/* * wee-input.c - default input callback for buffers * * Copyright (C) 2003-2017 Sébastien Helleu * * This file is part of WeeChat, the extensible chat client. * * WeeChat is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 3 of the License, or * (at your option) any later version. * * WeeChat is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with WeeChat. If not, see . */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include #include #include "weechat.h" #include "wee-input.h" #include "wee-config.h" #include "wee-hook.h" #include "wee-string.h" #include "wee-utf8.h" #include "../gui/gui-buffer.h" #include "../gui/gui-chat.h" #include "../gui/gui-filter.h" #include "../gui/gui-window.h" #include "../plugins/plugin.h" /* * Sends data to buffer input callback. */ void input_exec_data (struct t_gui_buffer *buffer, const char *data) { if (buffer->input_callback) { (void)(buffer->input_callback) (buffer->input_callback_pointer, buffer->input_callback_data, buffer, data); } else gui_chat_printf (buffer, _("%sYou can not write text in this " "buffer"), gui_chat_prefix[GUI_CHAT_PREFIX_ERROR]); } /* * Executes a command. * * Returns: * WEECHAT_RC_OK: command executed * WEECHAT_RC_ERROR: error, command not executed */ int input_exec_command (struct t_gui_buffer *buffer, int any_plugin, struct t_weechat_plugin *plugin, const char *string) { char *command, *command_name, *pos; int rc; if ((!string) || (!string[0])) return WEECHAT_RC_ERROR; command = strdup (string); if (!command) return WEECHAT_RC_ERROR; /* ignore spaces at the end of command */ pos = &command[strlen (command) - 1]; if (pos[0] == ' ') { while ((pos > command) && (pos[0] == ' ')) pos--; pos[1] = '\0'; } /* extract command name */ pos = strchr (command, ' '); command_name = (pos) ? string_strndup (command, pos - command) : strdup (command); if (!command_name) { free (command); return WEECHAT_RC_ERROR; } /* execute command */ rc = WEECHAT_RC_OK; switch (hook_command_exec (buffer, any_plugin, plugin, command)) { case HOOK_COMMAND_EXEC_OK: /* command hooked, OK (executed) */ break; case HOOK_COMMAND_EXEC_ERROR: /* command hooked, error */ rc = WEECHAT_RC_ERROR; break; case HOOK_COMMAND_EXEC_NOT_FOUND: /* * command not found: if unknown commands are accepted by this * buffer, just send input text as data to buffer, * otherwise display error */ if (buffer->input_get_unknown_commands) { input_exec_data (buffer, string); } else { gui_chat_printf_date_tags (NULL, 0, GUI_FILTER_TAG_NO_FILTER, _("%sError: unknown command \"%s\" " "(type /help for help)"), gui_chat_prefix[GUI_CHAT_PREFIX_ERROR], command_name); rc = WEECHAT_RC_ERROR; } break; case HOOK_COMMAND_EXEC_AMBIGUOUS_PLUGINS: /* command is ambiguous (exists for other plugins) */ gui_chat_printf_date_tags (NULL, 0, GUI_FILTER_TAG_NO_FILTER, _("%sError: ambiguous command \"%s\": " "it exists in many plugins and not in " "\"%s\" plugin"), gui_chat_prefix[GUI_CHAT_PREFIX_ERROR], command_name, plugin_get_name (plugin)); rc = WEECHAT_RC_ERROR; break; case HOOK_COMMAND_EXEC_AMBIGUOUS_INCOMPLETE: /* * command is ambiguous (incomplete command and multiple commands * start with this name) */ gui_chat_printf_date_tags (NULL, 0, GUI_FILTER_TAG_NO_FILTER, _("%sError: incomplete command \"%s\" " "and multiple commands start with " "this name"), gui_chat_prefix[GUI_CHAT_PREFIX_ERROR], command_name); rc = WEECHAT_RC_ERROR; break; case HOOK_COMMAND_EXEC_RUNNING: /* command is running */ gui_chat_printf_date_tags (NULL, 0, GUI_FILTER_TAG_NO_FILTER, _("%sError: too many calls to command " "\"%s\" (looping)"), gui_chat_prefix[GUI_CHAT_PREFIX_ERROR], command_name); rc = WEECHAT_RC_ERROR; break; default: break; } free (command); free (command_name); return rc; } /* * Reads user input and sends data to buffer's callback. * * Returns: * WEECHAT_RC_OK: data properly sent (or command executed successfully) * WEECHAT_RC_ERROR: error */ int input_data (struct t_gui_buffer *buffer, const char *data) { char *pos, *buf, str_buffer[128], *new_data, *buffer_full_name; const char *ptr_data, *ptr_data_for_buffer; int length, char_size, first_command, rc; rc = WEECHAT_RC_OK; if (!buffer || !gui_buffer_valid (buffer) || !data || !data[0] || (data[0] == '\r') || (data[0] == '\n')) { return WEECHAT_RC_ERROR; } buffer_full_name = strdup (buffer->full_name); if (!buffer_full_name) return WEECHAT_RC_ERROR; /* execute modifier "input_text_for_buffer" */ snprintf (str_buffer, sizeof (str_buffer), "0x%lx", (long unsigned int)buffer); new_data = hook_modifier_exec (NULL, "input_text_for_buffer", str_buffer, data); /* data was dropped? */ if (new_data && !new_data[0]) goto end; first_command = 1; ptr_data = (new_data) ? new_data : data; while (ptr_data && ptr_data[0]) { /* * if the buffer pointer is not valid any more (or if it's another * buffer), use the current buffer for the next command */ if (!first_command && (!gui_buffer_valid (buffer) || (strcmp (buffer->full_name, buffer_full_name) != 0))) { if (!gui_current_window || !gui_current_window->buffer) break; buffer = gui_current_window->buffer; free (buffer_full_name); buffer_full_name = strdup (buffer->full_name); if (!buffer_full_name) break; } pos = strchr (ptr_data, '\n'); if (pos) pos[0] = '\0'; ptr_data_for_buffer = string_input_for_buffer (ptr_data); if (ptr_data_for_buffer) { /* * input string is NOT a command, send it to buffer input * callback */ if (string_is_command_char (ptr_data_for_buffer)) { char_size = utf8_char_size (ptr_data_for_buffer); length = strlen (ptr_data_for_buffer) + char_size + 1; buf = malloc (length); if (buf) { memcpy (buf, ptr_data_for_buffer, char_size); snprintf (buf + char_size, length - char_size, "%s", ptr_data_for_buffer); input_exec_data (buffer, buf); free (buf); } } else input_exec_data (buffer, ptr_data_for_buffer); } else { /* input string is a command */ rc = input_exec_command (buffer, 1, buffer->plugin, ptr_data); } if (pos) { pos[0] = '\n'; ptr_data = pos + 1; } else ptr_data = NULL; first_command = 0; } end: if (new_data) free (new_data); if (buffer_full_name) free (buffer_full_name); return rc; }