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support post requests and json request options

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ading2210 2024-01-04 01:01:11 -05:00
parent e695b1d14a
commit 8aedbcb6b3
2 changed files with 74 additions and 13 deletions
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45
client/main.c
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@ -6,7 +6,10 @@
#include <curl/curl.h>
#include <cjson/cJSON.h>
int write_function(void *data, size_t size, size_t nmemb, void(*data_callback)(char* chunk_ptr, int chunk_size)) {
typedef void(*DataCallback)(char* chunk_ptr, int chunk_size);
typedef void(*EndCallback)(int error);
int write_function(void *data, size_t size, size_t nmemb, DataCallback data_callback) {
long real_size = size * nmemb;
char* chunk = malloc(real_size);
memcpy(chunk, data, real_size);
@ -15,7 +18,7 @@ int write_function(void *data, size_t size, size_t nmemb, void(*data_callback)(c
return real_size;
}
void perform_request(const char* url, const char* json_params, void(*data_callback)(char* chunk_ptr, int chunk_size), void(*end_callback)(int error)) {
void perform_request(const char* url, const char* json_params, DataCallback data_callback, EndCallback end_callback, const char* body, int body_length) {
printf("downloading %s\n", url);
CURL *http_handle;
@ -38,13 +41,44 @@ void perform_request(const char* url, const char* json_params, void(*data_callba
//parse json options
cJSON* json = cJSON_Parse(json_params);
cJSON* item = NULL;
struct curl_slist* headers_list = NULL;
cJSON_ArrayForEach(item, json) {
char* key = item->string;
printf("%s\n", key);
if (strcmp(key, "_libcurl_verbose") == 0) {
curl_easy_setopt(http_handle, CURLOPT_VERBOSE, 1L);
}
if (strcmp(key, "method") == 0 && cJSON_IsString(item)) {
curl_easy_setopt(http_handle, CURLOPT_CUSTOMREQUEST, item->valuestring);
}
if (strcmp(key, "headers") == 0 && cJSON_IsObject(item)) {
cJSON* header = NULL;
cJSON_ArrayForEach(header, item) {
if (!cJSON_IsString(header)) continue;
int header_length = strlen(header->string) + strlen(header->valuestring) + 2;
char* header_str = malloc(header_length+1);
header_str[header_length] = 0;
sprintf(header_str, "%s: %s", header->string, header->valuestring);
headers_list = curl_slist_append(headers_list, header_str);
free(header_str);
}
curl_easy_setopt(http_handle, CURLOPT_HTTPHEADER, headers_list);
}
}
cJSON_Delete(json);
//add post data if specified
if (body != NULL) {
curl_easy_setopt(http_handle, CURLOPT_POSTFIELDS, body);
curl_easy_setopt(http_handle, CURLOPT_POSTFIELDSIZE, body_length);
}
multi_handle = curl_multi_init();
curl_multi_add_handle(multi_handle, http_handle);
@ -64,7 +98,8 @@ void perform_request(const char* url, const char* json_params, void(*data_callba
emscripten_sleep(0);
} while(still_running);
curl_slist_free_all(headers_list);
curl_multi_remove_handle(multi_handle, http_handle);
curl_easy_cleanup(http_handle);
curl_multi_cleanup(multi_handle);