| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | // | ||
| 2 | // Copyright (c) 2025 Vinnie Falco (vinnie dot falco at gmail dot com) | ||
| 3 | // | ||
| 4 | // Distributed under the Boost Software License, Version 1.0. (See accompanying | ||
| 5 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | ||
| 6 | // | ||
| 7 | // Official repository: https://github.com/cppalliance/http | ||
| 8 | // | ||
| 9 | |||
| 10 | #include <boost/http/server/encode_url.hpp> | ||
| 11 | |||
| 12 | namespace boost { | ||
| 13 | namespace http { | ||
| 14 | |||
| 15 | namespace { | ||
| 16 | |||
| 17 | // Check if character needs encoding | ||
| 18 | // Unreserved + reserved chars that are allowed in URLs | ||
| 19 | bool | ||
| 20 | ✗ | is_safe( char c ) noexcept | |
| 21 | { | ||
| 22 | // Unreserved: A-Z a-z 0-9 - _ . ~ | ||
| 23 | ✗ | if( ( c >= 'A' && c <= 'Z' ) || | |
| 24 | ✗ | ( c >= 'a' && c <= 'z' ) || | |
| 25 | ✗ | ( c >= '0' && c <= '9' ) || | |
| 26 | ✗ | c == '-' || c == '_' || c == '.' || c == '~' ) | |
| 27 | ✗ | return true; | |
| 28 | |||
| 29 | // Reserved chars allowed in URLs: ! # $ & ' ( ) * + , / : ; = ? @ | ||
| 30 | ✗ | switch( c ) | |
| 31 | { | ||
| 32 | ✗ | case '!': | |
| 33 | case '#': | ||
| 34 | case '$': | ||
| 35 | case '&': | ||
| 36 | case '\'': | ||
| 37 | case '(': | ||
| 38 | case ')': | ||
| 39 | case '*': | ||
| 40 | case '+': | ||
| 41 | case ',': | ||
| 42 | case '/': | ||
| 43 | case ':': | ||
| 44 | case ';': | ||
| 45 | case '=': | ||
| 46 | case '?': | ||
| 47 | case '@': | ||
| 48 | ✗ | return true; | |
| 49 | ✗ | default: | |
| 50 | ✗ | return false; | |
| 51 | } | ||
| 52 | } | ||
| 53 | |||
| 54 | constexpr char hex_chars[] = "0123456789ABCDEF"; | ||
| 55 | |||
| 56 | } // (anon) | ||
| 57 | |||
| 58 | std::string | ||
| 59 | ✗ | encode_url( core::string_view url ) | |
| 60 | { | ||
| 61 | ✗ | std::string result; | |
| 62 | ✗ | result.reserve( url.size() ); | |
| 63 | |||
| 64 | ✗ | for( unsigned char c : url ) | |
| 65 | { | ||
| 66 | ✗ | if( is_safe( static_cast<char>( c ) ) ) | |
| 67 | { | ||
| 68 | ✗ | result.push_back( static_cast<char>( c ) ); | |
| 69 | } | ||
| 70 | else | ||
| 71 | { | ||
| 72 | ✗ | result.push_back( '%' ); | |
| 73 | ✗ | result.push_back( hex_chars[c >> 4] ); | |
| 74 | ✗ | result.push_back( hex_chars[c & 0x0F] ); | |
| 75 | } | ||
| 76 | } | ||
| 77 | |||
| 78 | ✗ | return result; | |
| 79 | ✗ | } | |
| 80 | |||
| 81 | } // http | ||
| 82 | } // boost | ||
| 83 |