623e7ab4 |
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 | } |