-rw-r--r-- | lib/util.cc | 22 |
1 files changed, 12 insertions, 10 deletions
diff --git a/lib/util.cc b/lib/util.cc index 69d37b5..83f0eef 100644 --- a/lib/util.cc +++ b/lib/util.cc | |||
@@ -156,79 +156,81 @@ namespace opkele { | |||
156 | long string_to_long(const string& s) { | 156 | long string_to_long(const string& s) { |
157 | char *endptr = 0; | 157 | char *endptr = 0; |
158 | long rv = strtol(s.c_str(),&endptr,10); | 158 | long rv = strtol(s.c_str(),&endptr,10); |
159 | if((!endptr) || endptr==s.c_str()) | 159 | if((!endptr) || endptr==s.c_str()) |
160 | throw failed_conversion(OPKELE_CP_ "failed to strtol()"); | 160 | throw failed_conversion(OPKELE_CP_ "failed to strtol()"); |
161 | return rv; | 161 | return rv; |
162 | } | 162 | } |
163 | 163 | ||
164 | /* | 164 | /* |
165 | * Normalize URL according to the rules, described in rfc 3986, section 6 | 165 | * Normalize URL according to the rules, described in rfc 3986, section 6 |
166 | * | 166 | * |
167 | * - uppercase hext triplets (e.g. %ab -> %AB) | 167 | * - uppercase hext triplets (e.g. %ab -> %AB) |
168 | * - lowercase scheme and host | 168 | * - lowercase scheme and host |
169 | * - decode %-encoded characters, specified as unreserved in rfc 3986, section 2.3, | 169 | * - decode %-encoded characters, specified as unreserved in rfc 3986, section 2.3, |
170 | * that is - [:alpha:][:digit:]._~- | 170 | * that is - [:alpha:][:digit:]._~- |
171 | * - remove dot segments | 171 | * - remove dot segments |
172 | * - remove empty and default ports | 172 | * - remove empty and default ports |
173 | * - if there's no path component, add '/' | 173 | * - if there's no path component, add '/' |
174 | */ | 174 | */ |
175 | string rfc_3986_normalize_uri(const string& uri) { | 175 | string rfc_3986_normalize_uri(const string& uri) { |
176 | static const char *whitespace = " \t\r\n"; | 176 | static const char *whitespace = " \t\r\n"; |
177 | string rv; | 177 | string rv; |
178 | string::size_type ns = uri.find_first_not_of(whitespace); | 178 | string::size_type ns = uri.find_first_not_of(whitespace); |
179 | if(ns==string::npos) | 179 | if(ns==string::npos) |
180 | throw bad_input(OPKELE_CP_ "Can't normalize empty URI"); | 180 | throw bad_input(OPKELE_CP_ "Can't normalize empty URI"); |
181 | string::size_type colon = uri.find(':',ns); | 181 | string::size_type colon = uri.find(':',ns); |
182 | if(colon==string::npos) | 182 | if(colon==string::npos) |
183 | throw bad_input(OPKELE_CP_ "No scheme specified in URI"); | 183 | throw bad_input(OPKELE_CP_ "No scheme specified in URI"); |
184 | transform( | 184 | transform( |
185 | uri.begin()+ns, uri.begin()+colon+1, | 185 | uri.begin()+ns, uri.begin()+colon+1, |
186 | back_inserter(rv), ::tolower ); | 186 | back_inserter(rv), ::tolower ); |
187 | bool s; | 187 | bool s; |
188 | if(rv=="http:") | ||
189 | s = false; | ||
190 | else if(rv=="https:") | ||
191 | s = true; | ||
192 | #ifndef NDEBUG | ||
193 | else if(rv=="file:") | ||
194 | s = false; | ||
195 | #endif /* XXX: or try to make tests work some other way */ | ||
196 | else | ||
197 | throw not_implemented(OPKELE_CP_ "Only http(s) URIs can be normalized here"); | ||
198 | string::size_type ul = uri.find_last_not_of(whitespace)+1; | 188 | string::size_type ul = uri.find_last_not_of(whitespace)+1; |
199 | if(ul <= (colon+3)) | 189 | if(ul <= (colon+3)) |
200 | throw bad_input(OPKELE_CP_ "Unexpected end of URI being normalized encountered"); | 190 | throw bad_input(OPKELE_CP_ "Unexpected end of URI being normalized encountered"); |
201 | if(uri[colon+1]!='/' || uri[colon+2]!='/') | 191 | if(uri[colon+1]!='/' || uri[colon+2]!='/') |
202 | throw bad_input(OPKELE_CP_ "Unexpected input in URI being normalized after scheme component"); | 192 | throw bad_input(OPKELE_CP_ "Unexpected input in URI being normalized after scheme component"); |
193 | if(rv=="http:") | ||
194 | s = false; | ||
195 | else if(rv=="https:") | ||
196 | s = true; | ||
197 | else{ | ||
198 | /* TODO: support more schemes. | ||
199 | * e.g. xri. How do we normalize | ||
200 | * xri? | ||
201 | */ | ||
202 | rv.append(uri,colon+1,ul-colon-1); | ||
203 | return rv; | ||
204 | } | ||
203 | rv += "//"; | 205 | rv += "//"; |
204 | string::size_type interesting = uri.find_first_of(":/#?",colon+3); | 206 | string::size_type interesting = uri.find_first_of(":/#?",colon+3); |
205 | if(interesting==string::npos) { | 207 | if(interesting==string::npos) { |
206 | transform( | 208 | transform( |
207 | uri.begin()+colon+3,uri.begin()+ul, | 209 | uri.begin()+colon+3,uri.begin()+ul, |
208 | back_inserter(rv), ::tolower ); | 210 | back_inserter(rv), ::tolower ); |
209 | rv += '/'; return rv; | 211 | rv += '/'; return rv; |
210 | } | 212 | } |
211 | transform( | 213 | transform( |
212 | uri.begin()+colon+3,uri.begin()+interesting, | 214 | uri.begin()+colon+3,uri.begin()+interesting, |
213 | back_inserter(rv), ::tolower ); | 215 | back_inserter(rv), ::tolower ); |
214 | bool qf = false; | 216 | bool qf = false; |
215 | char ic = uri[interesting]; | 217 | char ic = uri[interesting]; |
216 | if(ic==':') { | 218 | if(ic==':') { |
217 | string::size_type ni = uri.find_first_of("/#?%",interesting+1); | 219 | string::size_type ni = uri.find_first_of("/#?%",interesting+1); |
218 | const char *nptr = uri.data()+interesting+1; | 220 | const char *nptr = uri.data()+interesting+1; |
219 | char *eptr = 0; | 221 | char *eptr = 0; |
220 | long port = strtol(nptr,&eptr,10); | 222 | long port = strtol(nptr,&eptr,10); |
221 | if( (port>0) && (port<65535) && port!=(s?443:80) ) { | 223 | if( (port>0) && (port<65535) && port!=(s?443:80) ) { |
222 | char tmp[6]; | 224 | char tmp[6]; |
223 | snprintf(tmp,sizeof(tmp),"%ld",port); | 225 | snprintf(tmp,sizeof(tmp),"%ld",port); |
224 | rv += ':'; rv += tmp; | 226 | rv += ':'; rv += tmp; |
225 | } | 227 | } |
226 | if(ni==string::npos) { | 228 | if(ni==string::npos) { |
227 | rv += '/'; return rv; | 229 | rv += '/'; return rv; |
228 | } | 230 | } |
229 | interesting = ni; | 231 | interesting = ni; |
230 | }else if(ic!='/') { | 232 | }else if(ic!='/') { |
231 | rv += '/'; rv += ic; | 233 | rv += '/'; rv += ic; |
232 | qf = true; | 234 | qf = true; |
233 | ++interesting; | 235 | ++interesting; |
234 | } | 236 | } |