proxy.c File Reference

HTTP proxy functions. More...

#include "compile_time.h"
#include "src/webserver/proxy.h"
#include "src/lib/cache/cache_disk.h"
#include "src/lib/cache/cache_disk_images.h"
#include "src/lib/config_def.h"
#include "src/lib/log.h"
#include "src/lib/mem.h"
#include "src/lib/mg_str_utils.h"
#include "src/lib/mimetype.h"
#include "src/lib/sds_extras.h"
#include "src/webserver/placeholder.h"
#include "src/webserver/utility.h"

Include dependency graph for proxy.c:

Functions
bool	is_allowed_proxy_uri (const char *uri)
void	free_backend_nc_data (struct t_backend_nc_data *data)
void	handle_backend_close (struct mg_connection *nc)
void	send_backend_request (struct mg_connection *nc)
struct mg_connection *	create_backend_connection (struct mg_connection *nc, struct mg_connection *backend_nc, sds uri, mg_event_handler_t fn, bool stream)
void	forward_backend_to_frontend_stream (struct mg_connection *nc, int ev, void *ev_data)
void	forward_backend_to_frontend_covercache (struct mg_connection *nc, int ev, void *ev_data)

Variables
static const char *	allowed_proxy_hosts []

Detailed Description

HTTP proxy functions.

Function Documentation

create_backend_connection()

struct mg_connection * create_backend_connection	(	struct mg_connection *	nc,
		struct mg_connection *	backend_nc,
		sds	uri,
		mg_event_handler_t	fn,
		bool	stream
	)

Creates the backend connection

Parameters

nc	mongoose frontend connection
backend_nc	pointer to use for backend connection
uri	uri to connection
fn	event handler function
stream	is the backend connection a stream?

Returns

backend connection on success, else NULL

forward_backend_to_frontend_covercache()

void forward_backend_to_frontend_covercache	(	struct mg_connection *	nc,
		int	ev,
		void *	ev_data
	)

Gets images from the backend, caches and forwards the response

Parameters

nc	mongoose backend connection
ev	mongoose event
ev_data	mongoose ev_data (not used)

forward_backend_to_frontend_stream()

void forward_backend_to_frontend_stream	(	struct mg_connection *	nc,
		int	ev,
		void *	ev_data
	)

Send the request to the backend and forwards the raw data from backend response to frontend connection

Parameters

nc	mongoose backend connection
ev	mongoose event
ev_data	mongoose ev_data (not used)

free_backend_nc_data()

void free_backend_nc_data

(

struct t_backend_nc_data *

data

)

Frees the backend data struct

Parameters

data	backend data to free

handle_backend_close()

void handle_backend_close

(

struct mg_connection *

nc

)

Handles the connection close on backend side

Parameters

nc	mongoose connection

is_allowed_proxy_uri()

bool is_allowed_proxy_uri

(

const char *

uri

)

Public functions Checks if uri is in proxy whitelist

Parameters

uri	uri to check

Returns

true if allowed, else false

send_backend_request()

void send_backend_request

(

struct mg_connection *

nc

)

Sends the request to the backend connection

Parameters

nc	mongoose backend connection

Variable Documentation

allowed_proxy_hosts

const char* allowed_proxy_hosts[]

static

Initial value:

= {
    "jcorporation.github.io",
    "raw.githubusercontent.com",
    "musicbrainz.org",
    "listenbrainz.org",
    NULL
}

Private definitions