| 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 <string> |
| 22 | #include <fstream> |
| 23 | #include <sstream> |
| 24 | #include <vector> |
| 25 | |
| 26 | #include "KeyNotFoundException.hpp" |
| 27 | |
| 28 | #include "IniFile.hpp" |
| 29 | |
| 30 | using namespace suPHP; |
| 31 | |
| 32 | const IniSection& suPHP::IniFile::getSection(const std::string& name) const |
| 33 | throw (KeyNotFoundException) { |
| 34 | if (this->sections.find(name) != this->sections.end()) { |
| 35 | return this->sections.find(name)->second; |
| 36 | } else { |
| 37 | throw KeyNotFoundException("Section " + name + " not found", |
| 38 | __FILE__, __LINE__); |
| 39 | } |
| 40 | } |
| 41 | |
| 42 | bool suPHP::IniFile::hasSection(const std::string& name) const { |
| 43 | if (this->sections.find(name) != this->sections.end()) { |
| 44 | return true; |
| 45 | } else { |
| 46 | return false; |
| 47 | } |
| 48 | |
| 49 | } |
| 50 | |
| 51 | const IniSection& suPHP::IniFile::operator[](const std::string& name) const |
| 52 | throw (KeyNotFoundException) { |
| 53 | return this->getSection(name); |
| 54 | } |
| 55 | |
| 56 | |
| 57 | void suPHP::IniFile::parse(const File& file) throw (IOException, ParsingException) { |
| 58 | SmartPtr<std::ifstream> is = file.getInputStream(); |
| 59 | IniSection *current_section = NULL; |
| 60 | while (!is->eof() && !is->bad() && !is->fail()) { |
| 61 | std::string line; |
| 62 | std::string tstr; |
| 63 | char dummy; |
| 64 | int startpos = 0; |
| 65 | int endpos = 0; |
| 66 | |
| 67 | // Read line from file |
| 68 | getline(*is, line); |
| 69 | |
| 70 | tstr = line; |
| 71 | |
| 72 | // Find first char not being space or tab |
| 73 | startpos = tstr.find_first_not_of(" \t"); |
| 74 | // Find last char not being space or tab |
| 75 | endpos = tstr.find_last_not_of(" \t"); |
| 76 | |
| 77 | // Skip empty line, only containing whitespace |
| 78 | if (startpos == std::string::npos) |
| 79 | continue; |
| 80 | |
| 81 | // Get trimmed string |
| 82 | tstr = tstr.substr(startpos, endpos - startpos + 1); |
| 83 | |
| 84 | // Is line a comment (starting with ";")? |
| 85 | if (tstr[0] == ';') { |
| 86 | // Comments are not interessting => skip |
| 87 | continue; |
| 88 | |
| 89 | // Is line a section mark ("[section]")? |
| 90 | } else if (tstr[0] == '[' && tstr[tstr.size()-1] == ']') { |
| 91 | // Extract name of section |
| 92 | std::string name = tstr.substr(1, tstr.size() - 2); |
| 93 | // If section is not yet existing, create it |
| 94 | if (!this->hasSection(name)) { |
| 95 | std::pair<std::string, IniSection> p; |
| 96 | IniSection sect; |
| 97 | p.first = name; |
| 98 | p.second = sect; |
| 99 | this->sections.insert(p); |
| 100 | } |
| 101 | // Set current section |
| 102 | current_section = &(this->sections.find(name)->second); |
| 103 | |
| 104 | // Is the line a key-value pair? |
| 105 | } else if (tstr.find_first_of('=') != std::string::npos) { |
| 106 | std::string name; |
| 107 | std::vector<std::string> values; |
| 108 | bool append_mode = false; |
| 109 | |
| 110 | int eqpos = 0; |
| 111 | |
| 112 | // Check wheter we already have a section |
| 113 | if (current_section == NULL) { |
| 114 | throw ParsingException("Option line \"" + tstr + |
| 115 | "\" before first section", |
| 116 | __FILE__, __LINE__); |
| 117 | } |
| 118 | |
| 119 | // Extract name |
| 120 | eqpos = tstr.find_first_of('='); |
| 121 | if (eqpos == std::string::npos || eqpos < 1 || eqpos == tstr.length()-1) { |
| 122 | throw ParsingException("Malformed line: " + tstr, __FILE__, __LINE__); |
| 123 | } |
| 124 | if (tstr[eqpos-1] == '+') { |
| 125 | append_mode = true; |
| 126 | name = tstr.substr(0, eqpos-1); |
| 127 | } else { |
| 128 | name = tstr.substr(0, eqpos); |
| 129 | } |
| 130 | |
| 131 | int temppos; |
| 132 | temppos = name.find_first_not_of(" \t"); |
| 133 | if (temppos == std::string::npos) { |
| 134 | throw ParsingException("Malformed line: " + tstr, __FILE__, __LINE__); |
| 135 | } |
| 136 | name = name.substr(0, name.find_last_not_of(" \t") + 1); |
| 137 | |
| 138 | bool in_quotes = false; |
| 139 | bool last_was_backslash = false; |
| 140 | int token_start = eqpos + 1; |
| 141 | |
| 142 | for (int i=eqpos+1; i<tstr.length(); i++) { |
| 143 | bool current_is_backslash = false; |
| 144 | if (tstr[i] == '"') { |
| 145 | if (!last_was_backslash) { |
| 146 | in_quotes = !in_quotes; |
| 147 | } |
| 148 | } else if (tstr[i] == '\\') { |
| 149 | if (!last_was_backslash) { |
| 150 | current_is_backslash = true; |
| 151 | } |
| 152 | } else if (tstr[i] == ':') { |
| 153 | if (!in_quotes && !last_was_backslash) { |
| 154 | // Save token and begin new one |
| 155 | std::string token = tstr.substr(token_start, i - token_start); |
| 156 | try { |
| 157 | token = parseValue(token); |
| 158 | } catch (ParsingException e) { |
| 159 | throw ParsingException("Malformed line: " + tstr, __FILE__, __LINE__); |
| 160 | } |
| 161 | if (token.length() == 0) { |
| 162 | throw ParsingException("Malformed line: " + tstr, __FILE__, __LINE__); |
| 163 | } |
| 164 | values.push_back(token); |
| 165 | token_start = i + 1; |
| 166 | } |
| 167 | } |
| 168 | if (i == tstr.length() - 1) { |
| 169 | if (in_quotes) { |
| 170 | throw ParsingException("Unended quotes in line: " + tstr, __FILE__, __LINE__); |
| 171 | } else if (last_was_backslash) { |
| 172 | throw ParsingException("Multiline values are not supported in line: " + tstr, __FILE__, __LINE__); |
| 173 | } |
| 174 | std::string token = tstr.substr(token_start, i + 1 - token_start); |
| 175 | try { |
| 176 | token = parseValue(token); |
| 177 | } catch (ParsingException e) { |
| 178 | throw ParsingException("Malformed line: " + tstr, __FILE__, __LINE__); |
| 179 | } |
| 180 | if (token.length() == 0) { |
| 181 | throw ParsingException("Malformed line: " + tstr, __FILE__, __LINE__); |
| 182 | } |
| 183 | values.push_back(token); |
| 184 | } |
| 185 | last_was_backslash = current_is_backslash; |
| 186 | } |
| 187 | |
| 188 | if (!append_mode) { |
| 189 | current_section->removeValues(name); |
| 190 | } |
| 191 | for (std::vector<std::string>::iterator i = values.begin(); i != values.end(); i++) { |
| 192 | current_section->putValue(name, *i); |
| 193 | } |
| 194 | |
| 195 | // Line is something we do not know |
| 196 | } else { |
| 197 | throw ParsingException("Malformed line \"" + tstr + "\"", |
| 198 | __FILE__, __LINE__); |
| 199 | } |
| 200 | } |
| 201 | is->close(); |
| 202 | } |
| 203 | |
| 204 | std::string suPHP::IniFile::parseValue(const std::string& value) const throw (ParsingException) { |
| 205 | bool in_quotes = false; |
| 206 | bool last_was_backslash = false; |
| 207 | std::string tempvalue; |
| 208 | std::string output; |
| 209 | |
| 210 | int startpos = value.find_first_not_of(" \t"); |
| 211 | int endpos = value.find_last_not_of(" \t"); |
| 212 | if (startpos == std::string::npos) { |
| 213 | return ""; |
| 214 | } |
| 215 | if (endpos == std::string::npos) { |
| 216 | tempvalue = value; |
| 217 | } else { |
| 218 | tempvalue = value.substr(startpos, endpos - startpos + 1); |
| 219 | } |
| 220 | |
| 221 | for (int i=0; i<value.length(); i++) { |
| 222 | bool current_is_backslash = false; |
| 223 | |
| 224 | if (tempvalue[i] == '"') { |
| 225 | if (last_was_backslash) { |
| 226 | output.append("\""); |
| 227 | } else { |
| 228 | if (!in_quotes && i != 0) { |
| 229 | throw ParsingException("Content preceding quoted content", __FILE__, __LINE__); |
| 230 | } |
| 231 | if (in_quotes && i != tempvalue.length() - 1) { |
| 232 | throw ParsingException("Content following quoted content", __FILE__, __LINE__); |
| 233 | } |
| 234 | in_quotes = !in_quotes; |
| 235 | } |
| 236 | } else if (tempvalue[i] == '\\') { |
| 237 | if (last_was_backslash) { |
| 238 | output.append("\\"); |
| 239 | } else { |
| 240 | current_is_backslash = true; |
| 241 | } |
| 242 | } else if (tempvalue[i] == ':') { |
| 243 | output.append(":"); |
| 244 | } else { |
| 245 | if (last_was_backslash) { |
| 246 | throw ParsingException("Illegal character after backslash", __FILE__, __LINE__); |
| 247 | } |
| 248 | output.append(tempvalue.substr(i, 1)); |
| 249 | } |
| 250 | |
| 251 | last_was_backslash = current_is_backslash; |
| 252 | } |
| 253 | |
| 254 | return output; |
| 255 | } |