Files
@ r28449:548e1fdb09a4
Branch filter:
Location: cpp/openttd-patchpack/source/src/console.cpp
r28449:548e1fdb09a4
11.9 KiB
text/x-c
Remove: Debug redirect over network
It does not work for dedicated servers because upon starting the process to
resolve the address to redirect to gets killed. Also with all the async going
on in the network code, the debug redirection will start very late in the
process.
It does not work for dedicated servers because upon starting the process to
resolve the address to redirect to gets killed. Also with all the async going
on in the network code, the debug redirection will start very late in the
process.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 | /*
* This file is part of OpenTTD.
* OpenTTD 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, version 2.
* OpenTTD 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 OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file console.cpp Handling of the in-game console. */
#include "stdafx.h"
#include "console_internal.h"
#include "network/network.h"
#include "network/network_func.h"
#include "network/network_admin.h"
#include "debug.h"
#include "console_func.h"
#include "settings_type.h"
#include "safeguards.h"
static const uint ICON_TOKEN_COUNT = 20; ///< Maximum number of tokens in one command
static const uint ICON_MAX_RECURSE = 10; ///< Maximum number of recursion
/* console parser */
/* static */ IConsole::CommandList &IConsole::Commands()
{
static IConsole::CommandList cmds;
return cmds;
}
/* static */ IConsole::AliasList &IConsole::Aliases()
{
static IConsole::AliasList aliases;
return aliases;
}
FILE *_iconsole_output_file;
void IConsoleInit()
{
_iconsole_output_file = nullptr;
_redirect_console_to_client = INVALID_CLIENT_ID;
_redirect_console_to_admin = INVALID_ADMIN_ID;
IConsoleGUIInit();
IConsoleStdLibRegister();
}
static void IConsoleWriteToLogFile(const std::string &string)
{
if (_iconsole_output_file != nullptr) {
/* if there is an console output file ... also print it there */
const char *header = GetLogPrefix();
if ((strlen(header) != 0 && fwrite(header, strlen(header), 1, _iconsole_output_file) != 1) ||
fwrite(string.c_str(), string.size(), 1, _iconsole_output_file) != 1 ||
fwrite("\n", 1, 1, _iconsole_output_file) != 1) {
fclose(_iconsole_output_file);
_iconsole_output_file = nullptr;
IConsolePrint(CC_ERROR, "Cannot write to console log file; closing the log file.");
}
}
}
bool CloseConsoleLogIfActive()
{
if (_iconsole_output_file != nullptr) {
IConsolePrint(CC_INFO, "Console log file closed.");
fclose(_iconsole_output_file);
_iconsole_output_file = nullptr;
return true;
}
return false;
}
void IConsoleFree()
{
IConsoleGUIFree();
CloseConsoleLogIfActive();
}
/**
* Handle the printing of text entered into the console or redirected there
* by any other means. Text can be redirected to other clients in a network game
* as well as to a logfile. If the network server is a dedicated server, all activities
* are also logged. All lines to print are added to a temporary buffer which can be
* used as a history to print them onscreen
* @param colour_code The colour of the command.
* @param string The message to output on the console (notice, error, etc.)
*/
void IConsolePrint(TextColour colour_code, const std::string &string)
{
assert(IsValidConsoleColour(colour_code));
if (_redirect_console_to_client != INVALID_CLIENT_ID) {
/* Redirect the string to the client */
NetworkServerSendRcon(_redirect_console_to_client, colour_code, string);
return;
}
if (_redirect_console_to_admin != INVALID_ADMIN_ID) {
NetworkServerSendAdminRcon(_redirect_console_to_admin, colour_code, string);
return;
}
/* Create a copy of the string, strip it of colours and invalid
* characters and (when applicable) assign it to the console buffer */
std::string str = StrMakeValid(string);
if (_network_dedicated) {
NetworkAdminConsole("console", str);
fmt::print("{}{}\n", GetLogPrefix(), str);
fflush(stdout);
IConsoleWriteToLogFile(str);
return;
}
IConsoleWriteToLogFile(str);
IConsoleGUIPrint(colour_code, str);
}
/**
* Change a string into its number representation. Supports
* decimal and hexadecimal numbers as well as 'on'/'off' 'true'/'false'
* @param *value the variable a successful conversion will be put in
* @param *arg the string to be converted
* @return Return true on success or false on failure
*/
bool GetArgumentInteger(uint32_t *value, const char *arg)
{
char *endptr;
if (strcmp(arg, "on") == 0 || strcmp(arg, "true") == 0) {
*value = 1;
return true;
}
if (strcmp(arg, "off") == 0 || strcmp(arg, "false") == 0) {
*value = 0;
return true;
}
*value = std::strtoul(arg, &endptr, 0);
return arg != endptr;
}
/**
* Creates a copy of a string with underscores removed from it
* @param name String to remove the underscores from.
* @return A copy of \a name, without underscores.
*/
static std::string RemoveUnderscores(std::string name)
{
name.erase(std::remove(name.begin(), name.end(), '_'), name.end());
return name;
}
/**
* Register a new command to be used in the console
* @param name name of the command that will be used
* @param proc function that will be called upon execution of command
*/
/* static */ void IConsole::CmdRegister(const std::string &name, IConsoleCmdProc *proc, IConsoleHook *hook)
{
IConsole::Commands().try_emplace(RemoveUnderscores(name), name, proc, hook);
}
/**
* Find the command pointed to by its string
* @param name command to be found
* @return return Cmdstruct of the found command, or nullptr on failure
*/
/* static */ IConsoleCmd *IConsole::CmdGet(const std::string &name)
{
auto item = IConsole::Commands().find(RemoveUnderscores(name));
if (item != IConsole::Commands().end()) return &item->second;
return nullptr;
}
/**
* Register a an alias for an already existing command in the console
* @param name name of the alias that will be used
* @param cmd name of the command that 'name' will be alias of
*/
/* static */ void IConsole::AliasRegister(const std::string &name, const std::string &cmd)
{
auto result = IConsole::Aliases().try_emplace(RemoveUnderscores(name), name, cmd);
if (!result.second) IConsolePrint(CC_ERROR, "An alias with the name '{}' already exists.", name);
}
/**
* Find the alias pointed to by its string
* @param name alias to be found
* @return return Aliasstruct of the found alias, or nullptr on failure
*/
/* static */ IConsoleAlias *IConsole::AliasGet(const std::string &name)
{
auto item = IConsole::Aliases().find(RemoveUnderscores(name));
if (item != IConsole::Aliases().end()) return &item->second;
return nullptr;
}
/**
* An alias is just another name for a command, or for more commands
* Execute it as well.
* @param *alias is the alias of the command
* @param tokencount the number of parameters passed
* @param *tokens are the parameters given to the original command (0 is the first param)
*/
static void IConsoleAliasExec(const IConsoleAlias *alias, byte tokencount, char *tokens[ICON_TOKEN_COUNT], const uint recurse_count)
{
std::string alias_buffer;
Debug(console, 6, "Requested command is an alias; parsing...");
if (recurse_count > ICON_MAX_RECURSE) {
IConsolePrint(CC_ERROR, "Too many alias expansions, recursion limit reached.");
return;
}
for (const char *cmdptr = alias->cmdline.c_str(); *cmdptr != '\0'; cmdptr++) {
switch (*cmdptr) {
case '\'': // ' will double for ""
alias_buffer += '\"';
break;
case ';': // Cmd separator; execute previous and start new command
IConsoleCmdExec(alias_buffer, recurse_count);
alias_buffer.clear();
cmdptr++;
break;
case '%': // Some or all parameters
cmdptr++;
switch (*cmdptr) {
case '+': { // All parameters separated: "[param 1]" "[param 2]"
for (uint i = 0; i != tokencount; i++) {
if (i != 0) alias_buffer += ' ';
alias_buffer += '\"';
alias_buffer += tokens[i];
alias_buffer += '\"';
}
break;
}
case '!': { // Merge the parameters to one: "[param 1] [param 2] [param 3...]"
alias_buffer += '\"';
for (uint i = 0; i != tokencount; i++) {
if (i != 0) alias_buffer += " ";
alias_buffer += tokens[i];
}
alias_buffer += '\"';
break;
}
default: { // One specific parameter: %A = [param 1] %B = [param 2] ...
int param = *cmdptr - 'A';
if (param < 0 || param >= tokencount) {
IConsolePrint(CC_ERROR, "Too many or wrong amount of parameters passed to alias.");
IConsolePrint(CC_HELP, "Usage of alias '{}': '{}'.", alias->name, alias->cmdline);
return;
}
alias_buffer += '\"';
alias_buffer += tokens[param];
alias_buffer += '\"';
break;
}
}
break;
default:
alias_buffer += *cmdptr;
break;
}
if (alias_buffer.size() >= ICON_MAX_STREAMSIZE - 1) {
IConsolePrint(CC_ERROR, "Requested alias execution would overflow execution buffer.");
return;
}
}
IConsoleCmdExec(alias_buffer, recurse_count);
}
/**
* Execute a given command passed to us. First chop it up into
* individual tokens (separated by spaces), then execute it if possible
* @param command_string string to be parsed and executed
*/
void IConsoleCmdExec(const std::string &command_string, const uint recurse_count)
{
const char *cmdptr;
char *tokens[ICON_TOKEN_COUNT], tokenstream[ICON_MAX_STREAMSIZE];
uint t_index, tstream_i;
bool longtoken = false;
bool foundtoken = false;
if (command_string[0] == '#') return; // comments
for (cmdptr = command_string.c_str(); *cmdptr != '\0'; cmdptr++) {
if (!IsValidChar(*cmdptr, CS_ALPHANUMERAL)) {
IConsolePrint(CC_ERROR, "Command '{}' contains malformed characters.", command_string);
return;
}
}
Debug(console, 4, "Executing cmdline: '{}'", command_string);
memset(&tokens, 0, sizeof(tokens));
memset(&tokenstream, 0, sizeof(tokenstream));
/* 1. Split up commandline into tokens, separated by spaces, commands
* enclosed in "" are taken as one token. We can only go as far as the amount
* of characters in our stream or the max amount of tokens we can handle */
for (cmdptr = command_string.c_str(), t_index = 0, tstream_i = 0; *cmdptr != '\0'; cmdptr++) {
if (tstream_i >= lengthof(tokenstream)) {
IConsolePrint(CC_ERROR, "Command line too long.");
return;
}
switch (*cmdptr) {
case ' ': // Token separator
if (!foundtoken) break;
if (longtoken) {
tokenstream[tstream_i] = *cmdptr;
} else {
tokenstream[tstream_i] = '\0';
foundtoken = false;
}
tstream_i++;
break;
case '"': // Tokens enclosed in "" are one token
longtoken = !longtoken;
if (!foundtoken) {
if (t_index >= lengthof(tokens)) {
IConsolePrint(CC_ERROR, "Command line too long.");
return;
}
tokens[t_index++] = &tokenstream[tstream_i];
foundtoken = true;
}
break;
case '\\': // Escape character for ""
if (cmdptr[1] == '"' && tstream_i + 1 < lengthof(tokenstream)) {
tokenstream[tstream_i++] = *++cmdptr;
break;
}
FALLTHROUGH;
default: // Normal character
tokenstream[tstream_i++] = *cmdptr;
if (!foundtoken) {
if (t_index >= lengthof(tokens)) {
IConsolePrint(CC_ERROR, "Command line too long.");
return;
}
tokens[t_index++] = &tokenstream[tstream_i - 1];
foundtoken = true;
}
break;
}
}
for (uint i = 0; i < lengthof(tokens) && tokens[i] != nullptr; i++) {
Debug(console, 8, "Token {} is: '{}'", i, tokens[i]);
}
if (StrEmpty(tokens[0])) return; // don't execute empty commands
/* 2. Determine type of command (cmd or alias) and execute
* First try commands, then aliases. Execute
* the found action taking into account its hooking code
*/
IConsoleCmd *cmd = IConsole::CmdGet(tokens[0]);
if (cmd != nullptr) {
ConsoleHookResult chr = (cmd->hook == nullptr ? CHR_ALLOW : cmd->hook(true));
switch (chr) {
case CHR_ALLOW:
if (!cmd->proc(t_index, tokens)) { // index started with 0
cmd->proc(0, nullptr); // if command failed, give help
}
return;
case CHR_DISALLOW: return;
case CHR_HIDE: break;
}
}
t_index--;
IConsoleAlias *alias = IConsole::AliasGet(tokens[0]);
if (alias != nullptr) {
IConsoleAliasExec(alias, t_index, &tokens[1], recurse_count + 1);
return;
}
IConsolePrint(CC_ERROR, "Command '{}' not found.", tokens[0]);
}
|