* more details.
*
* You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc., 51
- * Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * this program. If not, see <https://www.gnu.org/licenses/>.
*/
+#include <inttypes.h>
+#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
-#include <unistd.h>
#include <curl/curl.h>
#include "armor.h"
#include "parsekey.h"
#include "version.h"
-static CURL *curl = NULL;
+struct onak_hkp_dbctx {
+ struct onak_db_config *config; /* Our DB config info */
+ CURL *curl;
+ char hkpbase[512];
+};
-/**
- * initdb - Initialize the key database.
- *
- * We initialize CURL here.
- */
-static void hkp_initdb(bool readonly)
+static int hkp_parse_url(struct onak_hkp_dbctx *privctx, const char *url)
{
- curl_global_init(CURL_GLOBAL_DEFAULT);
- curl = curl_easy_init();
- if (curl == NULL) {
- logthing(LOGTHING_CRITICAL, "Could not initialize CURL.");
- exit(EXIT_FAILURE);
+ char proto[6], host[256];
+ unsigned int port;
+ int matched;
+ int ret = 1;
+
+ proto[0] = host[0] = 0;
+ port = 0;
+
+ matched = sscanf(url, "%5[a-z]://%256[a-zA-Z0-9.-]:%u", proto, host,
+ &port);
+ if (matched < 2) {
+ proto[0] = 0;
+ sscanf(url, "%256[a-zA-Z0-9.-]:%u", host, &port);
}
- curl_easy_setopt(curl, CURLOPT_USERAGENT, "onak/" ONAK_VERSION);
-}
-/**
- * cleanupdb - De-initialize the key database.
- *
- * We cleanup CURL here.
- */
-static void hkp_cleanupdb(void)
-{
- if (curl) {
- curl_easy_cleanup(curl);
- curl = NULL;
+ if (host[0] == 0) {
+ logthing(LOGTHING_CRITICAL, "Couldn't parse HKP host: %s",
+ url);
+ ret = 0;
+ goto out;
}
- curl_global_cleanup();
+
+ if (proto[0] == 0 || !strcmp(proto, "hkp")) {
+ if (port == 0) {
+ port = 11371;
+ }
+ snprintf(privctx->hkpbase, sizeof(privctx->hkpbase),
+ "http://%s:%u/pks", host, port);
+ } else if (!strcmp(proto, "hkps")) {
+ if (port == 0) {
+ port = 11372;
+ }
+ snprintf(privctx->hkpbase, sizeof(privctx->hkpbase),
+ "https://%s:%u/pks", host, port);
+ } else if (strcmp(proto, "http") && strcmp(proto, "https")) {
+ logthing(LOGTHING_CRITICAL, "Unknown HKP protocol: %s",
+ proto);
+ ret = 0;
+ goto out;
+ } else if (port == 0) {
+ snprintf(privctx->hkpbase, sizeof(privctx->hkpbase),
+ "%s://%s/pks", proto, host);
+ } else {
+ snprintf(privctx->hkpbase, sizeof(privctx->hkpbase),
+ "%s://%s:%u/pks", proto, host, port);
+ }
+
+out:
+ return ret;
}
/**
return (nmemb * size);
}
-/**
- * fetch_key - Given a keyid fetch the key from storage.
- * @keyid: The keyid to fetch.
- * @publickey: A pointer to a structure to return the key in.
- * @intrans: If we're already in a transaction.
- *
- * We use the hex representation of the keyid as the filename to fetch the
- * key from. The key is stored in the file as a binary OpenPGP stream of
- * packets, so we can just use read_openpgp_stream() to read the packets
- * in and then parse_keys() to parse the packets into a publickey
- * structure.
- */
-static int hkp_fetch_key(uint64_t keyid, struct openpgp_publickey **publickey,
+static int hkp_fetch_key_url(struct onak_dbctx *dbctx,
+ char *url,
+ struct openpgp_publickey **publickey,
bool intrans)
{
+ struct onak_hkp_dbctx *privctx = (struct onak_hkp_dbctx *) dbctx->priv;
struct openpgp_packet_list *packets = NULL;
- char keyurl[1024];
CURLcode res;
struct buffer_ctx buf;
+ int count = 0;
buf.offset = 0;
buf.size = 8192;
buf.buffer = malloc(8192);
- snprintf(keyurl, sizeof(keyurl),
- "http://%s:11371/pks/lookup?op=get&search=0x%08" PRIX64,
- config.db_dir, keyid);
-
- curl_easy_setopt(curl, CURLOPT_URL, keyurl);
- curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION,
+ curl_easy_setopt(privctx->curl, CURLOPT_URL, url);
+ curl_easy_setopt(privctx->curl, CURLOPT_WRITEFUNCTION,
hkp_curl_recv_data);
- curl_easy_setopt(curl, CURLOPT_WRITEDATA, &buf);
- res = curl_easy_perform(curl);
+ curl_easy_setopt(privctx->curl, CURLOPT_WRITEDATA, &buf);
+ res = curl_easy_perform(privctx->curl);
if (res == 0) {
buf.offset = 0;
dearmor_openpgp_stream(buffer_fetchchar, &buf, &packets);
- parse_keys(packets, publickey);
+ count = parse_keys(packets, publickey);
free_packet_list(packets);
packets = NULL;
} else {
buf.offset = buf.size = 0;
buf.buffer = NULL;
- return (res == 0) ? 1 : 0;
+ return count;
+}
+
+/**
+ * hkp_fetch_key_id - Given a keyid fetch the key from HKP server.
+ */
+static int hkp_fetch_key_id(struct onak_dbctx *dbctx,
+ uint64_t keyid,
+ struct openpgp_publickey **publickey,
+ bool intrans)
+{
+ struct onak_hkp_dbctx *privctx = (struct onak_hkp_dbctx *) dbctx->priv;
+ char keyurl[1024];
+
+ snprintf(keyurl, sizeof(keyurl),
+ "%s/lookup?op=get&search=0x%08" PRIX64,
+ privctx->hkpbase, keyid);
+
+ return (hkp_fetch_key_url(dbctx, keyurl, publickey, intrans));
+}
+
+/**
+ * hkp_fetch_key_fp - Given a fingerprint fetch the key from HKP server.
+ */
+static int hkp_fetch_key_fp(struct onak_dbctx *dbctx,
+ struct openpgp_fingerprint *fingerprint,
+ struct openpgp_publickey **publickey,
+ bool intrans)
+{
+ struct onak_hkp_dbctx *privctx = (struct onak_hkp_dbctx *) dbctx->priv;
+ char keyurl[1024];
+ int i, ofs;
+
+ if (fingerprint->length > MAX_FINGERPRINT_LEN) {
+ return 0;
+ }
+
+ ofs = snprintf(keyurl, sizeof(keyurl),
+ "%s/lookup?op=get&search=0x", privctx->hkpbase);
+
+ if ((ofs + fingerprint->length * 2 + 1)> sizeof(keyurl)) {
+ return 0;
+ }
+
+ for (i = 0; i < fingerprint->length; i++) {
+ ofs += sprintf(&keyurl[ofs], "%02X", fingerprint->fp[i]);
+ }
+
+ return (hkp_fetch_key_url(dbctx, keyurl, publickey, intrans));
}
/**
*
* TODO: Write for flat file access. Some sort of grep?
*/
-static int hkp_fetch_key_text(const char *search,
+static int hkp_fetch_key_text(struct onak_dbctx *dbctx,
+ const char *search,
struct openpgp_publickey **publickey)
{
- struct openpgp_packet_list *packets = NULL;
+ struct onak_hkp_dbctx *privctx = (struct onak_hkp_dbctx *) dbctx->priv;
char keyurl[1024];
- CURLcode res;
- struct buffer_ctx buf;
- int count = 0;
-
- buf.offset = 0;
- buf.size = 8192;
- buf.buffer = malloc(8192);
snprintf(keyurl, sizeof(keyurl),
- "http://%s:11371/pks/lookup?op=get&search=%s",
- config.db_dir, search);
+ "%s/lookup?op=get&search=%s",
+ privctx->hkpbase, search);
- curl_easy_setopt(curl, CURLOPT_URL, keyurl);
- curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION,
- hkp_curl_recv_data);
- curl_easy_setopt(curl, CURLOPT_WRITEDATA, &buf);
- res = curl_easy_perform(curl);
-
- if (res == 0) {
- buf.offset = 0;
- dearmor_openpgp_stream(buffer_fetchchar, &buf, &packets);
- count = parse_keys(packets, publickey);
- free_packet_list(packets);
- packets = NULL;
- } else {
- logthing(LOGTHING_ERROR, "Couldn't find key: %s (%d)",
- curl_easy_strerror(res), res);
- }
-
- free(buf.buffer);
- buf.offset = buf.size = 0;
- buf.buffer = NULL;
-
- return count;
+ return (hkp_fetch_key_url(dbctx, keyurl, publickey, false));
}
/**
* @update: If true the key exists and should be updated.
*
*/
-static int hkp_store_key(struct openpgp_publickey *publickey, bool intrans,
+static int hkp_store_key(struct onak_dbctx *dbctx,
+ struct openpgp_publickey *publickey, bool intrans,
bool update)
{
+ struct onak_hkp_dbctx *privctx = (struct onak_hkp_dbctx *) dbctx->priv;
struct openpgp_packet_list *packets = NULL;
struct openpgp_packet_list *list_end = NULL;
char keyurl[1024];
flatten_publickey(publickey, &packets, &list_end);
armor_openpgp_stream(buffer_putchar, &buf, packets);
- addform = curl_easy_escape(curl, buf.buffer, buf.offset);
+ addform = curl_easy_escape(privctx->curl, buf.buffer, buf.offset);
addform[7] = '=';
- snprintf(keyurl, sizeof(keyurl),
- "http://%s:11371/pks/add",
- config.db_dir);
+ snprintf(keyurl, sizeof(keyurl), "%s/add", privctx->hkpbase);
- curl_easy_setopt(curl, CURLOPT_URL, keyurl);
- curl_easy_setopt(curl, CURLOPT_POSTFIELDS, addform);
- curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION,
+ curl_easy_setopt(privctx->curl, CURLOPT_URL, keyurl);
+ curl_easy_setopt(privctx->curl, CURLOPT_POSTFIELDS, addform);
+ curl_easy_setopt(privctx->curl, CURLOPT_WRITEFUNCTION,
hkp_curl_recv_data);
buf.offset = 0;
- curl_easy_setopt(curl, CURLOPT_WRITEDATA, &buf);
- res = curl_easy_perform(curl);
+ curl_easy_setopt(privctx->curl, CURLOPT_WRITEDATA, &buf);
+ res = curl_easy_perform(privctx->curl);
if (res != 0) {
logthing(LOGTHING_ERROR, "Couldn't send key: %s (%d)",
*
* No op for HKP.
*/
-static int hkp_delete_key(uint64_t keyid, bool intrans)
+static int hkp_delete_key(struct onak_dbctx *dbctx,
+ uint64_t keyid, bool intrans)
{
return -1;
}
*
* Not applicable for HKP backend.
*/
-static int hkp_iterate_keys(void (*iterfunc)(void *ctx,
- struct openpgp_publickey *key), void *ctx)
+static int hkp_iterate_keys(struct onak_dbctx *dbctx,
+ void (*iterfunc)(void *ctx, struct openpgp_publickey *key),
+ void *ctx)
{
return 0;
}
*
* This is just a no-op for HKP access.
*/
-static bool hkp_starttrans(void)
+static bool hkp_starttrans(struct onak_dbctx *dbctx)
{
return true;
}
*
* This is just a no-op for HKP access.
*/
-static void hkp_endtrans(void)
+static void hkp_endtrans(struct onak_dbctx *dbctx)
{
return;
}
#define NEED_UPDATEKEYS 1
#include "keydb.c"
-struct dbfuncs keydb_hkp_funcs = {
- .initdb = hkp_initdb,
- .cleanupdb = hkp_cleanupdb,
- .starttrans = hkp_starttrans,
- .endtrans = hkp_endtrans,
- .fetch_key = hkp_fetch_key,
- .fetch_key_text = hkp_fetch_key_text,
- .store_key = hkp_store_key,
- .update_keys = generic_update_keys,
- .delete_key = hkp_delete_key,
- .getkeysigs = generic_getkeysigs,
- .cached_getkeysigs = generic_cached_getkeysigs,
- .keyid2uid = generic_keyid2uid,
- .getfullkeyid = generic_getfullkeyid,
- .iterate_keys = hkp_iterate_keys,
-};
+/**
+ * cleanupdb - De-initialize the key database.
+ *
+ * We cleanup CURL here.
+ */
+static void hkp_cleanupdb(struct onak_dbctx *dbctx)
+{
+ struct onak_hkp_dbctx *privctx = (struct onak_hkp_dbctx *) dbctx->priv;
+
+ if (privctx->curl) {
+ curl_easy_cleanup(privctx->curl);
+ privctx->curl = NULL;
+ }
+ curl_global_cleanup();
+ free(privctx);
+ free(dbctx);
+}
+
+/**
+ * initdb - Initialize the key database.
+ *
+ * We initialize CURL here.
+ */
+struct onak_dbctx *keydb_hkp_init(struct onak_db_config *dbcfg, bool readonly)
+{
+ struct onak_dbctx *dbctx;
+ struct onak_hkp_dbctx *privctx;
+ curl_version_info_data *curl_info;
+
+ dbctx = malloc(sizeof(struct onak_dbctx));
+ if (dbctx == NULL) {
+ return NULL;
+ }
+
+ dbctx->config = dbcfg;
+ dbctx->priv = privctx = malloc(sizeof(*privctx));
+ dbctx->cleanupdb = hkp_cleanupdb;
+ dbctx->starttrans = hkp_starttrans;
+ dbctx->endtrans = hkp_endtrans;
+ dbctx->fetch_key_id = hkp_fetch_key_id;
+ dbctx->fetch_key_fp = hkp_fetch_key_fp;
+ dbctx->fetch_key_text = hkp_fetch_key_text;
+ dbctx->store_key = hkp_store_key;
+ dbctx->update_keys = generic_update_keys;
+ dbctx->delete_key = hkp_delete_key;
+ dbctx->getkeysigs = generic_getkeysigs;
+ dbctx->cached_getkeysigs = generic_cached_getkeysigs;
+ dbctx->keyid2uid = generic_keyid2uid;
+ dbctx->getfullkeyid = generic_getfullkeyid;
+ dbctx->iterate_keys = hkp_iterate_keys;
+
+ if (!hkp_parse_url(privctx, dbcfg->location)) {
+ exit(EXIT_FAILURE);
+ }
+ logthing(LOGTHING_INFO, "Using %s as HKP forwarding URL.",
+ privctx->hkpbase);
+ curl_global_init(CURL_GLOBAL_DEFAULT);
+ privctx->curl = curl_easy_init();
+ if (privctx->curl == NULL) {
+ logthing(LOGTHING_CRITICAL, "Could not initialize CURL.");
+ hkp_cleanupdb(dbctx);
+ dbctx = NULL;
+ exit(EXIT_FAILURE);
+ }
+ curl_easy_setopt(privctx->curl, CURLOPT_USERAGENT,
+ "onak/" ONAK_VERSION);
+
+ if (strncmp(privctx->hkpbase, "https://", 8) == 0) {
+ curl_info = curl_version_info(CURLVERSION_NOW);
+ if (! (curl_info->features & CURL_VERSION_SSL)) {
+ logthing(LOGTHING_CRITICAL,
+ "CURL lacks SSL support; cannot use HKP url: %s",
+ privctx->hkpbase);
+ hkp_cleanupdb(dbctx);
+ dbctx = NULL;
+ exit(EXIT_FAILURE);
+ }
+ }
+
+ return dbctx;
+}
projects / onak.git / blobdiff