Add config and log

1 files changed, 146 insertions, 0 deletions

diff --git a/src/config.c b/src/config.c
new file mode 100644
index 0000000..c4aecf0
--- /dev/null
+++ b/src/config.c
@@ -0,0 +1,146 @@
+#define _POSIX_C_SOURCE 200809L
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <err.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <limits.h>
+#include <libgen.h>
+#include <jansson.h>
+#include "string-util.h"
+#include "config.h"
+#include "log.h"
+
+#define CONFIG_PATH_SUFFIX "/.config/ap_client/config"
+
+struct config _config;
+const struct config *config = (const struct config *)&_config;
+
+char *get_config_path()
+{
+    char *home = getenv("HOME");
+    if (!home || !*home) {
+        return NULL;
+    }
+    char config_path[PATH_MAX];
+    strlcpy(config_path, home, sizeof(config_path));
+    strlcat(config_path, CONFIG_PATH_SUFFIX, sizeof(config_path));
+    return strdup(config_path);
+}
+
+void config_load()
+{
+    json_t *root;
+    json_error_t error;
+
+    char *path = get_config_path();
+    root = json_load_file(path, 0, &error);
+    if (!root) {
+        log_msg(LOG_ERROR, "load_config", "json parse error: line %d: %s",
+                error.line, error.text);
+        free(path);
+        return;
+    }
+    free(path);
+
+    if (!json_is_object(root)) {
+        log_msg(LOG_ERROR, "load_config", "json root is not object");
+        json_decref(root);
+        return;
+    }
+
+    json_t *instance_url = json_object_get(root, "instance_url");
+    if (json_is_string(instance_url)) {
+        _config.instance_url = strdup(json_string_value(instance_url));
+    }
+
+    json_t *client_id = json_object_get(root, "client_id");
+    if (json_is_string(client_id)) {
+        _config.client_id = strdup(json_string_value(client_id));
+    }
+
+    json_t *client_secret = json_object_get(root, "client_secret");
+    if (json_is_string(client_secret)) {
+        _config.client_secret = strdup(json_string_value(client_secret));
+    }
+
+    json_t *access_token = json_object_get(root, "access_token");
+    if (json_is_string(access_token)) {
+        _config.access_token = strdup(json_string_value(access_token));
+    }
+
+    json_decref(root);
+}
+
+int config_save()
+{
+    json_t *root;
+    json_error_t error;
+
+    root = json_pack_ex(&error, 1, "{s:s, s:s, s:s, s:s}", "instance_url",
+            _config.instance_url, "client_id", _config.client_id,
+            "client_secret", _config.client_secret, "access_token",
+            _config.access_token);
+
+    if (!root) {
+        log_msg(LOG_ERROR, "register_app", "json pack error: line %d: %s",
+                error.line, error.text);
+        return -1;
+    }
+
+    char *config_path = get_config_path();
+    struct stat st;
+    char *dir = dirname(config_path);
+    if (stat(dir, &st)) {
+        if (mkdir(dir, S_IRWXU)) {
+            free(config_path);
+            log_msg(LOG_ERROR, "load_config", "failed to create config dir");
+            return -1;
+        }
+    }
+    free(config_path);
+
+    if (json_dump_file(root, get_config_path(), 0)) {
+        log_msg(LOG_ERROR, "load_config", "unable to save json");
+        json_decref(root);
+        return -1;
+    }
+
+    json_decref(root);
+    return 0;
+}
+
+void config_set_client_id(const char *cid)
+{
+    _config.client_id = strdup(cid);
+}
+
+void config_set_client_secret(const char *cs)
+{
+    _config.client_secret = strdup(cs);
+}
+
+void config_set_instance_url(const char *iu)
+{
+    printf("updating url: %s", iu);
+    _config.instance_url = strdup(iu);
+}
+
+void config_set_access_token(const char *a)
+{
+    _config.access_token = strdup(a);
+}
+
+void config_cleanup()
+{
+    if (_config.client_id)
+        free(_config.client_id);
+    if (_config.client_secret)
+        free(_config.client_secret);
+    if (_config.instance_url)
+        free(_config.instance_url);
+    if (_config.access_token)
+        free(_config.access_token);
+}