| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include "URLDecoder.h" |
| #include <decaf/lang/Character.h> |
| #include <decaf/lang/exceptions/IllegalArgumentException.h> |
| |
| using namespace std; |
| using namespace decaf; |
| using namespace decaf::lang; |
| using namespace decaf::lang::exceptions; |
| using namespace decaf::net; |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| URLDecoder::URLDecoder() { |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| std::string URLDecoder::decode( const std::string& src ) { |
| |
| std::string decoded = ""; |
| |
| for( size_t i = 0; i < src.length(); ) { |
| char c = src.at(i); |
| |
| if (c == '+') { |
| decoded += ' '; |
| } else if (c == '%') { |
| |
| do { |
| |
| if( i + 2 >= src.length() ) { |
| throw IllegalArgumentException( |
| __FILE__, __LINE__, |
| "Incomplete % sequence at: %d.", i ); |
| } |
| |
| int d1 = Character::digit( src.at(i + 1), 16 ); |
| int d2 = Character::digit( src.at(i + 2), 16 ); |
| |
| if( d1 == -1 || d2 == -1 ) { |
| throw IllegalArgumentException( |
| __FILE__, __LINE__, |
| "Invalid % sequence (%s) at: %d.", |
| src.substr( i, 3 ).c_str(), i ); |
| } |
| |
| decoded += (char)( ( d1 << 4 ) + d2 ); |
| i += 3; |
| } while( i < src.length() && src.at(i) == '%' ); |
| |
| continue; |
| } else { |
| decoded += c; |
| } |
| |
| i++; |
| } |
| |
| return decoded; |
| } |