initial commit

.gitignore

@@ -0,0 +1,13 @@
+*.o
+.vscode
+.cache
+.idea
+build
+builddir
+auth_service
+users.db
+users_db.json
+*.swp
+*.log
+.proxy.sh
+.no-proxy.sh

CMakeLists.txt

@@ -0,0 +1,27 @@
+cmake_minimum_required (VERSION 3.6)
+project(wterm LANGUAGES C)
+
+set(CMAKE_C_STANDARD 23)
+set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
+set(CMAKE_C_FLAGS "-ffunction-sections -fdata-sections")
+if (APPLE)
+elseif (UNIX)
+    set(CMAKE_EXE_LINKER_FLAGS "-Wl,--gc-sections")
+endif()
+
+include_directories(./src/lib/ ./src ${SQLite3_INCLUDE_DIRS})
+
+FILE(GLOB SOURCES src/*.c src/lib/*.c src/file_db/*.c src/config/*.c src/api/*.c src/database/*.c src/security/*.c src/utils/*.c)
+
+option(USE_WERROR "Enable SQLite3 support" OFF)
+
+if(USE_WERROR)
+    add_definitions(-Werror)
+endif()
+
+add_executable(
+    wterm
+    ${SOURCES}
+)
+
+target_link_libraries(wterm pthread)

Makefile

@@ -0,0 +1,36 @@
+CC = gcc
+CFLAGS = -Wall -g -std=gnu2x -ffunction-sections -fdata-sections
+# -DMG_TLS=MG_TLS_OPENSSL
+LDFLAGS =
+INCLUDES = -I./src/lib -I./src
+SRCS = $(wildcard src/lib/*.c src/file_db/*.c src/*.c src/config/*.c src/database/*.c src/api/*.c src/security/*.c src/utils/*.c)
+OBJS = $(SRCS:.c=.o)
+TARGET = wterm
+BUILD_DIR=./build
+CROSS_COMPILE =
+LIBS = -lpthread 
+# -lcrypto -lssl
+USE_SQLITE3 ?= 0
+WERROR ?= 0
+
+ifeq ($(shell uname), Linux)
+	LDFLAGS += -Wl,--gc-sections
+endif
+
+ifeq ($(WERROR), 1)
+	CFLAGS += -Werror
+endif
+
+all: $(TARGET)
+
+$(TARGET): $(OBJS)
+	$(CROSS_COMPILE)$(CC) $(LDFLAGS) $^ -o $@ $(LIBS)
+
+%.o: %.c
+	$(CROSS_COMPILE)$(CC) $(CFLAGS) $(INCLUDES) -c $< -o $@
+
+clean:
+	rm -f $(OBJS) $(TARGET) $(shell find . -type f -name '*.log')
+
+test: $(TARGET)
+	bash ./tests.sh

meson.build

@@ -0,0 +1,30 @@
+project('wterm', 'c', default_options: ['c_std=gnu2x'])
+include_dirs = include_directories('src')
+deps = [dependency('openssl')]
+extra_c_args = ['-ffunction-sections', '-fdata-sections']
+extra_c_link_args = []
+system = host_machine.system()
+if system == 'linux'
+  extra_c_link_args += ['-Wl,--gc-sections']
+endif
+
+use_werror = get_option('use_werror')
+sources = [
+  'src/main.c',
+  'src/mongoose.c',
+  'src/cJSON.c',
+  'src/terminal.c',
+]
+
+if use_werror
+  add_project_arguments('-Werror', language: 'c')
+endif
+
+executable(
+  'wterm',
+  sources,
+  include_directories: include_dirs,
+  dependencies: deps,
+  c_args: extra_c_args,
+  link_args: extra_c_link_args,
+)

meson_options.txt

@@ -0,0 +1 @@
+option('use_werror', type: 'boolean', value: false, description: 'Build with warning as errors')

src/cJSON.h

@@ -0,0 +1,306 @@
+/*
+  Copyright (c) 2009-2017 Dave Gamble and cJSON contributors
+
+  Permission is hereby granted, free of charge, to any person obtaining a copy
+  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.
+*/
+
+#ifndef cJSON__h
+#define cJSON__h
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+#if !defined(__WINDOWS__) && (defined(WIN32) || defined(WIN64) || defined(_MSC_VER) || defined(_WIN32))
+#define __WINDOWS__
+#endif
+
+#ifdef __WINDOWS__
+
+/* When compiling for windows, we specify a specific calling convention to avoid issues where we are being called from a project with a different default calling convention.  For windows you have 3 define options:
+
+CJSON_HIDE_SYMBOLS - Define this in the case where you don't want to ever dllexport symbols
+CJSON_EXPORT_SYMBOLS - Define this on library build when you want to dllexport symbols (default)
+CJSON_IMPORT_SYMBOLS - Define this if you want to dllimport symbol
+
+For *nix builds that support visibility attribute, you can define similar behavior by
+
+setting default visibility to hidden by adding
+-fvisibility=hidden (for gcc)
+or
+-xldscope=hidden (for sun cc)
+to CFLAGS
+
+then using the CJSON_API_VISIBILITY flag to "export" the same symbols the way CJSON_EXPORT_SYMBOLS does
+
+*/
+
+#define CJSON_CDECL __cdecl
+#define CJSON_STDCALL __stdcall
+
+/* export symbols by default, this is necessary for copy pasting the C and header file */
+#if !defined(CJSON_HIDE_SYMBOLS) && !defined(CJSON_IMPORT_SYMBOLS) && !defined(CJSON_EXPORT_SYMBOLS)
+#define CJSON_EXPORT_SYMBOLS
+#endif
+
+#if defined(CJSON_HIDE_SYMBOLS)
+#define CJSON_PUBLIC(type)   type CJSON_STDCALL
+#elif defined(CJSON_EXPORT_SYMBOLS)
+#define CJSON_PUBLIC(type)   __declspec(dllexport) type CJSON_STDCALL
+#elif defined(CJSON_IMPORT_SYMBOLS)
+#define CJSON_PUBLIC(type)   __declspec(dllimport) type CJSON_STDCALL
+#endif
+#else /* !__WINDOWS__ */
+#define CJSON_CDECL
+#define CJSON_STDCALL
+
+#if (defined(__GNUC__) || defined(__SUNPRO_CC) || defined (__SUNPRO_C)) && defined(CJSON_API_VISIBILITY)
+#define CJSON_PUBLIC(type)   __attribute__((visibility("default"))) type
+#else
+#define CJSON_PUBLIC(type) type
+#endif
+#endif
+
+/* project version */
+#define CJSON_VERSION_MAJOR 1
+#define CJSON_VERSION_MINOR 7
+#define CJSON_VERSION_PATCH 18
+
+#include <stddef.h>
+
+/* cJSON Types: */
+#define cJSON_Invalid (0)
+#define cJSON_False  (1 << 0)
+#define cJSON_True   (1 << 1)
+#define cJSON_NULL   (1 << 2)
+#define cJSON_Number (1 << 3)
+#define cJSON_String (1 << 4)
+#define cJSON_Array  (1 << 5)
+#define cJSON_Object (1 << 6)
+#define cJSON_Raw    (1 << 7) /* raw json */
+
+#define cJSON_IsReference 256
+#define cJSON_StringIsConst 512
+
+/* The cJSON structure: */
+typedef struct cJSON
+{
+    /* next/prev allow you to walk array/object chains. Alternatively, use GetArraySize/GetArrayItem/GetObjectItem */
+    struct cJSON *next;
+    struct cJSON *prev;
+    /* An array or object item will have a child pointer pointing to a chain of the items in the array/object. */
+    struct cJSON *child;
+
+    /* The type of the item, as above. */
+    int type;
+
+    /* The item's string, if type==cJSON_String  and type == cJSON_Raw */
+    char *valuestring;
+    /* writing to valueint is DEPRECATED, use cJSON_SetNumberValue instead */
+    int valueint;
+    /* The item's number, if type==cJSON_Number */
+    double valuedouble;
+
+    /* The item's name string, if this item is the child of, or is in the list of subitems of an object. */
+    char *string;
+} cJSON;
+
+typedef struct cJSON_Hooks
+{
+      /* malloc/free are CDECL on Windows regardless of the default calling convention of the compiler, so ensure the hooks allow passing those functions directly. */
+      void *(CJSON_CDECL *malloc_fn)(size_t sz);
+      void (CJSON_CDECL *free_fn)(void *ptr);
+} cJSON_Hooks;
+
+typedef int cJSON_bool;
+
+/* Limits how deeply nested arrays/objects can be before cJSON rejects to parse them.
+ * This is to prevent stack overflows. */
+#ifndef CJSON_NESTING_LIMIT
+#define CJSON_NESTING_LIMIT 1000
+#endif
+
+/* Limits the length of circular references can be before cJSON rejects to parse them.
+ * This is to prevent stack overflows. */
+#ifndef CJSON_CIRCULAR_LIMIT
+#define CJSON_CIRCULAR_LIMIT 10000
+#endif
+
+/* returns the version of cJSON as a string */
+CJSON_PUBLIC(const char*) cJSON_Version(void);
+
+/* Supply malloc, realloc and free functions to cJSON */
+CJSON_PUBLIC(void) cJSON_InitHooks(cJSON_Hooks* hooks);
+
+/* Memory Management: the caller is always responsible to free the results from all variants of cJSON_Parse (with cJSON_Delete) and cJSON_Print (with stdlib free, cJSON_Hooks.free_fn, or cJSON_free as appropriate). The exception is cJSON_PrintPreallocated, where the caller has full responsibility of the buffer. */
+/* Supply a block of JSON, and this returns a cJSON object you can interrogate. */
+CJSON_PUBLIC(cJSON *) cJSON_Parse(const char *value);
+CJSON_PUBLIC(cJSON *) cJSON_ParseWithLength(const char *value, size_t buffer_length);
+/* ParseWithOpts allows you to require (and check) that the JSON is null terminated, and to retrieve the pointer to the final byte parsed. */
+/* If you supply a ptr in return_parse_end and parsing fails, then return_parse_end will contain a pointer to the error so will match cJSON_GetErrorPtr(). */
+CJSON_PUBLIC(cJSON *) cJSON_ParseWithOpts(const char *value, const char **return_parse_end, cJSON_bool require_null_terminated);
+CJSON_PUBLIC(cJSON *) cJSON_ParseWithLengthOpts(const char *value, size_t buffer_length, const char **return_parse_end, cJSON_bool require_null_terminated);
+
+/* Render a cJSON entity to text for transfer/storage. */
+CJSON_PUBLIC(char *) cJSON_Print(const cJSON *item);
+/* Render a cJSON entity to text for transfer/storage without any formatting. */
+CJSON_PUBLIC(char *) cJSON_PrintUnformatted(const cJSON *item);
+/* Render a cJSON entity to text using a buffered strategy. prebuffer is a guess at the final size. guessing well reduces reallocation. fmt=0 gives unformatted, =1 gives formatted */
+CJSON_PUBLIC(char *) cJSON_PrintBuffered(const cJSON *item, int prebuffer, cJSON_bool fmt);
+/* Render a cJSON entity to text using a buffer already allocated in memory with given length. Returns 1 on success and 0 on failure. */
+/* NOTE: cJSON is not always 100% accurate in estimating how much memory it will use, so to be safe allocate 5 bytes more than you actually need */
+CJSON_PUBLIC(cJSON_bool) cJSON_PrintPreallocated(cJSON *item, char *buffer, const int length, const cJSON_bool format);
+/* Delete a cJSON entity and all subentities. */
+CJSON_PUBLIC(void) cJSON_Delete(cJSON *item);
+
+/* Returns the number of items in an array (or object). */
+CJSON_PUBLIC(int) cJSON_GetArraySize(const cJSON *array);
+/* Retrieve item number "index" from array "array". Returns NULL if unsuccessful. */
+CJSON_PUBLIC(cJSON *) cJSON_GetArrayItem(const cJSON *array, int index);
+/* Get item "string" from object. Case insensitive. */
+CJSON_PUBLIC(cJSON *) cJSON_GetObjectItem(const cJSON * const object, const char * const string);
+CJSON_PUBLIC(cJSON *) cJSON_GetObjectItemCaseSensitive(const cJSON * const object, const char * const string);
+CJSON_PUBLIC(cJSON_bool) cJSON_HasObjectItem(const cJSON *object, const char *string);
+/* For analysing failed parses. This returns a pointer to the parse error. You'll probably need to look a few chars back to make sense of it. Defined when cJSON_Parse() returns 0. 0 when cJSON_Parse() succeeds. */
+CJSON_PUBLIC(const char *) cJSON_GetErrorPtr(void);
+
+/* Check item type and return its value */
+CJSON_PUBLIC(char *) cJSON_GetStringValue(const cJSON * const item);
+CJSON_PUBLIC(double) cJSON_GetNumberValue(const cJSON * const item);
+
+/* These functions check the type of an item */
+CJSON_PUBLIC(cJSON_bool) cJSON_IsInvalid(const cJSON * const item);
+CJSON_PUBLIC(cJSON_bool) cJSON_IsFalse(const cJSON * const item);
+CJSON_PUBLIC(cJSON_bool) cJSON_IsTrue(const cJSON * const item);
+CJSON_PUBLIC(cJSON_bool) cJSON_IsBool(const cJSON * const item);
+CJSON_PUBLIC(cJSON_bool) cJSON_IsNull(const cJSON * const item);
+CJSON_PUBLIC(cJSON_bool) cJSON_IsNumber(const cJSON * const item);
+CJSON_PUBLIC(cJSON_bool) cJSON_IsString(const cJSON * const item);
+CJSON_PUBLIC(cJSON_bool) cJSON_IsArray(const cJSON * const item);
+CJSON_PUBLIC(cJSON_bool) cJSON_IsObject(const cJSON * const item);
+CJSON_PUBLIC(cJSON_bool) cJSON_IsRaw(const cJSON * const item);
+
+/* These calls create a cJSON item of the appropriate type. */
+CJSON_PUBLIC(cJSON *) cJSON_CreateNull(void);
+CJSON_PUBLIC(cJSON *) cJSON_CreateTrue(void);
+CJSON_PUBLIC(cJSON *) cJSON_CreateFalse(void);
+CJSON_PUBLIC(cJSON *) cJSON_CreateBool(cJSON_bool boolean);
+CJSON_PUBLIC(cJSON *) cJSON_CreateNumber(double num);
+CJSON_PUBLIC(cJSON *) cJSON_CreateString(const char *string);
+/* raw json */
+CJSON_PUBLIC(cJSON *) cJSON_CreateRaw(const char *raw);
+CJSON_PUBLIC(cJSON *) cJSON_CreateArray(void);
+CJSON_PUBLIC(cJSON *) cJSON_CreateObject(void);
+
+/* Create a string where valuestring references a string so
+ * it will not be freed by cJSON_Delete */
+CJSON_PUBLIC(cJSON *) cJSON_CreateStringReference(const char *string);
+/* Create an object/array that only references it's elements so
+ * they will not be freed by cJSON_Delete */
+CJSON_PUBLIC(cJSON *) cJSON_CreateObjectReference(const cJSON *child);
+CJSON_PUBLIC(cJSON *) cJSON_CreateArrayReference(const cJSON *child);
+
+/* These utilities create an Array of count items.
+ * The parameter count cannot be greater than the number of elements in the number array, otherwise array access will be out of bounds.*/
+CJSON_PUBLIC(cJSON *) cJSON_CreateIntArray(const int *numbers, int count);
+CJSON_PUBLIC(cJSON *) cJSON_CreateFloatArray(const float *numbers, int count);
+CJSON_PUBLIC(cJSON *) cJSON_CreateDoubleArray(const double *numbers, int count);
+CJSON_PUBLIC(cJSON *) cJSON_CreateStringArray(const char *const *strings, int count);
+
+/* Append item to the specified array/object. */
+CJSON_PUBLIC(cJSON_bool) cJSON_AddItemToArray(cJSON *array, cJSON *item);
+CJSON_PUBLIC(cJSON_bool) cJSON_AddItemToObject(cJSON *object, const char *string, cJSON *item);
+/* Use this when string is definitely const (i.e. a literal, or as good as), and will definitely survive the cJSON object.
+ * WARNING: When this function was used, make sure to always check that (item->type & cJSON_StringIsConst) is zero before
+ * writing to `item->string` */
+CJSON_PUBLIC(cJSON_bool) cJSON_AddItemToObjectCS(cJSON *object, const char *string, cJSON *item);
+/* Append reference to item to the specified array/object. Use this when you want to add an existing cJSON to a new cJSON, but don't want to corrupt your existing cJSON. */
+CJSON_PUBLIC(cJSON_bool) cJSON_AddItemReferenceToArray(cJSON *array, cJSON *item);
+CJSON_PUBLIC(cJSON_bool) cJSON_AddItemReferenceToObject(cJSON *object, const char *string, cJSON *item);
+
+/* Remove/Detach items from Arrays/Objects. */
+CJSON_PUBLIC(cJSON *) cJSON_DetachItemViaPointer(cJSON *parent, cJSON * const item);
+CJSON_PUBLIC(cJSON *) cJSON_DetachItemFromArray(cJSON *array, int which);
+CJSON_PUBLIC(void) cJSON_DeleteItemFromArray(cJSON *array, int which);
+CJSON_PUBLIC(cJSON *) cJSON_DetachItemFromObject(cJSON *object, const char *string);
+CJSON_PUBLIC(cJSON *) cJSON_DetachItemFromObjectCaseSensitive(cJSON *object, const char *string);
+CJSON_PUBLIC(void) cJSON_DeleteItemFromObject(cJSON *object, const char *string);
+CJSON_PUBLIC(void) cJSON_DeleteItemFromObjectCaseSensitive(cJSON *object, const char *string);
+
+/* Update array items. */
+CJSON_PUBLIC(cJSON_bool) cJSON_InsertItemInArray(cJSON *array, int which, cJSON *newitem); /* Shifts pre-existing items to the right. */
+CJSON_PUBLIC(cJSON_bool) cJSON_ReplaceItemViaPointer(cJSON * const parent, cJSON * const item, cJSON * replacement);
+CJSON_PUBLIC(cJSON_bool) cJSON_ReplaceItemInArray(cJSON *array, int which, cJSON *newitem);
+CJSON_PUBLIC(cJSON_bool) cJSON_ReplaceItemInObject(cJSON *object,const char *string,cJSON *newitem);
+CJSON_PUBLIC(cJSON_bool) cJSON_ReplaceItemInObjectCaseSensitive(cJSON *object,const char *string,cJSON *newitem);
+
+/* Duplicate a cJSON item */
+CJSON_PUBLIC(cJSON *) cJSON_Duplicate(const cJSON *item, cJSON_bool recurse);
+/* Duplicate will create a new, identical cJSON item to the one you pass, in new memory that will
+ * need to be released. With recurse!=0, it will duplicate any children connected to the item.
+ * The item->next and ->prev pointers are always zero on return from Duplicate. */
+/* Recursively compare two cJSON items for equality. If either a or b is NULL or invalid, they will be considered unequal.
+ * case_sensitive determines if object keys are treated case sensitive (1) or case insensitive (0) */
+CJSON_PUBLIC(cJSON_bool) cJSON_Compare(const cJSON * const a, const cJSON * const b, const cJSON_bool case_sensitive);
+
+/* Minify a strings, remove blank characters(such as ' ', '\t', '\r', '\n') from strings.
+ * The input pointer json cannot point to a read-only address area, such as a string constant, 
+ * but should point to a readable and writable address area. */
+CJSON_PUBLIC(void) cJSON_Minify(char *json);
+
+/* Helper functions for creating and adding items to an object at the same time.
+ * They return the added item or NULL on failure. */
+CJSON_PUBLIC(cJSON*) cJSON_AddNullToObject(cJSON * const object, const char * const name);
+CJSON_PUBLIC(cJSON*) cJSON_AddTrueToObject(cJSON * const object, const char * const name);
+CJSON_PUBLIC(cJSON*) cJSON_AddFalseToObject(cJSON * const object, const char * const name);
+CJSON_PUBLIC(cJSON*) cJSON_AddBoolToObject(cJSON * const object, const char * const name, const cJSON_bool boolean);
+CJSON_PUBLIC(cJSON*) cJSON_AddNumberToObject(cJSON * const object, const char * const name, const double number);
+CJSON_PUBLIC(cJSON*) cJSON_AddStringToObject(cJSON * const object, const char * const name, const char * const string);
+CJSON_PUBLIC(cJSON*) cJSON_AddRawToObject(cJSON * const object, const char * const name, const char * const raw);
+CJSON_PUBLIC(cJSON*) cJSON_AddObjectToObject(cJSON * const object, const char * const name);
+CJSON_PUBLIC(cJSON*) cJSON_AddArrayToObject(cJSON * const object, const char * const name);
+
+/* When assigning an integer value, it needs to be propagated to valuedouble too. */
+#define cJSON_SetIntValue(object, number) ((object) ? (object)->valueint = (object)->valuedouble = (number) : (number))
+/* helper for the cJSON_SetNumberValue macro */
+CJSON_PUBLIC(double) cJSON_SetNumberHelper(cJSON *object, double number);
+#define cJSON_SetNumberValue(object, number) ((object != NULL) ? cJSON_SetNumberHelper(object, (double)number) : (number))
+/* Change the valuestring of a cJSON_String object, only takes effect when type of object is cJSON_String */
+CJSON_PUBLIC(char*) cJSON_SetValuestring(cJSON *object, const char *valuestring);
+
+/* If the object is not a boolean type this does nothing and returns cJSON_Invalid else it returns the new type*/
+#define cJSON_SetBoolValue(object, boolValue) ( \
+    (object != NULL && ((object)->type & (cJSON_False|cJSON_True))) ? \
+    (object)->type=((object)->type &(~(cJSON_False|cJSON_True)))|((boolValue)?cJSON_True:cJSON_False) : \
+    cJSON_Invalid\
+)
+
+/* Macro for iterating over an array or object */
+#define cJSON_ArrayForEach(element, array) for(element = (array != NULL) ? (array)->child : NULL; element != NULL; element = element->next)
+
+/* malloc/free objects using the malloc/free functions that have been set with cJSON_InitHooks */
+CJSON_PUBLIC(void *) cJSON_malloc(size_t size);
+CJSON_PUBLIC(void) cJSON_free(void *object);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif

src/main.c

@@ -0,0 +1,299 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <signal.h>
+#include <sys/wait.h>
+#include <sys/stat.h>
+#include <errno.h>
+#include <mongoose.h>
+#include <cjson/cJSON.h>
+#include "terminal.h"
+
+#define HTTP_PORT "8888"
+#define STATIC_DIR "./static/"
+
+static const char *s_http_addr = "http://0.0.0.0:8888";
+static struct mg_mgr mgr;
+
+struct client_data {
+    struct terminal_session term;
+    bool terminal_ready;
+};
+
+// Функция для логирования запросов
+static void log_request(struct mg_connection *c, struct mg_http_message *hm) {
+    printf("HTTP Request: %.*s %.*s\n", (int)hm->method.len, hm->method.buf, 
+           (int)hm->uri.len, hm->uri.buf);
+}
+
+// Проверяем, жив ли дочерний процесс
+static bool is_process_alive(pid_t pid) {
+    if (pid <= 0) return false;
+    
+    int status;
+    pid_t result = waitpid(pid, &status, WNOHANG);
+    if (result == 0) {
+        // Процесс все еще работает
+        return true;
+    } else if (result == -1) {
+        // Ошибка
+        if (errno == ECHILD) {
+            // Процесс не существует
+            return false;
+        }
+        perror("waitpid");
+        return false;
+    } else {
+        // Процесс завершился
+        return false;
+    }
+}
+
+// Перезапускаем терминальную сессию
+static void restart_terminal_session(struct mg_connection *c, struct client_data *cd) {
+    if (!cd) return;
+    
+    printf("Restarting terminal session...\n");
+    
+    // Уничтожаем старую сессию
+    if (cd->terminal_ready) {
+        destroy_terminal_session(&cd->term);
+    }
+    
+    // Создаем новую сессию
+    const char *shell = getenv("SHELL");
+    if (!shell) shell = "/bin/bash";
+    
+    if (create_terminal_session(&cd->term, shell) == 0) {
+        cd->terminal_ready = true;
+        mg_ws_send(c, "\r\n*** Terminal restarted ***\r\n", 29, WEBSOCKET_OP_TEXT);
+    } else {
+        mg_ws_send(c, "\r\n*** Failed to restart terminal ***\r\n", 37, WEBSOCKET_OP_TEXT);
+        cd->terminal_ready = false;
+    }
+}
+
+// Обработчик WebSocket сообщений
+static void handle_websocket_message(struct mg_connection *c, struct mg_ws_message *wm, struct client_data *cd) {
+    if (!cd) return;
+    
+    if (wm->data.len == 0) {
+        return;
+    }
+    
+    // Парсим JSON для проверки resize сообщения
+    cJSON *json = cJSON_ParseWithLength(wm->data.buf, wm->data.len);
+    if (json != NULL) {
+        cJSON *cols = cJSON_GetObjectItemCaseSensitive(json, "cols");
+        cJSON *rows = cJSON_GetObjectItemCaseSensitive(json, "rows");
+        
+        if (cJSON_IsNumber(cols) && cJSON_IsNumber(rows)) {
+            printf("Resizing terminal to %dx%d\n", rows->valueint, cols->valueint);
+            resize_terminal(&cd->term, rows->valueint, cols->valueint);
+            cJSON_Delete(json);
+            return;
+        }
+        cJSON_Delete(json);
+    }
+    
+    // Проверяем, не команда ли это exit
+    if (wm->data.len >= 4 && strncmp(wm->data.buf, "exit", 4) == 0) {
+        printf("Exit command detected, restarting terminal session\n");
+        write_to_terminal(&cd->term, wm->data.buf, wm->data.len);
+        // Даем команде выполниться, затем перезапускаем
+        usleep(100);
+        restart_terminal_session(c, cd);
+        return;
+    }
+    
+    // Обычный ввод от пользователя
+    write_to_terminal(&cd->term, wm->data.buf, wm->data.len);
+}
+
+// Обработчик HTTP запросов
+static void fn(struct mg_connection *c, int ev, void *ev_data) {
+    if (ev == MG_EV_HTTP_MSG) {
+        struct mg_http_message *hm = (struct mg_http_message *)ev_data;
+        log_request(c, hm);
+        
+        if (mg_match(hm->uri, mg_str("/ws"), nullptr)) {
+            // Проверяем, нет ли уже активного соединения
+            if (c->fn_data != NULL) {
+                printf("WebSocket connection already exists for this connection, cleaning up...\n");
+                struct client_data *old_cd = (struct client_data *)c->fn_data;
+                destroy_terminal_session(&old_cd->term);
+                free(old_cd);
+                c->fn_data = NULL;
+            }
+            
+            // Upgrade до WebSocket
+            struct client_data *cd = calloc(1, sizeof(struct client_data));
+            if (!cd) {
+                mg_http_reply(c, 500, "Content-Type: text/plain\r\n", "Memory allocation failed");
+                return;
+            }
+            
+            // Создаем терминальную сессию
+            const char *shell = getenv("SHELL");
+            if (!shell) shell = "/bin/bash";
+            
+            printf("Creating new terminal session with shell: %s\n", shell);
+            if (create_terminal_session(&cd->term, shell) != 0) {
+                mg_http_reply(c, 500, "Content-Type: text/plain\r\n", "Failed to create terminal session");
+                free(cd);
+                return;
+            }
+            
+            cd->terminal_ready = true;
+            c->fn_data = cd;
+            
+            // Upgrade to WebSocket
+            struct mg_str *ws_proto = mg_http_get_header(hm, "Sec-WebSocket-Protocol");
+            if (ws_proto != NULL) {
+                mg_ws_upgrade(c, hm, ws_proto->buf);
+            } else {
+                mg_ws_upgrade(c, hm, NULL);
+            }
+            
+            printf("WebSocket upgrade completed\n");
+            
+        } else if (mg_match(hm->uri, mg_str("/"), nullptr)) {
+            // Главная страница
+            struct mg_http_serve_opts opts = { .root_dir = STATIC_DIR };
+            mg_http_serve_file(c, hm, "./static/index.html", &opts);
+            
+        } else if (mg_match(hm->uri, mg_str("/xterm.js"), nullptr)) {
+            // xterm.js
+            struct mg_http_serve_opts opts = { .root_dir = STATIC_DIR };
+            mg_http_serve_file(c, hm, "./static/xterm.js", &opts);
+            
+        } else if (mg_match(hm->uri, mg_str("/xterm.css"), nullptr)) {
+            // xterm.css
+            struct mg_http_serve_opts opts = { .root_dir = STATIC_DIR };
+            mg_http_serve_file(c, hm, "./static/xterm.css", &opts);
+            
+        } else if (mg_match(hm->uri, mg_str("/xterm-addon-fit.js"), nullptr)) {
+            // xterm-addon-fit.js
+            struct mg_http_serve_opts opts = { .root_dir = STATIC_DIR };
+            mg_http_serve_file(c, hm, "./static/xterm-addon-fit.js", &opts);
+            
+        } else {
+            mg_http_reply(c, 404, "Content-Type: text/plain\r\n", "Not Found");
+        }
+    } else if (ev == MG_EV_WS_OPEN) {
+        // WebSocket соединение установлено
+        printf("WebSocket connection opened\n");
+        struct client_data *cd = (struct client_data *)c->fn_data;
+        if (cd) {
+            mg_ws_send(c, "Terminal ready - type 'exit' to restart session\r\n", 49, WEBSOCKET_OP_TEXT);
+        }
+    } else if (ev == MG_EV_WS_MSG) {
+        // Сообщение от WebSocket клиента
+        struct mg_ws_message *wm = (struct mg_ws_message *)ev_data;
+        struct client_data *cd = (struct client_data *)c->fn_data;
+        handle_websocket_message(c, wm, cd);
+    } else if (ev == MG_EV_CLOSE) {
+        // Закрытие соединения
+        struct client_data *cd = (struct client_data *)c->fn_data;
+        if (cd) {
+            printf("WebSocket connection closed, cleaning up...\n");
+            destroy_terminal_session(&cd->term);
+            free(cd);
+            c->fn_data = NULL;
+        }
+    } else if (ev == MG_EV_POLL) {
+        // Проверяем данные от терминала и отправляем через WebSocket
+        struct mg_connection *conn;
+        for (conn = mgr.conns; conn != NULL; conn = conn->next) {
+            if (!conn->is_websocket) continue;
+            
+            struct client_data *cd = (struct client_data *)conn->fn_data;
+            if (cd && cd->terminal_ready) {
+                // Проверяем, не завершился ли процесс
+                if (!is_process_alive(cd->term.child_pid)) {
+                    printf("Terminal process died, restarting...\n");
+                    restart_terminal_session(conn, cd);
+                    continue;
+                }
+                
+                // Читаем данные из терминала
+                char buffer[1024];
+                ssize_t bytes_read = read_from_terminal(&cd->term, buffer, sizeof(buffer));
+                if (bytes_read > 0) {
+                    mg_ws_send(conn, buffer, bytes_read, WEBSOCKET_OP_BINARY);
+                } else if (bytes_read == 0) {
+                    // EOF - процесс завершился
+                    printf("EOF from terminal, restarting...\n");
+                    restart_terminal_session(conn, cd);
+                } else if (bytes_read < 0 && errno != EAGAIN && errno != EWOULDBLOCK) {
+                    // Ошибка чтения
+                    printf("Error reading from terminal: %s\n", strerror(errno));
+                    restart_terminal_session(conn, cd);
+                }
+            }
+        }
+    }
+}
+
+// Обработчик сигналов для graceful shutdown
+static void signal_handler(int sig) {
+    printf("\nShutting down server...\n");
+    
+    // Очищаем все соединения
+    struct mg_connection *conn;
+    for (conn = mgr.conns; conn != NULL; conn = conn->next) {
+        if (conn->fn_data) {
+            struct client_data *cd = (struct client_data *)conn->fn_data;
+            destroy_terminal_session(&cd->term);
+            free(cd);
+            conn->fn_data = NULL;
+        }
+    }
+    
+    mg_mgr_free(&mgr);
+    exit(0);
+}
+
+// Проверяем существование директории
+static bool directory_exists(const char *path) {
+    struct stat st;
+    return stat(path, &st) == 0 && S_ISDIR(st.st_mode);
+}
+
+int main(void) {
+    // Устанавливаем обработчики сигналов
+    signal(SIGINT, signal_handler);
+    signal(SIGTERM, signal_handler);
+    
+    // Инициализируем менеджер соединений
+    mg_mgr_init(&mgr);
+    printf("Mongoose version: %s\n", MG_VERSION);
+    
+    // Проверяем существование статической директории
+    if (!directory_exists(STATIC_DIR)) {
+        fprintf(stderr, "Static directory '%s' not found! Creating it...\n", STATIC_DIR);
+        if (mkdir(STATIC_DIR, 0755) != 0) {
+            fprintf(stderr, "Failed to create static directory\n");
+            return 1;
+        }
+    }
+    
+    // Создаем HTTP сервер
+    struct mg_connection *c = mg_http_listen(&mgr, s_http_addr, fn, NULL);
+    if (c == NULL) {
+        fprintf(stderr, "Failed to start server on %s\n", s_http_addr);
+        return 1;
+    }
+    
+    printf("Starting web terminal server on %s\n", s_http_addr);
+    printf("Static files directory: %s\n", STATIC_DIR);
+    printf("Server is ready. Open http://localhost:8000 in your browser\n");
+    
+    // Основной цикл
+    while (true) {
+        mg_mgr_poll(&mgr, 50); // 50ms timeout
+    }
+    
+    mg_mgr_free(&mgr);
+    return 0;
+}

src/terminal.c

@@ -0,0 +1,158 @@
+#include "terminal.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <sys/wait.h>
+#include <pty.h>
+#include <utmp.h>
+#include <signal.h>
+#include <errno.h>
+
+int create_terminal_session(struct terminal_session *session, const char *shell) {
+    // Создаем pty
+    int master, slave;
+    char slave_name[64];
+    
+    if (openpty(&master, &slave, slave_name, NULL, NULL) == -1) {
+        perror("openpty failed");
+        return -1;
+    }
+    
+    pid_t pid = fork();
+    if (pid == -1) {
+        perror("fork failed");
+        close(master);
+        close(slave);
+        return -1;
+    }
+    
+    if (pid == 0) {
+        // Дочерний процесс
+        close(master);
+        
+        // Устанавливаем pty как контролирующий терминал
+        setsid();
+        ioctl(slave, TIOCSCTTY, 1);
+        
+        // Перенаправляем стандартные потоки
+        dup2(slave, STDIN_FILENO);
+        dup2(slave, STDOUT_FILENO);
+        dup2(slave, STDERR_FILENO);
+        
+        if (slave > STDERR_FILENO) {
+            close(slave);
+        }
+        
+        // Устанавливаем переменные окружения
+        setenv("TERM", "xterm-256color", 1);
+        setenv("COLORTERM", "truecolor", 1);
+        
+        // Запускаем shell
+        execlp(shell, shell, NULL);
+        
+        // Если execlp вернулся, значит произошла ошибка
+        perror("execlp failed");
+        exit(EXIT_FAILURE);
+    }
+    
+    // Родительский процесс
+    close(slave);
+    
+    session->master_pty = master;
+    session->slave_pty = slave;
+    session->child_pid = pid;
+    session->active = true;
+    
+    // Устанавливаем неблокирующий режим
+    int flags = fcntl(master, F_GETFL, 0);
+    fcntl(master, F_SETFL, flags | O_NONBLOCK);
+    
+    printf("Created terminal session with PID %d\n", pid);
+    return 0;
+}
+
+void destroy_terminal_session(struct terminal_session *session) {
+    if (!session || !session->active) {
+        return;
+    }
+    
+    printf("Destroying terminal session with PID %d\n", session->child_pid);
+    
+    // Завершаем дочерний процесс
+    if (session->child_pid > 0) {
+        // Отправляем SIGKILL
+        int status;
+        kill(session->child_pid, SIGKILL);
+        waitpid(session->child_pid, &status, 0);
+    }
+    
+    // Закрываем pty
+    if (session->master_pty != -1) {
+        close(session->master_pty);
+        session->master_pty = -1;
+    }
+    
+    session->active = false;
+    session->child_pid = 0;
+    printf("Terminal session destroyed\n");
+}
+
+ssize_t read_from_terminal(struct terminal_session *session, char *buffer, size_t size) {
+    if (!session || !session->active) {
+        return -1;
+    }
+    
+    ssize_t bytes_read = read(session->master_pty, buffer, size - 1);
+    if (bytes_read > 0) {
+        buffer[bytes_read] = '\0';
+    } else if (bytes_read == 0) {
+        // EOF - соединение закрыто
+        return 0;
+    } else if (bytes_read < 0) {
+        if (errno != EAGAIN && errno != EWOULDBLOCK) {
+            perror("read from terminal failed");
+            return -1;
+        }
+        // Нет данных для чтения - это нормально в неблокирующем режиме
+        return -2;
+    }
+    
+    return bytes_read;
+}
+
+ssize_t write_to_terminal(struct terminal_session *session, const char *data, size_t size) {
+    if (!session || !session->active) {
+        return -1;
+    }
+    
+    ssize_t bytes_written = write(session->master_pty, data, size);
+    if (bytes_written < 0 && errno != EAGAIN && errno != EWOULDBLOCK) {
+        perror("write to terminal failed");
+        return -1;
+    }
+    
+    return bytes_written;
+}
+
+int resize_terminal(struct terminal_session *session, uint16_t rows, uint16_t cols) {
+    if (!session || !session->active) {
+        return -1;
+    }
+    
+    struct winsize ws = {
+        .ws_row = rows,
+        .ws_col = cols,
+        .ws_xpixel = 0,
+        .ws_ypixel = 0
+    };
+    
+    if (ioctl(session->master_pty, TIOCSWINSZ, &ws) == -1) {
+        perror("ioctl TIOCSWINSZ failed");
+        return -1;
+    }
+    
+    return 0;
+}

src/terminal.h

@@ -0,0 +1,25 @@
+#ifndef TERMINAL_H
+#define TERMINAL_H
+
+#include <stddef.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <signal.h>
+#include <sys/ioctl.h>
+#include <sys/types.h>
+
+struct terminal_session {
+    int master_pty;
+    int slave_pty;
+    pid_t child_pid;
+    bool active;
+};
+
+// Функции для работы с терминалом
+int create_terminal_session(struct terminal_session *session, const char *shell);
+void destroy_terminal_session(struct terminal_session *session);
+ssize_t read_from_terminal(struct terminal_session *session, char *buffer, size_t size);
+ssize_t write_to_terminal(struct terminal_session *session, const char *data, size_t size);
+int resize_terminal(struct terminal_session *session, uint16_t rows, uint16_t cols);
+
+#endif

static/index.html

@@ -0,0 +1,176 @@
+<!DOCTYPE html>
+<html>
+<head>
+    <title>Web Terminal</title>
+    <link rel="stylesheet" href="xterm.css">
+    <style>
+        body {
+            margin: 0;
+            padding: 20px;
+            background-color: #1e1e1e;
+            color: #fff;
+            font-family: Arial, sans-serif;
+            height: 100vh;
+            display: flex;
+            flex-direction: column;
+        }
+        
+        #terminal-container {
+            flex: 1;
+            border: 1px solid #333;
+            border-radius: 5px;
+            overflow: hidden;
+            margin-top: 10px;
+        }
+        
+        .status {
+            padding: 10px;
+            border-radius: 3px;
+            font-weight: bold;
+            margin-bottom: 10px;
+        }
+        
+        .connected { background-color: #2d5a2d; }
+        .disconnected { background-color: #5a2d2d; }
+        .connecting { background-color: #5a5a2d; }
+    </style>
+</head>
+<body>
+    <h1>Web Terminal</h1>
+    <div class="status connecting" id="status">Connecting...</div>
+    <div id="terminal-container"></div>
+
+    <script src="xterm.js"></script>
+    <script src="xterm-addon-fit.js"></script>
+    <script>
+        class WebTerminal {
+            constructor() {
+                this.terminal = new Terminal({
+                    cursorBlink: true,
+                    theme: {
+                        background: '#000000',
+                        foreground: '#ffffff',
+                        cursor: '#ffffff'
+                    }
+                });
+                
+                this.fitAddon = new FitAddon.FitAddon();
+                this.terminal.loadAddon(this.fitAddon);
+                
+                this.ws = null;
+                this.reconnectAttempts = 0;
+                this.maxReconnectAttempts = 5;
+                this.reconnectDelay = 3000;
+                
+                this.init();
+            }
+            
+            init() {
+                const terminalContainer = document.getElementById('terminal-container');
+                this.terminal.open(terminalContainer);
+                this.fitAddon.fit();
+                
+                this.terminal.writeln('Welcome to Web Terminal');
+                this.terminal.writeln('Connecting to server...');
+                
+                this.connect();
+                
+                // Handle terminal input
+                this.terminal.onData((data) => {
+                    if (this.ws && this.ws.readyState === WebSocket.OPEN) {
+                        this.ws.send(data);
+                    }
+                });
+                
+                // Handle resize
+                window.addEventListener('resize', () => {
+                    this.fitAddon.fit();
+                    this.sendResize();
+                });
+                
+                // Handle page unload
+                window.addEventListener('beforeunload', () => {
+                    if (this.ws) {
+                        this.ws.close();
+                    }
+                });
+            }
+            
+            connect() {
+                this.updateStatus('Connecting...', 'connecting');
+                
+                const protocol = window.location.protocol === 'https:' ? 'wss:' : 'ws:';
+                const wsUrl = `${protocol}//${window.location.host}/ws`;
+                
+                this.ws = new WebSocket(wsUrl);
+                
+                this.ws.onopen = () => {
+                    console.log('WebSocket connected');
+                    this.reconnectAttempts = 0;
+                    this.updateStatus('Connected', 'connected');
+                    this.terminal.clear();
+                    this.sendResize();
+                };
+                
+                this.ws.onmessage = (event) => {
+                    if (typeof event.data === 'string') {
+                        this.terminal.write(event.data);
+                    } else {
+                        // Handle binary data
+                        const reader = new FileReader();
+                        reader.onload = () => {
+                            const data = new Uint8Array(reader.result);
+                            this.terminal.write(data);
+                        };
+                        reader.readAsArrayBuffer(event.data);
+                    }
+                };
+                
+                this.ws.onclose = (event) => {
+                    console.log('WebSocket disconnected:', event.code, event.reason);
+                    this.updateStatus('Disconnected', 'disconnected');
+                    
+                    if (this.reconnectAttempts < this.maxReconnectAttempts) {
+                        this.reconnectAttempts++;
+                        const delay = this.reconnectDelay * this.reconnectAttempts;
+                        this.terminal.write(`\r\nConnection lost. Reconnecting in ${delay/1000}s...\r\n`);
+                        
+                        setTimeout(() => {
+                            this.connect();
+                        }, delay);
+                    } else {
+                        this.terminal.write('\r\nFailed to reconnect. Please refresh the page.\r\n');
+                    }
+                };
+                
+                this.ws.onerror = (error) => {
+                    console.error('WebSocket error:', error);
+                    this.updateStatus('Connection Error', 'disconnected');
+                };
+            }
+            
+            sendResize() {
+                if (this.ws && this.ws.readyState === WebSocket.OPEN) {
+                    const dimensions = this.terminal;
+                    const resizeMsg = {
+                        cols: dimensions.cols,
+                        rows: dimensions.rows
+                    };
+                    this.ws.send(JSON.stringify(resizeMsg));
+                }
+            }
+            
+            updateStatus(text, className) {
+                const status = document.getElementById('status');
+                status.textContent = text;
+                status.className = `status ${className}`;
+            }
+        }
+        
+        // Initialize terminal when page loads
+        document.addEventListener('DOMContentLoaded', () => {
+            new WebTerminal();
+        });
+    </script>
+</body>
+</html>

static/xterm-addon-fit.js

@@ -0,0 +1,2 @@
+!function(e,t){"object"==typeof exports&&"object"==typeof module?module.exports=t():"function"==typeof define&&define.amd?define([],t):"object"==typeof exports?exports.FitAddon=t():e.FitAddon=t()}(self,(()=>(()=>{"use strict";var e={};return(()=>{var t=e;Object.defineProperty(t,"__esModule",{value:!0}),t.FitAddon=void 0,t.FitAddon=class{activate(e){this._terminal=e}dispose(){}fit(){const e=this.proposeDimensions();if(!e||!this._terminal||isNaN(e.cols)||isNaN(e.rows))return;const t=this._terminal._core;this._terminal.rows===e.rows&&this._terminal.cols===e.cols||(t._renderService.clear(),this._terminal.resize(e.cols,e.rows))}proposeDimensions(){if(!this._terminal)return;if(!this._terminal.element||!this._terminal.element.parentElement)return;const e=this._terminal._core,t=e._renderService.dimensions;if(0===t.css.cell.width||0===t.css.cell.height)return;const r=0===this._terminal.options.scrollback?0:e.viewport.scrollBarWidth,i=window.getComputedStyle(this._terminal.element.parentElement),o=parseInt(i.getPropertyValue("height")),s=Math.max(0,parseInt(i.getPropertyValue("width"))),n=window.getComputedStyle(this._terminal.element),l=o-(parseInt(n.getPropertyValue("padding-top"))+parseInt(n.getPropertyValue("padding-bottom"))),a=s-(parseInt(n.getPropertyValue("padding-right"))+parseInt(n.getPropertyValue("padding-left")))-r;return{cols:Math.max(2,Math.floor(a/t.css.cell.width)),rows:Math.max(1,Math.floor(l/t.css.cell.height))}}}})(),e})()));
+//# sourceMappingURL=xterm-addon-fit.js.map

static/xterm.css

@@ -0,0 +1,209 @@
+/**
+ * Copyright (c) 2014 The xterm.js authors. All rights reserved.
+ * Copyright (c) 2012-2013, Christopher Jeffrey (MIT License)
+ * https://github.com/chjj/term.js
+ * @license MIT
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * 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.
+ *
+ * Originally forked from (with the author's permission):
+ *   Fabrice Bellard's javascript vt100 for jslinux:
+ *   http://bellard.org/jslinux/
+ *   Copyright (c) 2011 Fabrice Bellard
+ *   The original design remains. The terminal itself
+ *   has been extended to include xterm CSI codes, among
+ *   other features.
+ */
+
+/**
+ *  Default styles for xterm.js
+ */
+
+.xterm {
+    cursor: text;
+    position: relative;
+    user-select: none;
+    -ms-user-select: none;
+    -webkit-user-select: none;
+}
+
+.xterm.focus,
+.xterm:focus {
+    outline: none;
+}
+
+.xterm .xterm-helpers {
+    position: absolute;
+    top: 0;
+    /**
+     * The z-index of the helpers must be higher than the canvases in order for
+     * IMEs to appear on top.
+     */
+    z-index: 5;
+}
+
+.xterm .xterm-helper-textarea {
+    padding: 0;
+    border: 0;
+    margin: 0;
+    /* Move textarea out of the screen to the far left, so that the cursor is not visible */
+    position: absolute;
+    opacity: 0;
+    left: -9999em;
+    top: 0;
+    width: 0;
+    height: 0;
+    z-index: -5;
+    /** Prevent wrapping so the IME appears against the textarea at the correct position */
+    white-space: nowrap;
+    overflow: hidden;
+    resize: none;
+}
+
+.xterm .composition-view {
+    /* TODO: Composition position got messed up somewhere */
+    background: #000;
+    color: #FFF;
+    display: none;
+    position: absolute;
+    white-space: nowrap;
+    z-index: 1;
+}
+
+.xterm .composition-view.active {
+    display: block;
+}
+
+.xterm .xterm-viewport {
+    /* On OS X this is required in order for the scroll bar to appear fully opaque */
+    background-color: #000;
+    overflow-y: scroll;
+    cursor: default;
+    position: absolute;
+    right: 0;
+    left: 0;
+    top: 0;
+    bottom: 0;
+}
+
+.xterm .xterm-screen {
+    position: relative;
+}
+
+.xterm .xterm-screen canvas {
+    position: absolute;
+    left: 0;
+    top: 0;
+}
+
+.xterm .xterm-scroll-area {
+    visibility: hidden;
+}
+
+.xterm-char-measure-element {
+    display: inline-block;
+    visibility: hidden;
+    position: absolute;
+    top: 0;
+    left: -9999em;
+    line-height: normal;
+}
+
+.xterm.enable-mouse-events {
+    /* When mouse events are enabled (eg. tmux), revert to the standard pointer cursor */
+    cursor: default;
+}
+
+.xterm.xterm-cursor-pointer,
+.xterm .xterm-cursor-pointer {
+    cursor: pointer;
+}
+
+.xterm.column-select.focus {
+    /* Column selection mode */
+    cursor: crosshair;
+}
+
+.xterm .xterm-accessibility,
+.xterm .xterm-message {
+    position: absolute;
+    left: 0;
+    top: 0;
+    bottom: 0;
+    right: 0;
+    z-index: 10;
+    color: transparent;
+    pointer-events: none;
+}
+
+.xterm .live-region {
+    position: absolute;
+    left: -9999px;
+    width: 1px;
+    height: 1px;
+    overflow: hidden;
+}
+
+.xterm-dim {
+    /* Dim should not apply to background, so the opacity of the foreground color is applied
+     * explicitly in the generated class and reset to 1 here */
+    opacity: 1 !important;
+}
+
+.xterm-underline-1 { text-decoration: underline; }
+.xterm-underline-2 { text-decoration: double underline; }
+.xterm-underline-3 { text-decoration: wavy underline; }
+.xterm-underline-4 { text-decoration: dotted underline; }
+.xterm-underline-5 { text-decoration: dashed underline; }
+
+.xterm-overline {
+    text-decoration: overline;
+}
+
+.xterm-overline.xterm-underline-1 { text-decoration: overline underline; }
+.xterm-overline.xterm-underline-2 { text-decoration: overline double underline; }
+.xterm-overline.xterm-underline-3 { text-decoration: overline wavy underline; }
+.xterm-overline.xterm-underline-4 { text-decoration: overline dotted underline; }
+.xterm-overline.xterm-underline-5 { text-decoration: overline dashed underline; }
+
+.xterm-strikethrough {
+    text-decoration: line-through;
+}
+
+.xterm-screen .xterm-decoration-container .xterm-decoration {
+	z-index: 6;
+	position: absolute;
+}
+
+.xterm-screen .xterm-decoration-container .xterm-decoration.xterm-decoration-top-layer {
+	z-index: 7;
+}
+
+.xterm-decoration-overview-ruler {
+    z-index: 8;
+    position: absolute;
+    top: 0;
+    right: 0;
+    pointer-events: none;
+}
+
+.xterm-decoration-top {
+    z-index: 2;
+    position: relative;
+}

static/xterm.js

@@ -0,0 +1,2 @@
+!function(e,t){if("object"==typeof exports&&"object"==typeof module)module.exports=t();else if("function"==typeof define&&define.amd)define([],t);else{var i=t();for(var s in i)("object"==typeof exports?exports:e)[s]=i[s]}}(self,(()=>(()=>{"use strict";var e={4567:function(e,t,i){var s=this&&this.__decorate||function(e,t,i,s){var r,n=arguments.length,o=n<3?t:null===s?s=Object.getOwnPropertyDescriptor(t,i):s;if("object"==typeof Reflect&&"function"==typeof Reflect.decorate)o=Reflect.decorate(e,t,i,s);else for(var a=e.length-1;a>=0;a--)(r=e[a])&&(o=(n<3?r(o):n>3?r(t,i,o):r(t,i))||o);return n>3&&o&&Object.defineProperty(t,i,o),o},r=this&&this.__param||function(e,t){return function(i,s){t(i,s,e)}};Object.defineProperty(t,"__esModule",{value:!0}),t.AccessibilityManager=void 0;const n=i(9042),o=i(6114),a=i(9924),h=i(844),c=i(5596),l=i(4725),d=i(3656);let _=t.AccessibilityManager=class extends h.Disposable{constructor(e,t){super(),this._terminal=e,this._renderService=t,this._liveRegionLineCount=0,this._charsToConsume=[],this._charsToAnnounce="",this._accessibilityContainer=document.createElement("div"),this._accessibilityContainer.classList.add("xterm-accessibility"),this._rowContainer=document.createElement("div"),this._rowContainer.setAttribute("role","list"),this._rowContainer.classList.add("xterm-accessibility-tree"),this._rowElements=[];for(let e=0;e<this._terminal.rows;e++)this._rowElements[e]=this._createAccessibilityTreeNode(),this._rowContainer.appendChild(this._rowElements[e]);if(this._topBoundaryFocusListener=e=>this._handleBoundaryFocus(e,0),this._bottomBoundaryFocusListener=e=>this._handleBoundaryFocus(e,1),this._rowElements[0].addEventListener("focus",this._topBoundaryFocusListener),this._rowElements[this._rowElements.length-1].addEventListener("focus",this._bottomBoundaryFocusListener),this._refreshRowsDimensions(),this._accessibilityContainer.appendChild(this._rowContainer),this._liveRegion=document.createElement("div"),this._liveRegion.classList.add("live-region"),this._liveRegion.setAttribute("aria-live","assertive"),this._accessibilityContainer.appendChild(this._liveRegion),this._liveRegionDebouncer=this.register(new a.TimeBasedDebouncer(this._renderRows.bind(this))),!this._terminal.element)throw new Error("Cannot enable accessibility before Terminal.open");this._terminal.element.insertAdjacentElement("afterbegin",this._accessibilityContainer),this.register(this._terminal.onResize((e=>this._handleResize(e.rows)))),this.register(this._terminal.onRender((e=>this._refreshRows(e.start,e.end)))),this.register(this._terminal.onScroll((()=>this._refreshRows()))),this.register(this._terminal.onA11yChar((e=>this._handleChar(e)))),this.register(this._terminal.onLineFeed((()=>this._handleChar("\n")))),this.register(this._terminal.onA11yTab((e=>this._handleTab(e)))),this.register(this._terminal.onKey((e=>this._handleKey(e.key)))),this.register(this._terminal.onBlur((()=>this._clearLiveRegion()))),this.register(this._renderService.onDimensionsChange((()=>this._refreshRowsDimensions()))),this._screenDprMonitor=new c.ScreenDprMonitor(window),this.register(this._screenDprMonitor),this._screenDprMonitor.setListener((()=>this._refreshRowsDimensions())),this.register((0,d.addDisposableDomListener)(window,"resize",(()=>this._refreshRowsDimensions()))),this._refreshRows(),this.register((0,h.toDisposable)((()=>{this._accessibilityContainer.remove(),this._rowElements.length=0})))}_handleTab(e){for(let t=0;t<e;t++)this._handleChar(" ")}_handleChar(e){this._liveRegionLineCount<21&&(this._charsToConsume.length>0?this._charsToConsume.shift()!==e&&(this._charsToAnnounce+=e):this._charsToAnnounce+=e,"\n"===e&&(this._liveRegionLineCount++,21===this._liveRegionLineCount&&(this._liveRegion.textContent+=n.tooMuchOutput)),o.isMac&&this._liveRegion.textContent&&this._liveRegion.textContent.length>0&&!this._liveRegion.parentNode&&setTimeout((()=>{this._accessibilityContainer.appendChild(this._liveRegion)}),0))}_clearLiveRegion(){this._liveRegion.textContent="",this._liveRegionLineCount=0,o.isMac&&this._liveRegion.remove()}_handleKey(e){this._clearLiveRegion(),/\p{Control}/u.test(e)||this._charsToConsume.push(e)}_refreshRows(e,t){this._liveRegionDebouncer.refresh(e,t,this._terminal.rows)}_renderRows(e,t){const i=this._terminal.buffer,s=i.lines.length.toString();for(let r=e;r<=t;r++){const e=i.translateBufferLineToString(i.ydisp+r,!0),t=(i.ydisp+r+1).toString(),n=this._rowElements[r];n&&(0===e.length?n.innerText=" ":n.textContent=e,n.setAttribute("aria-posinset",t),n.setAttribute("aria-setsize",s))}this._announceCharacters()}_announceCharacters(){0!==this._charsToAnnounce.length&&(this._liveRegion.textContent+=this._charsToAnnounce,this._charsToAnnounce="")}_handleBoundaryFocus(e,t){const i=e.target,s=this._rowElements[0===t?1:this._rowElements.length-2];if(i.getAttribute("aria-posinset")===(0===t?"1":`${this._terminal.buffer.lines.length}`))return;if(e.relatedTarget!==s)return;let r,n;if(0===t?(r=i,n=this._rowElements.pop(),this._rLine truncated
+//# sourceMappingURL=xterm.js.map