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wks: Support alternative submission address.

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* tools/gpg-wks.h (policy_flags_s): Add field 'submission_address'.
* tools/wks-util.c (wks_parse_policy): Parse that field.
(wks_free_policy): New.
* tools/gpg-wks-client.c (command_send): Also try to take the
submission-address from the policy file.  Free POLICY.
* tools/gpg-wks-server.c (process_new_key): Free POLICYBUF.
(command_list_domains): Free POLICY.

Signed-off-by: Werner Koch <wk@gnupg.org>
This commit is contained in:
Werner Koch 2018-02-20 09:00:00 +01:00
parent fffefd3c98
commit 1877603761
No known key found for this signature in database
GPG Key ID: E3FDFF218E45B72B
4 changed files with 67 additions and 14 deletions
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48
tools/gpg-wks-client.c
View File

@ -782,27 +782,19 @@ command_send (const char *fingerprint, const char *userid)
err = 0;
}
else
err = wkd_get_submission_address (addrspec, &submission_to);
if (err)
{
log_error (_("error looking up submission address for domain '%s': %s\n"),
domain, gpg_strerror (err));
if (gpg_err_code (err) == GPG_ERR_NO_DATA)
log_error (_("this domain probably doesn't support WKS.\n"));
goto leave;
}
log_info ("submitting request to '%s'\n", submission_to);
/* Get the policy flags. */
if (!fake_submission_addr)
{
/* We first try to get the submission address from the policy
* file (this is the new method). If both are available we
* check that they match and print a warning if not. In the
* latter case we keep on using the one from the
* submission-address file. */
estream_t mbuf;
err = wkd_get_policy_flags (addrspec, &mbuf);
if (err && gpg_err_code (err) != GPG_ERR_NO_DATA)
{
log_error ("error reading policy flags for '%s': %s\n",
submission_to, gpg_strerror (err));
domain, gpg_strerror (err));
goto leave;
}
if (mbuf)
@ -812,8 +804,35 @@ command_send (const char *fingerprint, const char *userid)
if (err)
goto leave;
}
err = wkd_get_submission_address (addrspec, &submission_to);
if (err && !policy.submission_address)
{
log_error (_("error looking up submission address for domain '%s'"
": %s\n"), domain, gpg_strerror (err));
if (gpg_err_code (err) == GPG_ERR_NO_DATA)
log_error (_("this domain probably doesn't support WKS.\n"));
goto leave;
}
if (submission_to && policy.submission_address
&& ascii_strcasecmp (submission_to, policy.submission_address))
log_info ("Warning: different submission addresses (sa=%s, po=%s)\n",
submission_to, policy.submission_address);
if (!submission_to)
{
submission_to = xtrystrdup (policy.submission_address);
if (!submission_to)
{
err = gpg_error_from_syserror ();
goto leave;
}
}
}
log_info ("submitting request to '%s'\n", submission_to);
if (policy.auth_submit)
log_info ("no confirmation required for '%s'\n", addrspec);
@ -1002,6 +1021,7 @@ command_send (const char *fingerprint, const char *userid)
free_uidinfo_list (uidlist);
es_fclose (keyenc);
es_fclose (key);
wks_free_policy (&policy);
xfree (addrspec);
return err;
}

4
tools/gpg-wks-server.c
View File

@ -1135,6 +1135,8 @@ process_new_key (server_ctx_t ctx, estream_t key)
char *fname = NULL;
struct policy_flags_s policybuf;
memset (&policybuf, 0, sizeof policybuf);
/* First figure out the user id from the key. */
xfree (ctx->fpr);
free_uidinfo_list (ctx->mboxes);
@ -1206,6 +1208,7 @@ process_new_key (server_ctx_t ctx, estream_t key)
xfree (nonce);
xfree (fname);
xfree (dname);
wks_free_policy (&policybuf);
return err;
}
@ -1897,6 +1900,7 @@ command_list_domains (void)
if (!memcmp (&empty_policy, &policy, sizeof policy))
log_error ("domain %s: empty policy file\n", domain);
}
wks_free_policy (&policy);
}

2
tools/gpg-wks.h
View File

@ -60,6 +60,7 @@ struct
/* The parsed policy flags. */
struct policy_flags_s
{
char *submission_address;
unsigned int mailbox_only : 1;
unsigned int dane_only : 1;
unsigned int auth_submit : 1;
@ -92,6 +93,7 @@ gpg_error_t wks_filter_uid (estream_t *r_newkey, estream_t key,
gpg_error_t wks_send_mime (mime_maker_t mime);
gpg_error_t wks_parse_policy (policy_flags_t flags, estream_t stream,
int ignore_unknown);
void wks_free_policy (policy_flags_t policy);
/*-- wks-receive.c --*/

27
tools/wks-util.c
View File

@ -443,6 +443,7 @@ gpg_error_t
wks_parse_policy (policy_flags_t flags, estream_t stream, int ignore_unknown)
{
enum tokens {
TOK_SUBMISSION_ADDRESS,
TOK_MAILBOX_ONLY,
TOK_DANE_ONLY,
TOK_AUTH_SUBMIT,
@ -453,6 +454,7 @@ wks_parse_policy (policy_flags_t flags, estream_t stream, int ignore_unknown)
const char *name;
enum tokens token;
} keywords[] = {
{ "submission-address", TOK_SUBMISSION_ADDRESS },
{ "mailbox-only", TOK_MAILBOX_ONLY },
{ "dane-only", TOK_DANE_ONLY },
{ "auth-submit", TOK_AUTH_SUBMIT },
@ -519,6 +521,20 @@ wks_parse_policy (policy_flags_t flags, estream_t stream, int ignore_unknown)
switch (keywords[i].token)
{
case TOK_SUBMISSION_ADDRESS:
if (!value || !*value)
{
err = gpg_error (GPG_ERR_SYNTAX);
goto leave;
}
xfree (flags->submission_address);
flags->submission_address = xtrystrdup (value);
if (!flags->submission_address)
{
err = gpg_error_from_syserror ();
goto leave;
}
break;
case TOK_MAILBOX_ONLY: flags->mailbox_only = 1; break;
case TOK_DANE_ONLY: flags->dane_only = 1; break;
case TOK_AUTH_SUBMIT: flags->auth_submit = 1; break;
@ -553,3 +569,14 @@ wks_parse_policy (policy_flags_t flags, estream_t stream, int ignore_unknown)
return err;
}
void
wks_free_policy (policy_flags_t policy)
{
if (policy)
{
xfree (policy->submission_address);
memset (policy, 0, sizeof *policy);
}
}