76 lines
2.2 KiB
C++
76 lines
2.2 KiB
C++
#include <string>
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#include <stdexcept>
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#include "settings.h"
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static void set_settings(std::string_view str, const char* delimiter, UserSettings& settings);
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static inline bool lowercase_compare(std::string_view lhs, std::string_view rhs);
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static bool parse_bool(std::string_view value);
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void UserSettings::set(std::string_view key, std::string_view value) {
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if (key == "auto-open-cw") {
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this->auto_open_cw = parse_bool(value);
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}
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}
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void UserSettings::load_from_cookies(const httplib::Request& req) {
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for (const auto& i : req.headers) {
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if (lowercase_compare(i.first, "cookie")) {
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set_settings(i.second, "; ", *this);
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}
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}
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}
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static void set_settings(std::string_view str, const char* delimiter, UserSettings& settings) {
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using namespace std::string_literals;
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size_t offset = 0;
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size_t new_offset = 0;
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size_t delimiter_len = strlen(delimiter);
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while (offset < str.size()) {
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new_offset = str.find(delimiter, offset);
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std::string_view item = str.substr(offset, new_offset != std::string_view::npos ? new_offset - offset : std::string_view::npos);
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size_t equal_offset = item.find('=');
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if (equal_offset == std::string_view::npos) {
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throw std::invalid_argument("invalid user setting item: "s + std::string(item));
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}
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settings.set(item.substr(0, equal_offset), item.substr(equal_offset + 1));
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if (new_offset == std::string_view::npos) {
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break;
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}
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offset = new_offset + delimiter_len;
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}
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}
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static inline bool lowercase_compare(std::string_view lhs, std::string_view rhs) {
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if (lhs.size() != rhs.size()) {
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return false;
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}
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auto lower = [](char c) {
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return c >= 'A' && c <= 'Z' ? c - 'A' + 'a' : c;
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};
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for (size_t i = 0; i < lhs.size(); i++) {
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if (lower(lhs[i]) != lower(rhs[i])) {
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return false;
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}
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}
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return true;
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}
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static bool parse_bool(std::string_view value) {
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using namespace std::string_literals;
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if (value == "true") {
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return true;
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} else if (value == "false") {
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return false;
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} else {
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throw std::invalid_argument("unknown boolean value: "s + std::string(value));
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}
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}
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