X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/c5db348c5e29e93e51389fa0079f829967c5da82..HEAD:/src/src/spf.c

diff --git a/src/src/spf.c b/src/src/spf.c
deleted file mode 100644
index c4c5ef761..000000000
--- a/src/src/spf.c
+++ /dev/null
@@ -1,142 +0,0 @@
-/*************************************************
-*     Exim - an Internet mail transport agent    *
-*************************************************/
-
-/* Experimental SPF support.
-   Copyright (c) Tom Kistner <tom@duncanthrax.net> 2004 - 2014
-   License: GPL
-   Copyright (c) The Exim Maintainers 2017
-*/
-
-/* Code for calling spf checks via libspf-alt. Called from acl.c. */
-
-#include "exim.h"
-#ifdef EXPERIMENTAL_SPF
-
-/* must be kept in numeric order */
-static spf_result_id spf_result_id_list[] = {
-  /* name		value */
-  { US"invalid",	0},
-  { US"neutral",	1 },
-  { US"pass",		2 },
-  { US"fail",		3 },
-  { US"softfail",	4 },
-  { US"none",		5 },
-  { US"err_temp",	6 },  /* Deprecated Apr 2014 */
-  { US"err_perm",	7 },  /* Deprecated Apr 2014 */
-  { US"temperror",	6 }, /* RFC 4408 defined */
-  { US"permerror",	7 }  /* RFC 4408 defined */
-};
-
-SPF_server_t    *spf_server = NULL;
-SPF_request_t   *spf_request = NULL;
-SPF_response_t  *spf_response = NULL;
-SPF_response_t  *spf_response_2mx = NULL;
-
-/* spf_init sets up a context that can be re-used for several
-   messages on the same SMTP connection (that come from the
-   same host with the same HELO string) */
-
-int spf_init(uschar *spf_helo_domain, uschar *spf_remote_addr) {
-
-  spf_server = SPF_server_new(SPF_DNS_CACHE, 0);
-
-  if ( spf_server == NULL ) {
-    debug_printf("spf: SPF_server_new() failed.\n");
-    return 0;
-  }
-
-  if (SPF_server_set_rec_dom(spf_server, CS primary_hostname)) {
-    debug_printf("spf: SPF_server_set_rec_dom(\"%s\") failed.\n", primary_hostname);
-    spf_server = NULL;
-    return 0;
-  }
-
-  spf_request = SPF_request_new(spf_server);
-
-  if (SPF_request_set_ipv4_str(spf_request, CS spf_remote_addr)
-      && SPF_request_set_ipv6_str(spf_request, CS spf_remote_addr)) {
-    debug_printf("spf: SPF_request_set_ipv4_str() and SPF_request_set_ipv6_str() failed [%s]\n", spf_remote_addr);
-    spf_server = NULL;
-    spf_request = NULL;
-    return 0;
-  }
-
-  if (SPF_request_set_helo_dom(spf_request, CS spf_helo_domain)) {
-    debug_printf("spf: SPF_set_helo_dom(\"%s\") failed.\n", spf_helo_domain);
-    spf_server = NULL;
-    spf_request = NULL;
-    return 0;
-  }
-
-  return 1;
-}
-
-
-/* spf_process adds the envelope sender address to the existing
-   context (if any), retrieves the result, sets up expansion
-   strings and evaluates the condition outcome. */
-
-int spf_process(const uschar **listptr, uschar *spf_envelope_sender, int action) {
-  int sep = 0;
-  const uschar *list = *listptr;
-  uschar *spf_result_id;
-  uschar spf_result_id_buffer[128];
-  int rc = SPF_RESULT_PERMERROR;
-
-  if (!(spf_server && spf_request)) {
-    /* no global context, assume temp error and skip to evaluation */
-    rc = SPF_RESULT_PERMERROR;
-    goto SPF_EVALUATE;
-  };
-
-  if (SPF_request_set_env_from(spf_request, CS spf_envelope_sender)) {
-    /* Invalid sender address. This should be a real rare occurence */
-    rc = SPF_RESULT_PERMERROR;
-    goto SPF_EVALUATE;
-  }
-
-  /* get SPF result */
-  if (action == SPF_PROCESS_FALLBACK)
-    SPF_request_query_fallback(spf_request, &spf_response, CS spf_guess);
-  else
-    SPF_request_query_mailfrom(spf_request, &spf_response);
-
-  /* set up expansion items */
-  spf_header_comment     = US SPF_response_get_header_comment(spf_response);
-  spf_received           = US SPF_response_get_received_spf(spf_response);
-  spf_result             = US SPF_strresult(SPF_response_result(spf_response));
-  spf_smtp_comment       = US SPF_response_get_smtp_comment(spf_response);
-
-  rc = SPF_response_result(spf_response);
-
-  /* We got a result. Now see if we should return OK or FAIL for it */
-  SPF_EVALUATE:
-  debug_printf("SPF result is %s (%d)\n", SPF_strresult(rc), rc);
-
-  if (action == SPF_PROCESS_GUESS && (!strcmp (SPF_strresult(rc), "none")))
-    return spf_process(listptr, spf_envelope_sender, SPF_PROCESS_FALLBACK);
-
-  while ((spf_result_id = string_nextinlist(&list, &sep,
-                                     spf_result_id_buffer,
-                                     sizeof(spf_result_id_buffer))) != NULL) {
-    int negate = 0;
-    int result = 0;
-
-    /* Check for negation */
-    if (spf_result_id[0] == '!') {
-      negate = 1;
-      spf_result_id++;
-    };
-
-    /* Check the result identifier */
-    result = Ustrcmp(spf_result_id, spf_result_id_list[rc].name);
-    if (!negate && result==0) return OK;
-    if (negate && result!=0) return OK;
-  };
-
-  /* no match */
-  return FAIL;
-}
-
-#endif