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-rw-r--r--dirmngr/ks-engine-finger.c127
1 files changed, 127 insertions, 0 deletions
diff --git a/dirmngr/ks-engine-finger.c b/dirmngr/ks-engine-finger.c
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+++ b/dirmngr/ks-engine-finger.c
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+/* ks-engine-finger.c - Finger OpenPGP key access
+ * Copyright (C) 2011 Free Software Foundation, Inc.
+ *
+ * This file is part of GnuPG.
+ *
+ * GnuPG is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GnuPG is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+
+#include "dirmngr.h"
+#include "misc.h"
+#include "../common/userids.h"
+#include "ks-engine.h"
+
+/* Print a help output for the schemata supported by this module. */
+gpg_error_t
+ks_finger_help (ctrl_t ctrl, parsed_uri_t uri)
+{
+ char const data[] =
+ "Handler for FINGER:\n"
+ " finger:<user>@<host>\n"
+ "Supported methods: fetch\n"
+ "Example:\n"
+ " finger:joe@example.org\n";
+ gpg_error_t err;
+
+ if (!uri)
+ err = ks_print_help (ctrl, " finger");
+ else if (!strcmp (uri->scheme, "finger"))
+ err = ks_print_help (ctrl, data);
+ else
+ err = 0;
+
+ return err;
+}
+
+
+/* Get the key from URI which is expected to specify a finger scheme.
+ On success R_FP has an open stream to read the data. */
+gpg_error_t
+ks_finger_fetch (ctrl_t ctrl, parsed_uri_t uri, estream_t *r_fp)
+{
+ gpg_error_t err;
+ estream_t fp;
+ char *server;
+ char *name;
+ http_t http;
+
+ (void)ctrl;
+ *r_fp = NULL;
+
+ if (strcmp (uri->scheme, "finger") || !uri->opaque || !uri->path)
+ return gpg_error (GPG_ERR_INV_ARG);
+
+ name = xtrystrdup (uri->path);
+ if (!name)
+ return gpg_error_from_syserror ();
+
+ server = strchr (name, '@');
+ if (!server)
+ {
+ err = gpg_error (GPG_ERR_INV_URI);
+ xfree (name);
+ return err;
+ }
+ *server++ = 0;
+
+ err = http_raw_connect (&http, server, 79,
+ ((dirmngr_use_tor ()? HTTP_FLAG_FORCE_TOR : 0)
+ | (opt.disable_ipv4? HTTP_FLAG_IGNORE_IPv4 : 0)
+ | (opt.disable_ipv6? HTTP_FLAG_IGNORE_IPv6 : 0)),
+ NULL, ctrl->timeout);
+ if (err)
+ {
+ xfree (name);
+ return err;
+ }
+
+ fp = http_get_write_ptr (http);
+ if (!fp)
+ {
+ err = gpg_error (GPG_ERR_INTERNAL);
+ http_close (http, 0);
+ xfree (name);
+ return err;
+ }
+
+ if (es_fputs (name, fp) || es_fputs ("\r\n", fp) || es_fflush (fp))
+ {
+ err = gpg_error_from_syserror ();
+ http_close (http, 0);
+ xfree (name);
+ return err;
+ }
+ xfree (name);
+ es_fclose (fp);
+
+ fp = http_get_read_ptr (http);
+ if (!fp)
+ {
+ err = gpg_error (GPG_ERR_INTERNAL);
+ http_close (http, 0);
+ return err;
+ }
+
+ http_close (http, 1 /* Keep read ptr. */);
+
+ *r_fp = fp;
+ return 0;
+}