| 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 | #ifndef SUPHP_APPLICATION_H |
| 22 | |
| 23 | namespace suPHP { |
| 24 | class Application; |
| 25 | }; |
| 26 | |
| 27 | enum TargetMode { |
| 28 | TARGETMODE_PHP, |
| 29 | TARGETMODE_SELFEXECUTE |
| 30 | }; |
| 31 | |
| 32 | #define SUPHP_APPLICATION_H |
| 33 | |
| 34 | #include <string> |
| 35 | #include <iostream> |
| 36 | |
| 37 | #include "Environment.hpp" |
| 38 | #include "CommandLine.hpp" |
| 39 | #include "SystemException.hpp" |
| 40 | #include "SoftException.hpp" |
| 41 | #include "SecurityException.hpp" |
| 42 | #include "UserInfo.hpp" |
| 43 | #include "GroupInfo.hpp" |
| 44 | |
| 45 | namespace suPHP { |
| 46 | /** |
| 47 | * Main application class. |
| 48 | * Contains the main() function. |
| 49 | */ |
| 50 | class Application { |
| 51 | private: |
| 52 | /** |
| 53 | * Print message containing version information |
| 54 | */ |
| 55 | void printAboutMessage(); |
| 56 | |
| 57 | /** |
| 58 | * Checks wheter process has root privileges |
| 59 | * and calling user is webserver user |
| 60 | */ |
| 61 | void checkProcessPermissions(Configuration& config) |
| 62 | throw (SecurityException, LookupException); |
| 63 | |
| 64 | /** |
| 65 | * Checks scriptfile (first stage). |
| 66 | * Includes check for VHost docroot, symbollink and permissions. |
| 67 | */ |
| 68 | void checkScriptFileStage1(const std::string& scriptFilename, |
| 69 | const Configuration& config, |
| 70 | const Environment& environment) const |
| 71 | throw (SystemException, SoftException); |
| 72 | |
| 73 | /** |
| 74 | * Checks scriptfile. |
| 75 | * Includes check for paths which might be user specific |
| 76 | */ |
| 77 | void checkScriptFileStage2(const std::string& scriptFilename, |
| 78 | const Configuration& config, |
| 79 | const Environment& environment, |
| 80 | const UserInfo& targetUser, |
| 81 | const GroupInfo& targetGroup) const |
| 82 | throw (SystemException, SoftException); |
| 83 | |
| 84 | /** |
| 85 | * Determines target user and group that is to be used for script execution. |
| 86 | * Uses preprocessor macros to distinguish between modes |
| 87 | */ |
| 88 | void checkProcessPermissions(const std::string& scriptFilename, |
| 89 | const Configuration& config, |
| 90 | const Environment& environment, |
| 91 | UserInfo& targetUser, |
| 92 | GroupInfo& targetGroup) const |
| 93 | throw (SystemException, SoftException, SecurityException); |
| 94 | |
| 95 | /** |
| 96 | * Changes process permission (user and group). |
| 97 | * Uses preprocessor macros to distinguish between modes |
| 98 | */ |
| 99 | void changeProcessPermissions(const Configuration& config, |
| 100 | const UserInfo& targetUser, |
| 101 | const GroupInfo& targetGroup) const |
| 102 | throw (SystemException, SoftException, SecurityException); |
| 103 | |
| 104 | /** |
| 105 | * Prepares the environment before invoking the script |
| 106 | */ |
| 107 | Environment prepareEnvironment(const Environment& sourceEnv, |
| 108 | const Configuration& config, |
| 109 | TargetMode mode) |
| 110 | throw (KeyNotFoundException); |
| 111 | |
| 112 | /** |
| 113 | * Returns interpreter for script being executed |
| 114 | */ |
| 115 | std::string getInterpreter(const Environment& env, |
| 116 | const Configuration& config) |
| 117 | throw (SecurityException); |
| 118 | |
| 119 | /** |
| 120 | * Returns mode interpreter is using |
| 121 | */ |
| 122 | TargetMode getTargetMode(const std::string& interpreter) |
| 123 | throw (SecurityException); |
| 124 | |
| 125 | /** |
| 126 | * Runs script |
| 127 | */ |
| 128 | void executeScript(const std::string& scriptFilename, |
| 129 | const std::string& interpreter, |
| 130 | TargetMode mode, |
| 131 | const Environment& env, |
| 132 | const Configuration& config) const |
| 133 | throw (SoftException); |
| 134 | |
| 135 | /** |
| 136 | * Checks ownership and permissions for parent directories |
| 137 | */ |
| 138 | void checkParentDirectories(const File& file, |
| 139 | const UserInfo& owner, |
| 140 | const Configuration& config) const |
| 141 | throw (SoftException); |
| 142 | |
| 143 | |
| 144 | public: |
| 145 | /** |
| 146 | * Constructer |
| 147 | */ |
| 148 | Application(); |
| 149 | |
| 150 | /** |
| 151 | * Function called by the main() function |
| 152 | */ |
| 153 | int run(CommandLine& cmdline, Environment& env); |
| 154 | }; |
| 155 | }; |
| 156 | |
| 157 | int main(int argc, char **argv); |
| 158 | |
| 159 | #endif // SUPHP_APPLICATION_H |