* for the specific language governing rights and limitations under the
* License.
*
- * The Original Code is FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
+ * The Original Code is FreeSWITCH mod_timezone.
*
* The Initial Developer of the Original Code is
- * Anthony Minessale II <anthmct@yahoo.com>
+ * Massimo Cetra <devel@navynet.it>
+ *
* Portions created by the Initial Developer are Copyright (C)
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Brian West <brian@freeswitch.org>
- * Antonio Gallo <agx@linux.it>
+ * Anthony Minessale II <anthmct@yahoo.com>
+ * Steve Underwood <steveu@coppice.org>
*
- * mod_fax.c -- Fax Module
+ * mod_fax.c -- Fax applications provided by SpanDSP
*
*/
#include <spandsp.h>
#include <spandsp/version.h>
-#define MAX_BLOCK_SIZE 240
+/*****************************************************************************
+ OUR DEFINES AND STRUCTS
+ *****************************************************************************/
-SWITCH_MODULE_LOAD_FUNCTION(mod_fax_load);
-SWITCH_MODULE_DEFINITION(mod_fax, mod_fax_load, NULL, NULL);
+typedef enum {
+ FUNCTION_TX,
+ FUNCTION_RX
+} application_mode_t;
-/*
- * output spandsp lowlevel messages
- */
+typedef enum {
+ T38_MODE,
+ AUDIO_MODE
+} transport_mode_t;
-static void span_message(int level, const char *msg)
-{
- int fs_log_level;
- /* TODO: maybe is better to use switch_assert here?
- if (msg==NULL) {
- return;
- }
- */
- switch_assert(msg);
+/* The global stuff */
+static struct {
+ switch_memory_pool_t *pool;
+ switch_mutex_t *mutex;
- switch (level) {
-/* TODO: i need to ask Coppice what SPAN_LOG_NONE and SPA_LOG_FLOW are exactly for
- case SPAN_LOG_NONE:
- return;
- case SPAN_LOG_FLOW:
- case SPAN_LOG_FLOW_2:
- case SPAN_LOG_FLOW_3:
- if (!debug)
- return;
- fs_log_level = SWITCH_LOG_DEBUG;
- break;
-*/
- case SPAN_LOG_ERROR:
- case SPAN_LOG_PROTOCOL_ERROR:
- fs_log_level = SWITCH_LOG_ERROR;
- break;
- case SPAN_LOG_WARNING:
- case SPAN_LOG_PROTOCOL_WARNING:
- fs_log_level = SWITCH_LOG_WARNING;
- break;
- default: /* SPAN_LOG_DEBUG, SPAN_LOG_DEBUG_2, SPAN_LOG_DEBUG_3 */
- fs_log_level = SWITCH_LOG_DEBUG;
- break;
- }
- switch_log_printf(SWITCH_CHANNEL_LOG, fs_log_level, "%s", msg );
-}
+ uint32_t total_sessions;
-/*
- * This function is called when the negotiation is completed
- */
+ short int use_ecm;
+ short int verbose;
+ short int disable_v17;
+ char ident[20];
+ char header[50];
+ char *prepend_string;
+ char *spool;
+} globals;
+
+struct pvt_s {
+ switch_core_session_t *session;
+
+ application_mode_t app_mode;
+
+ fax_state_t *fax_state;
+ t38_terminal_state_t *t38_state;
+
+ char *filename;
+ char *ident;
+ char *header;
+
+ int use_ecm;
+ int disable_v17;
+ int verbose;
+ int caller;
+
+ int tx_page_start;
+ int tx_page_end;
+
+ /* UNUSED AT THE MOMENT
+ int enable_t38_reinvite;
+ */
-static int phase_b_handler(t30_state_t *s, void *user_data, int result)
-{
- int session;
- const char *u = NULL;
- switch_assert(user_data != NULL);
- session = (intptr_t) user_data;
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "==============================================================================\n");
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Phase B: handler on session %d - (0x%X) %s\n", session, result, t30_frametype(result));
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "remote ident: %s\n", t30_get_rx_ident(s));
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "remote sub-address: %s\n", t30_get_rx_sub_address(s));
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "remote polled sub-address: %s\n", t30_get_rx_polled_sub_address(s));
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "remote sel. polling addr.: %s\n", t30_get_rx_selective_polling_address(s));
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "remote sender ident: %s\n", t30_get_rx_sender_ident(s));
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "remote password: %s\n", t30_get_rx_password(s));
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "==============================================================================\n");
- return T30_ERR_OK;
};
+typedef struct pvt_s pvt_t;
-/*
- * This function is called whenever a single new page has been received/transmitted
- */
+/*****************************************************************************
+ LOGGING AND HELPER FUNCTIONS
+ *****************************************************************************/
-static int phase_d_handler(t30_state_t *s, void *user_data, int result)
+static void counter_increment( void ) {
+ switch_mutex_lock(globals.mutex);
+ globals.total_sessions++;
+ switch_mutex_unlock(globals.mutex);
+}
+
+static void spanfax_log_message(int level, const char *msg)
{
- t30_stats_t t;
- int session = (intptr_t) user_data;
- switch_assert(user_data);
+ int fs_log_level;
- if (!result) return T30_ERR_OK;
+ switch (level)
+ {
+ case SPAN_LOG_NONE:
+ return;
+ case SPAN_LOG_ERROR:
+ case SPAN_LOG_PROTOCOL_ERROR:
+ fs_log_level = SWITCH_LOG_ERROR;
+ break;
+ case SPAN_LOG_WARNING:
+ case SPAN_LOG_PROTOCOL_WARNING:
+ fs_log_level = SWITCH_LOG_WARNING;
+ break;
+ case SPAN_LOG_FLOW:
+ case SPAN_LOG_FLOW_2:
+ case SPAN_LOG_FLOW_3:
+ default: /* SPAN_LOG_DEBUG, SPAN_LOG_DEBUG_2, SPAN_LOG_DEBUG_3 */
+ fs_log_level = SWITCH_LOG_DEBUG;
+ break;
+ }
- t30_get_transfer_statistics(s, &t);
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "==============================================================================\n");
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Phase D handler on channel %d - (0x%X) %s\n", session, session, result, t30_frametype(result));
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Pages transferred: %i\n", t.pages_transferred);
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Pages in the file: %i\n", t.pages_in_file);
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Image size: %i x %i\n", t.width, t.length);
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Image resolution %i x %i\n", t.x_resolution, t.y_resolution);
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Transfer Rate: %i\n", t.bit_rate);
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Bad rows %i\n", t.bad_rows);
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Longest bad row run %i\n", t.longest_bad_row_run);
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Compression type %i %s\n", t.encoding, t4_encoding_to_str(t.encoding));
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Image size (bytes) %i\n", t.image_size);
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "ECM %s\n", (t.error_correcting_mode) ? "on" : "off");
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "local ident: %s\n", t30_get_tx_ident(s));
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "remote ident: %s\n", t30_get_rx_ident(s));
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "bits per row - min %d, max %d\n", s->t4.min_row_bits, s->t4.max_row_bits);
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "==============================================================================\n");
+ if ( !switch_strlen_zero(msg) )
+ switch_log_printf(SWITCH_CHANNEL_LOG, fs_log_level, "%s", msg );
- return T30_ERR_OK;
}
-
/*
- * This function is called when the fax has finished his job
+ * Called at the end of the document
*/
-
static void phase_e_handler(t30_state_t *s, void *user_data, int result)
{
- t30_stats_t t;
- const char *far_ident = NULL;
- switch_channel_t *chan = (switch_channel_t *) user_data;
- char buf[128];
+ t30_stats_t t;
+ const char *local_ident;
+ const char *far_ident;
+ switch_core_session_t *session;
+ switch_channel_t *chan;
+ char *tmp;
+
+ session = ( switch_core_session_t* ) user_data;
+ switch_assert(session);
+ chan = switch_core_session_get_channel(session);
switch_assert(chan);
- if (result == T30_ERR_OK) {
- t30_get_transfer_statistics(s, &t);
-
- far_ident = switch_str_nil( t30_get_tx_ident(s) );
-
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "==============================================================================\n");
- //TODO: add received/transmitted ?
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Fax successfully processed.\n");
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Remote station id: %s\n", far_ident);
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Local station id: %s\n", switch_str_nil( t30_get_rx_ident(s)) );
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Pages transferred: %i\n", t.pages_transferred);
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Image resolution: %i x %i\n", t.x_resolution, t.y_resolution);
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Transfer Rate: %i\n", t.bit_rate);
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "local ident: %s\n", t30_get_tx_ident(s));
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "remote ident: %s\n", t30_get_rx_ident(s));
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "station country: %s\n", t30_get_rx_country(s));
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "station vendor: %s\n", t30_get_rx_vendor(s));
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "station model: %s\n", t30_get_rx_model(s));
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "==============================================================================\n");
-
- //TODO: is the buffer too little? anyway <MikeJ> is going to write a new set_variable function that will allow a printf like syntax very soon
- switch_snprintf(buf, sizeof(buf), "%d", t.pages_transferred);
- switch_channel_set_variable(chan, "FAX_PAGES", buf);
- switch_snprintf(buf, sizeof(buf), "%dx%d", t.x_resolution, t.y_resolution);
- switch_channel_set_variable(chan, "FAX_SIZE", buf);
- switch_snprintf(buf, sizeof(buf), "%d", t.bit_rate);
- switch_channel_set_variable(chan, "FAX_SPEED", buf);
-
- } else {
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "==============================================================================\n");
- //TODO: add received/transmitted ?
+ t30_get_transfer_statistics(s, &t);
+ local_ident = switch_str_nil( t30_get_tx_ident(s) );
+ far_ident = switch_str_nil( t30_get_rx_ident(s) );
+
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "==============================================================================\n");
+
+ if (result == T30_ERR_OK)
+ {
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Fax successfully sent.\n");
+ switch_channel_set_variable(chan, "fax_success", "1");
+ }
+ else
+ {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Fax processing not successful - result (%d) %s.\n", result, t30_completion_code_to_str(result));
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "==============================================================================\n");
+ switch_channel_set_variable(chan, "fax_success", "0");
}
- //TODO: remove the assert once this has been tested
- switch_channel_set_variable(chan, "FAX_REMOTESTATIONID", far_ident);
- switch_snprintf(buf, sizeof(buf), "%d", result);
- switch_channel_set_variable(chan, "FAX_RESULT", buf);
- switch_channel_set_variable(chan, "FAX_ERROR", t30_completion_code_to_str(result));
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Remote station id: %s\n", far_ident );
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Local station id: %s\n", local_ident );
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Pages transferred: %i\n", t.pages_transferred);
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Total fax pages: %i\n", t.pages_in_file);
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Image resolution: %ix%i\n", t.x_resolution, t.y_resolution);
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Transfer Rate: %i\n", t.bit_rate);
+
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "ECM status %s\n", (t.error_correcting_mode) ? "on" : "off");
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "remote country: %s\n", switch_str_nil( t30_get_rx_country(s)) );
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "remote vendor: %s\n", switch_str_nil( t30_get_rx_vendor(s)) );
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "remote model: %s\n", switch_str_nil( t30_get_rx_model(s)) );
+
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "==============================================================================\n");
/*
- * TODO
- * Fire here an EVENT about the result of the fax call
- */
-}
+ Set our channel variables
+ */
-/*
- * Document Handler - callback function for T.30 end of document handling.
- */
+ tmp = switch_mprintf("%i", result);
+ if ( tmp ) {
+ switch_channel_set_variable(chan, "fax_result_code", tmp );
+ switch_safe_free(tmp);
+ }
+
+ switch_channel_set_variable(chan, "fax_result_text", t30_completion_code_to_str(result) );
-static int document_handler(t30_state_t *s, void *user_data, int event)
+ switch_channel_set_variable(chan, "fax_ecm_used", (t.error_correcting_mode) ? "on" : "off" );
+ switch_channel_set_variable(chan, "fax_local_station_id", local_ident );
+ switch_channel_set_variable(chan, "fax_remote_station_id", far_ident );
+
+ tmp = switch_mprintf("%i", t.pages_transferred);
+ if ( tmp ) {
+ switch_channel_set_variable(chan, "fax_document_transferred_pages", tmp);
+ switch_safe_free(tmp);
+ }
+
+ tmp = switch_mprintf("%i", t.pages_in_file);
+ if ( tmp ) {
+ switch_channel_set_variable(chan, "fax_document_total_pages", tmp );
+ switch_safe_free(tmp);
+ }
+
+ tmp = switch_mprintf("%ix%i", t.x_resolution, t.y_resolution);
+ if ( tmp ) {
+ switch_channel_set_variable(chan, "fax_image_resolution", tmp );
+ switch_safe_free(tmp);
+ }
+
+ tmp = switch_mprintf("%d", t.image_size);
+ if ( tmp ) {
+ switch_channel_set_variable(chan, "fax_image_size", tmp );
+ switch_safe_free(tmp);
+ }
+
+ tmp = switch_mprintf("%d", t.bad_rows);
+ if ( tmp ) {
+ switch_channel_set_variable(chan, "fax_bad_rows", tmp );
+ switch_safe_free(tmp);
+ }
+
+ tmp = switch_mprintf("%i", t.bit_rate);
+ if ( tmp ) {
+ switch_channel_set_variable(chan, "fax_transfer_rate", tmp );
+ switch_safe_free(tmp);
+ }
+
+ /*
+ TODO Fire events
+ */
+
+}
+
+static switch_status_t spanfax_init( pvt_t *pvt, transport_mode_t trans_mode )
{
- int i = (intptr_t) user_data;
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "%d: Document handler on channel %d - event %d\n", i, i, event);
- return FALSE;
+
+ switch_core_session_t *session;
+ switch_channel_t *chan;
+ fax_state_t *fax;
+
+ session = ( switch_core_session_t* ) pvt->session;
+ switch_assert(session);
+
+ chan = switch_core_session_get_channel(session);
+ switch_assert(chan);
+
+
+ switch (trans_mode)
+ {
+ case AUDIO_MODE:
+ if ( pvt->fax_state == NULL )
+ {
+ pvt->fax_state = (fax_state_t *) switch_core_session_alloc( pvt->session, sizeof(fax_state_t) );
+ }
+ else
+ return SWITCH_STATUS_FALSE;
+
+ fax = pvt->fax_state;
+
+ memset(fax, 0, sizeof(fax_state_t));
+ if ( fax_init(fax, pvt->caller) == NULL )
+ {
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Cannot initialize my fax structs\n");
+ return SWITCH_STATUS_FALSE;
+ }
+
+ fax_set_transmit_on_idle(fax, TRUE);
+
+ span_log_set_message_handler(&fax->logging, spanfax_log_message);
+ span_log_set_message_handler(&fax->t30.logging, spanfax_log_message);
+
+ if( pvt->verbose )
+ {
+ span_log_set_level(&fax->logging, SPAN_LOG_SHOW_SEVERITY | SPAN_LOG_SHOW_PROTOCOL | SPAN_LOG_FLOW);
+ span_log_set_level(&fax->t30.logging, SPAN_LOG_SHOW_SEVERITY | SPAN_LOG_SHOW_PROTOCOL | SPAN_LOG_FLOW);
+ }
+
+ t30_set_tx_ident(&fax->t30, pvt->ident );
+ t30_set_tx_page_header_info(&fax->t30, pvt->header );
+
+ t30_set_phase_e_handler(&fax->t30, phase_e_handler, pvt->session);
+
+ t30_set_supported_image_sizes(&fax->t30,
+ T30_SUPPORT_US_LETTER_LENGTH | T30_SUPPORT_US_LEGAL_LENGTH | T30_SUPPORT_UNLIMITED_LENGTH
+ | T30_SUPPORT_215MM_WIDTH | T30_SUPPORT_255MM_WIDTH | T30_SUPPORT_303MM_WIDTH);
+ t30_set_supported_resolutions(&fax->t30,
+ T30_SUPPORT_STANDARD_RESOLUTION | T30_SUPPORT_FINE_RESOLUTION | T30_SUPPORT_SUPERFINE_RESOLUTION
+ | T30_SUPPORT_R8_RESOLUTION | T30_SUPPORT_R16_RESOLUTION);
+
+ //TODO Disable V17
+
+ if ( pvt->disable_v17 )
+ {
+ t30_set_supported_modems(&fax->t30, T30_SUPPORT_V29 | T30_SUPPORT_V27TER);
+ switch_channel_set_variable(chan, "fax_v17_disabled", "1");
+ } else {
+ t30_set_supported_modems(&fax->t30, T30_SUPPORT_V29 | T30_SUPPORT_V27TER | T30_SUPPORT_V17 );
+ switch_channel_set_variable(chan, "fax_v17_disabled", "0");
+ }
+
+ if ( pvt->use_ecm )
+ {
+ t30_set_supported_compressions(&fax->t30, T30_SUPPORT_T4_1D_COMPRESSION | T30_SUPPORT_T4_2D_COMPRESSION | T30_SUPPORT_T6_COMPRESSION);
+ t30_set_ecm_capability(&fax->t30, TRUE);
+ switch_channel_set_variable(chan, "fax_ecm_requested", "1");
+ }
+ else
+ {
+ t30_set_supported_compressions(&fax->t30, T30_SUPPORT_T4_1D_COMPRESSION | T30_SUPPORT_T4_2D_COMPRESSION );
+ switch_channel_set_variable(chan, "fax_ecm_requested", "0");
+ }
+
+ if ( pvt->app_mode == FUNCTION_TX )
+ {
+ t30_set_tx_file(&fax->t30, pvt->filename, pvt->tx_page_start, pvt->tx_page_end);
+ }
+ else
+ {
+ t30_set_rx_file(&fax->t30, pvt->filename, -1);
+ }
+ switch_channel_set_variable(chan, "fax_filename", pvt->filename);
+ break;
+ case T38_MODE:
+ /*
+ Here goes the T.38 SpanDSP initializing functions
+ T.38 will require a big effort as it needs a different approac
+ but the pieces are already in place
+ */
+ default:
+ assert(0); /* Whaaat ? */
+ break;
+ } /* Switch trans mode */
+
+ return SWITCH_STATUS_SUCCESS;
}
-/*
- * Main fax processing function:
- * - calling_party is boolean: TRUE = TxFax and FALSE = RxFax
- */
+static switch_status_t spanfax_destroy( pvt_t *pvt ) {
+ int terminate;
+
+ if ( pvt->fax_state )
+ {
+ if ( pvt->t38_state )
+ terminate = 0;
+ else
+ terminate = 1;
+
+ if ( terminate && &pvt->fax_state->t30 )
+ t30_terminate(&pvt->fax_state->t30);
+
+ fax_release(pvt->fax_state);
+ }
+
+ if ( pvt->t38_state )
+ {
+ if ( pvt->t38_state )
+ terminate = 1;
+ else
+ terminate = 0;
-void process_fax(switch_core_session_t *session, char *data, int calling_party)
+ if ( terminate && &pvt->t38_state->t30 )
+ t30_terminate(&pvt->t38_state->t30);
+
+ t38_terminal_release(pvt->t38_state);
+ }
+
+ return SWITCH_STATUS_SUCCESS;
+}
+
+/*****************************************************************************
+ MAIN FAX PROCESSING
+ *****************************************************************************/
+
+void process_fax(switch_core_session_t *session, const char *data, application_mode_t app_mode)
{
- switch_channel_t *channel;
- switch_codec_t *orig_read_codec = NULL;
- switch_codec_t read_codec = {0};
- switch_codec_t write_codec = {0};
- switch_frame_t *read_frame = {0};
- switch_frame_t write_frame = {0};
- switch_status_t status;
- fax_state_t fax;
-#define FAX_BUFFER_SIZE 4096
- int16_t buf[FAX_BUFFER_SIZE]; //TODO original value: 512
- int tx = 0;
- /*TODO: int calling_party = FALSE; DEPRECATED */
- /* Channels variable parsing */
- char *file_name = NULL;
- const char *fax_local_debug = NULL;
- int debug = FALSE;
- const char *fax_local_number = NULL;
- const char *fax_local_name = NULL;
- const char *fax_local_subname = NULL;
- const char *fax_local_ecm = NULL;
- const char *fax_local_v17 = NULL;
+ pvt_t *pvt;
+ const char *tmp;
+
+ switch_channel_t *channel;
+
+ switch_codec_t *orig_read_codec = NULL;
+ switch_codec_t read_codec = {0};
+ switch_codec_t write_codec = {0};
+ switch_frame_t *read_frame = {0};
+ switch_frame_t write_frame = {0};
+
+ int16_t *buf = NULL;
/* make sure we have a valid channel when starting the FAX application */
channel = switch_core_session_get_channel(session);
- switch_assert(channel != NULL);
+ switch_assert(channel != NULL);
- /* set output varialbles to a reasonable result */
- switch_channel_set_variable(channel, "FAX_REMOTESTATIONID", "unknown");
- switch_channel_set_variable(channel, "FAX_PAGES", "0");
- switch_channel_set_variable(channel, "FAX_SIZE", "0");
- switch_channel_set_variable(channel, "FAX_SPEED", "0");
- switch_channel_set_variable(channel, "FAX_RESULT", "1");
- //TODO: add received/transmitted ?
- switch_channel_set_variable(channel, "FAX_ERROR", "fax not processed yet");
+ /* Allocate our structs */
+ pvt = switch_core_session_alloc(session, sizeof(pvt_t));
- /*
- * SpanDSP initialization
- * if fax_init by any chance fails to start we return quickly without touching anything else
- */
- //TODO: ask Coppice to see if we need to clear the fax structure before fax_init is invoked
- memset(&fax, 0, sizeof(fax));
- if (NULL == fax_init(&fax, calling_party)) {
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "fax_init failed\n");
+ counter_increment();
+
+ if ( !pvt )
+ {
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Cannot allocate application private data\n");
return;
}
+ else
+ {
+ memset( pvt, 0, sizeof(pvt_t) );
- /*
- * Enable options based on channel variables and input parameters
- */
+ pvt->session = session;
+ pvt->app_mode = app_mode;
- /* file_name - Sets the TIFF filename where do you want to save the fax */
- file_name = switch_core_session_strdup(session, data);
- /* it is important that file_name is not NULL or an empty string */
- if (switch_strlen_zero(file_name)) {
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "fax filename is NULL or empty string\n");
+ pvt->tx_page_start = -1;
+ pvt->tx_page_end = -1;
+
+ if ( pvt->app_mode == FUNCTION_TX )
+ pvt->caller = 1;
+ else if ( pvt->app_mode == FUNCTION_RX )
+ pvt->caller = 0;
+ else
+ assert(0); /* UH ? */
+ }
+
+
+ buf = switch_core_session_alloc(session, SWITCH_RECOMMENDED_BUFFER_SIZE);
+ if ( !buf ) {
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Cannot allocate application buffer data\n");
return;
}
- if (calling_party)
- t30_set_tx_file(&fax.t30, file_name, -1, -1);
- else
- t30_set_rx_file(&fax.t30, file_name, -1);
- /* FAX_DEBUG - enable extra debugging if defined */
- debug = ( NULL != switch_channel_get_variable(channel, "FAX_DEBUG") );
+ /* Retrieving our settings from the channel variables */
+ if ( (tmp=switch_channel_get_variable(channel, "fax_use_ecm")) ) {
+ if ( switch_true(tmp) )
+ pvt->use_ecm = 1;
+ else
+ pvt->use_ecm = 0;
+ }
+ else
+ pvt->use_ecm = globals.use_ecm;
- /* FAX_LOCAL_NUMBER - Set your station phone number */
- t30_set_tx_ident(&fax.t30, switch_str_nil(switch_channel_get_variable(channel, "FAX_LOCAL_NUMBER")));
+ if ( (tmp=switch_channel_get_variable(channel, "fax_disable_v17")) ) {
+ if ( switch_true(tmp) )
+ pvt->disable_v17 = 1;
+ else
+ pvt->disable_v17 = 0;
+ }
+ else
+ pvt->disable_v17 = globals.disable_v17;
- /* FAX_LOCAL_NAME - Set your station ID name (string) */
- t30_set_tx_page_header_info(&fax.t30, switch_str_nil(switch_channel_get_variable(channel, "FAX_LOCAL_NAME")));
+ if ( (tmp=switch_channel_get_variable(channel, "fax_verbose")) ) {
+ if ( switch_true(tmp) )
+ pvt->verbose = 1;
+ else
+ pvt->verbose = 0;
+ }
+ else
+ pvt->verbose = globals.verbose;
- /* FAX_LOCAL_SUBNAME - Set your station ID sub name */
- t30_set_tx_sub_address(&fax.t30, switch_str_nil(switch_channel_get_variable(channel, "FAX_LOCAL_SUBNAME")));
+ if ( (tmp=switch_channel_get_variable(channel, "fax_force_caller")) ) {
+ if ( switch_true(tmp) )
+ pvt->caller = 1;
+ else
+ pvt->caller = 0;
+ }
- /* FAX_DISABLE_ECM - Set if you want ECM on or OFF */
- if (NULL != switch_channel_get_variable(channel, "FAX_DISABLE_ECM")) {
- t30_set_ecm_capability(&fax.t30, TRUE);
- t30_set_supported_compressions(&fax.t30, T30_SUPPORT_T4_1D_COMPRESSION | T30_SUPPORT_T4_2D_COMPRESSION | T30_SUPPORT_T6_COMPRESSION);
- } else {
- t30_set_ecm_capability(&fax.t30, FALSE);
+ if ( (tmp=switch_channel_get_variable(channel, "fax_ident")) ) {
+ pvt->ident = switch_core_session_strdup(session, tmp);
}
+ else
+ pvt->ident = switch_core_session_strdup(session, globals.ident);
- /* FAX_DISABLE_V17 - set if you want 9600 or V17 (14.400) */
- if (NULL != switch_channel_get_variable(channel, "FAX_DISABLE_V17")) {
- t30_set_supported_modems(&fax.t30, T30_SUPPORT_V29 | T30_SUPPORT_V27TER | T30_SUPPORT_V17 );
- } else {
- t30_set_supported_modems(&fax.t30, T30_SUPPORT_V29 | T30_SUPPORT_V27TER);
+ if ( (tmp=switch_channel_get_variable(channel, "fax_header")) ) {
+ pvt->header = switch_core_session_strdup(session, tmp);
}
+ else
+ pvt->header = switch_core_session_strdup(session, globals.header);
- /* TODO, ask Coppice if this is really working or not and then add FAX_PASSWORD channel variable (don't forget the wiki part too)
- * t30_set_tx_password(&mc->fax.t30_state, "Password");
- */
- /* Configure more spanDSP internal options */
+ if ( pvt->app_mode == FUNCTION_TX )
+ {
- /* Select whether silent audio will be sent when FAX transmit is idle. */
- fax_set_transmit_on_idle(&fax, TRUE);
+ if ( (tmp=switch_channel_get_variable(channel, "fax_start_page")) ) {
+ pvt->tx_page_start = atoi(tmp);
+ }
- /* Support for different image sizes && resolutions */
- t30_set_supported_image_sizes(&fax.t30, T30_SUPPORT_US_LETTER_LENGTH | T30_SUPPORT_US_LEGAL_LENGTH | T30_SUPPORT_UNLIMITED_LENGTH
- | T30_SUPPORT_215MM_WIDTH | T30_SUPPORT_255MM_WIDTH | T30_SUPPORT_303MM_WIDTH);
- t30_set_supported_resolutions(&fax.t30, T30_SUPPORT_STANDARD_RESOLUTION | T30_SUPPORT_FINE_RESOLUTION | T30_SUPPORT_SUPERFINE_RESOLUTION
- | T30_SUPPORT_R8_RESOLUTION | T30_SUPPORT_R16_RESOLUTION);
+ if ( (tmp=switch_channel_get_variable(channel, "fax_end_page")) ) {
+ pvt->tx_page_end = atoi(tmp);
+ }
- /* set phase handlers callbaks */
- t30_set_phase_d_handler(&fax.t30, phase_d_handler, session);
- t30_set_phase_e_handler(&fax.t30, phase_e_handler, channel);
- if (debug) {
- t30_set_phase_b_handler(&fax.t30, phase_b_handler, session);
- t30_set_document_handler(&fax.t30, document_handler, session);
+ if ( pvt->tx_page_end < -1 )
+ pvt->tx_page_end = -1;
+ if ( pvt->tx_page_start < -1 )
+ pvt->tx_page_start = -1;
+ if ( (pvt->tx_page_end < pvt->tx_page_start) && ( pvt->tx_page_end != -1 ) )
+ pvt->tx_page_end = pvt->tx_page_start;
}
- /* set spanDSP logging functions - set spanlog debug messages to be outputted somewhere */
- span_log_set_message_handler(&fax.logging, span_message);
- span_log_set_message_handler(&fax.t30.logging, span_message);
- if (debug) {
- /* TODO: original
- span_log_set_level(&fax.logging, SPAN_LOG_SHOW_SEVERITY | SPAN_LOG_SHOW_PROTOCOL | SPAN_LOG_FLOW);
- span_log_set_level(&fax.t30.logging, SPAN_LOG_SHOW_SEVERITY | SPAN_LOG_SHOW_PROTOCOL | SPAN_LOG_FLOW);
- */
- span_log_set_level(&fax.logging, SPAN_LOG_NONE|SPAN_LOG_FLOW|SPAN_LOG_FLOW_2|SPAN_LOG_FLOW_3|SPAN_LOG_ERROR|SPAN_LOG_PROTOCOL_ERROR|SPAN_LOG_WARNING|SPAN_LOG_PROTOCOL_WARNING|SPAN_LOG_DEBUG|SPAN_LOG_DEBUG_2|SPAN_LOG_DEBUG_3 );
- span_log_set_level(&fax.t30.logging, SPAN_LOG_NONE|SPAN_LOG_FLOW|SPAN_LOG_FLOW_2|SPAN_LOG_FLOW_3|SPAN_LOG_ERROR|SPAN_LOG_PROTOCOL_ERROR|SPAN_LOG_WARNING|SPAN_LOG_PROTOCOL_WARNING|SPAN_LOG_DEBUG|SPAN_LOG_DEBUG_2|SPAN_LOG_DEBUG_3 );
- } else {
- span_log_set_level(&fax.logging, SPAN_LOG_SHOW_SEVERITY | SPAN_LOG_SHOW_PROTOCOL );
- span_log_set_level(&fax.t30.logging, SPAN_LOG_SHOW_SEVERITY | SPAN_LOG_SHOW_PROTOCOL );
+ if ( !switch_strlen_zero(data) ) {
+ pvt->filename = switch_core_session_strdup(session, data);
+ if ( pvt->app_mode == FUNCTION_TX ) {
+ if ( (switch_file_exists( pvt->filename, switch_core_session_get_pool(session) )!=SWITCH_STATUS_SUCCESS) ) {
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Cannot send inexistant fax file [%s]\n", switch_str_nil(pvt->filename) );
+ goto done;
+ }
+ }
}
+ else {
+ if ( pvt->app_mode == FUNCTION_TX ) {
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Fax TX filename not set.\n");
+ goto done;
+ }
+ else if ( pvt->app_mode == FUNCTION_RX )
+ {
+ char *fname;
+ char *prefix;
+ switch_time_t time;
- /* We're now ready to answer the channel and process the audio of the call */
+ time = switch_time_now();
- /* Answer the call, otherwise we're not getting incoming audio */
- switch_channel_answer(channel);
+ if ( !(prefix=switch_channel_get_variable(channel, "fax_prefix")) ) {
+ prefix = globals.prepend_string;
+ }
- /* TODO:
- * it could be a good idea to disable ECHOCAN on ZAP channels and to reset volumes too
- * anyone know how to do this if one of the channell is OpenZap isntead of Sofia?
- * TIPS: perhaps "disable_ec" apps ?
+ fname = switch_mprintf("%s/%s-%ld-%ld.tif", globals.spool, prefix, globals.total_sessions, time);
+ if ( fname )
+ {
+ pvt->filename = switch_core_session_strdup(session, fname);
+ switch_safe_free(fname);
+ }
+ else
+ {
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Cannot automagically set fax RX destination file\n");
+ goto done;
+ }
+ }
+ else {
+ assert(0); /* UH ?? */
+ }
+ }
+
+ /*
+ Initialize the SpanDSP elements
+
+ NOTE, we could analyze if a fax was already detected in previous stages
+ and if so, when T.38 will be supported, send a reinvite in T38_MODE,
+ bypassing AUDIO_MODE.
*/
+ if ( (spanfax_init(pvt, AUDIO_MODE)!=SWITCH_STATUS_SUCCESS) )
+ {
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Cannot initialize Fax engine\n");
+ return;
+ }
+
+ /* Answer the call */
+ switch_channel_answer(channel);
+
+ /* Note: Disable echocan on the channel, it there is an API call to do that */
+
+
/* We store the original channel codec before switching both
* legs of the calls to a linear 16 bit codec that is the one
* used internally by spandsp and FS will do the transcoding
*/
orig_read_codec = switch_core_session_get_read_codec(session);
- if (switch_core_codec_init(&read_codec,
- "L16",
- NULL,
- orig_read_codec->implementation->samples_per_second,
- orig_read_codec->implementation->microseconds_per_frame / 1000,
- 1,
- SWITCH_CODEC_FLAG_ENCODE | SWITCH_CODEC_FLAG_DECODE,
- NULL,
- switch_core_session_get_pool(session)) == SWITCH_STATUS_SUCCESS) {
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Raw Codec Activation Success L16 on Leg-A\n");
- } else {
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Raw Codec Activation Failed L16 on Leg-A");
- goto done;
- }
-
- if (switch_core_codec_init(&write_codec,
- "L16",
- NULL,
- orig_read_codec->implementation->samples_per_second,
- orig_read_codec->implementation->microseconds_per_frame / 1000,
- 1,
- SWITCH_CODEC_FLAG_ENCODE | SWITCH_CODEC_FLAG_DECODE,
- NULL,
- switch_core_session_get_pool(session)) == SWITCH_STATUS_SUCCESS) {
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Raw Codec Activation Success L16 on Leg-B\n");
- } else {
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Raw Codec Activation Failed L16 on Leg-B");
- goto done;
- }
-
- write_frame.codec = &write_codec;
- write_frame.data = buf;
+ if (switch_core_codec_init(
+ &read_codec,
+ "L16",
+ NULL,
+ orig_read_codec->implementation->samples_per_second,
+ orig_read_codec->implementation->microseconds_per_frame / 1000,
+ 1,
+ SWITCH_CODEC_FLAG_ENCODE | SWITCH_CODEC_FLAG_DECODE,
+ NULL,
+ switch_core_session_get_pool(session)) == SWITCH_STATUS_SUCCESS
+ )
+ {
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Raw read codec activation Success L16\n");
+ switch_core_session_set_read_codec(session, &read_codec);
+ }
+ else
+ {
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Raw read codec activation Failed L16\n");
+ goto done;
+ }
+
+ if (switch_core_codec_init(
+ &write_codec,
+ "L16",
+ NULL,
+ orig_read_codec->implementation->samples_per_second,
+ orig_read_codec->implementation->microseconds_per_frame / 1000,
+ 1,
+ SWITCH_CODEC_FLAG_ENCODE | SWITCH_CODEC_FLAG_DECODE,
+ NULL,
+ switch_core_session_get_pool(session)) == SWITCH_STATUS_SUCCESS
+ )
+ {
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Raw write codec activation Success L16\n");
+ write_frame.codec = &write_codec;
+ write_frame.data = buf;
+ write_frame.buflen = SWITCH_RECOMMENDED_BUFFER_SIZE;
+ }
+ else
+ {
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Raw write codec activation Failed L16\n");
+ goto done;
+ }
+
/*
* now we enter a loop where we read audio frames to the channels and will pass it to spandsp
- * and if there is some outgoing frame we'll send it back to the calling fax machine
*/
-
- while(switch_channel_ready(channel)) {
+ while( switch_channel_ready(channel) )
+ {
+ int tx = 0;
+ switch_status_t status;
+
+ /*
+ if we are in T.38 mode, we should: 1- initialize the ptv->t38_state stuff, if not done
+ and then set some callbacks when reading frames.
+ The only thing we need, then, in this loop, is:
+ - read a frame without blocking
+ - eventually feed that frame in spandsp,
+ - call t38_terminal_send_timeout(), sleep for a while
+
+ The T.38 stuff can be placed here (and the audio stuff can be skipped)
+ */
/* read new audio frame from the channel */
- status = switch_core_session_read_frame(session, &read_frame, -1, 0);
- if (!SWITCH_READ_ACCEPTABLE(status)) {
+ status = switch_core_session_read_frame(session, &read_frame, SWITCH_IO_FLAG_NONE, 0);
+
+ if ( !SWITCH_READ_ACCEPTABLE(status) )
+ {
+ /* Our duty is over */
goto done;
}
- //DEBUG switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Frame Read: %d\n" , read_frame->samples);
+ /* Skip CNG frames (autogenerated by FreeSWITCH, usually) */
+ if (switch_test_flag(read_frame, SFF_CNG)) {
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Skipping CNG frame\n" );
+ continue;
+ }
- /* pass the new incoming audio frame to the fax_rx application */
- if( fax_rx(&fax, (int16_t *)read_frame->data, read_frame->samples) ) {
- //TODO
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "FAX_RX error\n" );
+ /* pass the new incoming audio frame to the fax_rx function */
+ if( fax_rx(pvt->fax_state, (int16_t *)read_frame->data, read_frame->samples) )
+ {
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "fax_rx reported an error\n" );
+ goto done;
}
- //TODO
- if (read_frame->samples > 256 )
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "SAMPLES TOO BIG\n" );
- if ((tx = fax_tx(&fax, (int16_t *) &buf, write_codec.implementation->samples_per_frame)) < 0) {
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Fax_Tx Error\n");
+ if ( (tx = fax_tx(pvt->fax_state, buf, write_codec.implementation->samples_per_frame)) < 0)
+ {
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "fax_tx reported an error\n");
goto done;
}
- //DEBUG switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Fax Tx : %d %d\n" , tx, write_codec.implementation->samples_per_frame);
- if (tx!=0) {
+ if ( !tx )
+ {
+ /* switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "No audio samples to send\n"); */
+ continue;
+ }
+ else
+ {
+ /* Set our write_frame data */
write_frame.datalen = tx * sizeof(int16_t);
write_frame.samples = tx;
+ }
- if (switch_core_session_write_frame(session, &write_frame, -1, 0) != SWITCH_STATUS_SUCCESS) {
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Bad Write, datalen: %d, samples: %d\n",
- write_frame.datalen,
- write_frame.samples
- );
- goto done;
- }
- //DEBUG switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Frame TX : %d %d\n" , write_frame.datalen, write_frame.samples);
- } else {
- // TODO
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "non trasmitting\n" );
+ if ( switch_core_session_write_frame(session, &write_frame, SWITCH_IO_FLAG_NONE, 0) != SWITCH_STATUS_SUCCESS )
+ {
+ /* something weird has happened */
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR,
+ "Cannot write frame [datalen: %d, samples: %d]\n",
+ write_frame.datalen, write_frame.samples );
+ goto done;
}
+
}
- done:
+done:
+ /* Destroy the SpanDSP structures */
+ spanfax_destroy( pvt );
- // TODO: this is here to see if it gets called "pre" or "post" the document handler
- if (debug)
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "FAX transmission has terminated.\n");
+ /* restore the original codecs over the channel */
- /* shutdown spandsp so it can create our tiff */
- t30_terminate(&fax.t30);
- fax_release(&fax);
-
- /* restore the original codecs over the channels */
- if (read_codec.implementation) {
- switch_core_codec_destroy(&read_codec);
+ if ( read_codec.implementation )
+ {
+ switch_core_codec_destroy(&read_codec);
}
- if (write_codec.implementation) {
- switch_core_codec_destroy(&write_codec);
+ if ( write_codec.implementation )
+ {
+ switch_core_codec_destroy(&write_codec);
}
- if (orig_read_codec) {
- switch_core_session_set_read_codec(session, orig_read_codec);
+ if ( orig_read_codec )
+ {
+ switch_core_session_set_read_codec(session, orig_read_codec);
+ }
+
+}
+
+/* **************************************************************************
+ CONFIGURATION
+ ************************************************************************* */
+
+void load_configuration(switch_bool_t reload)
+{
+ switch_xml_t xml = NULL, x_lists = NULL, x_list = NULL, cfg = NULL;
+
+ if ((xml = switch_xml_open_cfg("fax.conf", &cfg, NULL)))
+ {
+ if ((x_lists = switch_xml_child(cfg, "settings")))
+ {
+ for (x_list = switch_xml_child(x_lists, "param"); x_list; x_list = x_list->next)
+ {
+ const char *name = switch_xml_attr(x_list, "name");
+ const char *value= switch_xml_attr(x_list, "value");
+
+ if (switch_strlen_zero(name)) {
+ continue;
+ }
+
+ if (switch_strlen_zero(value)) {
+ continue;
+ }
+
+ if ( !strcmp(name, "use-ecm" ) ) {
+ if ( switch_true(value) )
+ globals.use_ecm = 1;
+ else
+ globals.use_ecm = 0;
+ }
+ else if ( !strcmp(name, "verbose" ) ) {
+ if ( switch_true(value) )
+ globals.verbose = 1;
+ else
+ globals.verbose = 0;
+ }
+ else if ( !strcmp(name, "disable-v17" ) ) {
+ if ( switch_true(value) )
+ globals.disable_v17 = 1;
+ else
+ globals.disable_v17 = 0;
+ }
+ else if ( !strcmp(name, "ident" ) ) {
+ strncpy(globals.ident, value, sizeof(globals.ident)-1 );
+ }
+ else if ( !strcmp(name, "header" ) ) {
+ strncpy(globals.header, value, sizeof(globals.header)-1 );
+ }
+ else if ( !strcmp(name, "spool-dir" ) ) {
+ globals.spool = switch_core_strdup(globals.pool, value);
+ }
+ else if ( !strcmp(name, "file-prefix" ) ) {
+ globals.prepend_string = switch_core_strdup(globals.pool, value);
+ }
+ else {
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "Unknown parameter %s\n", name );
+ }
+
+ }
+ }
+
+ switch_xml_free(xml);
}
+}
+static void event_handler(switch_event_t *event)
+{
+ load_configuration(1);
}
-SWITCH_STANDARD_APP(txfax_function)
+/* **************************************************************************
+ FREESWITCH MODULE DEFINITIONS
+ ************************************************************************* */
+
+#define SPANFAX_RX_USAGE "<filename>"
+#define SPANFAX_TX_USAGE "<filename>"
+
+SWITCH_MODULE_LOAD_FUNCTION(mod_fax_init);
+SWITCH_MODULE_SHUTDOWN_FUNCTION(mod_fax_shutdown);
+SWITCH_MODULE_DEFINITION(mod_fax, mod_fax_init, mod_fax_shutdown, NULL);
+
+static switch_event_node_t *NODE = NULL;
+
+SWITCH_STANDARD_APP(spanfax_tx_function)
{
- process_fax(session, data, TRUE);
+ process_fax(session, data, FUNCTION_TX);
}
-SWITCH_STANDARD_APP(rxfax_function)
+SWITCH_STANDARD_APP(spanfax_rx_function)
{
- process_fax(session, data, FALSE);
+ process_fax(session, data, FUNCTION_RX);
}
-SWITCH_MODULE_LOAD_FUNCTION(mod_fax_load)
+SWITCH_MODULE_LOAD_FUNCTION(mod_fax_init)
{
switch_application_interface_t *app_interface;
-
- /* connect my internal structure to the blank pointer passed to me */
+
*module_interface = switch_loadable_module_create_module_interface(pool, modname);
-
- SWITCH_ADD_APP(app_interface, "rxfax", "FAX Receive Application", "FAX Receive Application", rxfax_function, "", SAF_NONE);
- SWITCH_ADD_APP(app_interface, "txfax", "FAX Transmit Application", "FAX Transmit Application", txfax_function, "", SAF_NONE);
-
- // TODO: ask if i can use LOG functions inside this macro
- /* its important to debug the exact spandsp used */
- switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "using spandsp %i %i\n", SPANDSP_RELEASE_DATE, SPANDSP_RELEASE_TIME );
-
- /* indicate that the module should continue to be loaded */
+
+ SWITCH_ADD_APP(app_interface, "rxfax", "FAX Receive Application", "FAX Receive Application", spanfax_rx_function, SPANFAX_RX_USAGE, SAF_NONE);
+ SWITCH_ADD_APP(app_interface, "txfax", "FAX Transmit Application", "FAX Transmit Application", spanfax_tx_function, SPANFAX_TX_USAGE, SAF_NONE);
+
+ memset(&globals, 0, sizeof(globals) );
+ switch_core_new_memory_pool(&globals.pool);
+ switch_mutex_init(&globals.mutex, SWITCH_MUTEX_NESTED, globals.pool);
+
+ globals.total_sessions = 0;
+ globals.verbose = 1;
+ globals.use_ecm = 1;
+ globals.disable_v17 = 0;
+ globals.prepend_string = switch_core_strdup(globals.pool, "fax");
+ globals.spool = switch_core_strdup(globals.pool, "/tmp");
+ strncpy(globals.ident, "SpanDSP Fax Ident", sizeof(globals.ident)-1 );
+ strncpy(globals.header, "SpanDSP Fax Header", sizeof(globals.header)-1 );
+
+ load_configuration(0);
+
+ if ( (switch_event_bind_removable(modname, SWITCH_EVENT_RELOADXML, NULL, event_handler, NULL, &NODE) != SWITCH_STATUS_SUCCESS) )
+ {
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Couldn't bind our reloadxml handler!\n");
+ /* Not such severe to prevent loading */
+ }
+
+ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "mod_fax loaded, using spandsp library version %d [%d]\n", SPANDSP_RELEASE_DATE, SPANDSP_RELEASE_TIME );
+
return SWITCH_STATUS_SUCCESS;
}
+SWITCH_MODULE_SHUTDOWN_FUNCTION(mod_fax_shutdown)
+{
+ switch_memory_pool_t *pool = globals.pool;
+
+ switch_core_destroy_memory_pool(&pool);
+ memset(&globals, 0, sizeof(globals));
+
+ return SWITCH_STATUS_UNLOAD;
+}
+
/* For Emacs:
* Local Variables:
* mode:c
projects / thirdparty / freeswitch.git / commitdiff
