Hu Chunming / sip_server

/*
  The oSIP library implements the Session Initiation Protocol (SIP -rfc3261-)
  Copyright (C) 2001-2020 Aymeric MOIZARD amoizard@antisip.com

  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation; either
  version 2.1 of the License, or (at your option) any later version.

  This library is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public
  License along with this library; if not, write to the Free Software
  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

#include <osipparser2/internal.h>

#include <osipparser2/osip_port.h>
#include <osipparser2/osip_message.h>

/* enable logging of memory accesses */

const char *osip_protocol_version = "SIP/2.0";

int osip_message_init(osip_message_t **sip) {
  *sip = (osip_message_t *) osip_malloc(sizeof(osip_message_t));

  if (*sip == NULL)
    return OSIP_NOMEM;

  memset(*sip, 0, sizeof(osip_message_t));

#ifndef MINISIZE
  osip_list_init(&(*sip)->accepts);
  osip_list_init(&(*sip)->accept_encodings);

  osip_list_init(&(*sip)->accept_languages);
  osip_list_init(&(*sip)->alert_infos);
  osip_list_init(&(*sip)->allows);
  osip_list_init(&(*sip)->authentication_infos);
#endif
  osip_list_init(&(*sip)->authorizations);
  (*sip)->call_id = NULL;
  osip_list_init(&(*sip)->call_infos);
  osip_list_init(&(*sip)->contacts);

#ifndef MINISIZE
  osip_list_init(&(*sip)->content_encodings);
#endif
  (*sip)->content_length = NULL;
  (*sip)->content_type = NULL;
  (*sip)->cseq = NULL;
#ifndef MINISIZE
  osip_list_init(&(*sip)->error_infos);
#endif
  (*sip)->from = NULL;
  (*sip)->mime_version = NULL;
  osip_list_init(&(*sip)->proxy_authenticates);
#ifndef MINISIZE
  osip_list_init(&(*sip)->proxy_authentication_infos);
#endif
  osip_list_init(&(*sip)->proxy_authorizations);
  osip_list_init(&(*sip)->record_routes);
  osip_list_init(&(*sip)->routes);
  (*sip)->to = NULL;
  osip_list_init(&(*sip)->vias);
  osip_list_init(&(*sip)->www_authenticates);

  osip_list_init(&(*sip)->bodies);

  osip_list_init(&(*sip)->headers);

  (*sip)->message_property = 3;
  (*sip)->message = NULL; /* buffer to avoid calling osip_message_to_str many times (for retransmission) */
  (*sip)->message_length = 0;

  (*sip)->application_data = NULL;
  return OSIP_SUCCESS; /* ok */
}

void osip_message_set_reason_phrase(osip_message_t *sip, char *reason) {
  sip->reason_phrase = reason;
}

void osip_message_set_status_code(osip_message_t *sip, int status_code) {
  sip->status_code = status_code;
}

void osip_message_set_method(osip_message_t *sip, char *sip_method) {
  sip->sip_method = sip_method;
}

void osip_message_set_version(osip_message_t *sip, char *sip_version) {
  sip->sip_version = sip_version;
}

void osip_message_set_uri(osip_message_t *sip, osip_uri_t *url) {
  sip->req_uri = url;
}

void osip_message_free(osip_message_t *sip) {
  if (sip == NULL)
    return;

  osip_free(sip->sip_method);
  osip_free(sip->sip_version);

  if (sip->req_uri != NULL)
    osip_uri_free(sip->req_uri);

  osip_free(sip->reason_phrase);

#ifndef MINISIZE
  osip_list_special_free(&sip->accepts, (void (*)(void *)) & osip_accept_free);
#endif
  osip_list_special_free(&sip->authorizations, (void (*)(void *)) & osip_authorization_free);

  if (sip->call_id != NULL)
    osip_call_id_free(sip->call_id);

#ifndef MINISIZE
  osip_list_special_free(&sip->accept_encodings, (void (*)(void *)) & osip_accept_encoding_free);
  osip_list_special_free(&sip->accept_languages, (void (*)(void *)) & osip_accept_language_free);
  osip_list_special_free(&sip->alert_infos, (void (*)(void *)) & osip_alert_info_free);
  osip_list_special_free(&sip->allows, (void (*)(void *)) & osip_allow_free);
  osip_list_special_free(&sip->authentication_infos, (void (*)(void *)) & osip_authentication_info_free);
  osip_list_special_free(&sip->content_encodings, (void (*)(void *)) & osip_content_encoding_free);
  osip_list_special_free(&sip->error_infos, (void (*)(void *)) & osip_error_info_free);
  osip_list_special_free(&sip->proxy_authentication_infos, (void (*)(void *)) & osip_proxy_authentication_info_free);
#endif
  osip_list_special_free(&sip->call_infos, (void (*)(void *)) & osip_call_info_free);
  osip_list_special_free(&sip->contacts, (void (*)(void *)) & osip_contact_free);

  if (sip->content_length != NULL)
    osip_content_length_free(sip->content_length);

  if (sip->content_type != NULL)
    osip_content_type_free(sip->content_type);

  if (sip->cseq != NULL)
    osip_cseq_free(sip->cseq);

  if (sip->from != NULL)
    osip_from_free(sip->from);

  if (sip->mime_version != NULL)
    osip_mime_version_free(sip->mime_version);

  osip_list_special_free(&sip->proxy_authenticates, (void (*)(void *)) & osip_proxy_authenticate_free);
  osip_list_special_free(&sip->proxy_authorizations, (void (*)(void *)) & osip_proxy_authorization_free);
  osip_list_special_free(&sip->record_routes, (void (*)(void *)) & osip_record_route_free);
  osip_list_special_free(&sip->routes, (void (*)(void *)) & osip_route_free);

  if (sip->to != NULL)
    osip_to_free(sip->to);

  osip_list_special_free(&sip->vias, (void (*)(void *)) & osip_via_free);
  osip_list_special_free(&sip->www_authenticates, (void (*)(void *)) & osip_www_authenticate_free);
  osip_list_special_free(&sip->headers, (void (*)(void *)) & osip_header_free);
  osip_list_special_free(&sip->bodies, (void (*)(void *)) & osip_body_free);
  osip_free(sip->message);
  osip_free(sip);
}

int osip_message_clone(const osip_message_t *sip, osip_message_t **dest) {
  osip_message_t *copy;
  int i;

  *dest = NULL;

  if (sip == NULL)
    return OSIP_BADPARAMETER;

  i = osip_message_init(&copy);

  if (i != 0)
    return i;

  copy->sip_method = osip_strdup(sip->sip_method);

  if (sip->sip_method != NULL && copy->sip_method == NULL) {
    osip_message_free(copy);
    return OSIP_NOMEM;
  }

  copy->sip_version = osip_strdup(sip->sip_version);

  if (sip->sip_version != NULL && copy->sip_version == NULL) {
    osip_message_free(copy);
    return OSIP_NOMEM;
  }

  copy->status_code = sip->status_code;
  copy->reason_phrase = osip_strdup(sip->reason_phrase);

  if (sip->reason_phrase != NULL && copy->reason_phrase == NULL) {
    osip_message_free(copy);
    return OSIP_NOMEM;
  }

  if (sip->req_uri != NULL) {
    i = osip_uri_clone(sip->req_uri, &(copy->req_uri));

    if (i != 0) {
      osip_message_free(copy);
      return i;
    }
  }

#ifndef MINISIZE
  i = osip_list_clone(&sip->accepts, &copy->accepts, (int (*)(void *, void **)) & osip_accept_clone);

  if (i != 0) {
    osip_message_free(copy);
    return i;
  }

  i = osip_list_clone(&sip->accept_encodings, &copy->accept_encodings, (int (*)(void *, void **)) & osip_accept_encoding_clone);

  if (i != 0) {
    osip_message_free(copy);
    return i;
  }

  i = osip_list_clone(&sip->accept_languages, &copy->accept_languages, (int (*)(void *, void **)) & osip_accept_language_clone);

  if (i != 0) {
    osip_message_free(copy);
    return i;
  }

  i = osip_list_clone(&sip->alert_infos, &copy->alert_infos, (int (*)(void *, void **)) & osip_alert_info_clone);

  if (i != 0) {
    osip_message_free(copy);
    return i;
  }

  i = osip_list_clone(&sip->allows, &copy->allows, (int (*)(void *, void **)) & osip_allow_clone);

  if (i != 0) {
    osip_message_free(copy);
    return i;
  }

  i = osip_list_clone(&sip->authentication_infos, &copy->authentication_infos, (int (*)(void *, void **)) & osip_authentication_info_clone);

  if (i != 0) {
    osip_message_free(copy);
    return i;
  }

  i = osip_list_clone(&sip->content_encodings, &copy->content_encodings, (int (*)(void *, void **)) & osip_content_encoding_clone);

  if (i != 0) {
    osip_message_free(copy);
    return i;
  }

  i = osip_list_clone(&sip->error_infos, &copy->error_infos, (int (*)(void *, void **)) & osip_error_info_clone);

  if (i != 0) {
    osip_message_free(copy);
    return i;
  }

  i = osip_list_clone(&sip->proxy_authentication_infos, &copy->proxy_authentication_infos, (int (*)(void *, void **)) & osip_proxy_authentication_info_clone);

  if (i != 0) {
    osip_message_free(copy);
    return i;
  }

#endif
  i = osip_list_clone(&sip->call_infos, &copy->call_infos, (int (*)(void *, void **)) & osip_call_info_clone);

  if (i != 0) {
    osip_message_free(copy);
    return i;
  }

  i = osip_list_clone(&sip->authorizations, &copy->authorizations, (int (*)(void *, void **)) & osip_authorization_clone);

  if (i != 0) {
    osip_message_free(copy);
    return i;
  }

  if (sip->call_id != NULL) {
    i = osip_call_id_clone(sip->call_id, &(copy->call_id));

    if (i != 0) {
      osip_message_free(copy);
      return i;
    }
  }

  i = osip_list_clone(&sip->contacts, &copy->contacts, (int (*)(void *, void **)) & osip_contact_clone);

  if (i != 0) {
    osip_message_free(copy);
    return i;
  }

  if (sip->content_length != NULL) {
    i = osip_content_length_clone(sip->content_length, &(copy->content_length));

    if (i != 0) {
      osip_message_free(copy);
      return i;
    }
  }

  if (sip->content_type != NULL) {
    i = osip_content_type_clone(sip->content_type, &(copy->content_type));

    if (i != 0) {
      osip_message_free(copy);
      return i;
    }
  }

  if (sip->cseq != NULL) {
    i = osip_cseq_clone(sip->cseq, &(copy->cseq));

    if (i != 0) {
      osip_message_free(copy);
      return i;
    }
  }

  if (sip->from != NULL) {
    i = osip_from_clone(sip->from, &(copy->from));

    if (i != 0) {
      osip_message_free(copy);
      return i;
    }
  }

  if (sip->mime_version != NULL) {
    i = osip_mime_version_clone(sip->mime_version, &(copy->mime_version));

    if (i != 0) {
      osip_message_free(copy);
      return i;
    }
  }

  i = osip_list_clone(&sip->proxy_authenticates, &copy->proxy_authenticates, (int (*)(void *, void **)) & osip_proxy_authenticate_clone);

  if (i != 0) {
    osip_message_free(copy);
    return i;
  }

  i = osip_list_clone(&sip->proxy_authorizations, &copy->proxy_authorizations, (int (*)(void *, void **)) & osip_proxy_authorization_clone);

  if (i != 0) {
    osip_message_free(copy);
    return i;
  }

  i = osip_list_clone(&sip->record_routes, &copy->record_routes, (int (*)(void *, void **)) & osip_record_route_clone);

  if (i != 0) {
    osip_message_free(copy);
    return i;
  }

  i = osip_list_clone(&sip->routes, &copy->routes, (int (*)(void *, void **)) & osip_route_clone);

  if (i != 0) {
    osip_message_free(copy);
    return i;
  }

  if (sip->to != NULL) {
    i = osip_to_clone(sip->to, &(copy->to));

    if (i != 0) {
      osip_message_free(copy);
      return i;
    }
  }

  i = osip_list_clone(&sip->vias, &copy->vias, (int (*)(void *, void **)) & osip_via_clone);

  if (i != 0) {
    osip_message_free(copy);
    return i;
  }

  i = osip_list_clone(&sip->www_authenticates, &copy->www_authenticates, (int (*)(void *, void **)) & osip_www_authenticate_clone);

  if (i != 0) {
    osip_message_free(copy);
    return i;
  }

  i = osip_list_clone(&sip->headers, &copy->headers, (int (*)(void *, void **)) & osip_header_clone);

  if (i != 0) {
    osip_message_free(copy);
    return i;
  }

  i = osip_list_clone(&sip->bodies, &copy->bodies, (int (*)(void *, void **)) & osip_body_clone);

  if (i != 0) {
    osip_message_free(copy);
    return i;
  }

  copy->message_length = sip->message_length;
  copy->message = osip_strdup(sip->message);

  if (copy->message == NULL && sip->message != NULL) {
    osip_message_free(copy);
    return OSIP_NOMEM;
  }

  copy->message_property = sip->message_property;
  copy->application_data = sip->application_data;

  *dest = copy;
  return OSIP_SUCCESS;
}

int osip_message_get_knownheaderlist(osip_list_t *header_list, int pos, void **dest) {
  *dest = NULL;

  if (osip_list_size(header_list) <= pos)
    return OSIP_UNDEFINED_ERROR; /* does not exist */

  *dest = (void *) osip_list_get(header_list, pos);
  return pos;
}