[exim-cvs] Add timeout option to spamd_address server specif…

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Címzett: exim-cvs
Tárgy: [exim-cvs] Add timeout option to spamd_address server specification. Bug 68
Gitweb: http://git.exim.org/exim.git/commitdiff/237638980ecece7f98c1dbdb9a02382d7f772dca
Commit:     237638980ecece7f98c1dbdb9a02382d7f772dca
Parent:     2aad5761b59a709d98a7d278d83e978ac4e83c2b
Author:     Jeremy Harris <jgh146exb@???>
AuthorDate: Wed Jan 28 21:19:14 2015 +0000
Committer:  Jeremy Harris <jgh146exb@???>
CommitDate: Wed Jan 28 21:23:43 2015 +0000


    Add timeout option to spamd_address server specification.  Bug 68
---
 doc/doc-docbook/spec.xfpt |    7 +++++++
 doc/doc-txt/ChangeLog     |    5 ++++-
 src/src/malware.c         |    4 +---
 src/src/spam.c            |   45 ++++++++++++++++++++++++++++++---------------
 4 files changed, 42 insertions(+), 19 deletions(-)


diff --git a/doc/doc-docbook/spec.xfpt b/doc/doc-docbook/spec.xfpt
index cb3d78d..3e9cb73 100644
--- a/doc/doc-docbook/spec.xfpt
+++ b/doc/doc-docbook/spec.xfpt
@@ -30790,12 +30790,19 @@ The supported option are:
 .code
 variant=rspamd      Use Rspamd rather than SpamAssassin protocol
 time=<start>-<end>  Use only between these times of day
+tmo=<timespec>      Connection time limit.
 weight=<value>      Selection bias
 backup              Use only if all non-backup servers fail
 .endd


Time specifications for the &`time`& option are <hour>.<minute>.<second>
in the local time zone; each element being one or more digits.
+Either the seconds or both minutes and seconds, plus the leading &`.`&
+characters, may be omitted and will be taken as zero.
+
+Timeout specifications for the &`tmo`& option are the usual Exim
+time interval standard, eg. &`20s`& or &`1m`&.
+The default value is two minutes.

Servers are queried in a random fashion, weighted by the selection bias.
The default value for selection bias is 1.
diff --git a/doc/doc-txt/ChangeLog b/doc/doc-txt/ChangeLog
index fbfe750..5b21552 100644
--- a/doc/doc-txt/ChangeLog
+++ b/doc/doc-txt/ChangeLog
@@ -37,7 +37,7 @@ JH/08 The EXPERIMENTAL_DSN compile option is no longer needed; all Delivery

 JH/09 A timeout of 2 minutes is now applied to all malware scanner types by
       default, modifiable by a malware= option.  The list separator for
-      the options can now be changed in the usual way.
+      the options can now be changed in the usual way.  Bug 68.


JH/10 The smtp_receive_timeout main option is now expanded before use.

@@ -61,6 +61,9 @@ JH/16 The spamd_address main option now supports a mixed list of local
       and remote servers.  Remote servers can be IPv6 addresses, and
       specify a port-range.


+JH/17 Bug 68: The spamd_address main option now supports an optional
+      timeout value per server.
+



 Exim version 4.85
diff --git a/src/src/malware.c b/src/src/malware.c
index 2a1e216..3ef1498 100644
--- a/src/src/malware.c
+++ b/src/src/malware.c
@@ -1205,7 +1205,6 @@ if (!malware_ok)
       unsigned int fsize_uint;
       BOOL use_scan_command = FALSE;
       clamd_address_container * clamd_address_vector[MAX_CLAMD_SERVERS];
-      int current_server;
       int num_servers = 0;
 #ifdef WITH_OLD_CLAMAV_STREAM
       unsigned int port;
@@ -1289,8 +1288,7 @@ if (!malware_ok)
     while (num_servers > 0)
       {
       int i;
-      /* Randomly pick a server to start with */
-      current_server = random_number( num_servers );
+      int current_server = random_number( num_servers );


       DEBUG(D_acl)
         debug_printf("trying server name %s, port %u\n",
diff --git a/src/src/spam.c b/src/src/spam.c
index 76db2b6..8817af0 100644
--- a/src/src/spam.c
+++ b/src/src/spam.c
@@ -21,8 +21,10 @@ int spam_ok = 0;
 int spam_rc = 0;
 uschar *prev_spamd_address_work = NULL;


+static int timeout_sec;
static const uschar * loglabel = US"spam acl condition:";

+
static int
spamd_param_init(spamd_address_container *spamd)
{
@@ -38,7 +40,7 @@ static int
spamd_param(const uschar *param, spamd_address_container *spamd)
{
static int timesinceday = -1;
-uschar buffer[256];
+const uschar * s;

/* check backup parameter */
if (Ustrcmp(param, "backup") == 0)
@@ -58,32 +60,30 @@ if (sscanf(param, "weight=%u", &spamd->weight))
}

/* check time parameter */
-if (sscanf(param, "time=%s", buffer))
+if (Ustrncmp(param, "time=", 5) == 0)
{
unsigned int start_h = 0, start_m = 0, start_s = 0;
unsigned int end_h = 24, end_m = 0, end_s = 0;
unsigned int time_start, time_end;
- uschar *start_string;
- uschar *end_string;
- uschar *delimiter;
+ const uschar * end_string;

-  if ((delimiter = US strchr(CS buffer, '-')))
+  s = param+5;
+  if ((end_string = Ustrchr(s, '-')))
     {
-    *delimiter   = '\0';
-    start_string = buffer;
-    end_string   = delimiter + 1;
-    if (sscanf(CS end_string, "%u.%u.%u", &end_h, &end_m, &end_s) == 0 ||
-      sscanf(CS start_string, "%u.%u.%u", &start_h, &start_m, &start_s) == 0)
+    end_string++;
+    if (  sscanf(CS end_string, "%u.%u.%u", &end_h,   &end_m,   &end_s)   == 0
+       || sscanf(CS s,          "%u.%u.%u", &start_h, &start_m, &start_s) == 0
+       )
       {
       log_write(0, LOG_MAIN,
-    "%s warning - invalid spamd time value: '%s'", loglabel, buffer);
+    "%s warning - invalid spamd time value: '%s'", loglabel, s);
       return -1; /* syntax error */
       }
     }
   else
     {
     log_write(0, LOG_MAIN,
-    "%s warning - invalid spamd time value: '%s'", loglabel, buffer);
+      "%s warning - invalid spamd time value: '%s'", loglabel, s);
     return -1; /* syntax error */
     }


@@ -109,6 +109,19 @@ if (Ustrcmp(param, "variant=rspamd") == 0)
return 0;
}

+if (Ustrncmp(param, "tmo=", 4) == 0)
+  {
+  int sec = readconf_readtime((s = param+4), '\0', FALSE);
+  if (sec < 0)
+    {
+    log_write(0, LOG_MAIN,
+      "%s warning - invalid spamd timeout value: '%s'", loglabel, s);
+    return -1; /* syntax error */
+    }
+  timeout_sec = sec;
+  return 0;
+  }
+
 log_write(0, LOG_MAIN, "%s warning - invalid spamd parameter: '%s'",
   loglabel, param);
 return -1; /* syntax error */
@@ -211,6 +224,8 @@ if ( (Ustrcmp(user_name,"0") == 0) ||
      (strcmpic(user_name,US"false") == 0) )
   return FAIL;


+timeout_sec = SPAMD_TIMEOUT;
+
 /* if there is an additional option, check if it is "true" */
 if (strcmpic(list,US"true") == 0)
   /* in that case, always return true later */
@@ -434,7 +449,7 @@ again:
       "%s %s on spamd socket", loglabel, strerror(errno));
       else
     {
-    if (time(NULL) - start < SPAMD_TIMEOUT)
+    if (time(NULL) - start < timeout_sec)
       goto again;
     log_write(0, LOG_MAIN|LOG_PANIC,
       "%s timed out writing spamd socket", loglabel);
@@ -479,7 +494,7 @@ offset = 0;
 while ((i = ip_recv(spamd_sock,
            spamd_buffer + offset,
            sizeof(spamd_buffer) - offset - 1,
-           SPAMD_TIMEOUT - time(NULL) + start)) > 0 )
+           timeout_sec - time(NULL) + start)) > 0 )
   offset += i;


/* error handling */