/*
* Private variables
*/
-static const char *config_keys[] =
+struct wh_callback_s
{
- "URL", "User", "Password"
-};
-static int config_keys_num = STATIC_ARRAY_SIZE (config_keys);
+ char *location;
-static char *location = NULL;
+ char *user;
+ char *pass;
+ char *credentials;
-char *user;
-char *pass;
-char *credentials;
+ CURL *curl;
+ char curl_errbuf[CURL_ERROR_SIZE];
-CURL *curl;
-char curl_errbuf[CURL_ERROR_SIZE];
+ char send_buffer[4096];
+ size_t send_buffer_free;
+ size_t send_buffer_fill;
+ time_t send_buffer_init_time;
-#define SEND_BUFFER_SIZE 4096
-static char send_buffer[SEND_BUFFER_SIZE];
-static size_t send_buffer_free;
-static size_t send_buffer_fill;
-static time_t send_buffer_init_time;
+ pthread_mutex_t send_lock;
+};
+typedef struct wh_callback_s wh_callback_t;
-static pthread_mutex_t send_lock = PTHREAD_MUTEX_INITIALIZER;
+static void wh_reset_buffer (wh_callback_t *cb) /* {{{ */
+{
+ memset (cb->send_buffer, 0, sizeof (cb->send_buffer));
+ cb->send_buffer_free = sizeof (cb->send_buffer);
+ cb->send_buffer_fill = 0;
+ cb->send_buffer_init_time = time (NULL);
+} /* }}} wh_reset_buffer */
-static void wh_init_buffer (void) /* {{{ */
+static int wh_send_buffer (wh_callback_t *cb) /* {{{ */
{
- memset (send_buffer, 0, sizeof (send_buffer));
- send_buffer_free = sizeof (send_buffer);
- send_buffer_fill = 0;
- send_buffer_init_time = time (NULL);
-} /* }}} wh_init_buffer */
+ int status = 0;
+
+ curl_easy_setopt (cb->curl, CURLOPT_POSTFIELDS, cb->send_buffer);
+ status = curl_easy_perform (cb->curl);
+ if (status != 0)
+ {
+ ERROR ("write_http plugin: curl_easy_perform failed with "
+ "staus %i: %s",
+ status, cb->curl_errbuf);
+ }
+ return (status);
+} /* }}} wh_send_buffer */
-static int wh_init(void) /* {{{ */
+static int wh_callback_init (wh_callback_t *cb) /* {{{ */
{
+ struct curl_slist *headers;
- curl = curl_easy_init ();
+ if (cb->curl != NULL)
+ return (0);
- if (curl == NULL)
+ cb->curl = curl_easy_init ();
+ if (cb->curl == NULL)
{
ERROR ("curl plugin: curl_easy_init failed.");
return (-1);
}
- struct curl_slist *headers=NULL;
+ curl_easy_setopt (cb->curl, CURLOPT_USERAGENT, PACKAGE_NAME"/"PACKAGE_VERSION);
- curl_easy_setopt (curl, CURLOPT_USERAGENT, PACKAGE_NAME"/"PACKAGE_VERSION);
+ headers = NULL;
+ headers = curl_slist_append (headers, "Accept: */*");
+ headers = curl_slist_append (headers, "Content-Type: text/plain");
+ curl_easy_setopt (cb->curl, CURLOPT_HTTPHEADER, headers);
- headers = curl_slist_append(headers, "Accept: */*");
- headers = curl_slist_append(headers, "Content-Type: text/plain");
- curl_easy_setopt (curl, CURLOPT_HTTPHEADER, headers);
+ curl_easy_setopt (cb->curl, CURLOPT_ERRORBUFFER, cb->curl_errbuf);
+ curl_easy_setopt (cb->curl, CURLOPT_URL, cb->location);
- curl_easy_setopt (curl, CURLOPT_ERRORBUFFER, curl_errbuf);
- curl_easy_setopt (curl, CURLOPT_URL, location);
-
- if (user != NULL)
+ if (cb->user != NULL)
{
size_t credentials_size;
- credentials_size = strlen (user) + 2;
- if (pass != NULL)
- credentials_size += strlen (pass);
+ credentials_size = strlen (cb->user) + 2;
+ if (cb->pass != NULL)
+ credentials_size += strlen (cb->pass);
- credentials = (char *) malloc (credentials_size);
- if (credentials == NULL)
+ cb->credentials = (char *) malloc (credentials_size);
+ if (cb->credentials == NULL)
{
ERROR ("curl plugin: malloc failed.");
return (-1);
}
- ssnprintf (credentials, credentials_size, "%s:%s",
- user, (pass == NULL) ? "" : pass);
- curl_easy_setopt (curl, CURLOPT_USERPWD, credentials);
- curl_easy_setopt (curl, CURLOPT_HTTPAUTH, CURLAUTH_DIGEST);
+ ssnprintf (cb->credentials, credentials_size, "%s:%s",
+ cb->user, (cb->pass == NULL) ? "" : cb->pass);
+ curl_easy_setopt (cb->curl, CURLOPT_USERPWD, cb->credentials);
+ curl_easy_setopt (cb->curl, CURLOPT_HTTPAUTH, CURLAUTH_DIGEST);
}
- wh_init_buffer ();
+ wh_reset_buffer (cb);
return (0);
-} /* }}} */
+} /* }}} int wh_callback_init */
+
+static int wh_flush_nolock (int timeout, wh_callback_t *cb) /* {{{ */
+{
+ int status;
+
+ DEBUG ("write_http plugin: wh_flush_nolock: timeout = %i; "
+ "send_buffer_fill = %zu;",
+ timeout, cb->send_buffer_fill);
+
+ if (timeout > 0)
+ {
+ time_t now;
+
+ now = time (NULL);
+ if ((cb->send_buffer_init_time + timeout) > now)
+ return (0);
+ }
+
+ if (cb->send_buffer_fill <= 0)
+ {
+ cb->send_buffer_init_time = time (NULL);
+ return (0);
+ }
+
+ status = wh_send_buffer (cb);
+ wh_reset_buffer (cb);
+
+ return (status);
+} /* }}} wh_flush_nolock */
+
+static int wh_flush (int timeout, /* {{{ */
+ const char *identifier __attribute__((unused)),
+ user_data_t *user_data)
+{
+ wh_callback_t *cb;
+ int status;
+
+ if (user_data == NULL)
+ return (-EINVAL);
+
+ cb = user_data->data;
+
+ pthread_mutex_lock (&cb->send_lock);
+
+ if (cb->curl == NULL)
+ {
+ status = wh_callback_init (cb);
+ if (status != 0)
+ {
+ ERROR ("write_http plugin: wh_callback_init failed.");
+ pthread_mutex_unlock (&cb->send_lock);
+ return (-1);
+ }
+ }
+
+ status = wh_flush_nolock (timeout, cb);
+ pthread_mutex_unlock (&cb->send_lock);
+
+ return (status);
+} /* }}} int wh_flush */
+
+static void wh_callback_free (void *data) /* {{{ */
+{
+ wh_callback_t *cb;
+
+ if (data == NULL)
+ return;
+
+ cb = data;
+
+ wh_flush_nolock (/* timeout = */ -1, cb);
+
+ curl_easy_cleanup (cb->curl);
+ sfree (cb->location);
+ sfree (cb->user);
+ sfree (cb->pass);
+ sfree (cb->credentials);
+
+ sfree (cb);
+} /* }}} void wh_callback_free */
static int wh_value_list_to_string (char *buffer, /* {{{ */
size_t buffer_size,
return (0);
} /* }}} int wh_value_list_to_string */
-static int wh_config (const char *key, const char *value) /* {{{ */
-{
- if (strcasecmp ("URL", key) == 0)
- {
- if (location != NULL)
- free (location);
- location = strdup (value);
- if (location != NULL)
- {
- int len = strlen (location);
- while ((len > 0) && (location[len - 1] == '/'))
- {
- len--;
- location[len] = '\0';
- }
- if (len <= 0)
- {
- free (location);
- location = NULL;
- }
- }
- }
- else if (strcasecmp ("User", key) == 0)
- {
- if (user != NULL)
- free (user);
- user = strdup (value);
- if (user != NULL)
- {
- int len = strlen (user);
- while ((len > 0) && (user[len - 1] == '/'))
- {
- len--;
- user[len] = '\0';
- }
- if (len <= 0)
- {
- free (user);
- user = NULL;
- }
- }
- }
- else if (strcasecmp ("Password", key) == 0)
- {
- if (pass != NULL)
- free (pass);
- pass = strdup (value);
- if (pass != NULL)
- {
- int len = strlen (pass);
- while ((len > 0) && (pass[len - 1] == '/'))
- {
- len--;
- pass[len] = '\0';
- }
- if (len <= 0)
- {
- free (pass);
- pass = NULL;
- }
- }
- }
- else
- {
- return (-1);
- }
- return (0);
-} /* }}} int wh_config */
-
-static int wh_send_buffer (char *buffer) /* {{{ */
-{
- int status = 0;
-
- curl_easy_setopt (curl, CURLOPT_POSTFIELDS, buffer);
- status = curl_easy_perform (curl);
- if (status != 0)
- {
- ERROR ("write_http plugin: curl_easy_perform failed with "
- "staus %i: %s",
- status, curl_errbuf);
- }
- return (status);
-} /* }}} wh_send_buffer */
-
-static int wh_flush_nolock (int timeout) /* {{{ */
+static int config_set_string (char **ret_string, /* {{{ */
+ oconfig_item_t *ci)
{
- int status;
+ char *string;
- DEBUG ("write_http plugin: wh_flush_nolock: timeout = %i; "
- "send_buffer =\n %s", timeout, send_buffer);
-
- if (timeout > 0)
+ if ((ci->values_num != 1)
+ || (ci->values[0].type != OCONFIG_TYPE_STRING))
{
- time_t now;
-
- now = time (NULL);
- if ((send_buffer_init_time + timeout) > now)
- return (0);
+ WARNING ("write_http plugin: The `%s' config option "
+ "needs exactly one string argument.", ci->key);
+ return (-1);
}
- if (send_buffer_fill <= 0)
+ string = strdup (ci->values[0].value.string);
+ if (string == NULL)
{
- send_buffer_init_time = time (NULL);
- return (0);
+ ERROR ("write_http plugin: strdup failed.");
+ return (-1);
}
- status = wh_send_buffer (send_buffer);
- wh_init_buffer ();
+ if (*ret_string != NULL)
+ free (*ret_string);
+ *ret_string = string;
- return (status);
-} /* }}} wh_flush_nolock */
-
-static int wh_flush (int timeout, /* {{{ */
- const char *identifier __attribute__((unused)),
- user_data_t *user_data __attribute__((unused)))
-{
- int status;
-
- pthread_mutex_lock (&send_lock);
- status = wh_flush_nolock (timeout);
- pthread_mutex_unlock (&send_lock);
-
- return (status);
-} /* }}} int wh_flush */
+ return (0);
+} /* }}} int config_set_string */
-static int wh_write_command (const data_set_t *ds, const value_list_t *vl) /* {{{ */
+static int wh_write_command (const data_set_t *ds, const value_list_t *vl, /* {{{ */
+ wh_callback_t *cb)
{
char key[10*DATA_MAX_NAME_LEN];
char values[512];
return (-1);
}
- pthread_mutex_lock (&send_lock);
+ pthread_mutex_lock (&cb->send_lock);
- /* Check if we have enough space for this command. */
- if (command_len >= send_buffer_free)
+ if (cb->curl == NULL)
+ {
+ status = wh_callback_init (cb);
+ if (status != 0)
+ {
+ ERROR ("write_http plugin: wh_callback_init failed.");
+ pthread_mutex_unlock (&cb->send_lock);
+ return (-1);
+ }
+ }
+
+ if (command_len >= cb->send_buffer_free)
{
- status = wh_flush_nolock (/* timeout = */ -1);
+ status = wh_flush_nolock (/* timeout = */ -1, cb);
if (status != 0)
{
- pthread_mutex_unlock (&send_lock);
- return status;
+ pthread_mutex_unlock (&cb->send_lock);
+ return (status);
}
}
- assert (command_len < send_buffer_free);
+ assert (command_len < cb->send_buffer_free);
/* `command_len + 1' because `command_len' does not include the
* trailing null byte. Neither does `send_buffer_fill'. */
- memcpy (send_buffer + send_buffer_fill, command, command_len + 1);
- send_buffer_fill += command_len;
- send_buffer_free -= command_len;
+ memcpy (cb->send_buffer + cb->send_buffer_fill,
+ command, command_len + 1);
+ cb->send_buffer_fill += command_len;
+ cb->send_buffer_free -= command_len;
+
+ DEBUG ("write_http plugin: <%s> buffer %zu/%zu (%g%%) \"%s\"",
+ cb->location,
+ cb->send_buffer_fill, sizeof (cb->send_buffer),
+ 100.0 * ((double) cb->send_buffer_fill) / ((double) sizeof (cb->send_buffer)),
+ command);
- pthread_mutex_unlock (&send_lock);
+ /* Check if we have enough space for this command. */
+ pthread_mutex_unlock (&cb->send_lock);
return (0);
} /* }}} int wh_write_command */
static int wh_write (const data_set_t *ds, const value_list_t *vl, /* {{{ */
- user_data_t __attribute__((unused)) *user_data)
+ user_data_t *user_data)
{
+ wh_callback_t *cb;
int status;
- status = wh_write_command (ds, vl);
+ if (user_data == NULL)
+ return (-EINVAL);
+ cb = user_data->data;
+
+ status = wh_write_command (ds, vl, cb);
return (status);
} /* }}} int wh_write */
-static int wh_shutdown (void) /* {{{ */
+static int wh_config_url (oconfig_item_t *ci) /* {{{ */
{
- wh_flush_nolock (/* timeout = */ -1);
- curl_easy_cleanup(curl);
+ wh_callback_t *cb;
+ user_data_t user_data;
+ int i;
+
+ cb = malloc (sizeof (*cb));
+ if (cb == NULL)
+ {
+ ERROR ("write_http plugin: malloc failed.");
+ return (-1);
+ }
+ memset (cb, 0, sizeof (*cb));
+
+ pthread_mutex_init (&cb->send_lock, /* attr = */ NULL);
+
+ config_set_string (&cb->location, ci);
+ if (cb->location == NULL)
+ return (-1);
+
+ for (i = 0; i < ci->children_num; i++)
+ {
+ oconfig_item_t *child = ci->children + i;
+
+ if (strcasecmp ("User", child->key) == 0)
+ config_set_string (&cb->user, child);
+ else if (strcasecmp ("Password", child->key) == 0)
+ config_set_string (&cb->pass, child);
+ else
+ {
+ ERROR ("write_http plugin: Invalid configuration "
+ "option: %s.", child->key);
+ }
+ }
+
+ DEBUG ("write_http: Registering write callback with URL %s",
+ cb->location);
+
+ memset (&user_data, 0, sizeof (user_data));
+ user_data.data = cb;
+ user_data.free_func = NULL;
+ plugin_register_flush ("write_http", wh_flush, &user_data);
+
+ user_data.free_func = wh_callback_free;
+ plugin_register_write ("write_http", wh_write, &user_data);
+
return (0);
-} /* }}} int wh_shutdown */
+} /* }}} int wh_config_url */
+
+static int wh_config (oconfig_item_t *ci) /* {{{ */
+{
+ int i;
+
+ for (i = 0; i < ci->children_num; i++)
+ {
+ oconfig_item_t *child = ci->children + i;
+
+ if (strcasecmp ("URL", child->key) == 0)
+ wh_config_url (child);
+ else
+ {
+ ERROR ("write_http plugin: Invalid configuration "
+ "option: %s.", child->key);
+ }
+ }
+
+ return (0);
+} /* }}} int wh_config */
void module_register (void) /* {{{ */
{
- plugin_register_init("write_http", wh_init);
- plugin_register_config ("write_http", wh_config,
- config_keys, config_keys_num);
- plugin_register_write ("write_http", wh_write, /* user_data = */ NULL);
- plugin_register_flush ("write_http", wh_flush, /* user_data = */ NULL);
- plugin_register_shutdown("write_http", wh_shutdown);
+ plugin_register_complex_config ("write_http", wh_config);
} /* }}} void module_register */
/* vim: set fdm=marker sw=8 ts=8 tw=78 et : */
projects / collectd.git / commitdiff