Adding upstream version 3.4.23.upstream/3.4.23upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 391 insertions, 0 deletions

diff --git a/src/bounce/bounce_templates.c b/src/bounce/bounce_templates.c
new file mode 100644
index 0000000..11daece
--- /dev/null
+++ b/src/bounce/bounce_templates.c
@@ -0,0 +1,391 @@
+/*++
+/* NAME
+/*	bounce_templates 3
+/* SUMMARY
+/*	bounce template group support
+/* SYNOPSIS
+/*	#include <bounce_template.h>
+/*
+/*	typedef struct {
+/* .in +4
+/*		BOUNCE_TEMPLATE *failure;
+/*		BOUNCE_TEMPLATE *delay;
+/*		BOUNCE_TEMPLATE *success;
+/*		BOUNCE_TEMPLATE *verify;
+/* .in -4
+/*	} BOUNCE_TEMPLATES;
+/*
+/*	BOUNCE_TEMPLATES *bounce_templates_create(void)
+/*
+/*	void	bounce_templates_free(templates)
+/*	BOUNCE_TEMPLATES *templates;
+/*
+/*	void	bounce_templates_load(stream, templates)
+/*	VSTREAM	*stream;
+/*	BOUNCE_TEMPLATES *templates;
+/*
+/*	void	bounce_templates_expand(stream, templates)
+/*	VSTREAM	*stream;
+/*	BOUNCE_TEMPLATES *templates;
+/*
+/*	void	bounce_templates_dump(stream, templates)
+/*	VSTREAM	*stream;
+/*	BOUNCE_TEMPLATES *templates;
+/* DESCRIPTION
+/*	This module implements support for bounce template groups
+/*	(i.e. groups that contain one template of each type).
+/*
+/*	bounce_templates_create() creates a bounce template group,
+/*	with default settings.
+/*
+/*	bounce_templates_free() destroys a bounce template group.
+/*
+/*	bounce_templates_load() reads zero or more bounce templates
+/*	from the specified file to override built-in templates.
+/*
+/*	bounce_templates_expand() expands $name macros and writes
+/*	the text portions of the specified bounce template group
+/*	to the specified stream.
+/*
+/*	bounce_templates_dump() writes the complete content of the
+/*	specified bounce template group to the specified stream.
+/*	The format is compatible with bounce_templates_load().
+/* DIAGNOSTICS
+/*	Fatal error: out of memory, undefined macro name in template.
+/* SEE ALSO
+/*	bounce_template(3) bounce template support
+/* LICENSE
+/* .ad
+/* .fi
+/*	The Secure Mailer license must be distributed with this software.
+/* AUTHOR(S)
+/*	Wietse Venema
+/*	IBM T.J. Watson Research
+/*	P.O. Box 704
+/*	Yorktown Heights, NY 10598, USA
+/*--*/
+
+/* System library. */
+
+#include <sys_defs.h>
+#include <ctype.h>
+#include <string.h>
+
+/* Utility library. */
+
+#include <msg.h>
+#include <mymalloc.h>
+#include <stringops.h>
+#include <vstring.h>
+#include <vstream.h>
+#include <vstring_vstream.h>
+
+/* Global library. */
+
+#include <mail_addr.h>
+#include <mail_proto.h>
+
+/* Application-specific. */
+
+#include <bounce_template.h>
+
+ /*
+  * The fail template is for permanent failure.
+  */
+static const char *def_bounce_failure_body[] = {
+    "This is the mail system at host $myhostname.",
+    "",
+    "I'm sorry to have to inform you that your message could not",
+    "be delivered to one or more recipients. It's attached below.",
+    "",
+    "For further assistance, please send mail to " MAIL_ADDR_POSTMASTER ".",
+    "",
+    "If you do so, please include this problem report. You can",
+    "delete your own text from the attached returned message.",
+    "",
+    "                   The mail system",
+    0,
+};
+
+static const BOUNCE_TEMPLATE def_bounce_failure_template = {
+    0,
+    BOUNCE_TMPL_CLASS_FAILURE,
+    "[built-in]",
+    "us-ascii",
+    MAIL_ATTR_ENC_7BIT,
+    MAIL_ADDR_MAIL_DAEMON " (Mail Delivery System)",
+    "Undelivered Mail Returned to Sender",
+    "Postmaster Copy: Undelivered Mail",
+    def_bounce_failure_body,
+    &def_bounce_failure_template,
+};
+
+ /*
+  * The delay template is for delayed mail notifications.
+  */
+static const char *def_bounce_delay_body[] = {
+    "This is the mail system at host $myhostname.",
+    "",
+    "####################################################################",
+    "# THIS IS A WARNING ONLY.  YOU DO NOT NEED TO RESEND YOUR MESSAGE. #",
+    "####################################################################",
+    "",
+    "Your message could not be delivered for more than $delay_warning_time_hours hour(s)."
+    ,
+    "It will be retried until it is $maximal_queue_lifetime_days day(s) old.",
+    "",
+    "For further assistance, please send mail to " MAIL_ADDR_POSTMASTER ".",
+    "",
+    "If you do so, please include this problem report. You can",
+    "delete your own text from the attached returned message.",
+    "",
+    "                   The mail system",
+    0,
+};
+
+static const BOUNCE_TEMPLATE def_bounce_delay_template = {
+    0,
+    BOUNCE_TMPL_CLASS_DELAY,
+    "[built-in]",
+    "us-ascii",
+    MAIL_ATTR_ENC_7BIT,
+    MAIL_ADDR_MAIL_DAEMON " (Mail Delivery System)",
+    "Delayed Mail (still being retried)",
+    "Postmaster Warning: Delayed Mail",
+    def_bounce_delay_body,
+    &def_bounce_delay_template
+};
+
+ /*
+  * The success template is for "delivered", "expanded" and "relayed" success
+  * notifications.
+  */
+static const char *def_bounce_success_body[] = {
+    "This is the mail system at host $myhostname.",
+    "",
+    "Your message was successfully delivered to the destination(s)",
+    "listed below. If the message was delivered to mailbox you will",
+    "receive no further notifications. Otherwise you may still receive",
+    "notifications of mail delivery errors from other systems.",
+    "",
+    "                   The mail system",
+    0,
+};
+
+static const BOUNCE_TEMPLATE def_bounce_success_template = {
+    0,
+    BOUNCE_TMPL_CLASS_SUCCESS,
+    "[built-in]",
+    "us-ascii",
+    MAIL_ATTR_ENC_7BIT,
+    MAIL_ADDR_MAIL_DAEMON " (Mail Delivery System)",
+    "Successful Mail Delivery Report",
+    0,
+    def_bounce_success_body,
+    &def_bounce_success_template,
+};
+
+ /*
+  * The "verify" template is for verbose delivery (sendmail -v) and for
+  * address verification (sendmail -bv).
+  */
+static const char *def_bounce_verify_body[] = {
+    "This is the mail system at host $myhostname.",
+    "",
+    "Enclosed is the mail delivery report that you requested.",
+    "",
+    "                   The mail system",
+    0,
+};
+
+static const BOUNCE_TEMPLATE def_bounce_verify_template = {
+    0,
+    BOUNCE_TMPL_CLASS_VERIFY,
+    "[built-in]",
+    "us-ascii",
+    MAIL_ATTR_ENC_7BIT,
+    MAIL_ADDR_MAIL_DAEMON " (Mail Delivery System)",
+    "Mail Delivery Status Report",
+    0,
+    def_bounce_verify_body,
+    &def_bounce_verify_template,
+};
+
+ /*
+  * SLMs.
+  */
+#define STR(x)	vstring_str(x)
+
+/* bounce_templates_create - create template group */
+
+BOUNCE_TEMPLATES *bounce_templates_create(void)
+{
+    BOUNCE_TEMPLATES *bs;
+
+    bs = (BOUNCE_TEMPLATES *) mymalloc(sizeof(*bs));
+    bs->failure = bounce_template_create(&def_bounce_failure_template);
+    bs->delay = bounce_template_create(&def_bounce_delay_template);
+    bs->success = bounce_template_create(&def_bounce_success_template);
+    bs->verify = bounce_template_create(&def_bounce_verify_template);
+    return (bs);
+}
+
+/* bounce_templates_free - destroy template group */
+
+void    bounce_templates_free(BOUNCE_TEMPLATES *bs)
+{
+    bounce_template_free(bs->failure);
+    bounce_template_free(bs->delay);
+    bounce_template_free(bs->success);
+    bounce_template_free(bs->verify);
+    myfree((void *) bs);
+}
+
+/* bounce_templates_load - load template or group from stream */
+
+void    bounce_templates_load(VSTREAM *fp, BOUNCE_TEMPLATES *ts)
+{
+    VSTRING *line_buf;
+    char   *member_name;
+    VSTRING *multi_line_buf = 0;
+    VSTRING *saved_member_name = 0;
+    VSTRING *saved_end_marker = 0;
+    char   *value;
+    int     lineno;
+    const char *err;
+    char   *cp;
+    int     len;			/* Grr... */
+
+    /*
+     * XXX That's a lot of non-reusable code to parse a configuration file.
+     * Unfortunately, much of the "name = value" infrastructure is married to
+     * the dict(3) class which doesn't really help here.
+     */
+    line_buf = vstring_alloc(100);
+    lineno = 1;
+    while (vstring_get_nonl(line_buf, fp) > 0) {
+	lineno++;
+	cp = STR(line_buf) + strspn(STR(line_buf), " \t\n\v\f\r");
+	if (*cp == 0 || *cp == '#')
+	    continue;
+	if ((err = split_nameval(STR(line_buf), &member_name, &value)) != 0)
+	    msg_fatal("%s, line %d: %s: \"%s\"",
+		      VSTREAM_PATH(fp), lineno, err, STR(line_buf));
+	if (value[0] == '<' && value[1] == '<') {
+	    value += 2;
+	    while (ISSPACE(*value))
+		value++;
+	    if (*value == 0)
+		msg_fatal("%s, line %d: missing end marker after <<",
+			  VSTREAM_PATH(fp), lineno);
+	    if (!ISALNUM(*value))
+		msg_fatal("%s, line %d: malformed end marker after <<",
+			  VSTREAM_PATH(fp), lineno);
+	    if (multi_line_buf == 0) {
+		saved_member_name = vstring_alloc(100);
+		saved_end_marker = vstring_alloc(100);
+		multi_line_buf = vstring_alloc(100);
+	    } else
+		VSTRING_RESET(multi_line_buf);
+	    vstring_strcpy(saved_member_name, member_name);
+	    vstring_strcpy(saved_end_marker, value);
+	    while (vstring_get_nonl(line_buf, fp) > 0) {
+		lineno++;
+		if (strcmp(STR(line_buf), STR(saved_end_marker)) == 0)
+		    break;
+		if (VSTRING_LEN(multi_line_buf) > 0)
+		    vstring_strcat(multi_line_buf, "\n");
+		vstring_strcat(multi_line_buf, STR(line_buf));
+	    }
+	    if (vstream_feof(fp))
+		msg_warn("%s, line %d: missing \"%s\" end marker",
+			 VSTREAM_PATH(fp), lineno, value);
+	    member_name = STR(saved_member_name);
+	    value = STR(multi_line_buf);
+	}
+#define MATCH_TMPL_NAME(tname, tname_len, mname) \
+    (strncmp(tname, mname, tname_len = strlen(tname)) == 0 \
+	&& strcmp(mname + tname_len, "_template") == 0)
+
+	if (MATCH_TMPL_NAME(ts->failure->class, len, member_name))
+	    bounce_template_load(ts->failure, VSTREAM_PATH(fp), value);
+	else if (MATCH_TMPL_NAME(ts->delay->class, len, member_name))
+	    bounce_template_load(ts->delay, VSTREAM_PATH(fp), value);
+	else if (MATCH_TMPL_NAME(ts->success->class, len, member_name))
+	    bounce_template_load(ts->success, VSTREAM_PATH(fp), value);
+	else if (MATCH_TMPL_NAME(ts->verify->class, len, member_name))
+	    bounce_template_load(ts->verify, VSTREAM_PATH(fp), value);
+	else
+	    msg_warn("%s, line %d: unknown template name: %s "
+		     "-- ignoring this template",
+		     VSTREAM_PATH(fp), lineno, member_name);
+    }
+    vstring_free(line_buf);
+    if (multi_line_buf) {
+	vstring_free(saved_member_name);
+	vstring_free(saved_end_marker);
+	vstring_free(multi_line_buf);
+    }
+}
+
+/* bounce_plain_out - output line as plain text */
+
+static int bounce_plain_out(VSTREAM *fp, const char *text)
+{
+    vstream_fprintf(fp, "%s\n", text);
+    return (0);
+}
+
+/* bounce_templates_expand - dump expanded template group text to stream */
+
+void    bounce_templates_expand(VSTREAM *fp, BOUNCE_TEMPLATES *ts)
+{
+    BOUNCE_TEMPLATE *tp;
+
+    tp = ts->failure;
+    vstream_fprintf(fp, "expanded_%s_text = <<EOF\n", tp->class);
+    bounce_template_expand(bounce_plain_out, fp, tp);
+    vstream_fprintf(fp, "EOF\n\n");
+
+    tp = ts->delay;
+    vstream_fprintf(fp, "expanded_%s_text = <<EOF\n", tp->class);
+    bounce_template_expand(bounce_plain_out, fp, tp);
+    vstream_fprintf(fp, "EOF\n\n");
+
+    tp = ts->success;
+    vstream_fprintf(fp, "expanded_%s_text = <<EOF\n", tp->class);
+    bounce_template_expand(bounce_plain_out, fp, tp);
+    vstream_fprintf(fp, "EOF\n\n");
+
+    tp = ts->verify;
+    vstream_fprintf(fp, "expanded_%s_text = <<EOF\n", tp->class);
+    bounce_template_expand(bounce_plain_out, fp, tp);
+    vstream_fprintf(fp, "EOF\n");
+}
+
+/* bounce_templates_dump - dump bounce template group to stream */
+
+void    bounce_templates_dump(VSTREAM *fp, BOUNCE_TEMPLATES *ts)
+{
+    BOUNCE_TEMPLATE *tp;
+
+    tp = ts->failure;
+    vstream_fprintf(fp, "%s_template = <<EOF\n", tp->class);
+    bounce_template_dump(fp, tp);
+    vstream_fprintf(fp, "EOF\n\n");
+
+    tp = ts->delay;
+    vstream_fprintf(fp, "%s_template = <<EOF\n", tp->class);
+    bounce_template_dump(fp, tp);
+    vstream_fprintf(fp, "EOF\n\n");
+
+    tp = ts->success;
+    vstream_fprintf(fp, "%s_template = <<EOF\n", tp->class);
+    bounce_template_dump(fp, tp);
+    vstream_fprintf(fp, "EOF\n\n");
+
+    tp = ts->verify;
+    vstream_fprintf(fp, "%s_template = <<EOF\n", tp->class);
+    bounce_template_dump(fp, tp);
+    vstream_fprintf(fp, "EOF\n");
+}