refactoring project structure
This commit is contained in:
268
src/methods.c
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268
src/methods.c
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#include <curl/curl.h>
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#include "json.h"
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#include "methods.h"
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tgbot_rc tgbot_get_update(tgbot *bot, tgbot_update *update, Callback cbq_handler) {
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char url[1024];
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/* Clear Update */
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memset(update, 0, sizeof(tgbot_update));
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json_object *rjson = json_object_new_object();
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json_object_object_add(rjson, "offset", json_object_new_int64(bot->offset));
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json_object_object_add(rjson, "limit", json_object_new_int(1));
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json_object_object_add(rjson, "timeout", json_object_new_int(30));
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snprintf(url, sizeof(url), "%sgetUpdates", bot->api);
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struct memory_buffer *mb;
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tgbot_rc ret = tgbot_request(bot, url, &mb, rjson);
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json_object_put(rjson);
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if (ret != TGBOT_OK) {
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free(mb->data);
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free(mb);
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return TGBOT_GETUPDATES_ERROR;
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}
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json_object *json = json_tokener_parse(mb->data);
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free(mb->data);
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free(mb);
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json_object *ok = json_object_object_get(json, "ok");
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if (!json_object_is_type(ok, json_type_boolean) || !json_object_get_boolean(ok)) {
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json_object_put(json);
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return TGBOT_TELEGRAM_OK_ERROR;
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}
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json_object *results = json_object_object_get(json, "result");
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size_t results_len = json_object_array_length(results);
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if (results_len == 0) {
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json_object_put(json);
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return TGBOT_OK;
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}
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/* Check if it is a Message or a CallbackQuery*/
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json_object *result = json_object_array_get_idx(results, 0);
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json_object *message = json_object_object_get(result, "message");
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if (message) {
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tgbot_parse_message(bot, update, result);
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} else {
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tgbot_cbquery query;
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tgbot_parse_cbquery(bot, &query, result, cbq_handler);
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}
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json_object_put(json);
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return TGBOT_OK;
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}
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tgbot_rc tgbot_parse_message(tgbot *bot, tgbot_update *update, json_object *result) {
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json_object *update_id = json_object_object_get(result, "update_id");
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bot->offset = json_object_get_int(update_id) + 1;
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update->update_id = json_object_get_int(update_id);
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json_object *message = json_object_object_get(result, "message");
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json_object *message_id = json_object_object_get(message, "message_id");
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update->message_id = json_object_get_int(message_id);
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json_object *chat = json_object_object_get(message, "chat");
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json_object *chat_id = json_object_object_get(chat, "id");
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update->chat_id = json_object_get_int64(chat_id);
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json_object *chat_first_name = json_object_object_get(chat, "first_name");
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strncpy(update->chat_first_name, json_object_get_string(chat_first_name), sizeof(update->chat_first_name) - 1);
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json_object *chat_last_name = json_object_object_get(chat, "last_name");
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if (chat_last_name != NULL) {
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strncpy(update->chat_last_name, json_object_get_string(chat_last_name), sizeof(update->chat_last_name) - 1);
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} else {
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update->chat_last_name[0] = '\0';
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}
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json_object *chat_username = json_object_object_get(chat, "username");
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if (chat_username != NULL) {
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strncpy(update->chat_username, json_object_get_string(chat_username), sizeof(update->chat_username) - 1);
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} else {
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update->chat_username[0] = '\0';
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}
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json_object *chat_type = json_object_object_get(chat, "type");
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strncpy(update->chat_type, json_object_get_string(chat_type), sizeof(update->chat_type) - 1);
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json_object *date = json_object_object_get(message, "date");
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update->date = json_object_get_int(date);
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json_object *text = json_object_object_get(message, "text");
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strncpy(update->text, json_object_get_string(text), sizeof(update->text) - 1);
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return TGBOT_OK;
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}
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tgbot_rc tgbot_parse_cbquery(tgbot *bot, tgbot_cbquery *query, json_object *result, Callback cbq_handler) {
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json_object *update_id = json_object_object_get(result, "update_id");
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bot->offset = json_object_get_int(update_id) + 1;
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query->update_id = json_object_get_int(update_id);
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json_object *callback_query = json_object_object_get(result, "callback_query");
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json_object *message = json_object_object_get(callback_query, "message");
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json_object *message_id = json_object_object_get(message, "message_id");
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query->message_id = json_object_get_int(message_id);
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json_object *chat = json_object_object_get(message, "chat");
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json_object *chat_id = json_object_object_get(chat, "id");
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query->chat_id = json_object_get_int64(chat_id);
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json_object *chat_username = json_object_object_get(chat, "username");
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/* TODO: add NULL checks */
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strncpy(query->chat_username, json_object_get_string(chat_username), sizeof(query->chat_username) - 1);
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json_object *date = json_object_object_get(message, "date");
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query->date = json_object_get_int(date);
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json_object *text = json_object_object_get(message, "text");
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strncpy(query->text, json_object_get_string(text), sizeof(query->text) - 1);
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json_object *chat_instance = json_object_object_get(callback_query, "chat_instance");
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strncpy(query->chat_instance, json_object_get_string(chat_instance), sizeof(query->chat_instance) - 1);
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json_object *data = json_object_object_get(callback_query, "data");
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strncpy(query->data, json_object_get_string(data), sizeof(query->data) - 1);
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cbq_handler(bot, query);
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return TGBOT_OK;
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}
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size_t write_callback(void *ptr, size_t size, size_t nmemb, char **userdata) {
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size_t real_size = size * nmemb;
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struct memory_buffer *mem = (struct memory_buffer *)userdata;
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mem->data = realloc(mem->data, mem->size + real_size + 1);
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memcpy(&(mem->data[mem->size]), ptr, real_size);
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mem->size += real_size;
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mem->data[mem->size] = '\0';
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return real_size;
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}
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tgbot_rc tgbot_request(tgbot *bot, char *url, struct memory_buffer **mb, json_object *json) {
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const char *json_string = NULL;
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*mb = calloc(1, sizeof(struct memory_buffer));
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struct curl_slist *headers = NULL;
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headers = curl_slist_append(headers, "Accept: application/json");
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headers = curl_slist_append(headers, "Content-Type: application/json");
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curl_easy_setopt(bot->curl, CURLOPT_URL, url);
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curl_easy_setopt(bot->curl, CURLOPT_HTTPHEADER, headers);
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curl_easy_setopt(bot->curl, CURLOPT_WRITEFUNCTION, (curl_write_callback)write_callback);
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curl_easy_setopt(bot->curl, CURLOPT_WRITEDATA, *mb);
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curl_easy_setopt(bot->curl, CURLOPT_SSL_VERIFYPEER, 0L);
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curl_easy_setopt(bot->curl, CURLOPT_TCP_KEEPALIVE, 30L);
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if (json != NULL) {
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json_string = json_object_to_json_string_ext(json, JSON_C_TO_STRING_PLAIN);
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curl_easy_setopt(bot->curl, CURLOPT_POSTFIELDS, json_string);
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}
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CURLcode res = curl_easy_perform(bot->curl);
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curl_slist_free_all(headers);
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if (res != CURLE_OK) {
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free((*mb)->data);
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free(*mb);
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*mb = NULL;
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return TGBOT_REQUEST_ERROR;
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}
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return TGBOT_OK;
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}
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tgbot_rc tgbot_get_me(tgbot *bot, tgbot_me *me) {
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char url[1024];
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snprintf(url, sizeof(url), "%sgetMe", bot->api);
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struct memory_buffer *mb;
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tgbot_rc ret = tgbot_request(bot, url, &mb, NULL);
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if (ret != TGBOT_OK) {
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free(mb->data);
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free(mb);
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return TGBOT_GETME_ERROR;
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}
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json_object *json = json_tokener_parse(mb->data);
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free(mb->data);
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free(mb);
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json_object *ok = json_object_object_get(json, "ok");
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if (!json_object_get_boolean(ok)) {
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json_object_put(json);
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return TGBOT_GETME_ERROR;
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}
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json_object *result = json_object_object_get(json, "result");
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json_object *first_name = json_object_object_get(result, "first_name");
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strncpy(me->first_name, json_object_get_string(first_name), sizeof(me->first_name) - 1);
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json_object *username = json_object_object_get(result, "username");
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strncpy(me->username, json_object_get_string(username), sizeof(me->username) - 1);
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json_object_put(json);
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return TGBOT_OK;
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}
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tgbot_rc tgbot_send_message(tgbot *bot, int64_t chat_id, char *text, char *parse_mode, tgbot_inlinekeyboardmarkup **keyboard, size_t rows, size_t columns) {
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char url[1024];
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json_object *rjson = json_object_new_object();
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json_object_object_add(rjson, "chat_id", json_object_new_int64(chat_id));
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json_object_object_add(rjson, "text", json_object_new_string(text));
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json_object_object_add(rjson, "parse_mode", json_object_new_string(parse_mode));
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if (keyboard != NULL) {
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json_object *reply_markup = tgbot_new_inlinekeyboardmarkup(keyboard, rows, columns);
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json_object_object_add(rjson, "reply_markup", reply_markup);
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}
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snprintf(url, sizeof(url), "%ssendMessage", bot->api);
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struct memory_buffer *mb;
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tgbot_rc ret = tgbot_request(bot, url, &mb, rjson);
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json_object_put(rjson);
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if (ret != TGBOT_OK) {
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free(mb->data);
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free(mb);
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return TGBOT_SENDMESSAGE_ERROR;
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}
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free(mb->data);
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free(mb);
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return TGBOT_OK;
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}
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tgbot_rc tgbot_edit_message_text(tgbot *bot, int64_t chat_id, long message_id, char *text, tgbot_inlinekeyboardmarkup **keyboard, size_t rows, size_t columns) {
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char url[1024];
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json_object *rjson = json_object_new_object();
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json_object_object_add(rjson, "chat_id", json_object_new_int64(chat_id));
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json_object_object_add(rjson, "message_id", json_object_new_int(message_id));
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json_object_object_add(rjson, "text", json_object_new_string(text));
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snprintf(url, sizeof(url), "%seditMessageText", bot->api);
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if (keyboard != NULL) {
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json_object *reply_markup = tgbot_new_inlinekeyboardmarkup(keyboard, rows, columns);
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json_object_object_add(rjson, "reply_markup", reply_markup);
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}
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struct memory_buffer *mb;
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tgbot_request(bot, url, &mb, rjson);
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json_object_put(rjson);
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free(mb->data);
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free(mb);
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return TGBOT_OK;
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}
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