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94 lines
2.0 KiB
C++
94 lines
2.0 KiB
C++
#ifdef USE_ESP_IDF
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#include <memory>
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#include "esphome/core/log.h"
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#include "esphome/core/helpers.h"
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#include "http_parser.h"
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#include "utils.h"
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namespace esphome {
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namespace web_server_idf {
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static const char *const TAG = "web_server_idf_utils";
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void url_decode(char *str) {
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char *ptr = str, buf;
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for (; *str; str++, ptr++) {
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if (*str == '%') {
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str++;
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if (parse_hex(str, 2, reinterpret_cast<uint8_t *>(&buf), 1) == 2) {
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*ptr = buf;
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str++;
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} else {
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str--;
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*ptr = *str;
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}
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} else if (*str == '+') {
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*ptr = ' ';
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} else {
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*ptr = *str;
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}
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}
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*ptr = *str;
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}
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bool request_has_header(httpd_req_t *req, const char *name) { return httpd_req_get_hdr_value_len(req, name); }
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optional<std::string> request_get_header(httpd_req_t *req, const char *name) {
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size_t len = httpd_req_get_hdr_value_len(req, name);
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if (len == 0) {
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return {};
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}
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std::string str;
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str.resize(len);
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auto res = httpd_req_get_hdr_value_str(req, name, &str[0], len + 1);
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if (res != ESP_OK) {
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return {};
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}
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return {str};
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}
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optional<std::string> request_get_url_query(httpd_req_t *req) {
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auto len = httpd_req_get_url_query_len(req);
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if (len == 0) {
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return {};
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}
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std::string str;
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str.resize(len);
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auto res = httpd_req_get_url_query_str(req, &str[0], len + 1);
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if (res != ESP_OK) {
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ESP_LOGW(TAG, "Can't get query for request: %s", esp_err_to_name(res));
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return {};
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}
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return {str};
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}
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optional<std::string> query_key_value(const std::string &query_url, const std::string &key) {
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if (query_url.empty()) {
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return {};
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}
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auto val = std::unique_ptr<char[]>(new char[query_url.size()]);
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if (!val) {
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ESP_LOGE(TAG, "Not enough memory to the query key value");
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return {};
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}
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if (httpd_query_key_value(query_url.c_str(), key.c_str(), val.get(), query_url.size()) != ESP_OK) {
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return {};
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}
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url_decode(val.get());
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return {val.get()};
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}
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} // namespace web_server_idf
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} // namespace esphome
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#endif // USE_ESP_IDF
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