SoupServer

SoupServer — HTTP server

Synopsis

                    SoupServer;
SoupServer*         soup_server_new                     (const char *optname1,
                                                         ...);
gboolean            soup_server_is_https                (SoupServer *server);
guint               soup_server_get_port                (SoupServer *server);
SoupSocket*         soup_server_get_listener            (SoupServer *server);
void                soup_server_run                     (SoupServer *server);
void                soup_server_run_async               (SoupServer *server);
void                soup_server_quit                    (SoupServer *server);
GMainContext*       soup_server_get_async_context       (SoupServer *server);

void                (*SoupServerCallback)               (SoupServer *server,
                                                         SoupMessage *msg,
                                                         const char *path,
                                                         GHashTable *query,
                                                         SoupClientContext *client,
                                                         gpointer user_data);
void                soup_server_add_handler             (SoupServer *server,
                                                         const char *path,
                                                         SoupServerCallback callback,
                                                         gpointer user_data,
                                                         GDestroyNotify destroy);
void                soup_server_remove_handler          (SoupServer *server,
                                                         const char *path);

typedef             SoupClientContext;
SoupSocket*         soup_client_context_get_socket      (SoupClientContext *client);
SoupAddress*        soup_client_context_get_address     (SoupClientContext *client);
const char*         soup_client_context_get_host        (SoupClientContext *client);
SoupAuthDomain*     soup_client_context_get_auth_domain (SoupClientContext *client);
const char*         soup_client_context_get_auth_user   (SoupClientContext *client);

void                soup_server_add_auth_domain         (SoupServer *server,
                                                         SoupAuthDomain *auth_domain);
void                soup_server_remove_auth_domain      (SoupServer *server,
                                                         SoupAuthDomain *auth_domain);

void                soup_server_pause_message           (SoupServer *server,
                                                         SoupMessage *msg);
void                soup_server_unpause_message         (SoupServer *server,
                                                         SoupMessage *msg);

#define             SOUP_SERVER_PORT
#define             SOUP_SERVER_INTERFACE
#define             SOUP_SERVER_SSL_CERT_FILE
#define             SOUP_SERVER_SSL_KEY_FILE
#define             SOUP_SERVER_ASYNC_CONTEXT
#define             SOUP_SERVER_RAW_PATHS
#define             SOUP_SERVER_SERVER_HEADER

Description

SoupServer implements a simple HTTP server.

To begin, create a server using soup_server_new(). Add at least one handler by calling soup_server_add_handler(); the handler will be called to process any requests underneath the path passed to soup_server_add_handler(). (If you want all requests to go to the same handler, just pass "/" (or NULL) for the path.) Any request that does not match any handler will automatically be returned to the client with a 404 (Not Found) status.

To add authentication to some or all paths, create an appropriate SoupAuthDomain (qv), and add it to the server via soup_server_add_auth_domain.

Additional processing options are available via SoupServer's signals; Connect to "request-started" to be notified every time a new request is being processed. (This gives you a chance to connect to the SoupMessage "got-" signals in case you want to do processing before the body has been fully read.)

Once the server is set up, start it processing connections by calling soup_server_run_async() or soup_server_run(). SoupServer runs via the glib main loop; if you need to have a server that runs in another thread (or merely isn't bound to the default main loop), create a GMainContext for it to use, and set that via the SOUP_SERVER_ASYNC_CONTEXT property.

Details

SoupServer

typedef struct {
	GObject parent;
} SoupServer;


soup_server_new ()

SoupServer*         soup_server_new                     (const char *optname1,
                                                         ...);

Creates a new SoupServer.

optname1 : name of first property to set
... : value of optname1, followed by additional property/value pairs
Returns : a new SoupServer

soup_server_is_https ()

gboolean            soup_server_is_https                (SoupServer *server);

Checks whether server is running plain http or https.

In order for a server to run https, you must set the SOUP_SERVER_SSL_CERT_FILE and SOUP_SERVER_SSL_KEY_FILE properties to provide it with an SSL certificate to use.

server : a SoupServer
Returns : TRUE if server is serving https.

soup_server_get_port ()

guint               soup_server_get_port                (SoupServer *server);

Gets the TCP port that server is listening on. This is most useful when you did not request a specific port (or explicitly requested SOUP_ADDRESS_ANY_PORT).

server : a SoupServer
Returns : the port server is listening on.

soup_server_get_listener ()

SoupSocket*         soup_server_get_listener            (SoupServer *server);

Gets server's listening socket. You should treat this as read-only; writing to it or modifiying it may cause server to malfunction.

server : a SoupServer
Returns : the listening socket.

soup_server_run ()

void                soup_server_run                     (SoupServer *server);

Starts server, causing it to listen for and process incoming connections. Unlike soup_server_run_async(), this creates a GMainLoop and runs it, and it will not return until someone calls soup_server_quit() to stop the server.

server : a SoupServer

soup_server_run_async ()

void                soup_server_run_async               (SoupServer *server);

Starts server, causing it to listen for and process incoming connections.

The server actually runs in server's GMainContext. It will not actually perform any processing unless the appropriate main loop is running. In the simple case where you did not set the server's SOUP_SERVER_ASYNC_CONTEXT property, this means the server will run whenever the glib main loop is running.

server : a SoupServer

soup_server_quit ()

void                soup_server_quit                    (SoupServer *server);

Stops processing for server. Call this to clean up after soup_server_run_async(), or to terminate a call to soup_server_run().

server is still in a working state after this call; you can start and stop a server as many times as you want.

server : a SoupServer

soup_server_get_async_context ()

GMainContext*       soup_server_get_async_context       (SoupServer *server);

Gets server's async_context. This does not add a ref to the context, so you will need to ref it yourself if you want it to outlive its server.

server : a SoupServer
Returns : server's GMainContext, which may be NULL

SoupServerCallback ()

void                (*SoupServerCallback)               (SoupServer *server,
                                                         SoupMessage *msg,
                                                         const char *path,
                                                         GHashTable *query,
                                                         SoupClientContext *client,
                                                         gpointer user_data);

A callback used to handle requests to a SoupServer. The callback will be invoked after receiving the request body; msg's method, request_headers, and request_body fields will be filled in.

path and query contain the likewise-named components of the Request-URI, subject to certain assumptions. By default, SoupServer decodes all percent-encoding in the URI path, such that "/foo%2Fbar" is treated the same as "/foo/bar". If your server is serving resources in some non-POSIX-filesystem namespace, you may want to distinguish those as two distinct paths. In that case, you can set the SOUP_SERVER_RAW_PATHS property when creating the SoupServer, and it will leave those characters undecoded. (You may want to call soup_uri_normalize() to decode any percent-encoded characters that you aren't handling specially.)

query contains the query component of the Request-URI parsed according to the rules for HTML form handling. Although this is the only commonly-used query string format in HTTP, there is nothing that actually requires that HTTP URIs use that format; if your server needs to use some other format, you can just ignore query, and call soup_message_get_uri() and parse the URI's query field yourself.

After determining what to do with the request, the callback must at a minimum call soup_message_set_status() (or soup_message_set_status_full()) on msg to set the response status code. Additionally, it may set response headers and/or fill in the response body.

If the callback cannot fully fill in the response before returning (eg, if it needs to wait for information from a database, or another network server), it should call soup_server_pause_message() to tell SoupServer to not send the response right away. When the response is ready, call soup_server_unpause_message() to cause it to be sent.

To send the response body a bit at a time using "chunked" encoding, first call soup_message_headers_set_encoding() to set SOUP_ENCODING_CHUNKED on the response_headers. Then call soup_message_body_append() (or soup_message_body_append_buffer()) to append each chunk as it becomes ready, and soup_server_unpause_message() to make sure it's running. (The server will automatically pause the message if it is using chunked encoding but no more chunks are available.) When you are done, call soup_message_body_complete() to indicate that no more chunks are coming.

server : the SoupServer
msg : the message being processed
path : the path component of msg's Request-URI
query : the parsed query component of msg's Request-URI
client : additional contextual information about the client
user_data : the data passed to soup_server_add_handler

soup_server_add_handler ()

void                soup_server_add_handler             (SoupServer *server,
                                                         const char *path,
                                                         SoupServerCallback callback,
                                                         gpointer user_data,
                                                         GDestroyNotify destroy);

Adds a handler to server for requests under path. See the documentation for SoupServerCallback for information about how callbacks should behave.

server : a SoupServer
path : the toplevel path for the handler
callback : callback to invoke for requests under path
user_data : data for callback
destroy : destroy notifier to free user_data

soup_server_remove_handler ()

void                soup_server_remove_handler          (SoupServer *server,
                                                         const char *path);

Removes the handler registered at path.

server : a SoupServer
path : the toplevel path for the handler

SoupClientContext

typedef struct SoupClientContext SoupClientContext;

A SoupClientContext provides additional information about the client making a particular request. In particular, you can use soup_client_context_get_auth_domain() and soup_client_context_get_auth_user() to determine if HTTP authentication was used successfully.

soup_client_context_get_address() and/or soup_client_context_get_host() can be used to get information for logging or debugging purposes. soup_client_context_get_socket() may also be of use in some situations (eg, tracking when multiple requests are made on the same connection).


soup_client_context_get_socket ()

SoupSocket*         soup_client_context_get_socket      (SoupClientContext *client);

Retrieves the SoupSocket that client is associated with.

If you are using this method to observe when multiple requests are made on the same persistent HTTP connection (eg, as the ntlm-test test program does), you will need to pay attention to socket destruction as well (either by using weak references, or by connecting to the "disconnected" signal), so that you do not get fooled when the allocator reuses the memory address of a previously-destroyed socket to represent a new socket.

client : a SoupClientContext
Returns : the SoupSocket that client is associated with.

soup_client_context_get_address ()

SoupAddress*        soup_client_context_get_address     (SoupClientContext *client);

Retrieves the SoupAddress associated with the remote end of a connection.

client : a SoupClientContext
Returns : the SoupAddress associated with the remote end of a connection.

soup_client_context_get_host ()

const char*         soup_client_context_get_host        (SoupClientContext *client);

Retrieves the IP address associated with the remote end of a connection. (If you want the actual hostname, you'll have to call soup_client_context_get_address() and then call the appropriate SoupAddress method to resolve it.)

client : a SoupClientContext
Returns : the IP address associated with the remote end of a connection.

soup_client_context_get_auth_domain ()

SoupAuthDomain*     soup_client_context_get_auth_domain (SoupClientContext *client);

Checks whether the request associated with client has been authenticated, and if so returns the SoupAuthDomain that authenticated it.

client : a SoupClientContext
Returns : a SoupAuthDomain, or NULL if the request was not authenticated.

soup_client_context_get_auth_user ()

const char*         soup_client_context_get_auth_user   (SoupClientContext *client);

Checks whether the request associated with client has been authenticated, and if so returns the username that the client authenticated as.

client : a SoupClientContext
Returns : the authenticated-as user, or NULL if the request was not authenticated.

soup_server_add_auth_domain ()

void                soup_server_add_auth_domain         (SoupServer *server,
                                                         SoupAuthDomain *auth_domain);

Adds an authentication domain to server. Each auth domain will have the chance to require authentication for each request that comes in; normally auth domains will require authentication for requests on certain paths that they have been set up to watch, or that meet other criteria set by the caller. If an auth domain determines that a request requires authentication (and the request doesn't contain authentication), server will automatically reject the request with an appropriate status (401 Unauthorized or 407 Proxy Authentication Required). If the request used the "100-continue" Expectation, server will reject it before the request body is sent.

server : a SoupServer
auth_domain : a SoupAuthDomain

soup_server_remove_auth_domain ()

void                soup_server_remove_auth_domain      (SoupServer *server,
                                                         SoupAuthDomain *auth_domain);

Removes auth_domain from server.

server : a SoupServer
auth_domain : a SoupAuthDomain

soup_server_pause_message ()

void                soup_server_pause_message           (SoupServer *server,
                                                         SoupMessage *msg);

Pauses I/O on msg. This can be used when you need to return from the server handler without having the full response ready yet. Use soup_server_unpause_message() to resume I/O.

server : a SoupServer
msg : a SoupMessage associated with server.

soup_server_unpause_message ()

void                soup_server_unpause_message         (SoupServer *server,
                                                         SoupMessage *msg);

Resumes I/O on msg. Use this to resume after calling soup_server_pause_message(), or after adding a new chunk to a chunked response.

I/O won't actually resume until you return to the main loop.

server : a SoupServer
msg : a SoupMessage associated with server.

SOUP_SERVER_PORT

#define SOUP_SERVER_PORT          "port"

Alias for the "port" property. (The port the server listens on.)


SOUP_SERVER_INTERFACE

#define SOUP_SERVER_INTERFACE     "interface"

Alias for the "interface" property. (The address of the network interface the server listens on.)


SOUP_SERVER_SSL_CERT_FILE

#define SOUP_SERVER_SSL_CERT_FILE "ssl-cert-file"

Alias for the "ssl-cert-file" property. (The file containing the SSL certificate for the server.)


SOUP_SERVER_SSL_KEY_FILE

#define SOUP_SERVER_SSL_KEY_FILE  "ssl-key-file"

Alias for the "ssl-key-file" property. (The file containing the SSL certificate key for the server.)


SOUP_SERVER_ASYNC_CONTEXT

#define SOUP_SERVER_ASYNC_CONTEXT "async-context"

Alias for the "async-context" property. (The server's GMainContext.)


SOUP_SERVER_RAW_PATHS

#define SOUP_SERVER_RAW_PATHS     "raw-paths"

Alias for the "raw-paths" property. (If TRUE, percent-encoding in the Request-URI path will not be automatically decoded.)


SOUP_SERVER_SERVER_HEADER

#define SOUP_SERVER_SERVER_HEADER "server-header"

Alias for the "server-header" property, qv.

See Also

SoupAuthDomain