Description [src]

final class Soup.Logger : GObject.Object {
  /* No available fields */

Debug logging support

SoupLogger watches a SoupSession and logs the HTTP traffic that it generates, for debugging purposes. Many applications use an environment variable to determine whether or not to use SoupLogger, and to determine the amount of debugging output.

To use SoupLogger, first create a logger with soup_logger_new(), optionally configure it with soup_logger_set_request_filter(), soup_logger_set_response_filter(), and soup_logger_set_printer(), and then attach it to a session (or multiple sessions) with soup_session_add_feature().

By default, the debugging output is sent to stdout, and looks something like:

> POST /unauth HTTP/1.1
> Soup-Debug-Timestamp: 1200171744
> Soup-Debug: SoupSession 1 (0x612190), SoupMessage 1 (0x617000), GSocket 1 (0x612220)
> Host: localhost
> Content-Type: text/plain
> Connection: close

< HTTP/1.1 201 Created
< Soup-Debug-Timestamp: 1200171744
< Soup-Debug: SoupMessage 1 (0x617000)
< Date: Sun, 12 Jan 2008 21:02:24 GMT
< Content-Length: 0

The Soup-Debug-Timestamp line gives the time (as a time_t) when the request was sent, or the response fully received.

The Soup-Debug line gives further debugging information about the SoupSession, SoupMessage, and GSocket involved; the hex numbers are the addresses of the objects in question (which may be useful if you are running in a debugger). The decimal IDs are simply counters that uniquely identify objects across the lifetime of the SoupLogger. In particular, this can be used to identify when multiple messages are sent across the same connection.

Currently, the request half of the message is logged just before the first byte of the request gets written to the network (from the SoupMessage::starting signal).

The response is logged just after the last byte of the response body is read from the network (from the SoupMessage::got-body or SoupMessage::got-informational signal), which means that the SoupMessage::got-headers signal, and anything triggered off it (such as SoupMessage::authenticate) will be emitted before the response headers are actually logged.

If the response doesn’t happen to trigger the SoupMessage::got-body nor SoupMessage::got-informational signals due to, for example, a cancellation before receiving the last byte of the response body, the response will still be logged on the event of the SoupMessage::finished signal.





Creates a new SoupLogger with the given debug level.

Instance methods


Get the maximum body size for logger.


Sets the maximum body size for logger (-1 means no limit).


Sets up an alternate log printing routine, if you don’t want the log to go to stdout.


Sets up a filter to determine the log level for a given request.


Sets up a filter to determine the log level for a given response.

Methods inherited from GObject (43)

Please see GObject for a full list of methods.



The level of logging output.


If SoupLogger:level is SOUP_LOGGER_LOG_BODY, this gives the maximum number of bytes of the body that will be logged. (-1 means “no limit”.)


Signals inherited from GObject (1)

The notify signal is emitted on an object when one of its properties has its value set through g_object_set_property(), g_object_set(), et al.

Class structure

struct SoupLoggerClass {
  GObjectClass parent_class;
Class members
  No description available.