| 1 | /* |
| 2 | suPHP - (c)2002-2008 Sebastian Marsching <sebastian@marsching.com> |
| 3 | |
| 4 | This file is part of suPHP. |
| 5 | |
| 6 | suPHP is free software; you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by |
| 8 | the Free Software Foundation; either version 2 of the License, or |
| 9 | (at your option) any later version. |
| 10 | |
| 11 | suPHP is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | GNU General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with suPHP; if not, write to the Free Software |
| 18 | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 | */ |
| 20 | |
| 21 | #include <iostream> |
| 22 | |
| 23 | #include "config.h" |
| 24 | |
| 25 | #include "CommandLine.hpp" |
| 26 | #include "Environment.hpp" |
| 27 | #include "Exception.hpp" |
| 28 | #include "File.hpp" |
| 29 | #include "Configuration.hpp" |
| 30 | #include "API.hpp" |
| 31 | #include "API_Helper.hpp" |
| 32 | #include "Logger.hpp" |
| 33 | #include "UserInfo.hpp" |
| 34 | #include "GroupInfo.hpp" |
| 35 | #include "Util.hpp" |
| 36 | #include "PathMatcher.hpp" |
| 37 | |
| 38 | #include "Application.hpp" |
| 39 | |
| 40 | using namespace suPHP; |
| 41 | |
| 42 | |
| 43 | suPHP::Application::Application() { |
| 44 | /* do nothing */ |
| 45 | } |
| 46 | |
| 47 | |
| 48 | int suPHP::Application::run(CommandLine& cmdline, Environment& env) { |
| 49 | Configuration config; |
| 50 | API& api = API_Helper::getSystemAPI(); |
| 51 | Logger& logger = api.getSystemLogger(); |
| 52 | |
| 53 | #ifdef OPT_CONFIGFILE |
| 54 | File cfgFile = File(OPT_CONFIGFILE); |
| 55 | #else |
| 56 | File cfgFile = File("/etc/suphp.conf"); |
| 57 | #endif |
| 58 | |
| 59 | std::string interpreter; |
| 60 | TargetMode targetMode; |
| 61 | Environment newEnv; |
| 62 | |
| 63 | // Begin try block - soft exception cannot really be handled before |
| 64 | // initialization |
| 65 | try { |
| 66 | std::string scriptFilename; |
| 67 | UserInfo targetUser; |
| 68 | GroupInfo targetGroup; |
| 69 | |
| 70 | // If caller is super-user, print info message and exit |
| 71 | if (api.getRealProcessUser().isSuperUser()) { |
| 72 | this->printAboutMessage(); |
| 73 | return 0; |
| 74 | } |
| 75 | config.readFromFile(cfgFile); |
| 76 | |
| 77 | // Check permissions (real uid, effective uid) |
| 78 | this->checkProcessPermissions(config); |
| 79 | |
| 80 | // Initialize logger |
| 81 | // not done before, because we need super-user privileges for |
| 82 | // logging anyway |
| 83 | logger.init(config); |
| 84 | |
| 85 | try { |
| 86 | scriptFilename = env.getVar("SCRIPT_FILENAME"); |
| 87 | } catch (KeyNotFoundException& e) { |
| 88 | logger.logError("Environment variable SCRIPT_FILENAME not set"); |
| 89 | this->printAboutMessage(); |
| 90 | return 1; |
| 91 | } |
| 92 | |
| 93 | |
| 94 | // Do checks that do not need target user info |
| 95 | this->checkScriptFileStage1(scriptFilename, config, env); |
| 96 | |
| 97 | // Find out target user |
| 98 | this->checkProcessPermissions(scriptFilename, config, env, targetUser, targetGroup); |
| 99 | |
| 100 | // Now do checks that might require user info |
| 101 | this->checkScriptFileStage2(scriptFilename, config, env, targetUser, targetGroup); |
| 102 | |
| 103 | // Root privileges are needed for chroot() |
| 104 | // so do this before changing process permissions |
| 105 | if (config.getChrootPath().length() > 0) { |
| 106 | PathMatcher pathMatcher = PathMatcher(targetUser, targetGroup); |
| 107 | std::string chrootPath = pathMatcher.resolveVariables(config.getChrootPath()); |
| 108 | api.chroot(chrootPath); |
| 109 | } |
| 110 | |
| 111 | this->changeProcessPermissions(config, targetUser, targetGroup); |
| 112 | |
| 113 | interpreter = this->getInterpreter(env, config); |
| 114 | targetMode = this->getTargetMode(interpreter); |
| 115 | |
| 116 | // Prepare environment for new process |
| 117 | newEnv = this->prepareEnvironment(env, config, targetMode); |
| 118 | |
| 119 | // Set PATH_TRANSLATED to SCRIPT_FILENAME, otherwise |
| 120 | // the PHP interpreter will not be able to find the script |
| 121 | if (targetMode == TARGETMODE_PHP && newEnv.hasVar("PATH_TRANSLATED")) { |
| 122 | newEnv.setVar("PATH_TRANSLATED", scriptFilename); |
| 123 | } |
| 124 | |
| 125 | // Log attempt to execute script |
| 126 | logger.logInfo("Executing \"" + scriptFilename + "\" as UID " |
| 127 | + Util::intToStr(api.getEffectiveProcessUser().getUid()) |
| 128 | + ", GID " |
| 129 | + Util::intToStr( |
| 130 | api.getEffectiveProcessGroup().getGid())); |
| 131 | |
| 132 | this->executeScript(scriptFilename, interpreter, targetMode, newEnv, |
| 133 | config); |
| 134 | |
| 135 | // Function should never return |
| 136 | // So, if we get here, return with error code |
| 137 | return 1; |
| 138 | } catch (SoftException& e) { |
| 139 | if (!config.getErrorsToBrowser()) { |
| 140 | std::cerr << e; |
| 141 | return 2; |
| 142 | } |
| 143 | std::cout << "Content-Type: text/html\n" |
| 144 | << "Status: 500\n" |
| 145 | << "\n" |
| 146 | << "<html>\n" |
| 147 | << " <head>\n" |
| 148 | << " <title>500 Internal Server Error</title>\n" |
| 149 | << " </head>\n" |
| 150 | << " <body>\n" |
| 151 | << " <h1>Internal Server Error</h1>\n" |
| 152 | << " <p>" << e.getMessage() << "</p>\n" |
| 153 | << " <hr/>" |
| 154 | << " <address>suPHP " << PACKAGE_VERSION << "</address>\n" |
| 155 | << " </body>\n" |
| 156 | << "</html>\n"; |
| 157 | } |
| 158 | } |
| 159 | |
| 160 | |
| 161 | void suPHP::Application::printAboutMessage() { |
| 162 | std::cerr << "suPHP version " << PACKAGE_VERSION << "\n"; |
| 163 | std::cerr << "(c) 2002-2007 Sebastian Marsching\n"; |
| 164 | std::cerr << std::endl; |
| 165 | std::cerr << "suPHP has to be called by mod_suphp to work." << std::endl; |
| 166 | } |
| 167 | |
| 168 | |
| 169 | void suPHP::Application::checkProcessPermissions(Configuration& config) |
| 170 | throw (SecurityException, LookupException) { |
| 171 | API& api = API_Helper::getSystemAPI(); |
| 172 | if (api.getRealProcessUser() != |
| 173 | api.getUserInfo(config.getWebserverUser())) { |
| 174 | throw SecurityException("Calling user is not webserver user!", |
| 175 | __FILE__, __LINE__); |
| 176 | } |
| 177 | |
| 178 | if (!api.getEffectiveProcessUser().isSuperUser()) { |
| 179 | throw SecurityException( |
| 180 | "Do not have root privileges. Executable not set-uid root?", |
| 181 | __FILE__, __LINE__); |
| 182 | } |
| 183 | } |
| 184 | |
| 185 | |
| 186 | void suPHP::Application::checkScriptFileStage1( |
| 187 | const std::string& scriptFilename, |
| 188 | const Configuration& config, |
| 189 | const Environment& environment) const |
| 190 | throw (SystemException, SoftException) { |
| 191 | Logger& logger = API_Helper::getSystemAPI().getSystemLogger(); |
| 192 | File scriptFile = File(scriptFilename); |
| 193 | File realScriptFile = File(scriptFile.getRealPath()); |
| 194 | |
| 195 | // Check wheter file exists |
| 196 | if (!scriptFile.exists()) { |
| 197 | std::string error = "File " + scriptFile.getPath() + " does not exist"; |
| 198 | logger.logWarning(error); |
| 199 | throw SoftException(error, __FILE__, __LINE__); |
| 200 | } |
| 201 | if (!realScriptFile.exists()) { |
| 202 | std::string error = "File " + realScriptFile.getPath() |
| 203 | + " referenced by symlink " +scriptFile.getPath() |
| 204 | + " does not exist"; |
| 205 | logger.logWarning(error); |
| 206 | throw SoftException(error, __FILE__, __LINE__); |
| 207 | } |
| 208 | |
| 209 | // If enabled, check whether script is in the vhost's docroot |
| 210 | if (!environment.hasVar("DOCUMENT_ROOT")) |
| 211 | throw SoftException("Environment variable DOCUMENT_ROOT not set", |
| 212 | __FILE__, __LINE__); |
| 213 | if (config.getCheckVHostDocroot() |
| 214 | && realScriptFile.getPath().find(environment.getVar("DOCUMENT_ROOT")) |
| 215 | != 0) { |
| 216 | |
| 217 | std::string error = "File \"" + realScriptFile.getPath() |
| 218 | + "\" is not in document root of Vhost \"" |
| 219 | + environment.getVar("DOCUMENT_ROOT") + "\""; |
| 220 | logger.logWarning(error); |
| 221 | throw SoftException(error, __FILE__, __LINE__); |
| 222 | } |
| 223 | if (config.getCheckVHostDocroot() |
| 224 | && scriptFile.getPath().find(environment.getVar("DOCUMENT_ROOT")) |
| 225 | != 0) { |
| 226 | |
| 227 | std::string error = "File \"" + scriptFile.getPath() |
| 228 | + "\" is not in document root of Vhost \"" |
| 229 | + environment.getVar("DOCUMENT_ROOT") + "\""; |
| 230 | logger.logWarning(error); |
| 231 | throw SoftException(error, __FILE__, __LINE__); |
| 232 | } |
| 233 | |
| 234 | // Check script permissions |
| 235 | // Directories will be checked later |
| 236 | if (!realScriptFile.hasUserReadBit()) { |
| 237 | std::string error = "File \"" + realScriptFile.getPath() |
| 238 | + "\" not readable"; |
| 239 | logger.logWarning(error); |
| 240 | throw SoftException(error, __FILE__, __LINE__); |
| 241 | |
| 242 | } |
| 243 | |
| 244 | if (!config.getAllowFileGroupWriteable() |
| 245 | && realScriptFile.hasGroupWriteBit()) { |
| 246 | std::string error = "File \"" + realScriptFile.getPath() |
| 247 | + "\" is writeable by group"; |
| 248 | logger.logWarning(error); |
| 249 | throw SoftException(error, __FILE__, __LINE__); |
| 250 | } |
| 251 | |
| 252 | if (!config.getAllowFileOthersWriteable() |
| 253 | && realScriptFile.hasOthersWriteBit()) { |
| 254 | std::string error = "File \"" + realScriptFile.getPath() |
| 255 | + "\" is writeable by others"; |
| 256 | logger.logWarning(error); |
| 257 | throw SoftException(error, __FILE__, __LINE__); |
| 258 | } |
| 259 | |
| 260 | // Check UID/GID of symlink is matching target |
| 261 | if (scriptFile.getUser() != realScriptFile.getUser() |
| 262 | || scriptFile.getGroup() != realScriptFile.getGroup()) { |
| 263 | std::string error = "UID or GID of symlink \"" + scriptFile.getPath() |
| 264 | + "\" is not matching its target"; |
| 265 | logger.logWarning(error); |
| 266 | throw SoftException(error, __FILE__, __LINE__); |
| 267 | } |
| 268 | } |
| 269 | |
| 270 | void suPHP::Application::checkScriptFileStage2( |
| 271 | const std::string& scriptFilename, |
| 272 | const Configuration& config, |
| 273 | const Environment& environment, |
| 274 | const UserInfo& targetUser, |
| 275 | const GroupInfo& targetGroup) const |
| 276 | throw (SystemException, SoftException) { |
| 277 | Logger& logger = API_Helper::getSystemAPI().getSystemLogger(); |
| 278 | File scriptFile = File(scriptFilename); |
| 279 | PathMatcher pathMatcher = PathMatcher(targetUser, targetGroup); |
| 280 | |
| 281 | // Get full path to script file |
| 282 | File realScriptFile = File(scriptFile.getRealPath()); |
| 283 | |
| 284 | // Check wheter script is in one of the defined docroots |
| 285 | bool file_in_docroot = false; |
| 286 | const std::vector<std::string> docroots = config.getDocroots(); |
| 287 | for (std::vector<std::string>::const_iterator i = docroots.begin(); i != docroots.end(); i++) { |
| 288 | std::string docroot = *i; |
| 289 | if (pathMatcher.matches(docroot, realScriptFile.getPath())) { |
| 290 | file_in_docroot = true; |
| 291 | break; |
| 292 | } |
| 293 | } |
| 294 | if (!file_in_docroot) { |
| 295 | std::string error = "Script \"" + scriptFile.getPath() |
| 296 | + "\" resolving to \"" + realScriptFile.getPath() |
| 297 | + "\" not within configured docroot"; |
| 298 | logger.logWarning(error); |
| 299 | throw SoftException(error, __FILE__, __LINE__); |
| 300 | } |
| 301 | file_in_docroot = false; |
| 302 | for (std::vector<std::string>::const_iterator i = docroots.begin(); i != docroots.end(); i++) { |
| 303 | std::string docroot = *i; |
| 304 | if (pathMatcher.matches(docroot, scriptFile.getPath())) { |
| 305 | file_in_docroot = true; |
| 306 | break; |
| 307 | } |
| 308 | } |
| 309 | if (!file_in_docroot) { |
| 310 | std::string error = "Script \"" + scriptFile.getPath() |
| 311 | + "\" not within configured docroot"; |
| 312 | logger.logWarning(error); |
| 313 | throw SoftException(error, __FILE__, __LINE__); |
| 314 | } |
| 315 | |
| 316 | // Check directory ownership and permissions |
| 317 | checkParentDirectories(realScriptFile, targetUser, config); |
| 318 | checkParentDirectories(scriptFile, targetUser, config); |
| 319 | } |
| 320 | |
| 321 | void suPHP::Application::checkProcessPermissions( |
| 322 | const std::string& scriptFilename, |
| 323 | const Configuration& config, |
| 324 | const Environment& environment, |
| 325 | UserInfo& targetUser, |
| 326 | GroupInfo& targetGroup) const |
| 327 | throw (SystemException, SoftException, SecurityException) { |
| 328 | |
| 329 | File scriptFile = File(scriptFilename); |
| 330 | File realScriptFile = File(scriptFile.getRealPath()); |
| 331 | API& api = API_Helper::getSystemAPI(); |
| 332 | Logger& logger = api.getSystemLogger(); |
| 333 | |
| 334 | // Make sure that exactly one mode is set |
| 335 | |
| 336 | #if !defined(OPT_USERGROUP_OWNER) && !defined(OPT_USERGROUP_FORCE) && !defined(OPT_USERGROUP_PARANOID) |
| 337 | #error "No uid/gid change model specified" |
| 338 | #endif |
| 339 | #if (defined(OPT_USERGROUP_OWNER) && defined(OPT_USERGROUP_FORCE)) || (defined(OPT_USERGROUP_FORCE) && defined(OPT_USERGROUP_PARANOID)) || (defined(OPT_USERGROUP_OWNER) && defined(OPT_USERGROUP_PARANOID)) |
| 340 | #error "More than one uid/gid change model specified" |
| 341 | #endif |
| 342 | |
| 343 | // Common code (for all security modes) |
| 344 | |
| 345 | // Check UID/GID of script |
| 346 | if (scriptFile.getUser().getUid() < config.getMinUid()) { |
| 347 | std::string error = "UID of script \"" + scriptFilename |
| 348 | + "\" is smaller than min_uid"; |
| 349 | logger.logWarning(error); |
| 350 | throw SoftException(error, __FILE__, __LINE__); |
| 351 | } |
| 352 | if (scriptFile.getGroup().getGid() < config.getMinGid()) { |
| 353 | std::string error = "GID of script \"" + scriptFilename |
| 354 | + "\" is smaller than min_gid"; |
| 355 | logger.logWarning(error); |
| 356 | throw SoftException(error, __FILE__, __LINE__); |
| 357 | } |
| 358 | |
| 359 | // Paranoid and force mode |
| 360 | |
| 361 | #if (defined(OPT_USERGROUP_PARANOID) || defined(OPT_USERGROUP_FORCE)) |
| 362 | std::string targetUsername, targetGroupname; |
| 363 | try { |
| 364 | targetUsername = environment.getVar("SUPHP_USER"); |
| 365 | targetGroupname = environment.getVar("SUPHP_GROUP"); |
| 366 | } catch (KeyNotFoundException& e) { |
| 367 | throw SecurityException( |
| 368 | "Environment variable SUPHP_USER or SUPHP_GROUP not set", |
| 369 | __FILE__, __LINE__); |
| 370 | } |
| 371 | |
| 372 | if (targetUsername[0] == '#' && targetUsername.find_first_not_of( |
| 373 | "0123456789", 1) == std::string::npos) { |
| 374 | targetUser = api.getUserInfo(Util::strToInt(targetUsername.substr(1))); |
| 375 | } else { |
| 376 | targetUser = api.getUserInfo(targetUsername); |
| 377 | } |
| 378 | |
| 379 | if (targetGroupname[0] == '#' && targetGroupname.find_first_not_of( |
| 380 | "0123456789", 1) == std::string::npos) { |
| 381 | targetGroup = api.getGroupInfo( |
| 382 | Util::strToInt(targetGroupname.substr(1))); |
| 383 | } else { |
| 384 | targetGroup = api.getGroupInfo(targetGroupname); |
| 385 | } |
| 386 | #endif // OPT_USERGROUP_PARANOID || OPT_USERGROUP_FORCE |
| 387 | |
| 388 | // Owner mode only |
| 389 | |
| 390 | #ifdef OPT_USERGROUP_OWNER |
| 391 | targetUser = scriptFile.getUser(); |
| 392 | targetGroup = scriptFile.getGroup(); |
| 393 | #endif // OPT_USERGROUP_OWNER |
| 394 | |
| 395 | // Paranoid mode only |
| 396 | |
| 397 | #ifdef OPT_USERGROUP_PARANOID |
| 398 | if (targetUser != scriptFile.getUser()) { |
| 399 | std::string error ="Mismatch between target UID (" |
| 400 | + Util::intToStr(targetUser.getUid()) + ") and UID (" |
| 401 | + Util::intToStr(scriptFile.getUser().getUid()) + ") of file \"" |
| 402 | + scriptFile.getPath() + "\""; |
| 403 | logger.logWarning(error); |
| 404 | throw SoftException(error, __FILE__, __LINE__); |
| 405 | } |
| 406 | |
| 407 | if (targetGroup != scriptFile.getGroup()) { |
| 408 | std::string error ="Mismatch between target GID (" |
| 409 | + Util::intToStr(targetGroup.getGid()) + ") and GID (" |
| 410 | + Util::intToStr(scriptFile.getGroup().getGid()) + ") of file \"" |
| 411 | + scriptFile.getPath() + "\""; |
| 412 | logger.logWarning(error); |
| 413 | throw SoftException(error, __FILE__, __LINE__); |
| 414 | } |
| 415 | #endif // OPT_USERGROUP_PARANOID |
| 416 | } |
| 417 | |
| 418 | void suPHP::Application::changeProcessPermissions( |
| 419 | const Configuration& config, |
| 420 | const UserInfo& targetUser, |
| 421 | const GroupInfo& targetGroup) const |
| 422 | throw (SystemException, SoftException, SecurityException) { |
| 423 | API& api = API_Helper::getSystemAPI(); |
| 424 | |
| 425 | // Set new group first, because we still need super-user privileges |
| 426 | // for this |
| 427 | api.setProcessGroup(targetGroup); |
| 428 | |
| 429 | // Then set new user |
| 430 | api.setProcessUser(targetUser); |
| 431 | |
| 432 | api.setUmask(config.getUmask()); |
| 433 | } |
| 434 | |
| 435 | |
| 436 | Environment suPHP::Application::prepareEnvironment( |
| 437 | const Environment& sourceEnv, const Configuration& config, TargetMode mode) |
| 438 | throw (KeyNotFoundException) { |
| 439 | // Create environment for new process from old environment |
| 440 | Environment env = sourceEnv; |
| 441 | |
| 442 | // Delete unwanted environment variables |
| 443 | if (env.hasVar("LD_PRELOAD")) |
| 444 | env.deleteVar("LD_PRELOAD"); |
| 445 | if (env.hasVar("LD_LIBRARY_PATH")) |
| 446 | env.deleteVar("LD_LIBRARY_PATH"); |
| 447 | if (env.hasVar("SUPHP_USER")) |
| 448 | env.deleteVar("SUPHP_USER"); |
| 449 | if (env.hasVar("SUPHP_GROUP")) |
| 450 | env.deleteVar("SUPHP_GROUP"); |
| 451 | if (env.hasVar("SUPHP_HANDLER")) |
| 452 | env.deleteVar("SUPHP_HANDLER"); |
| 453 | if (env.hasVar("SUPHP_AUTH_USER")) |
| 454 | env.deleteVar("SUPHP_AUTH_USER"); |
| 455 | if (env.hasVar("SUPHP_AUTH_PW")) |
| 456 | env.deleteVar("SUPHP_AUTH_PW"); |
| 457 | if (env.hasVar("SUPHP_PHP_CONFIG")) |
| 458 | env.deleteVar("SUPHP_PHP_CONFIG"); |
| 459 | |
| 460 | // Reset PATH |
| 461 | env.putVar("PATH", config.getEnvPath()); |
| 462 | |
| 463 | // If we are in PHP mode, set PHP specific variables |
| 464 | if (mode == TARGETMODE_PHP) { |
| 465 | if (sourceEnv.hasVar("SUPHP_PHP_CONFIG")) |
| 466 | env.putVar("PHPRC", sourceEnv.getVar("SUPHP_PHP_CONFIG")); |
| 467 | if (sourceEnv.hasVar("SUPHP_AUTH_USER") |
| 468 | && sourceEnv.hasVar("SUPHP_AUTH_PW")) { |
| 469 | env.putVar("PHP_AUTH_USER", sourceEnv.getVar("SUPHP_AUTH_USER")); |
| 470 | env.putVar("PHP_AUTH_PW", sourceEnv.getVar("SUPHP_AUTH_PW")); |
| 471 | } |
| 472 | |
| 473 | // PHP may need this, when compiled with security features |
| 474 | if (!env.hasVar("REDIRECT_STATUS")) { |
| 475 | env.putVar("REDIRECT_STATUS", "200"); |
| 476 | } |
| 477 | } |
| 478 | |
| 479 | return env; |
| 480 | } |
| 481 | |
| 482 | |
| 483 | std::string suPHP::Application::getInterpreter( |
| 484 | const Environment& env, const Configuration& config) |
| 485 | throw (SecurityException) { |
| 486 | if (!env.hasVar("SUPHP_HANDLER")) |
| 487 | throw SecurityException("Environment variable SUPHP_HANDLER not set", |
| 488 | __FILE__, __LINE__); |
| 489 | std::string handler = env.getVar("SUPHP_HANDLER"); |
| 490 | |
| 491 | std::string interpreter = ""; |
| 492 | try { |
| 493 | interpreter = config.getInterpreter(handler); |
| 494 | } catch (KeyNotFoundException& e) { |
| 495 | throw SecurityException ("Handler not found in configuration", e, |
| 496 | __FILE__, __LINE__); |
| 497 | } |
| 498 | |
| 499 | return interpreter; |
| 500 | } |
| 501 | |
| 502 | |
| 503 | TargetMode suPHP::Application::getTargetMode(const std::string& interpreter) |
| 504 | throw (SecurityException) { |
| 505 | if (interpreter.substr(0, 4) == "php:") |
| 506 | return TARGETMODE_PHP; |
| 507 | else if (interpreter == "execute:!self") |
| 508 | return TARGETMODE_SELFEXECUTE; |
| 509 | else |
| 510 | throw SecurityException("Unknown Interpreter: " + interpreter, |
| 511 | __FILE__, __LINE__); |
| 512 | } |
| 513 | |
| 514 | |
| 515 | void suPHP::Application::executeScript(const std::string& scriptFilename, |
| 516 | const std::string& interpreter, |
| 517 | TargetMode mode, |
| 518 | const Environment& env, |
| 519 | const Configuration& config) const |
| 520 | throw (SoftException) { |
| 521 | try { |
| 522 | // Change working directory to script path |
| 523 | API_Helper::getSystemAPI().setCwd( |
| 524 | File(scriptFilename).getParentDirectory().getPath()); |
| 525 | if (mode == TARGETMODE_PHP) { |
| 526 | std::string interpreterPath = interpreter.substr(4); |
| 527 | CommandLine cline; |
| 528 | cline.putArgument(interpreterPath); |
| 529 | API_Helper::getSystemAPI().execute(interpreterPath, cline, env); |
| 530 | } else if (mode == TARGETMODE_SELFEXECUTE) { |
| 531 | CommandLine cline; |
| 532 | cline.putArgument(scriptFilename); |
| 533 | API_Helper::getSystemAPI().execute(scriptFilename, cline, env); |
| 534 | } |
| 535 | } catch (SystemException& e) { |
| 536 | throw SoftException("Could not execute script \"" + scriptFilename |
| 537 | + "\"", e, __FILE__, __LINE__); |
| 538 | } |
| 539 | } |
| 540 | |
| 541 | |
| 542 | void suPHP::Application::checkParentDirectories(const File& file, |
| 543 | const UserInfo& owner, |
| 544 | const Configuration& config) const throw (SoftException) { |
| 545 | File directory = file; |
| 546 | Logger& logger = API_Helper::getSystemAPI().getSystemLogger(); |
| 547 | do { |
| 548 | directory = directory.getParentDirectory(); |
| 549 | |
| 550 | UserInfo directoryOwner = directory.getUser(); |
| 551 | if (directoryOwner != owner && !directoryOwner.isSuperUser()) { |
| 552 | std::string error = "Directory " + directory.getPath() |
| 553 | + " is not owned by " + owner.getUsername(); |
| 554 | logger.logWarning(error); |
| 555 | throw SoftException(error, __FILE__, __LINE__); |
| 556 | } |
| 557 | |
| 558 | if (!directory.isSymlink() |
| 559 | && !config.getAllowDirectoryGroupWriteable() |
| 560 | && directory.hasGroupWriteBit()) { |
| 561 | std::string error = "Directory \"" + directory.getPath() |
| 562 | + "\" is writeable by group"; |
| 563 | logger.logWarning(error); |
| 564 | throw SoftException(error, __FILE__, __LINE__); |
| 565 | } |
| 566 | |
| 567 | if (!directory.isSymlink() |
| 568 | && !config.getAllowDirectoryOthersWriteable() |
| 569 | && directory.hasOthersWriteBit()) { |
| 570 | std::string error = "Directory \"" + directory.getPath() |
| 571 | + "\" is writeable by others"; |
| 572 | logger.logWarning(error); |
| 573 | throw SoftException(error, __FILE__, __LINE__); |
| 574 | } |
| 575 | } while (directory.getPath() != "/"); |
| 576 | } |
| 577 | |
| 578 | |
| 579 | int main(int argc, char **argv) { |
| 580 | try { |
| 581 | API& api = API_Helper::getSystemAPI(); |
| 582 | CommandLine cmdline; |
| 583 | Environment env; |
| 584 | Application app; |
| 585 | for (int i=0; i<argc; i++) { |
| 586 | cmdline.putArgument(argv[i]); |
| 587 | } |
| 588 | env = api.getProcessEnvironment(); |
| 589 | return app.run(cmdline, env); |
| 590 | } catch (Exception& e) { |
| 591 | std::cerr << e; |
| 592 | return 1; |
| 593 | } |
| 594 | } |