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OSSP_Mirror/src/configHandler.c

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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include "configHandler.h"
#include "external/cJSON.h"
#include "libopensubsonic/logger.h"
#if defined(__APPLE__) && defined(__MACH__) && defined(XCODE)
#include "OSSP_Bridge.h"
#endif // defined(__APPLE__) && defined(__MACH__) && defined(__XCODE__)
static int rc = 0;
/*
* Read a predefined config file into the configuration struct
* Returns 0 on success, 1 on failure
*/
int configHandler_Read(configHandler_config_t** configObj) {
// Allocate config object on heap
*configObj = malloc(sizeof(configHandler_config_t));
// Initialize struct variables
(*configObj)->opensubsonic_protocol = NULL;
(*configObj)->opensubsonic_server = NULL;
(*configObj)->opensubsonic_username = NULL;
(*configObj)->opensubsonic_password = NULL;
(*configObj)->internal_opensubsonic_version = NULL;
(*configObj)->internal_opensubsonic_clientName = NULL;
(*configObj)->internal_opensubsonic_loginSalt = NULL;
(*configObj)->internal_opensubsonic_loginToken = NULL;
(*configObj)->listenbrainz_enable = false;
(*configObj)->listenbrainz_token = NULL;
(*configObj)->lastfm_enable = false;
(*configObj)->lastfm_username = NULL;
(*configObj)->lastfm_password = NULL;
(*configObj)->lastfm_api_key = NULL;
(*configObj)->lastfm_api_secret = NULL;
(*configObj)->lastfm_api_session_key = NULL;
(*configObj)->discordrpc_enable = false;
(*configObj)->discordrpc_method = 0;
(*configObj)->audio_equalizer_enable = false;
(*configObj)->audio_equalizer_followPitch = false;
(*configObj)->audio_equalizer_graphCount = 0;
(*configObj)->audio_equalizer_graph = NULL;
(*configObj)->audio_pitch_enable = false;
(*configObj)->audio_pitch_cents = 0.00;
(*configObj)->audio_pitch_rate = 0.00;
(*configObj)->audio_reverb_enable = false;
(*configObj)->audio_reverb_wetDryMix = 0.00;
(*configObj)->lv2_parax32_filter_name = NULL;
(*configObj)->lv2_parax32_filter_type_left = NULL;
(*configObj)->lv2_parax32_filter_type_right = NULL;
(*configObj)->lv2_parax32_gain_left = NULL;
(*configObj)->lv2_parax32_gain_right = NULL;
(*configObj)->lv2_parax32_quality_left = NULL;
(*configObj)->lv2_parax32_quality_right = NULL;
(*configObj)->lv2_parax32_frequency_left = NULL;
(*configObj)->lv2_parax32_frequency_right = NULL;
// Set internal configuration values
(*configObj)->internal_opensubsonic_version = strdup("1.8.0");
(*configObj)->internal_opensubsonic_clientName = strdup("Hojuix_OSSP");
// Form the path to the config JSON
char* config_path = NULL;
#if defined(__APPLE__) && defined(__MACH__) && defined(XCODE)
// NOTE: This is a relatively hacky way of fetching the iOS container path without diving into the hell that is ObjC
char* root_path = getenv("HOME");
rc = asprintf(&config_path, "%s/Documents/config.json", root_path);
#if DEBUG
printf("iOS Container Path: %s\n", config_path);
#endif // DEBUG
#else
char* root_path = getenv("HOME");
rc = asprintf(&config_path, "%s/.config/ossp/config.json", root_path);
#endif // defined(__APPLE__) && defined(__MACH__) && defined(XCODE)
if (rc == -1) {
logger_log_error(__func__, "asprintf() failed (Could not generate config path).");
free(config_path);
return 1;
}
// Read config file
FILE* config_fd = NULL;
char* config_buf = NULL;
long config_fsize = 0;
long config_fread_rc = 0; // Needs to be separate from 'rc' as fread() returns bytes read
// Check if the config file exists, and fetch it's size
struct stat st;
if (stat(config_path, &st) == 0) {
config_fsize = st.st_size;
} else {
logger_log_error(__func__, "stat() failed (Config file does not exist).");
return 1;
}
// Actually open and read in the contents of the config file
config_fd = fopen(config_path, "rb");
if (config_fd == NULL) {
logger_log_error(__func__, "fopen() failed (Could not open config file).");
free(config_path);
return 1;
}
free(config_path);
config_buf = (char*)malloc(config_fsize + 1);
if (config_buf == NULL) {
logger_log_error(__func__, "malloc() failed (Could not allocate enough memory for the config file).");
fclose(config_fd);
return 1;
}
config_fread_rc = fread(config_buf, 1, config_fsize, config_fd);
if (config_fread_rc != config_fsize) {
logger_log_error(__func__, "fread() failed (Could not read the config file).");
fclose(config_fd);
free(config_buf);
return 1;
}
// Null terminate the buffer
config_buf[config_fsize] = '\0';
fclose(config_fd);
// Parse config JSON
cJSON* root = cJSON_Parse(config_buf);
free(config_buf);
if (root == NULL) {
logger_log_error(__func__, "cJSON_Parse() failed (Could not parse the configuration JSON).");
return 1;
}
// Make an object from opensubsonic_server
// TODO - Use the new OSS_P*oj functions?
cJSON* opensubsonic_server_root = cJSON_GetObjectItemCaseSensitive(root, "opensubsonic_server");
if (opensubsonic_server_root == NULL) {
logger_log_error(__func__, "Error parsing JSON - opensubsonic_server does not exist.");
cJSON_Delete(root);
return 1;
}
cJSON* opensubsonic_server_protocol = cJSON_GetObjectItemCaseSensitive(opensubsonic_server_root, "protocol");
if (cJSON_IsString(opensubsonic_server_protocol) && opensubsonic_server_protocol->valuestring != NULL) {
(*configObj)->opensubsonic_protocol = strdup(opensubsonic_server_protocol->valuestring);
}
cJSON* opensubsonic_server_server = cJSON_GetObjectItemCaseSensitive(opensubsonic_server_root, "server");
if (cJSON_IsString(opensubsonic_server_server) && opensubsonic_server_server->valuestring != NULL) {
(*configObj)->opensubsonic_server = strdup(opensubsonic_server_server->valuestring);
}
cJSON* opensubsonic_server_username = cJSON_GetObjectItemCaseSensitive(opensubsonic_server_root, "username");
if (cJSON_IsString(opensubsonic_server_username) && opensubsonic_server_username->valuestring != NULL) {
(*configObj)->opensubsonic_username = strdup(opensubsonic_server_username->valuestring);
}
cJSON* opensubsonic_server_password = cJSON_GetObjectItemCaseSensitive(opensubsonic_server_root, "password");
if (cJSON_IsString(opensubsonic_server_password) && opensubsonic_server_password->valuestring != NULL) {
(*configObj)->opensubsonic_password = strdup(opensubsonic_server_password->valuestring);
}
// Make an object from scrobbler
cJSON* scrobbler_root = cJSON_GetObjectItemCaseSensitive(root, "scrobbler");
if (scrobbler_root == NULL) {
logger_log_error(__func__, "Error parsing JSON - scrobbler does not exist.");
cJSON_Delete(root);
return 1;
}
cJSON* scrobbler_listenbrainz_enable = cJSON_GetObjectItemCaseSensitive(scrobbler_root, "listenbrainz_enable");
if (cJSON_IsBool(scrobbler_listenbrainz_enable)) {
if (cJSON_IsTrue(scrobbler_listenbrainz_enable)) {
(*configObj)->listenbrainz_enable = true;
}
}
cJSON* scrobbler_listenbrainz_token = cJSON_GetObjectItemCaseSensitive(scrobbler_root, "listenbrainz_token");
if (cJSON_IsString(scrobbler_listenbrainz_token) && scrobbler_listenbrainz_token->valuestring != NULL) {
(*configObj)->listenbrainz_token = strdup(scrobbler_listenbrainz_token->valuestring);
}
cJSON* scrobbler_lastfm_enable = cJSON_GetObjectItemCaseSensitive(scrobbler_root, "lastfm_enable");
if (cJSON_IsBool(scrobbler_lastfm_enable)) {
if (cJSON_IsTrue(scrobbler_lastfm_enable)) {
(*configObj)->lastfm_enable = true;
}
}
cJSON* scrobbler_lastfm_username = cJSON_GetObjectItemCaseSensitive(scrobbler_root, "lastfm_username");
if (cJSON_IsString(scrobbler_lastfm_username) && scrobbler_lastfm_username->valuestring != NULL) {
(*configObj)->lastfm_username = strdup(scrobbler_lastfm_username->valuestring);
}
cJSON* scrobbler_lastfm_password = cJSON_GetObjectItemCaseSensitive(scrobbler_root, "lastfm_password");
if (cJSON_IsString(scrobbler_lastfm_password) && scrobbler_lastfm_password->valuestring != NULL) {
(*configObj)->lastfm_password = strdup(scrobbler_lastfm_password->valuestring);
}
cJSON* scrobbler_lastfm_api_key = cJSON_GetObjectItemCaseSensitive(scrobbler_root, "lastfm_api_key");
if (cJSON_IsString(scrobbler_lastfm_api_key) && scrobbler_lastfm_api_key->valuestring != NULL) {
(*configObj)->lastfm_api_key = strdup(scrobbler_lastfm_api_key->valuestring);
}
cJSON* scrobbler_lastfm_api_secret = cJSON_GetObjectItemCaseSensitive(scrobbler_root, "lastfm_api_secret");
if (cJSON_IsString(scrobbler_lastfm_api_secret) && scrobbler_lastfm_api_secret->valuestring != NULL) {
(*configObj)->lastfm_api_secret = strdup(scrobbler_lastfm_api_secret->valuestring);
}
cJSON* scrobbler_lastfm_api_session_key = cJSON_GetObjectItemCaseSensitive(scrobbler_root, "lastfm_session_key");
if (cJSON_IsString(scrobbler_lastfm_api_session_key) && scrobbler_lastfm_api_session_key->valuestring != NULL) {
(*configObj)->lastfm_api_session_key = strdup(scrobbler_lastfm_api_session_key->valuestring);
}
// Make an object from discord-rpc
cJSON* discordrpc_root = cJSON_GetObjectItemCaseSensitive(root, "discord_rpc");
if (discordrpc_root == NULL) {
logger_log_error(__func__, "Error parsing JSON - discord-rpc does not exist.");
cJSON_Delete(root);
return 1;
}
cJSON* discordrpc_enable = cJSON_GetObjectItemCaseSensitive(discordrpc_root, "enable");
if (cJSON_IsBool(discordrpc_enable)) {
if (cJSON_IsTrue(discordrpc_enable)) {
(*configObj)->discordrpc_enable = true;
}
}
cJSON* discordrpc_method = cJSON_GetObjectItemCaseSensitive(discordrpc_root, "method");
if (cJSON_IsNumber(discordrpc_method)) {
(*configObj)->discordrpc_method = discordrpc_method->valueint;
}
// Make an object from audio
cJSON* audio_root = cJSON_GetObjectItemCaseSensitive(root, "audio");
if (audio_root == NULL) {
logger_log_error(__func__, "Error parsing JSON - audio does not exist.");
cJSON_Delete(root);
return 1;
}
// Make an object from equalizer
cJSON* equalizer_root = cJSON_GetObjectItemCaseSensitive(audio_root, "equalizer");
if (equalizer_root == NULL) {
logger_log_error(__func__, "Error parsing JSON - equalizer does not exist.");
cJSON_Delete(root);
return 1;
}
cJSON* audio_equalizer_enable = cJSON_GetObjectItemCaseSensitive(equalizer_root, "enable");
if (cJSON_IsBool(audio_equalizer_enable)) {
if (cJSON_IsTrue(audio_equalizer_enable)) {
(*configObj)->audio_equalizer_enable = true;
}
}
cJSON* audio_equalizer_followPitch = cJSON_GetObjectItemCaseSensitive(equalizer_root, "followPitch");
if (cJSON_IsBool(audio_equalizer_followPitch)) {
if (cJSON_IsTrue(audio_equalizer_followPitch)) {
(*configObj)->audio_equalizer_followPitch = true;
}
}
// Fetch the equalizer graph array, and allocate memory for it
cJSON* equalizer_graph_array = cJSON_GetObjectItemCaseSensitive(equalizer_root, "graph");
if (equalizer_graph_array == NULL) {
logger_log_error(__func__, "Error parsing JSON - graph does not exist.");
cJSON_Delete(root);
return 1;
}
(*configObj)->audio_equalizer_graphCount = cJSON_GetArraySize(equalizer_graph_array);
(*configObj)->audio_equalizer_graph = (configHandler_eqGraph_t*)malloc((*configObj)->audio_equalizer_graphCount * sizeof(configHandler_eqGraph_t));
if ((*configObj)->audio_equalizer_graph == NULL) {
logger_log_error(__func__, "malloc() failed.");
cJSON_Delete(root);
return 1;
}
// Initialize more struct variables
for (size_t i = 0; i < (*configObj)->audio_equalizer_graphCount; i++) {
(*configObj)->audio_equalizer_graph[i].bandwidth = 0.00;
(*configObj)->audio_equalizer_graph[i].frequency = 0;
(*configObj)->audio_equalizer_graph[i].gain = 0.00;
(*configObj)->audio_equalizer_graph[i].bypass = false;
}
for (size_t i = 0; i < (*configObj)->audio_equalizer_graphCount; i++) {
cJSON* array_equalizer_graph_root = cJSON_GetArrayItem(equalizer_graph_array, (int)i);
if (array_equalizer_graph_root == NULL) {
logger_log_error(__func__, "Error parsing JSON - Could not fetch graph index %d.", i);
cJSON_Delete(root);
return 1;
}
cJSON* audio_equalizer_graph_bandwidth = cJSON_GetObjectItemCaseSensitive(array_equalizer_graph_root, "bandwidth");
if (cJSON_IsNumber(audio_equalizer_graph_bandwidth)) {
(*configObj)->audio_equalizer_graph[i].bandwidth = audio_equalizer_graph_bandwidth->valuedouble;
}
cJSON* audio_equalizer_graph_frequency = cJSON_GetObjectItemCaseSensitive(array_equalizer_graph_root, "frequency");
if (cJSON_IsNumber(audio_equalizer_graph_frequency)) {
(*configObj)->audio_equalizer_graph[i].frequency = audio_equalizer_graph_frequency->valueint;
}
cJSON* audio_equalizer_graph_gain = cJSON_GetObjectItemCaseSensitive(array_equalizer_graph_root, "gain");
if (cJSON_IsNumber(audio_equalizer_graph_gain)) {
(*configObj)->audio_equalizer_graph[i].gain = audio_equalizer_graph_gain->valuedouble;
}
cJSON* audio_equalizer_graph_bypass = cJSON_GetObjectItemCaseSensitive(array_equalizer_graph_root, "bypass");
if (cJSON_IsBool(audio_equalizer_graph_bypass)) {
if (cJSON_IsTrue(audio_equalizer_graph_bypass)) {
(*configObj)->audio_equalizer_graph[i].bypass = true;
}
}
}
// Make an object from pitch
cJSON* pitch_root = cJSON_GetObjectItemCaseSensitive(audio_root, "pitch");
if (pitch_root == NULL) {
logger_log_error(__func__, "Error parsing JSON - pitch does not exist.");
cJSON_Delete(root);
return 1;
}
cJSON* audio_pitch_enable = cJSON_GetObjectItemCaseSensitive(pitch_root, "enable");
if (cJSON_IsBool(audio_pitch_enable)) {
if (cJSON_IsTrue(audio_pitch_enable)) {
(*configObj)->audio_pitch_enable = true;
}
}
cJSON* audio_pitch_cents = cJSON_GetObjectItemCaseSensitive(pitch_root, "cents");
if (cJSON_IsNumber(audio_pitch_cents)) {
(*configObj)->audio_pitch_cents = audio_pitch_cents->valuedouble;
}
cJSON* audio_pitch_rate = cJSON_GetObjectItemCaseSensitive(pitch_root, "rate");
if (cJSON_IsNumber(audio_pitch_rate)) {
(*configObj)->audio_pitch_rate = audio_pitch_rate->valuedouble;
}
// Make an object from reverb
cJSON* reverb_root = cJSON_GetObjectItemCaseSensitive(audio_root, "reverb");
if (reverb_root == NULL) {
logger_log_error(__func__, "Error parsing JSON - reverb does not exist.");
cJSON_Delete(root);
return 1;
}
cJSON* audio_reverb_enable = cJSON_GetObjectItemCaseSensitive(reverb_root, "enable");
if (cJSON_IsBool(audio_reverb_enable)) {
if (cJSON_IsTrue(audio_reverb_enable)) {
(*configObj)->audio_reverb_enable = true;
}
}
cJSON* audio_reverb_wetDryMix = cJSON_GetObjectItemCaseSensitive(reverb_root, "wetDryMix");
if (cJSON_IsNumber(audio_reverb_wetDryMix)) {
(*configObj)->audio_reverb_wetDryMix = audio_reverb_wetDryMix->valuedouble;
}
// Make an object from lv2
cJSON* lv2_root = cJSON_GetObjectItemCaseSensitive(audio_root, "lv2");
if (lv2_root == NULL) {
logger_log_error(__func__, "Error parsing JSON - lv2 does not exist.");
cJSON_Delete(root);
return 1;
}
// Make an object from lsp_para_x32_lr
cJSON* lsp_para_x32_lr_root = cJSON_GetObjectItemCaseSensitive(lv2_root, "lsp_para_x32_lr");
if (lsp_para_x32_lr_root == NULL) {
logger_log_error(__func__, "Error parsing JSON - lsp_para_x32_lr does not exist.");
cJSON_Delete(root);
return 1;
}
cJSON* lsp_para_x32_lr_filter_name = cJSON_GetObjectItemCaseSensitive(lsp_para_x32_lr_root, "filter_name");
if (cJSON_IsString(lsp_para_x32_lr_filter_name) && lsp_para_x32_lr_filter_name->valuestring != NULL) {
(*configObj)->lv2_parax32_filter_name = strdup(lsp_para_x32_lr_filter_name->valuestring);
}
cJSON* lsp_para_x32_lr_filter_type_left = cJSON_GetObjectItemCaseSensitive(lsp_para_x32_lr_root, "filter_type_left");
if (cJSON_IsString(lsp_para_x32_lr_filter_type_left) && lsp_para_x32_lr_filter_type_left->valuestring != NULL) {
(*configObj)->lv2_parax32_filter_type_left = strdup(lsp_para_x32_lr_filter_type_left->valuestring);
}
cJSON* lsp_para_x32_lr_filter_type_right = cJSON_GetObjectItemCaseSensitive(lsp_para_x32_lr_root, "filter_type_right");
if (cJSON_IsString(lsp_para_x32_lr_filter_type_right) && lsp_para_x32_lr_filter_type_right->valuestring != NULL) {
(*configObj)->lv2_parax32_filter_type_right = strdup(lsp_para_x32_lr_filter_type_right->valuestring);
}
cJSON* lsp_para_x32_lr_gain_left = cJSON_GetObjectItemCaseSensitive(lsp_para_x32_lr_root, "gain_left");
if (cJSON_IsString(lsp_para_x32_lr_gain_left) && lsp_para_x32_lr_gain_left->valuestring != NULL) {
(*configObj)->lv2_parax32_gain_left = strdup(lsp_para_x32_lr_gain_left->valuestring);
}
cJSON* lsp_para_x32_lr_gain_right = cJSON_GetObjectItemCaseSensitive(lsp_para_x32_lr_root, "gain_right");
if (cJSON_IsString(lsp_para_x32_lr_gain_right) && lsp_para_x32_lr_gain_right->valuestring != NULL) {
(*configObj)->lv2_parax32_gain_right = strdup(lsp_para_x32_lr_gain_right->valuestring);
}
cJSON* lsp_para_x32_lr_quality_left = cJSON_GetObjectItemCaseSensitive(lsp_para_x32_lr_root, "quality_left");
if (cJSON_IsString(lsp_para_x32_lr_quality_left) && lsp_para_x32_lr_quality_left->valuestring != NULL) {
(*configObj)->lv2_parax32_quality_left = strdup(lsp_para_x32_lr_quality_left->valuestring);
}
cJSON* lsp_para_x32_lr_quality_right = cJSON_GetObjectItemCaseSensitive(lsp_para_x32_lr_root, "quality_right");
if (cJSON_IsString(lsp_para_x32_lr_quality_right) && lsp_para_x32_lr_quality_right->valuestring != NULL) {
(*configObj)->lv2_parax32_quality_right = strdup(lsp_para_x32_lr_quality_right->valuestring);
}
cJSON* lsp_para_x32_lr_frequency_left = cJSON_GetObjectItemCaseSensitive(lsp_para_x32_lr_root, "frequency_left");
if (cJSON_IsString(lsp_para_x32_lr_frequency_left) && lsp_para_x32_lr_frequency_left->valuestring != NULL) {
(*configObj)->lv2_parax32_frequency_left = strdup(lsp_para_x32_lr_frequency_left->valuestring);
}
cJSON* lsp_para_x32_lr_frequency_right = cJSON_GetObjectItemCaseSensitive(lsp_para_x32_lr_root, "frequency_right");
if (cJSON_IsString(lsp_para_x32_lr_frequency_right) && lsp_para_x32_lr_frequency_right->valuestring != NULL) {
(*configObj)->lv2_parax32_frequency_right = strdup(lsp_para_x32_lr_frequency_right->valuestring);
}
cJSON_Delete(root);
logger_log_general(__func__, "Successfully read configuration file.");
return 0;
}
void configHandler_Free(configHandler_config_t** configObj) {
if ((*configObj)->opensubsonic_protocol != NULL) { free((*configObj)->opensubsonic_protocol); }
if ((*configObj)->opensubsonic_server != NULL) { free((*configObj)->opensubsonic_server); }
if ((*configObj)->opensubsonic_username != NULL) { free((*configObj)->opensubsonic_username); }
if ((*configObj)->opensubsonic_password != NULL) { free((*configObj)->opensubsonic_password); }
if ((*configObj)->internal_opensubsonic_version != NULL) { free((*configObj)->internal_opensubsonic_version); }
if ((*configObj)->internal_opensubsonic_clientName != NULL) { free((*configObj)->internal_opensubsonic_clientName); }
if ((*configObj)->internal_opensubsonic_loginSalt != NULL) { free((*configObj)->internal_opensubsonic_loginSalt); }
if ((*configObj)->internal_opensubsonic_loginToken != NULL) { free((*configObj)->internal_opensubsonic_loginToken); }
if ((*configObj)->listenbrainz_token != NULL) { free((*configObj)->listenbrainz_token); }
if ((*configObj)->lastfm_username != NULL) { free((*configObj)->lastfm_username); }
if ((*configObj)->lastfm_password != NULL) { free((*configObj)->lastfm_password); }
if ((*configObj)->lastfm_api_key != NULL) { free((*configObj)->lastfm_api_key); }
if ((*configObj)->lastfm_api_secret != NULL) { free((*configObj)->lastfm_api_secret); }
if ((*configObj)->lastfm_api_session_key != NULL) { free((*configObj)->lastfm_api_session_key); }
if ((*configObj)->audio_equalizer_graph != NULL) { free((*configObj)->audio_equalizer_graph); }
if (*configObj != NULL) { free(*configObj); }
}
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