X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/48ed62d9a68c4e44c9fbaa6e300f88401bb32d65..80a47a2c9633437d4ceebd214cd44abfbd4f4543:/src/src/receive.c

diff --git a/src/src/receive.c b/src/src/receive.c
index 651121956..734ca7737 100644
--- a/src/src/receive.c
+++ b/src/src/receive.c
@@ -1,4 +1,4 @@
-/* $Cambridge: exim/src/src/receive.c,v 1.41 2007/08/22 14:20:28 ph10 Exp $ */
+/* $Cambridge: exim/src/src/receive.c,v 1.46 2009/06/10 07:34:04 tom Exp $ */
 
 /*************************************************
 *     Exim - an Internet mail transport agent    *
@@ -11,12 +11,8 @@
 
 #include "exim.h"
 
-#ifdef EXPERIMENTAL_DOMAINKEYS
-#define RECEIVE_GETC dk_receive_getc
-#define RECEIVE_UNGETC dk_receive_ungetc
-#else
-#define RECEIVE_GETC receive_getc
-#define RECEIVE_UNGETC receive_ungetc
+#ifdef EXPERIMENTAL_DCC
+extern int dcc_ok;
 #endif
 
 /*************************************************
@@ -572,7 +568,7 @@ if (!dot_ends)
   {
   register int last_ch = '\n';
 
-  for (; (ch = (RECEIVE_GETC)()) != EOF; last_ch = ch)
+  for (; (ch = (receive_getc)()) != EOF; last_ch = ch)
     {
     if (ch == 0) body_zerocount++;
     if (last_ch == '\r' && ch != '\n')
@@ -614,7 +610,7 @@ if (!dot_ends)
 
 ch_state = 1;
 
-while ((ch = (RECEIVE_GETC)()) != EOF)
+while ((ch = (receive_getc)()) != EOF)
   {
   if (ch == 0) body_zerocount++;
   switch (ch_state)
@@ -730,7 +726,7 @@ int ch_state = 0;
 register int ch;
 register int linelength = 0;
 
-while ((ch = (RECEIVE_GETC)()) != EOF)
+while ((ch = (receive_getc)()) != EOF)
   {
   if (ch == 0) body_zerocount++;
   switch (ch_state)
@@ -1388,10 +1384,9 @@ if (thismessage_size_limit <= 0) thismessage_size_limit = INT_MAX;
 message_linecount = body_linecount = body_zerocount =
   max_received_linelength = 0;
 
-#ifdef EXPERIMENTAL_DOMAINKEYS
-/* Call into DK to set up the context. Check if DK is to be run are carried out
-   inside dk_exim_verify_init(). */
-dk_exim_verify_init();
+#ifndef DISABLE_DKIM
+/* Call into DKIM to set up the context. */
+if (smtp_input && !smtp_batched_input && !dkim_disable_verify) dkim_exim_verify_init();
 #endif
 
 /* Remember the time of reception. Exim uses time+pid for uniqueness of message
@@ -1442,7 +1437,7 @@ next->text. */
 
 for (;;)
   {
-  int ch = (RECEIVE_GETC)();
+  int ch = (receive_getc)();
 
   /* If we hit EOF on a SMTP connection, it's an error, since incoming
   SMTP must have a correct "." terminator. */
@@ -1506,7 +1501,7 @@ for (;;)
   if (ch == '\n')
     {
     if (first_line_ended_crlf == TRUE_UNSET) first_line_ended_crlf = FALSE;
-      else if (first_line_ended_crlf) RECEIVE_UNGETC(' ');
+      else if (first_line_ended_crlf) receive_ungetc(' ');
     goto EOL;
     }
 
@@ -1521,13 +1516,13 @@ for (;;)
 
   if (ptr == 0 && ch == '.' && (smtp_input || dot_ends))
     {
-    ch = (RECEIVE_GETC)();
+    ch = (receive_getc)();
     if (ch == '\r')
       {
-      ch = (RECEIVE_GETC)();
+      ch = (receive_getc)();
       if (ch != '\n')
         {
-        RECEIVE_UNGETC(ch);
+        receive_ungetc(ch);
         ch = '\r';              /* Revert to CR */
         }
       }
@@ -1555,7 +1550,7 @@ for (;;)
 
   if (ch == '\r')
     {
-    ch = (RECEIVE_GETC)();
+    ch = (receive_getc)();
     if (ch == '\n')
       {
       if (first_line_ended_crlf == TRUE_UNSET) first_line_ended_crlf = TRUE;
@@ -1565,7 +1560,7 @@ for (;;)
     /* Otherwise, put back the character after CR, and turn the bare CR
     into LF SP. */
 
-    ch = (RECEIVE_UNGETC)(ch);
+    ch = (receive_ungetc)(ch);
     next->text[ptr++] = '\n';
     message_size++;
     ch = ' ';
@@ -1650,14 +1645,14 @@ for (;;)
 
   if (ch != EOF)
     {
-    int nextch = (RECEIVE_GETC)();
+    int nextch = (receive_getc)();
     if (nextch == ' ' || nextch == '\t')
       {
       next->text[ptr++] = nextch;
       message_size++;
       continue;                      /* Iterate the loop */
       }
-    else if (nextch != EOF) (RECEIVE_UNGETC)(nextch);   /* For next time */
+    else if (nextch != EOF) (receive_ungetc)(nextch);   /* For next time */
     else ch = EOF;                   /* Cause main loop to exit at end */
     }
 
@@ -1913,7 +1908,7 @@ for (h = header_list->next; h != NULL; h = h->next)
     /* Record whether a Date: or Resent-Date: header exists, as appropriate. */
 
     case htype_date:
-    date_header_exists = !resents_exist || is_resent;
+    if (!resents_exist || is_resent) date_header_exists = TRUE;
     break;
 
     /* Same comments as about Return-Path: below. */
@@ -2551,9 +2546,10 @@ if (from_header != NULL &&
     if (sender_address_unrewritten == NULL)
       sender_address_unrewritten = sender_address;
     sender_address = generated_sender_address;
-    log_write(L_address_rewrite, LOG_MAIN,
-      "\"%s\" from env-from rewritten as \"%s\" by submission mode",
-      sender_address_unrewritten, generated_sender_address);
+    if (Ustrcmp(sender_address_unrewritten, generated_sender_address) != 0)
+      log_write(L_address_rewrite, LOG_MAIN,
+        "\"%s\" from env-from rewritten as \"%s\" by submission mode",
+        sender_address_unrewritten, generated_sender_address);
     }
   }
 
@@ -2972,12 +2968,65 @@ else
   if (smtp_input && !smtp_batched_input)
     {
 
-#ifdef EXPERIMENTAL_DOMAINKEYS
-    dk_exim_verify_finish();
-#endif
+#ifndef DISABLE_DKIM
+    if (!dkim_disable_verify)
+      {
+      /* Finish verification, this will log individual signature results to
+         the mainlog */
+      dkim_exim_verify_finish();
+
+      /* Check if we must run the DKIM ACL */
+      if ((acl_smtp_dkim != NULL) &&
+          (dkim_verify_signers != NULL) &&
+          (dkim_verify_signers[0] != '\0'))
+        {
+        uschar *dkim_verify_signers_expanded =
+          expand_string(dkim_verify_signers);
+        if (dkim_verify_signers_expanded == NULL)
+          {
+          log_write(0, LOG_MAIN|LOG_PANIC,
+            "expansion of dkim_verify_signers option failed: %s",
+            expand_string_message);
+          }
+        else
+          {
+          int sep = 0;
+          uschar *ptr = dkim_verify_signers_expanded;
+          uschar *item = NULL;
+          uschar itembuf[256];
+          while ((item = string_nextinlist(&ptr, &sep,
+                                           itembuf,
+                                           sizeof(itembuf))) != NULL)
+            {
+            dkim_exim_acl_setup(item);
+            rc = acl_check(ACL_WHERE_DKIM, NULL, acl_smtp_dkim, &user_msg, &log_msg);
+            if (rc != OK) break;
+            }
+          add_acl_headers(US"DKIM");
+          if (rc == DISCARD)
+            {
+            recipients_count = 0;
+            blackholed_by = US"DKIM ACL";
+            if (log_msg != NULL)
+              blackhole_log_msg = string_sprintf(": %s", log_msg);
+            }
+          else if (rc != OK)
+            {
+            Uunlink(spool_name);
+            if (smtp_handle_acl_fail(ACL_WHERE_DKIM, rc, user_msg, log_msg) != 0)
+              smtp_yield = FALSE;    /* No more messsages after dropped connection */
+            smtp_reply = US"";       /* Indicate reply already sent */
+            message_id[0] = 0;       /* Indicate no message accepted */
+            goto TIDYUP;             /* Skip to end of function */
+            }
+          }
+        }
+      }
+#endif /* DISABLE_DKIM */
 
 #ifdef WITH_CONTENT_SCAN
-    if (acl_smtp_mime != NULL &&
+    if (recipients_count > 0 &&
+        acl_smtp_mime != NULL &&
         !run_mime_acl(acl_smtp_mime, &smtp_yield, &smtp_reply, &blackholed_by))
       goto TIDYUP;
 #endif /* WITH_CONTENT_SCAN */
@@ -3077,6 +3126,11 @@ else
 unspool_mbox();
 #endif
 
+#ifdef EXPERIMENTAL_DCC
+dcc_ok = 0;
+#endif
+
+
 /* The final check on the message is to run the scan_local() function. The
 version supplied with Exim always accepts, but this is a hook for sysadmins to
 supply their own checking code. The local_scan() function is run even when all
@@ -3511,8 +3565,8 @@ if (smtp_input && sender_host_address != NULL && !sender_host_notsocket &&
 
   if (select(fileno(smtp_in) + 1, &select_check, NULL, NULL, &tv) != 0)
     {
-    int c = (RECEIVE_GETC)();
-    if (c != EOF) (RECEIVE_UNGETC)(c); else
+    int c = (receive_getc)();
+    if (c != EOF) (receive_ungetc)(c); else
       {
       uschar *msg = US"SMTP connection lost after final dot";
       smtp_reply = US"";    /* No attempt to send a response */