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https://github.com/espressif/esp-idf.git
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a4afeed209
idf_http_server_test/client.py: Update test script with new error message
626 lines
19 KiB
C
626 lines
19 KiB
C
/*
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* SPDX-FileCopyrightText: 2018-2021 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <errno.h>
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#include <esp_log.h>
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#include <esp_err.h>
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#include <esp_http_server.h>
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#include "esp_httpd_priv.h"
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static const char *TAG = "httpd_txrx";
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esp_err_t httpd_sess_set_send_override(httpd_handle_t hd, int sockfd, httpd_send_func_t send_func)
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{
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struct sock_db *sess = httpd_sess_get(hd, sockfd);
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if (!sess) {
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return ESP_ERR_INVALID_ARG;
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}
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sess->send_fn = send_func;
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return ESP_OK;
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}
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esp_err_t httpd_sess_set_recv_override(httpd_handle_t hd, int sockfd, httpd_recv_func_t recv_func)
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{
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struct sock_db *sess = httpd_sess_get(hd, sockfd);
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if (!sess) {
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return ESP_ERR_INVALID_ARG;
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}
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sess->recv_fn = recv_func;
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return ESP_OK;
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}
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esp_err_t httpd_sess_set_pending_override(httpd_handle_t hd, int sockfd, httpd_pending_func_t pending_func)
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{
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struct sock_db *sess = httpd_sess_get(hd, sockfd);
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if (!sess) {
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return ESP_ERR_INVALID_ARG;
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}
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sess->pending_fn = pending_func;
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return ESP_OK;
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}
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int httpd_send(httpd_req_t *r, const char *buf, size_t buf_len)
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{
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if (r == NULL || buf == NULL) {
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return HTTPD_SOCK_ERR_INVALID;
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}
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if (!httpd_valid_req(r)) {
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return HTTPD_SOCK_ERR_INVALID;
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}
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struct httpd_req_aux *ra = r->aux;
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int ret = ra->sd->send_fn(ra->sd->handle, ra->sd->fd, buf, buf_len, 0);
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if (ret < 0) {
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ESP_LOGD(TAG, LOG_FMT("error in send_fn"));
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return ret;
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}
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return ret;
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}
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static esp_err_t httpd_send_all(httpd_req_t *r, const char *buf, size_t buf_len)
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{
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struct httpd_req_aux *ra = r->aux;
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int ret;
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while (buf_len > 0) {
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ret = ra->sd->send_fn(ra->sd->handle, ra->sd->fd, buf, buf_len, 0);
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if (ret < 0) {
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ESP_LOGD(TAG, LOG_FMT("error in send_fn"));
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return ESP_FAIL;
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}
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ESP_LOGD(TAG, LOG_FMT("sent = %d"), ret);
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buf += ret;
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buf_len -= ret;
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}
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return ESP_OK;
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}
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static size_t httpd_recv_pending(httpd_req_t *r, char *buf, size_t buf_len)
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{
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struct httpd_req_aux *ra = r->aux;
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size_t offset = sizeof(ra->sd->pending_data) - ra->sd->pending_len;
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/* buf_len must not be greater than remaining_len */
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buf_len = MIN(ra->sd->pending_len, buf_len);
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memcpy(buf, ra->sd->pending_data + offset, buf_len);
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ra->sd->pending_len -= buf_len;
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return buf_len;
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}
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int httpd_recv_with_opt(httpd_req_t *r, char *buf, size_t buf_len, bool halt_after_pending)
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{
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ESP_LOGD(TAG, LOG_FMT("requested length = %d"), buf_len);
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size_t pending_len = 0;
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struct httpd_req_aux *ra = r->aux;
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/* First fetch pending data from local buffer */
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if (ra->sd->pending_len > 0) {
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ESP_LOGD(TAG, LOG_FMT("pending length = %d"), ra->sd->pending_len);
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pending_len = httpd_recv_pending(r, buf, buf_len);
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buf += pending_len;
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buf_len -= pending_len;
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/* If buffer filled then no need to recv.
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* If asked to halt after receiving pending data then
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* return with received length */
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if (!buf_len || halt_after_pending) {
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return pending_len;
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}
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}
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/* Receive data of remaining length */
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int ret = ra->sd->recv_fn(ra->sd->handle, ra->sd->fd, buf, buf_len, 0);
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if (ret < 0) {
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ESP_LOGD(TAG, LOG_FMT("error in recv_fn"));
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if ((ret == HTTPD_SOCK_ERR_TIMEOUT) && (pending_len != 0)) {
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/* If recv() timeout occurred, but pending data is
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* present, return length of pending data.
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* This behavior is similar to that of socket recv()
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* function, which, in case has only partially read the
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* requested length, due to timeout, returns with read
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* length, rather than error */
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return pending_len;
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}
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return ret;
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}
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ESP_LOGD(TAG, LOG_FMT("received length = %d"), ret + pending_len);
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return ret + pending_len;
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}
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int httpd_recv(httpd_req_t *r, char *buf, size_t buf_len)
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{
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return httpd_recv_with_opt(r, buf, buf_len, false);
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}
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size_t httpd_unrecv(struct httpd_req *r, const char *buf, size_t buf_len)
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{
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struct httpd_req_aux *ra = r->aux;
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/* Truncate if external buf_len is greater than pending_data buffer size */
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ra->sd->pending_len = MIN(sizeof(ra->sd->pending_data), buf_len);
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/* Copy data into internal pending_data buffer with the exact offset
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* such that it is right aligned inside the buffer */
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size_t offset = sizeof(ra->sd->pending_data) - ra->sd->pending_len;
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memcpy(ra->sd->pending_data + offset, buf, ra->sd->pending_len);
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ESP_LOGD(TAG, LOG_FMT("length = %d"), ra->sd->pending_len);
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return ra->sd->pending_len;
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}
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/**
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* This API appends an additional header field-value pair in the HTTP response.
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* But the header isn't sent out until any of the send APIs is executed.
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*/
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esp_err_t httpd_resp_set_hdr(httpd_req_t *r, const char *field, const char *value)
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{
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if (r == NULL || field == NULL || value == NULL) {
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return ESP_ERR_INVALID_ARG;
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}
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if (!httpd_valid_req(r)) {
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return ESP_ERR_HTTPD_INVALID_REQ;
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}
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struct httpd_req_aux *ra = r->aux;
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struct httpd_data *hd = (struct httpd_data *) r->handle;
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/* Number of additional headers is limited */
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if (ra->resp_hdrs_count >= hd->config.max_resp_headers) {
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return ESP_ERR_HTTPD_RESP_HDR;
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}
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/* Assign header field-value pair */
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ra->resp_hdrs[ra->resp_hdrs_count].field = field;
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ra->resp_hdrs[ra->resp_hdrs_count].value = value;
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ra->resp_hdrs_count++;
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ESP_LOGD(TAG, LOG_FMT("new header = %s: %s"), field, value);
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return ESP_OK;
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}
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/**
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* This API sets the status of the HTTP response to the value specified.
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* But the status isn't sent out until any of the send APIs is executed.
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*/
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esp_err_t httpd_resp_set_status(httpd_req_t *r, const char *status)
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{
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if (r == NULL || status == NULL) {
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return ESP_ERR_INVALID_ARG;
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}
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if (!httpd_valid_req(r)) {
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return ESP_ERR_HTTPD_INVALID_REQ;
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}
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struct httpd_req_aux *ra = r->aux;
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ra->status = (char *)status;
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return ESP_OK;
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}
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/**
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* This API sets the method/type of the HTTP response to the value specified.
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* But the method isn't sent out until any of the send APIs is executed.
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*/
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esp_err_t httpd_resp_set_type(httpd_req_t *r, const char *type)
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{
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if (r == NULL || type == NULL) {
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return ESP_ERR_INVALID_ARG;
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}
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if (!httpd_valid_req(r)) {
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return ESP_ERR_HTTPD_INVALID_REQ;
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}
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struct httpd_req_aux *ra = r->aux;
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ra->content_type = (char *)type;
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return ESP_OK;
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}
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esp_err_t httpd_resp_send(httpd_req_t *r, const char *buf, ssize_t buf_len)
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{
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if (r == NULL) {
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return ESP_ERR_INVALID_ARG;
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}
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if (!httpd_valid_req(r)) {
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return ESP_ERR_HTTPD_INVALID_REQ;
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}
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struct httpd_req_aux *ra = r->aux;
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const char *httpd_hdr_str = "HTTP/1.1 %s\r\nContent-Type: %s\r\nContent-Length: %d\r\n";
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const char *colon_separator = ": ";
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const char *cr_lf_seperator = "\r\n";
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if (buf_len == HTTPD_RESP_USE_STRLEN) {
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buf_len = strlen(buf);
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}
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/* Request headers are no longer available */
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ra->req_hdrs_count = 0;
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/* Size of essential headers is limited by scratch buffer size */
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if (snprintf(ra->scratch, sizeof(ra->scratch), httpd_hdr_str,
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ra->status, ra->content_type, buf_len) >= sizeof(ra->scratch)) {
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return ESP_ERR_HTTPD_RESP_HDR;
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}
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/* Sending essential headers */
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if (httpd_send_all(r, ra->scratch, strlen(ra->scratch)) != ESP_OK) {
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return ESP_ERR_HTTPD_RESP_SEND;
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}
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/* Sending additional headers based on set_header */
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for (unsigned i = 0; i < ra->resp_hdrs_count; i++) {
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/* Send header field */
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if (httpd_send_all(r, ra->resp_hdrs[i].field, strlen(ra->resp_hdrs[i].field)) != ESP_OK) {
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return ESP_ERR_HTTPD_RESP_SEND;
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}
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/* Send ': ' */
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if (httpd_send_all(r, colon_separator, strlen(colon_separator)) != ESP_OK) {
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return ESP_ERR_HTTPD_RESP_SEND;
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}
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/* Send header value */
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if (httpd_send_all(r, ra->resp_hdrs[i].value, strlen(ra->resp_hdrs[i].value)) != ESP_OK) {
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return ESP_ERR_HTTPD_RESP_SEND;
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}
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/* Send CR + LF */
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if (httpd_send_all(r, cr_lf_seperator, strlen(cr_lf_seperator)) != ESP_OK) {
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return ESP_ERR_HTTPD_RESP_SEND;
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}
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}
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/* End header section */
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if (httpd_send_all(r, cr_lf_seperator, strlen(cr_lf_seperator)) != ESP_OK) {
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return ESP_ERR_HTTPD_RESP_SEND;
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}
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/* Sending content */
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if (buf && buf_len) {
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if (httpd_send_all(r, buf, buf_len) != ESP_OK) {
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return ESP_ERR_HTTPD_RESP_SEND;
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}
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}
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return ESP_OK;
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}
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esp_err_t httpd_resp_send_chunk(httpd_req_t *r, const char *buf, ssize_t buf_len)
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{
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if (r == NULL) {
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return ESP_ERR_INVALID_ARG;
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}
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if (!httpd_valid_req(r)) {
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return ESP_ERR_HTTPD_INVALID_REQ;
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}
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if (buf_len == HTTPD_RESP_USE_STRLEN) {
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buf_len = strlen(buf);
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}
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struct httpd_req_aux *ra = r->aux;
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const char *httpd_chunked_hdr_str = "HTTP/1.1 %s\r\nContent-Type: %s\r\nTransfer-Encoding: chunked\r\n";
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const char *colon_separator = ": ";
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const char *cr_lf_seperator = "\r\n";
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/* Request headers are no longer available */
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ra->req_hdrs_count = 0;
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if (!ra->first_chunk_sent) {
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/* Size of essential headers is limited by scratch buffer size */
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if (snprintf(ra->scratch, sizeof(ra->scratch), httpd_chunked_hdr_str,
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ra->status, ra->content_type) >= sizeof(ra->scratch)) {
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return ESP_ERR_HTTPD_RESP_HDR;
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}
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/* Sending essential headers */
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if (httpd_send_all(r, ra->scratch, strlen(ra->scratch)) != ESP_OK) {
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return ESP_ERR_HTTPD_RESP_SEND;
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}
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/* Sending additional headers based on set_header */
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for (unsigned i = 0; i < ra->resp_hdrs_count; i++) {
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/* Send header field */
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if (httpd_send_all(r, ra->resp_hdrs[i].field, strlen(ra->resp_hdrs[i].field)) != ESP_OK) {
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return ESP_ERR_HTTPD_RESP_SEND;
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}
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/* Send ': ' */
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if (httpd_send_all(r, colon_separator, strlen(colon_separator)) != ESP_OK) {
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return ESP_ERR_HTTPD_RESP_SEND;
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}
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/* Send header value */
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if (httpd_send_all(r, ra->resp_hdrs[i].value, strlen(ra->resp_hdrs[i].value)) != ESP_OK) {
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return ESP_ERR_HTTPD_RESP_SEND;
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}
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/* Send CR + LF */
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if (httpd_send_all(r, cr_lf_seperator, strlen(cr_lf_seperator)) != ESP_OK) {
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return ESP_ERR_HTTPD_RESP_SEND;
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}
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}
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/* End header section */
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if (httpd_send_all(r, cr_lf_seperator, strlen(cr_lf_seperator)) != ESP_OK) {
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return ESP_ERR_HTTPD_RESP_SEND;
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}
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ra->first_chunk_sent = true;
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}
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/* Sending chunked content */
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char len_str[10];
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snprintf(len_str, sizeof(len_str), "%x\r\n", buf_len);
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if (httpd_send_all(r, len_str, strlen(len_str)) != ESP_OK) {
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return ESP_ERR_HTTPD_RESP_SEND;
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}
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if (buf) {
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if (httpd_send_all(r, buf, (size_t) buf_len) != ESP_OK) {
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return ESP_ERR_HTTPD_RESP_SEND;
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}
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}
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/* Indicate end of chunk */
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if (httpd_send_all(r, "\r\n", strlen("\r\n")) != ESP_OK) {
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return ESP_ERR_HTTPD_RESP_SEND;
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}
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return ESP_OK;
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}
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esp_err_t httpd_resp_send_err(httpd_req_t *req, httpd_err_code_t error, const char *usr_msg)
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{
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esp_err_t ret;
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const char *msg;
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const char *status;
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switch (error) {
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case HTTPD_501_METHOD_NOT_IMPLEMENTED:
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status = "501 Method Not Implemented";
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msg = "Server does not support this method";
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break;
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case HTTPD_505_VERSION_NOT_SUPPORTED:
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status = "505 Version Not Supported";
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msg = "HTTP version not supported by server";
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break;
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case HTTPD_400_BAD_REQUEST:
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status = "400 Bad Request";
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msg = "Bad request syntax";
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break;
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case HTTPD_401_UNAUTHORIZED:
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status = "401 Unauthorized";
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msg = "No permission -- see authorization schemes";
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break;
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case HTTPD_403_FORBIDDEN:
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status = "403 Forbidden";
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msg = "Request forbidden -- authorization will not help";
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break;
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case HTTPD_404_NOT_FOUND:
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status = "404 Not Found";
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msg = "Nothing matches the given URI";
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break;
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case HTTPD_405_METHOD_NOT_ALLOWED:
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status = "405 Method Not Allowed";
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msg = "Specified method is invalid for this resource";
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break;
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case HTTPD_408_REQ_TIMEOUT:
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status = "408 Request Timeout";
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msg = "Server closed this connection";
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break;
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case HTTPD_414_URI_TOO_LONG:
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status = "414 URI Too Long";
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msg = "URI is too long";
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break;
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case HTTPD_411_LENGTH_REQUIRED:
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status = "411 Length Required";
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msg = "Client must specify Content-Length";
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break;
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case HTTPD_431_REQ_HDR_FIELDS_TOO_LARGE:
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status = "431 Request Header Fields Too Large";
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msg = "Header fields are too long";
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break;
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case HTTPD_500_INTERNAL_SERVER_ERROR:
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default:
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status = "500 Internal Server Error";
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msg = "Server has encountered an unexpected error";
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}
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/* If user has provided custom message, override default message */
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msg = usr_msg ? usr_msg : msg;
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ESP_LOGW(TAG, LOG_FMT("%s - %s"), status, msg);
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/* Set error code in HTTP response */
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httpd_resp_set_status(req, status);
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httpd_resp_set_type(req, HTTPD_TYPE_TEXT);
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#ifdef CONFIG_HTTPD_ERR_RESP_NO_DELAY
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/* Use TCP_NODELAY option to force socket to send data in buffer
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* This ensures that the error message is sent before the socket
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* is closed */
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struct httpd_req_aux *ra = req->aux;
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int nodelay = 1;
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if (setsockopt(ra->sd->fd, IPPROTO_TCP, TCP_NODELAY, &nodelay, sizeof(nodelay)) < 0) {
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/* If failed to turn on TCP_NODELAY, throw warning and continue */
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ESP_LOGW(TAG, LOG_FMT("error calling setsockopt : %d"), errno);
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nodelay = 0;
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}
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#endif
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/* Send HTTP error message */
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ret = httpd_resp_send(req, msg, HTTPD_RESP_USE_STRLEN);
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#ifdef CONFIG_HTTPD_ERR_RESP_NO_DELAY
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/* If TCP_NODELAY was set successfully above, time to disable it */
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if (nodelay == 1) {
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nodelay = 0;
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if (setsockopt(ra->sd->fd, IPPROTO_TCP, TCP_NODELAY, &nodelay, sizeof(nodelay)) < 0) {
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/* If failed to turn off TCP_NODELAY, throw error and
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* return failure to signal for socket closure */
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ESP_LOGE(TAG, LOG_FMT("error calling setsockopt : %d"), errno);
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return ESP_ERR_INVALID_STATE;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
return ret;
|
|
}
|
|
|
|
esp_err_t httpd_register_err_handler(httpd_handle_t handle,
|
|
httpd_err_code_t error,
|
|
httpd_err_handler_func_t err_handler_fn)
|
|
{
|
|
if (handle == NULL || error >= HTTPD_ERR_CODE_MAX) {
|
|
return ESP_ERR_INVALID_ARG;
|
|
}
|
|
|
|
struct httpd_data *hd = (struct httpd_data *) handle;
|
|
hd->err_handler_fns[error] = err_handler_fn;
|
|
return ESP_OK;
|
|
}
|
|
|
|
esp_err_t httpd_req_handle_err(httpd_req_t *req, httpd_err_code_t error)
|
|
{
|
|
struct httpd_data *hd = (struct httpd_data *) req->handle;
|
|
esp_err_t ret;
|
|
|
|
/* Invoke custom error handler if configured */
|
|
if (hd->err_handler_fns[error]) {
|
|
ret = hd->err_handler_fns[error](req, error);
|
|
|
|
/* If error code is 500, force return failure
|
|
* irrespective of the handler's return value */
|
|
ret = (error == HTTPD_500_INTERNAL_SERVER_ERROR ? ESP_FAIL : ret);
|
|
} else {
|
|
/* If no handler is registered for this error default
|
|
* behavior is to send the HTTP error response and
|
|
* return failure for closure of underlying socket */
|
|
httpd_resp_send_err(req, error, NULL);
|
|
ret = ESP_FAIL;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
int httpd_req_recv(httpd_req_t *r, char *buf, size_t buf_len)
|
|
{
|
|
if (r == NULL || buf == NULL) {
|
|
return HTTPD_SOCK_ERR_INVALID;
|
|
}
|
|
|
|
if (!httpd_valid_req(r)) {
|
|
ESP_LOGW(TAG, LOG_FMT("invalid request"));
|
|
return HTTPD_SOCK_ERR_INVALID;
|
|
}
|
|
|
|
struct httpd_req_aux *ra = r->aux;
|
|
ESP_LOGD(TAG, LOG_FMT("remaining length = %d"), ra->remaining_len);
|
|
|
|
if (buf_len > ra->remaining_len) {
|
|
buf_len = ra->remaining_len;
|
|
}
|
|
if (buf_len == 0) {
|
|
return buf_len;
|
|
}
|
|
|
|
int ret = httpd_recv(r, buf, buf_len);
|
|
if (ret < 0) {
|
|
ESP_LOGD(TAG, LOG_FMT("error in httpd_recv"));
|
|
return ret;
|
|
}
|
|
ra->remaining_len -= ret;
|
|
ESP_LOGD(TAG, LOG_FMT("received length = %d"), ret);
|
|
return ret;
|
|
}
|
|
|
|
int httpd_req_to_sockfd(httpd_req_t *r)
|
|
{
|
|
if (r == NULL) {
|
|
return -1;
|
|
}
|
|
|
|
if (!httpd_valid_req(r)) {
|
|
ESP_LOGW(TAG, LOG_FMT("invalid request"));
|
|
return -1;
|
|
}
|
|
|
|
struct httpd_req_aux *ra = r->aux;
|
|
return ra->sd->fd;
|
|
}
|
|
|
|
static int httpd_sock_err(const char *ctx, int sockfd)
|
|
{
|
|
int errval;
|
|
ESP_LOGW(TAG, LOG_FMT("error in %s : %d"), ctx, errno);
|
|
|
|
switch(errno) {
|
|
case EAGAIN:
|
|
case EINTR:
|
|
errval = HTTPD_SOCK_ERR_TIMEOUT;
|
|
break;
|
|
case EINVAL:
|
|
case EBADF:
|
|
case EFAULT:
|
|
case ENOTSOCK:
|
|
errval = HTTPD_SOCK_ERR_INVALID;
|
|
break;
|
|
default:
|
|
errval = HTTPD_SOCK_ERR_FAIL;
|
|
}
|
|
return errval;
|
|
}
|
|
|
|
int httpd_default_send(httpd_handle_t hd, int sockfd, const char *buf, size_t buf_len, int flags)
|
|
{
|
|
(void)hd;
|
|
if (buf == NULL) {
|
|
return HTTPD_SOCK_ERR_INVALID;
|
|
}
|
|
|
|
int ret = send(sockfd, buf, buf_len, flags);
|
|
if (ret < 0) {
|
|
return httpd_sock_err("send", sockfd);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
int httpd_default_recv(httpd_handle_t hd, int sockfd, char *buf, size_t buf_len, int flags)
|
|
{
|
|
(void)hd;
|
|
if (buf == NULL) {
|
|
return HTTPD_SOCK_ERR_INVALID;
|
|
}
|
|
|
|
int ret = recv(sockfd, buf, buf_len, flags);
|
|
if (ret < 0) {
|
|
return httpd_sock_err("recv", sockfd);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
int httpd_socket_send(httpd_handle_t hd, int sockfd, const char *buf, size_t buf_len, int flags)
|
|
{
|
|
struct sock_db *sess = httpd_sess_get(hd, sockfd);
|
|
if (!sess) {
|
|
return ESP_ERR_INVALID_ARG;
|
|
}
|
|
if (!sess->send_fn) {
|
|
return ESP_ERR_INVALID_STATE;
|
|
}
|
|
return sess->send_fn(hd, sockfd, buf, buf_len, flags);
|
|
}
|
|
|
|
int httpd_socket_recv(httpd_handle_t hd, int sockfd, char *buf, size_t buf_len, int flags)
|
|
{
|
|
struct sock_db *sess = httpd_sess_get(hd, sockfd);
|
|
if (!sess) {
|
|
return ESP_ERR_INVALID_ARG;
|
|
}
|
|
if (!sess->recv_fn) {
|
|
return ESP_ERR_INVALID_STATE;
|
|
}
|
|
return sess->recv_fn(hd, sockfd, buf, buf_len, flags);
|
|
}
|