mirror of https://github.com/JAJames/Jupiter.git
4 changed files with 151 additions and 323 deletions
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/**
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* Copyright (C) 2016 Jessica James. |
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* |
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* Permission to use, copy, modify, and/or distribute this software for any |
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* purpose with or without fee is hereby granted, provided that the above |
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* copyright notice and this permission notice appear in all copies. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY |
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* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION |
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN |
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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* |
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* Written by Jessica James <jessica.aj@outlook.com> |
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*/ |
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#if !defined _HTTP_QUERYSTRING_H_HEADER |
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#define _HTTP_QUERYSTRING_H_HEADER |
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#include <unordered_map> |
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#include <charconv> |
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/**
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* @file HTTP_QueryString.h |
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* @brief Provides parsing for HTTP Query Strings. |
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*/ |
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namespace Jupiter |
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{ |
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namespace HTTP |
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{ |
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/**
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* @brief Provides parsing for HTML form responses. |
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* Note: This is essentially the same thing as QueryString, except key/value pairs are pared into 'table'. |
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*/ |
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class HTMLFormResponse |
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{ |
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public: |
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HTMLFormResponse() = delete; |
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inline HTMLFormResponse(std::string_view query_string) : HTMLFormResponse(query_string.data(), query_string.size()) {} |
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inline HTMLFormResponse(const char *ptr, size_t str_size); |
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using TableType = std::unordered_map<std::string, std::string, jessilib::text_hash, jessilib::text_equal>; |
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#ifdef __cpp_lib_generic_unordered_lookup |
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using InKeyType = std::string_view; |
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#else // We can't use std::string_view for InKeyType until GCC 11 & clang 12, and I still want to support GCC 9
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using InKeyType = const std::string&; |
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template<typename CastT> |
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CastT tableGetCast(std::string_view in_key, const CastT &in_value) const { |
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return tableGetCast<CastT>(static_cast<std::string>(in_key), in_value); |
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} |
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std::string_view tableGet(std::string_view in_key, std::string_view in_value) const { |
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return tableGet(static_cast<std::string>(in_key), in_value); |
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} |
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#endif // __cpp_lib_generic_unordered_lookup
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template<typename CastT> |
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CastT tableGetCast(InKeyType in_key, const CastT &in_value) const { |
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CastT result = in_value; |
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auto item = table.find(in_key); |
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if (item != table.end()) { |
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std::from_chars(item->second.data(), item->second.data() + item->second.size(), result); |
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return result; |
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} |
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return result; |
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} |
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auto tableFind(InKeyType in_key) const { |
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return table.find(in_key); |
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} |
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#ifndef __cpp_lib_generic_unordered_lookup |
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auto tableFind(std::string_view in_key) const { |
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return tableFind(static_cast<std::string>(in_key)); |
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} |
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#endif // __cpp_lib_generic_unordered_lookup
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std::string_view tableGet(InKeyType in_key, std::string_view in_value) const { |
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auto item = table.find(in_key); |
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if (item != table.end()) { |
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return item->second; |
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} |
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return in_value; |
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} |
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TableType table; |
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std::string m_parsed; |
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}; |
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} |
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} |
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/** Implementation */ |
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inline Jupiter::HTTP::HTMLFormResponse::HTMLFormResponse(const char *ptr, size_t str_size) { |
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std::string_view in_view{ ptr, str_size }; |
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if (str_size < 3) { // not enough room for "%XX", therefore no escaped characters to parse
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m_parsed = in_view; |
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return; |
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} |
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m_parsed.resize(in_view.size()); |
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const char *end = ptr + str_size - 2; |
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char* buf = m_parsed.data(); |
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const char *token_start = buf; |
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int val; |
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std::string key; |
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while (ptr != end) |
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{ |
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if (*ptr == '%') |
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{ |
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if ((val = Jupiter_getHex(*++ptr)) != -1) |
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{ |
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*buf = static_cast<uint8_t>(val) << 4; |
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if ((val = Jupiter_getHex(*++ptr)) != -1) |
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*buf |= val; |
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++buf, ++ptr; |
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if (ptr > end) |
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{ |
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if (ptr == end + 1) // copy 1 remaining character
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{ |
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*buf = *ptr; |
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++buf; |
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} |
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m_parsed.erase(buf - m_parsed.data()); |
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return; |
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} |
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} |
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} |
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else if (*ptr == '&') // End of key/value, start of key
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{ |
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if (!key.empty()) { // A key was already set; end of value
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Jupiter::HTTP::HTMLFormResponse::table[key] = std::string_view(token_start, buf - token_start); |
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} |
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key = std::string_view{}; |
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++buf, ++ptr; |
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token_start = buf; |
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} |
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else if (*ptr == '=') // End of key, start of value
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{ |
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key = std::string_view(token_start, buf - token_start); |
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++buf, ++ptr; |
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token_start = buf; |
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} |
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else // Copy character
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{ |
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*buf = *ptr; |
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++buf, ++ptr; |
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} |
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} |
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// copy last 2 characters
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*buf = *ptr; |
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if (*buf == '=') // End of key, start of value
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{ |
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key = std::string_view(token_start, ++buf - token_start); |
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*buf = *++ptr; |
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Jupiter::HTTP::HTMLFormResponse::table[key] = std::string_view(ptr, 1); |
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} |
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else |
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*++buf = *++ptr; |
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if (!key.empty()) // A key was already set; end of value
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Jupiter::HTTP::HTMLFormResponse::table[key] = std::string_view(token_start, buf - token_start + 1); |
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m_parsed.erase(buf + 1 - m_parsed.data()); // TODO: double check where this +1 came from? actually just replace this
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} |
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#endif // _HTTP_QUERYSTRING_H_HEADER
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@ -1 +1 @@ |
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Subproject commit 8d3efe083522c94a0dcfd31f34a07130b824f215 |
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Subproject commit ea14492235d22bad37de6612850b2fef322ba119 |
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