[exim-cvs] Router variables: change list-separator to semico…

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Author: Exim Git Commits Mailing List
Date:  
To: exim-cvs
Subject: [exim-cvs] Router variables: change list-separator to semicolon
Gitweb: https://git.exim.org/exim.git/commitdiff/b436dd41913533c013e88c513e2ceab89c86f120
Commit:     b436dd41913533c013e88c513e2ceab89c86f120
Parent:     e41242f9612adaedadd5f3607b202f32ca086b4f
Author:     Jeremy Harris <jgh146exb@???>
AuthorDate: Mon Jul 15 12:51:42 2019 +0100
Committer:  Jeremy Harris <jgh146exb@???>
CommitDate: Mon Jul 15 14:14:36 2019 +0100


    Router variables: change list-separator to semicolon
---
 doc/doc-docbook/spec.xfpt    |  5 ++--
 src/src/readconf.c           |  5 +++-
 src/src/route.c              | 56 +++++++-------------------------------------
 test/confs/0620              | 27 +++++++++++++++++----
 test/mail/0620.b             |  6 ++++-
 test/scripts/0000-Basic/0620 |  4 ++++
 6 files changed, 46 insertions(+), 57 deletions(-)


diff --git a/doc/doc-docbook/spec.xfpt b/doc/doc-docbook/spec.xfpt
index 37ada75..dd04396 100644
--- a/doc/doc-docbook/spec.xfpt
+++ b/doc/doc-docbook/spec.xfpt
@@ -19011,13 +19011,12 @@ matters.
.cindex router variables
This option may be used multiple times on a router;
because of this the list aspect is mostly irrelevant.
-The list separator is a colon but can be changed in the
+The list separator is a semicolon but can be changed in the
usual way.

 Each list-element given must be of the form $"name = value"$
 and the names used must start with the string &"r_"&.
-Values containing colons should either have them doubled, or
-the entire list should be prefixed with a list-separator change.
+Values containing a list-separator should have them doubled.
 When a router runs, the strings are evaluated in order,
 to create variables which are added to the set associated with
 the address.
diff --git a/src/src/readconf.c b/src/src/readconf.c
index b9d1935..a7cf03d 100644
--- a/src/src/readconf.c
+++ b/src/src/readconf.c
@@ -1770,7 +1770,10 @@ switch (type)
       }
     else if (ol->type & opt_rep_str)
       {
-      uschar sep_o = Ustrncmp(name, "headers_add", 11)==0 ? '\n' : ':';
+      uschar sep_o =
+    Ustrncmp(name, "headers_add", 11) == 0    ? '\n'
+    : Ustrncmp(name, "set", 3) == 0        ? ';'
+    : ':';
       int    sep_i = -(int)sep_o;
       const uschar * list = sptr;
       uschar * s;
diff --git a/src/src/route.c b/src/src/route.c
index 416effd..b693049 100644
--- a/src/src/route.c
+++ b/src/src/route.c
@@ -1416,7 +1416,7 @@ set_router_vars(address_item * addr, const router_instance * r)
 {
 const uschar * varlist = r->set;
 tree_node ** root = (tree_node **) &addr->prop.variables;
-int sep = 0;
+int sep = ';';


if (!varlist) return OK;

@@ -1433,7 +1433,11 @@ for (uschar * ele; (ele = string_nextinlist(&varlist, &sep, NULL, 0)); )
/* Variable name must exist and start "r_". */

   if (!name || name[0] != 'r' || name[1] != '_' || !name[2])
+    {
+    log_write(0, LOG_MAIN|LOG_PANIC,
+    "bad router variable name '%s' in router '%s'\n", name, r->name);
     return FAIL;
+    }
   name += 2;


while (isspace(*assignment)) assignment++;
@@ -1690,54 +1694,12 @@ for (r = addr->start_router ? addr->start_router : routers; r; r = nextr)
router traversal. On the addr string they are held as a variable tree, so
as to maintain the post-expansion taints separate. */

-  if ((yield = set_router_vars(addr, r)) != OK)
-    if (yield == PASS)
-      continue;        /* with next router */
-    else
-      goto ROUTE_EXIT;
-
-#ifdef notdef
-  if (r->set)
+  switch (set_router_vars(addr, r))
     {
-    const uschar * list = r->set;
-    int sep = 0;
-    for (uschar * ele; (ele = string_nextinlist(&list, &sep, NULL, 0)); )
-      {
-      uschar * ee;
-      if (!(ee = expand_string(ele)))
-    if (f.expand_string_forcedfail)
-      {
-      DEBUG(D_route) debug_printf("forced failure in expansion of \"%s\" "
-          "(router variable): decline action taken\n", ele);
-
-      /* Expand "more" if necessary; DEFER => an expansion failed */
-
-      yield = exp_bool(addr, US"router", r->name, D_route,
-              US"more", r->more, r->expand_more, &more);
-      if (yield != OK) goto ROUTE_EXIT;
-
-      if (!more)
-        {
-        DEBUG(D_route)
-          debug_printf("\"more\"=false: skipping remaining routers\n");
-        router_name = NULL;
-        r = NULL;
-        break;
-        }
-      else continue;    /* With next router */
-      }
-    else
-      {
-      addr->message = string_sprintf("expansion of \"%s\" failed "
-        "in %s router: %s", ele, r->name, expand_string_message);
-      yield = DEFER;
-      goto ROUTE_EXIT;
-      }
-
-      addr->prop.set = string_append_listele(addr->prop.set, ':', ee);
-      }
+    case OK:    break;
+    case PASS:    continue;        /* with next router */
+    default:     goto ROUTE_EXIT;
     }
-#endif


/* Finally, expand the address_data field in the router. Forced failure
behaves as if the router declined. Any other failure is more serious. On
diff --git a/test/confs/0620 b/test/confs/0620
index 15e31f1..7f1b694 100644
--- a/test/confs/0620
+++ b/test/confs/0620
@@ -13,25 +13,43 @@ acl_not_smtp = not_smtp
begin acl

not_smtp:
- accept log_message = rcpt <$recipients> l <$local_part>
+ accept log_message = rcpts <$recipients> local_part <$local_part>

# ----- Routers -----

begin routers

+hide_verifies:
+  driver =    accept
+  verify_only
+
 alias:
   driver =    redirect
   debug_print = DEBUG: $r_r1 $r_r2
   data =    b
-  set =    <;    r_r1 = <$local_part> aaa:bbb bar=baz
+        # r_r1 checks that a variable with tainted data is ok
+        #    that the default list-sep ":" is not used for this list
+        #    that an '=' on the RHS is ok
+  set =        r_r1 = <$local_part> aaa:bbb bar=baz
+        # r_local checks that a variable is immediately usable
   set =        r_local = check
   errors_to =    bad_$r_local


 user:
   driver =    accept
   debug_print = DEBUG: $r_r1 $r_r2
+        # r_r1 vs. r_r2 checks we can have multiple "set" options
   set =        r_r1 = $local_part
-  set =    <;    r_r2 = $local_part 2a00:1940:100::ff:0:1 foo=bar
+  set =        r_r2 = $local_part \
+            2a00:1940:100::ff:0:1 \
+            foo=bar \
+            # check we can get a newline into content
+            newline=initial\n\tcont \
+            # check we can get a list-sep into content (by doubling)
+            semicolon=initial;;cont \
+        ; \
+        # r_r3 checks we can have a list as arg for a "set" option
+        r_r3 = bletch
   transport =    local_delivery



@@ -44,8 +62,7 @@ local_delivery:
   envelope_to_add
   file = DIR/test-mail/$local_part
   user = CALLER
-  debug_print = DEBUG: $r_r1 $r_r2
-  headers_add =    X-r1: <$r_r1>\nX-r2: <$r_r2>
+  headers_add =    X-r1: <$r_r1>\nX-r2: <$r_r2>\nX-r3: <$r_r3>



 # End
diff --git a/test/mail/0620.b b/test/mail/0620.b
index 5840bc9..ef81a09 100644
--- a/test/mail/0620.b
+++ b/test/mail/0620.b
@@ -4,10 +4,14 @@ Received: from CALLER by the.local.host.name with local (Exim x.yz)
     (envelope-from <CALLER@???>)
     id 10HmaX-0005vi-00
     for a@???; Tue, 2 Mar 1999 09:44:33 +0000
+Subject: foo
 Message-Id: <E10HmaX-0005vi-00@???>
 From: CALLER_NAME <CALLER@???>
 Date: Tue, 2 Mar 1999 09:44:33 +0000
 X-r1: <b>
-X-r2: <b 2a00:1940:100::ff:0:1 foo=bar>
+X-r2: <b 2a00:1940:100::ff:0:1 foo=bar newline=initial
+    cont semicolon=initial;cont>
+X-r3: <bletch>


+body

diff --git a/test/scripts/0000-Basic/0620 b/test/scripts/0000-Basic/0620
index 0f662f1..96d5988 100644
--- a/test/scripts/0000-Basic/0620
+++ b/test/scripts/0000-Basic/0620
@@ -1,2 +1,6 @@
# router variables
exim -odi a
+Subject: foo
+
+body
+****