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To satisfy some legal concerns, add an option for chan_sip to include a 

disclaimer along with SIP messages in the header, X-Disclaimer.  This is off by
default.  Also, the text of the disclaimer can be customized in sip.conf.


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@66777 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Russell Bryant 2007-05-31 19:41:03 +00:00
parent ce4051a803
commit 3d2b58751f
2 changed files with 63 additions and 1 deletions
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37
channels/chan_sip.c
View File

@ -533,6 +533,19 @@ static const struct cfsip_options {
#define DEFAULT_USERAGENT "Asterisk PBX" /*!< Default Useragent: header unless re-defined in sip.conf */
#endif
/*! An option disclaimer that will be added to all SIP messages. */
static struct ast_str *global_disclaimer;
#define DEFAULT_DISCLAIMER \
"This message and all contents are covered by the Electronic Communications " \
"Privacy Act, 18 U.S.C. Sections 2510-2521, is confidential and may be legally " \
"privileged. It is intended to be conveyed only to the designated recipient(s). " \
"If you are not the intended recipient, you are hereby notified that any " \
"retention, dissemination, distribution or copying of this communication is " \
"strictly prohibited and that use, dissemination, distribution or reproduction " \
"of this message by unintended recipients is not authorized and may be unlawful. " \
"Please reply to sender that you have received the message in error, " \
"then delete it. Thank you."
/* Default setttings are used as a channel setting and as a default when
configuring devices */
@ -817,6 +830,7 @@ struct sip_auth {
#define SIP_PAGE2_TEXTSUPPORT (1 << 28) /*!< 28: Global text enable */
#define SIP_PAGE2_DEBUG_TEXT (1 << 29) /*!< 29: Global text debug */
#define SIP_PAGE2_OUTGOING_CALL (1 << 30) /*!< 30: Is this an outgoing call? */
#define SIP_PAGE2_DISCLAIMER (1 << 31) /*!< 31: Include disclaimer in SIP requests and responses. */
#define SIP_PAGE2_FLAGS_TO_COPY \
(SIP_PAGE2_ALLOWSUBSCRIBE | SIP_PAGE2_ALLOWOVERLAP | SIP_PAGE2_VIDEOSUPPORT | \
@ -2364,6 +2378,9 @@ static int send_response(struct sip_pvt *p, struct sip_request *req, enum xmitty
{
int res;
if (ast_test_flag(&global_flags[1], SIP_PAGE2_DISCLAIMER) && !ast_strlen_zero(global_disclaimer->str))
add_header(req, "X-Disclaimer", global_disclaimer->str);
add_blank(req);
if (sip_debug_test_pvt(p)) {
const struct sockaddr_in *dst = sip_real_dst(p);
@ -2399,6 +2416,9 @@ static int send_request(struct sip_pvt *p, struct sip_request *req, enum xmittyp
p->sa = p->outboundproxy->ip;
}
if (ast_test_flag(&global_flags[1], SIP_PAGE2_DISCLAIMER) && !ast_strlen_zero(global_disclaimer->str))
add_header(req, "X-Disclaimer", global_disclaimer->str);
add_blank(req);
if (sip_debug_test_pvt(p)) {
if (ast_test_flag(&p->flags[0], SIP_NAT_ROUTE))
@ -17341,6 +17361,14 @@ static int reload_config(enum channelreloadreason reason)
ast_clear_flag(&global_flags[1], SIP_PAGE2_VIDEOSUPPORT);
ast_clear_flag(&global_flags[1], SIP_PAGE2_TEXTSUPPORT);
/* Set the default disclaimer settings */
ast_clear_flag(&global_flags[1], SIP_PAGE2_DISCLAIMER);
if (!global_disclaimer) {
if (!(global_disclaimer = ast_str_create(80)))
return -1;
}
ast_str_set(&global_disclaimer, 0, DEFAULT_DISCLAIMER);
/* Read the [general] config section of sip.conf (or from realtime config) */
for (v = ast_variable_browse(cfg, "general"); v; v = v->next) {
if (handle_common_options(&global_flags[0], &dummy[0], v))
@ -17593,6 +17621,10 @@ static int reload_config(enum channelreloadreason reason)
default_maxcallbitrate = DEFAULT_MAX_CALL_BITRATE;
} else if (!strcasecmp(v->name, "matchexterniplocally")) {
global_matchexterniplocally = ast_true(v->value);
} else if (!strcasecmp(v->name, "enabledisclaimer")) {
ast_set2_flag(&global_flags[1], ast_true(v->value), SIP_PAGE2_DISCLAIMER);
} else if (!strcasecmp(v->name, "disclaimertext")) {
ast_str_set(&global_disclaimer, 0, v->value);
}
}
@ -18611,7 +18643,10 @@ static int unload_module(void)
clear_sip_domains();
close(sipsock);
sched_context_destroy(sched);
if (global_disclaimer)
free(global_disclaimer);
return 0;
}

27
configs/sip.conf.sample
View File

@ -463,6 +463,33 @@ srvlookup=yes ; Enable DNS SRV lookups on outbound calls
; jblog = no ; Enables jitterbuffer frame logging. Defaults to "no".
;-----------------------------------------------------------------------------------
;---- Disclaimer Settings ----------------------------------------------------------
;
;enabledisclaimer = no ; This option enables sending a disclaimer along with all
; ; SIP messages. Generally, this would be some sort of legal
; ; statement. Note that the legal implications of using this
; ; with a SIP proxy are not quite clear if the disclaimer
; ; indicates that the message contents can not be used by
; ; any party excepted the intended recipient, so it should
; ; probably not be used in a network that contains proxies.
; ; The default is "no".
;
;dislciamertext = Your custom disclaimer here.
; ; You can configure a custom disclaimer with this option.
; ; Note that you must keep the entire disclaimer on one line.
; ; The default text is:
; ; "This message and all contents are covered by the Electronic Communications "
; ; "Privacy Act, 18 U.S.C. Sections 2510-2521, is confidential and may be legally "
; ; "privileged. It is intended to be conveyed only to the designated recipient(s). "
; ; "If you are not the intended recipient, you are hereby notified that any "
; ; "retention, dissemination, distribution or copying of this communication is "
; ; "strictly prohibited and that use, dissemination, distribution or reproduction "
; ; "of this message by unintended recipients is not authorized and may be unlawful. "
; ; "Please reply to sender that you have received the message in error, "
; ; "then delete it. Thank you."
;
;-----------------------------------------------------------------------------------
[authentication]
; Global credentials for outbound calls, i.e. when a proxy challenges your
; Asterisk server for authentication. These credentials override