 	srand ((unsigned int) time (NULL)); /* CL: do this only once! */
 
 	/* We must check for the config dir parameter, otherwise load_config() will behave incorrectly.
@@ -1263,7 +1283,7 @@ main (int argc, char *argv[])
 #ifndef WIN32
 #ifndef __EMX__
 	/* OS/2 uses UID 0 all the time */
-	if (getuid () == 0)
+	if (getuid () == 0 && !arg_run_as_root)
 		fe_message (_("* Running IRC as root is stupid! You should\n"
 			      "  create a User Account and use that to login.\n"), FE_MSG_WARN|FE_MSG_WAIT);
 #endif

src/common/zoitechatc.h

@@ -25,6 +25,7 @@ extern struct zoitechatprefs prefs;
 extern int zoitechat_is_quitting;
 extern gint arg_skip_plugins;	/* command-line args */
 extern gint arg_dont_autoconnect;
+extern gint arg_run_as_root;
 extern char *arg_url;
 extern char **arg_urls;
 extern char *arg_command;

src/fe-gtk/fe-gtk.c

@@ -90,6 +90,9 @@ static const GOptionEntry gopt_entries[] =
  {"no-auto",	'a', 0, G_OPTION_ARG_NONE,	&arg_dont_autoconnect, N_("Don't auto connect to servers"), NULL},
  {"cfgdir",	'd', 0, G_OPTION_ARG_STRING,	&arg_cfgdir, N_("Use a different config directory"), "PATH"},
  {"no-plugins",	'n', 0, G_OPTION_ARG_NONE,	&arg_skip_plugins, N_("Don't auto load any plugins"), NULL},
+#ifdef __linux__
+ {"run-as-root", 0, 0, G_OPTION_ARG_NONE, &arg_run_as_root, N_("Allow ZoiteChat to run as root (unsafe)"), NULL},
+#endif
  {"plugindir",	'p', 0, G_OPTION_ARG_NONE,	&arg_show_autoload, N_("Show plugin/script auto-load directory"), NULL},
  {"configdir",	'u', 0, G_OPTION_ARG_NONE,	&arg_show_config, N_("Show user config directory"), NULL},
  {"url",	 0,  G_OPTION_FLAG_HIDDEN, G_OPTION_ARG_STRING, &arg_url, N_("Open an irc://server:port/channel?key URL"), "URL"},
@@ -103,6 +106,33 @@ static const GOptionEntry gopt_entries[] =
  {NULL}
 };
 
+#ifdef __linux__
+void
+fe_root_warning (void)
+{
+	const char *message =
+		"ZoiteChat refuses to run as root on Linux.\n\n"
+		"Run it as a normal user, or pass --run-as-root to override this protection.";
+	GtkWidget *dialog;
+
+	g_printerr ("%s\n", message);
+
+	/* A graphical session may not be accessible to root, particularly under
+	 * Wayland. Keep stderr as the fallback if GTK cannot open the display. */
+	if (!gtk_init_check (NULL, NULL))
+		return;
+
+	dialog = gtk_message_dialog_new (NULL,
+	                                 GTK_DIALOG_MODAL,
+	                                 GTK_MESSAGE_ERROR,
+	                                 GTK_BUTTONS_CLOSE,
+	                                 "%s", message);
+	gtk_window_set_title (GTK_WINDOW (dialog), "ZoiteChat");
+	gtk_dialog_run (GTK_DIALOG (dialog));
+	gtk_widget_destroy (dialog);
+}
+#endif
+
 #ifdef WIN32
 static void
 create_msg_dialog (gchar *title, gchar *message)

src/fe-text/fe-text.c

@@ -467,6 +467,9 @@ static const GOptionEntry gopt_entries[] =
  {"no-auto",	'a', 0, G_OPTION_ARG_NONE,	&arg_dont_autoconnect, N_("Don't auto connect to servers"), NULL},
  {"cfgdir",	'd', 0, G_OPTION_ARG_STRING,	&arg_cfgdir, N_("Use a different config directory"), "PATH"},
  {"no-plugins",	'n', 0, G_OPTION_ARG_NONE,	&arg_skip_plugins, N_("Don't auto load any plugins"), NULL},
+#ifdef __linux__
+ {"run-as-root", 0, 0, G_OPTION_ARG_NONE, &arg_run_as_root, N_("Allow ZoiteChat to run as root (unsafe)"), NULL},
+#endif
  {"plugindir",	'p', 0, G_OPTION_ARG_NONE,	&arg_show_autoload, N_("Show plugin/script auto-load directory"), NULL},
  {"configdir",	'u', 0, G_OPTION_ARG_NONE,	&arg_show_config, N_("Show user config directory"), NULL},
  {"url",	 0,  G_OPTION_FLAG_HIDDEN, G_OPTION_ARG_STRING,	&arg_url, N_("Open an irc://server:port/channel URL"), "URL"},
@@ -475,6 +478,16 @@ static const GOptionEntry gopt_entries[] =
  {NULL}
 };
 
+#ifdef __linux__
+void
+fe_root_warning (void)
+{
+	fputs ("ZoiteChat refuses to run as root on Linux.\n"
+	       "Run it as a normal user, or pass --run-as-root to override this protection.\n",
+	       stderr);
+}
+#endif
+
 int
 fe_args (int argc, char *argv[])
 {