512 lines
14 KiB
C
512 lines
14 KiB
C
#include <stdlib.h>
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#include <stdbool.h>
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#include <esp_log.h>
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#include <esp_system.h>
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#include <http_server.h>
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#include "tests.h"
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static const char *TAG="TESTS";
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int pre_start_mem, post_stop_mem, post_stop_min_mem;
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bool basic_sanity = true;
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/********************* Basic Handlers Start *******************/
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esp_err_t hello_get_handler(httpd_req_t *req)
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{
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#define STR "Hello World!"
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ESP_LOGI(TAG, "Free Stack for server task: %d", uxTaskGetStackHighWaterMark(NULL));
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httpd_resp_send(req, STR, strlen(STR));
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return ESP_OK;
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#undef STR
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}
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esp_err_t hello_type_get_handler(httpd_req_t *req)
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{
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#define STR "Hello World!"
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httpd_resp_set_type(req, HTTPD_TYPE_TEXT);
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httpd_resp_send(req, STR, strlen(STR));
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return ESP_OK;
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#undef STR
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}
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esp_err_t hello_status_get_handler(httpd_req_t *req)
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{
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#define STR "Hello World!"
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httpd_resp_set_status(req, HTTPD_500);
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httpd_resp_send(req, STR, strlen(STR));
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return ESP_OK;
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#undef STR
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}
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esp_err_t echo_post_handler(httpd_req_t *req)
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{
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ESP_LOGI(TAG, "/echo handler read content length %d", req->content_len);
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char* buf = malloc(req->content_len + 1);
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size_t off = 0;
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int ret;
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if (!buf) {
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return ESP_FAIL;
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}
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while (off < req->content_len) {
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/* Read data received in the request */
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ret = httpd_req_recv(req, buf + off, req->content_len - off);
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if (ret < 0) {
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free (buf);
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return ESP_FAIL;
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}
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off += ret;
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ESP_LOGI(TAG, "/echo handler recv length %d", ret);
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}
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buf[off] = '\0';
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if (req->content_len < 128) {
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ESP_LOGI(TAG, "/echo handler read %s", buf);
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}
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/* Search for Custom header field */
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char* req_hdr = 0;
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size_t hdr_len = httpd_req_get_hdr_value_len(req, "Custom");
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if (hdr_len) {
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/* Read Custom header value */
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req_hdr = malloc(hdr_len + 1);
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if (req_hdr) {
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httpd_req_get_hdr_value_str(req, "Custom", req_hdr, hdr_len + 1);
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/* Set as additional header for response packet */
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httpd_resp_set_hdr(req, "Custom", req_hdr);
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}
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}
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httpd_resp_send(req, buf, req->content_len);
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free (req_hdr);
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free (buf);
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return ESP_OK;
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}
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void adder_free_func(void *ctx)
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{
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ESP_LOGI(TAG, "Custom Free Context function called");
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free(ctx);
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}
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/* Create a context, keep incrementing value in the context, by whatever was
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* received. Return the result
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*/
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esp_err_t adder_post_handler(httpd_req_t *req)
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{
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char buf[10];
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char outbuf[50];
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int ret;
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/* Read data received in the request */
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ret = httpd_req_recv(req, buf, sizeof(buf));
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if (ret < 0) {
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return ESP_FAIL;
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}
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buf[ret] = '\0';
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int val = atoi(buf);
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ESP_LOGI(TAG, "/adder handler read %d", val);
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if (! req->sess_ctx) {
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ESP_LOGI(TAG, "/adder allocating new session");
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req->sess_ctx = malloc(sizeof(int));
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req->free_ctx = adder_free_func;
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*(int *)req->sess_ctx = 0;
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}
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int *adder = (int *)req->sess_ctx;
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*adder += val;
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snprintf(outbuf, sizeof(outbuf),"%d", *adder);
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httpd_resp_send(req, outbuf, strlen(outbuf));
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return ESP_OK;
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}
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esp_err_t leftover_data_post_handler(httpd_req_t *req)
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{
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/* Only echo the first 10 bytes of the request, leaving the rest of the
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* request data as is.
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*/
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char buf[11];
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int ret;
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/* Read data received in the request */
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ret = httpd_req_recv(req, buf, sizeof(buf) - 1);
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if (ret < 0) {
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return ESP_FAIL;
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}
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buf[ret] = '\0';
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ESP_LOGI(TAG, "leftover data handler read %s", buf);
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httpd_resp_send(req, buf, strlen(buf));
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return ESP_OK;
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}
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int httpd_default_send(int sockfd, const char *buf, unsigned buf_len, int flags);
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void generate_async_resp(void *arg)
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{
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char buf[250];
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int fd = (int )arg;
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#define HTTPD_HDR_STR "HTTP/1.1 200 OK\r\n" \
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"Content-Type: text/html\r\n" \
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"Content-Length: %d\r\n"
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#define STR "Hello Double World!"
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ESP_LOGI(TAG, "Executing queued work fd : %d", fd);
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snprintf(buf, sizeof(buf), HTTPD_HDR_STR,
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strlen(STR));
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httpd_default_send(fd, buf, strlen(buf), 0);
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/* Space for sending additional headers based on set_header */
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httpd_default_send(fd, "\r\n", strlen("\r\n"), 0);
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httpd_default_send(fd, STR, strlen(STR), 0);
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#undef STR
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}
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esp_err_t async_get_handler(httpd_req_t *req)
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{
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#define STR "Hello World!"
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httpd_resp_send(req, STR, strlen(STR));
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/* Also register a HTTPD Work which sends the same data on the same
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* socket again
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*/
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int fd = httpd_req_to_sockfd(req);
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if (fd < 0) {
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return ESP_FAIL;
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}
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ESP_LOGI(TAG, "Queuing work fd : %d", fd);
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httpd_queue_work(req->handle, generate_async_resp, (void *)fd);
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return ESP_OK;
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#undef STR
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}
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httpd_uri_t basic_handlers[] = {
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{ .uri = "/hello/type_html",
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.method = HTTP_GET,
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.handler = hello_type_get_handler,
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.user_ctx = NULL,
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},
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{ .uri = "/hello",
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.method = HTTP_GET,
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.handler = hello_get_handler,
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.user_ctx = NULL,
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},
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{ .uri = "/hello/status_500",
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.method = HTTP_GET,
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.handler = hello_status_get_handler,
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.user_ctx = NULL,
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},
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{ .uri = "/echo",
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.method = HTTP_POST,
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.handler = echo_post_handler,
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.user_ctx = NULL,
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},
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{ .uri = "/echo",
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.method = HTTP_PUT,
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.handler = echo_post_handler,
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.user_ctx = NULL,
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},
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{ .uri = "/leftover_data",
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.method = HTTP_POST,
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.handler = leftover_data_post_handler,
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.user_ctx = NULL,
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},
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{ .uri = "/adder",
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.method = HTTP_POST,
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.handler = adder_post_handler,
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.user_ctx = NULL,
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},
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{ .uri = "/async_data",
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.method = HTTP_GET,
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.handler = async_get_handler,
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.user_ctx = NULL,
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}
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};
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int basic_handlers_no = sizeof(basic_handlers)/sizeof(httpd_uri_t);
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void register_basic_handlers(httpd_handle_t hd)
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{
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int i;
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ESP_LOGI(TAG, "Registering basic handlers");
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ESP_LOGI(TAG, "No of handlers = %d", basic_handlers_no);
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for (i = 0; i < basic_handlers_no; i++) {
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if (httpd_register_uri_handler(hd, &basic_handlers[i]) != ESP_OK) {
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ESP_LOGW(TAG, "register uri failed for %d", i);
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return;
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}
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}
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ESP_LOGI(TAG, "Success");
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}
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/********************* Basic Handlers End *******************/
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esp_err_t my_hello_post_handler(httpd_req_t *req)
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{
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char buf[10];
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char outbuf[50];
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int ret;
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ret = httpd_req_recv(req, buf, sizeof(buf));
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if (ret < 0) {
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return ESP_FAIL;
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}
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httpd_resp_set_status(req, HTTPD_404);
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httpd_resp_set_type(req, HTTPD_TYPE_TEXT);
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ESP_LOGI(TAG, "Read %d bytes as:%s:", ret, buf);
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buf[ret] = '\0';
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#define STR "my_hello_handler"
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snprintf(outbuf, sizeof(outbuf), STR" %s", buf);
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httpd_resp_send(req, outbuf, strlen(outbuf));
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return ESP_OK;
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#undef STR
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}
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/********************* Test Handler Limit Start *******************/
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esp_err_t null_func(httpd_req_t *req)
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{
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return ESP_OK;
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}
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httpd_uri_t handler_limit_uri (char* path)
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{
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httpd_uri_t uri = {
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.uri = path,
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.method = HTTP_GET,
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.handler = null_func,
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.user_ctx = NULL,
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};
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return uri;
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};
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static inline unsigned num_digits(unsigned x)
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{
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unsigned digits = 1;
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while ((x = x/10) != 0) {
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digits++;
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}
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return digits;
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}
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#define HTTPD_TEST_MAX_URI_HANDLERS 8
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void test_handler_limit(httpd_handle_t hd)
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{
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int i, ret;
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char x[HTTPD_TEST_MAX_URI_HANDLERS+1][num_digits(HTTPD_TEST_MAX_URI_HANDLERS)+1];
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httpd_uri_t uris[HTTPD_TEST_MAX_URI_HANDLERS+1];
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for (i = 0; i < HTTPD_TEST_MAX_URI_HANDLERS + 1; i++) {
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sprintf(x[i],"%d",i);
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uris[i] = handler_limit_uri(x[i]);
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}
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/* Register multiple instances of the same handler for MAX URI Handlers */
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ESP_LOGI(TAG, "Test: Register Max URI handlers: %d...", HTTPD_TEST_MAX_URI_HANDLERS);
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for (i = 0; i < HTTPD_TEST_MAX_URI_HANDLERS; i++) {
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ret = httpd_register_uri_handler(hd, &uris[i]);
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if (ret != ESP_OK) {
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ESP_LOGI(TAG, "Fail");
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goto error_ret;
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}
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}
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ESP_LOGI(TAG, "Success");
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/* Register the MAX URI + 1 Handlers should fail */
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ESP_LOGI(TAG, "Test: Register Max URI + 1 handlers: %d th...", HTTPD_TEST_MAX_URI_HANDLERS +1 );
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ret = httpd_register_uri_handler(hd, &uris[HTTPD_TEST_MAX_URI_HANDLERS]);
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if (ret == ESP_OK) {
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ESP_LOGI(TAG, "Fail");
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goto error_ret;
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}
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ESP_LOGI(TAG, "Success");
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/* Unregister the one of the Handler should pass */
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ESP_LOGI(TAG, "Test: Unregister 0th handler...");
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ret = httpd_unregister_uri_handler(hd, uris[0].uri, uris[0].method);
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if (ret != ESP_OK) {
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ESP_LOGI(TAG, "Fail");
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goto error_ret;
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}
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ESP_LOGI(TAG, "Success");
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/* Unregister non added Handler should fail */
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ESP_LOGI(TAG, "Test: Again unregister 0th handler not registered...");
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ret = httpd_unregister_uri_handler(hd, uris[0].uri, uris[0].method);
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if (ret == ESP_OK) {
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ESP_LOGI(TAG, "Fail");
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goto error_ret;
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}
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ESP_LOGI(TAG, "Success");
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/* Register the MAX URI Handler should pass */
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ESP_LOGI(TAG, "Test: Register back 0th handler...");
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ret = httpd_register_uri_handler(hd, &uris[0]);
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if (ret != ESP_OK) {
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ESP_LOGI(TAG, "Fail");
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goto error_ret;
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}
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ESP_LOGI(TAG, "Success");
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/* Reregister same instance of handler should fail */
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ESP_LOGI(TAG, "Test: Register 0th handler again after registering...");
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ret = httpd_register_uri_handler(hd, &uris[0]);
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if (ret == ESP_OK) {
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ESP_LOGI(TAG, "Fail");
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goto error_ret;
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}
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ESP_LOGI(TAG, "Success");
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/* Register the MAX URI + 1 Handlers should fail */
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ESP_LOGI(TAG, "Test: Register 1 more handler...");
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ret = httpd_register_uri_handler(hd, &uris[HTTPD_TEST_MAX_URI_HANDLERS]);
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if (ret == ESP_OK) {
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ESP_LOGI(TAG, "Fail");
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goto error_ret;
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}
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ESP_LOGI(TAG, "Success");
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/* Unregister the same handler for MAX URI Handlers */
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ESP_LOGI(TAG, "Test: Unregister all handlers:");
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for (i = 0; i < HTTPD_TEST_MAX_URI_HANDLERS; i++) {
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ret = httpd_unregister_uri_handler(hd, uris[i].uri, uris[i].method);
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if (ret != 0) {
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ESP_LOGI(TAG, "Fail");
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goto error_ret;
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}
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}
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ESP_LOGI(TAG, "Success");
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error_ret:
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for (; i < HTTPD_TEST_MAX_URI_HANDLERS; i++) {
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httpd_unregister_uri_handler(hd, uris[i].uri, uris[i].method);
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}
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basic_sanity = false;
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}
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/********************* Test Handler Limit End *******************/
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httpd_handle_t test_httpd_start()
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{
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pre_start_mem = esp_get_free_heap_size();
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httpd_handle_t hd;
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httpd_config_t config = HTTPD_DEFAULT_CONFIG();
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if (httpd_start(&hd, &config) == ESP_OK) {
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ESP_LOGI(TAG, "Started HTTP server on port: %d", config.server_port);
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ESP_LOGI(TAG, "Max URI handlers: %d", config.max_uri_handlers);
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ESP_LOGI(TAG, "Max Open Sessions: %d", config.max_open_sockets);
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ESP_LOGI(TAG, "Max Header Length: %d", HTTPD_MAX_REQ_HDR_LEN);
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ESP_LOGI(TAG, "Max URI Length: %d", HTTPD_MAX_URI_LEN);
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ESP_LOGI(TAG, "Max Stack Size: %d", config.stack_size);
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return hd;
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}
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return NULL;
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}
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httpd_handle_t test_httpd_start_dummy(uint16_t id)
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{
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pre_start_mem = esp_get_free_heap_size();
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ESP_LOGI(TAG, "HTTPD Start: Current free memory: %d", pre_start_mem);
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httpd_handle_t hd;
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httpd_config_t config = HTTPD_DEFAULT_CONFIG();
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config.max_uri_handlers = HTTPD_TEST_MAX_URI_HANDLERS;
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config.server_port += id;
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config.ctrl_port += id;
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if (httpd_start(&hd, &config) == ESP_OK) {
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return hd;
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}
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return NULL;
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}
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void test_httpd_stop(httpd_handle_t hd)
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{
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httpd_stop(hd);
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post_stop_mem = esp_get_free_heap_size();
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ESP_LOGI(TAG, "HTTPD Stop: Current free memory: %d", post_stop_mem);
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// Below function is not available but would be desirable to have
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// post_stop_min_mem = os_get_minimum_free_mem();
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// ESP_LOGI(TAG, "HTTPD Stop: Minimum free memory: %d", post_stop_min_mem);
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}
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#define SERVER_INSTANCES 10
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/* Currently this only tests for the number of tasks.
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* Heap leakage is not tested as LWIP allocates memory
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* which may not be freed immedietly causing erroneous
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* evaluation. Another test to implement would be the
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* monitoring of open sockets, but LWIP presently provides
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* no such API for getting the number of open sockets.
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*/
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bool leak_test(void)
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{
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httpd_handle_t hd[SERVER_INSTANCES];
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bool success = true;
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unsigned task_count = uxTaskGetNumberOfTasks();
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ESP_LOGI(TAG, "Leak Test Started...");
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ESP_LOGI(TAG, "Current free heap : %d", xPortGetFreeHeapSize());
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ESP_LOGI(TAG, "Total tasks running : %d", task_count);
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for (int i = 0; i < SERVER_INSTANCES; i++) {
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ESP_LOGI(TAG, "Starting Server Instance [%d]", i);
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hd[i] = test_httpd_start_dummy(i);
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if (hd[i]) {
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register_basic_handlers(hd[i]);
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task_count++;
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}
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ESP_LOGI(TAG, "Current free heap : %d", xPortGetFreeHeapSize());
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ESP_LOGI(TAG, "Total tasks running : %d", uxTaskGetNumberOfTasks());
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if (uxTaskGetNumberOfTasks() != task_count) {
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ESP_LOGE(TAG, "Task count mismatch");
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success = false;
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break;
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}
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}
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for (int i = 0; i < SERVER_INSTANCES; i++) {
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ESP_LOGI(TAG, "Stopping Server Instance [%d]", i);
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if (hd[i]) {
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httpd_stop(hd[i]);
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task_count--;
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}
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ESP_LOGI(TAG, "Current free heap : %d", xPortGetFreeHeapSize());
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ESP_LOGI(TAG, "Total tasks running : %d", uxTaskGetNumberOfTasks());
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if (uxTaskGetNumberOfTasks() != task_count) {
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ESP_LOGE(TAG, "Task count mismatch");
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success = false;
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}
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}
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if (success) {
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ESP_LOGI(TAG, "Leak Test Passed");
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}
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else {
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ESP_LOGI(TAG, "Leak Test Failed");
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}
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return success;
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}
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httpd_handle_t start_tests()
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{
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leak_test();
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httpd_handle_t hd = test_httpd_start();
|
|
if (hd) {
|
|
test_handler_limit(hd);
|
|
register_basic_handlers(hd);
|
|
}
|
|
return hd;
|
|
}
|
|
|
|
void stop_tests(httpd_handle_t hd)
|
|
{
|
|
ESP_LOGI(TAG, "Stopping httpd");
|
|
test_httpd_stop(hd);
|
|
}
|