Merge branch 'ds/push-squelch-ambig-warning'
[gitweb.git] / gpg-interface.c
index efe2c0d3863c7b4118d08c4152dbc6e1d5dcc09f..8ed274533f87198a74a3660809c25932fa43124a 100644 (file)
@@ -73,31 +73,43 @@ void signature_check_clear(struct signature_check *sigc)
        FREE_AND_NULL(sigc->gpg_status);
        FREE_AND_NULL(sigc->signer);
        FREE_AND_NULL(sigc->key);
+       FREE_AND_NULL(sigc->fingerprint);
+       FREE_AND_NULL(sigc->primary_key_fingerprint);
 }
 
 /* An exclusive status -- only one of them can appear in output */
 #define GPG_STATUS_EXCLUSIVE   (1<<0)
+/* The status includes key identifier */
+#define GPG_STATUS_KEYID       (1<<1)
+/* The status includes user identifier */
+#define GPG_STATUS_UID         (1<<2)
+/* The status includes key fingerprints */
+#define GPG_STATUS_FINGERPRINT (1<<3)
+
+/* Short-hand for standard exclusive *SIG status with keyid & UID */
+#define GPG_STATUS_STDSIG      (GPG_STATUS_EXCLUSIVE|GPG_STATUS_KEYID|GPG_STATUS_UID)
 
 static struct {
        char result;
        const char *check;
        unsigned int flags;
 } sigcheck_gpg_status[] = {
-       { 'G', "GOODSIG ", GPG_STATUS_EXCLUSIVE },
-       { 'B', "BADSIG ", GPG_STATUS_EXCLUSIVE },
+       { 'G', "GOODSIG ", GPG_STATUS_STDSIG },
+       { 'B', "BADSIG ", GPG_STATUS_STDSIG },
        { 'U', "TRUST_NEVER", 0 },
        { 'U', "TRUST_UNDEFINED", 0 },
-       { 'E', "ERRSIG ", GPG_STATUS_EXCLUSIVE },
-       { 'X', "EXPSIG ", GPG_STATUS_EXCLUSIVE },
-       { 'Y', "EXPKEYSIG ", GPG_STATUS_EXCLUSIVE },
-       { 'R', "REVKEYSIG ", GPG_STATUS_EXCLUSIVE },
+       { 'E', "ERRSIG ", GPG_STATUS_EXCLUSIVE|GPG_STATUS_KEYID },
+       { 'X', "EXPSIG ", GPG_STATUS_STDSIG },
+       { 'Y', "EXPKEYSIG ", GPG_STATUS_STDSIG },
+       { 'R', "REVKEYSIG ", GPG_STATUS_STDSIG },
+       { 0, "VALIDSIG ", GPG_STATUS_FINGERPRINT },
 };
 
 static void parse_gpg_output(struct signature_check *sigc)
 {
        const char *buf = sigc->gpg_status;
        const char *line, *next;
-       int i;
+       int i, j;
        int seen_exclusive_status = 0;
 
        /* Iterate over all lines */
@@ -112,24 +124,43 @@ static void parse_gpg_output(struct signature_check *sigc)
                for (i = 0; i < ARRAY_SIZE(sigcheck_gpg_status); i++) {
                        if (skip_prefix(line, sigcheck_gpg_status[i].check, &line)) {
                                if (sigcheck_gpg_status[i].flags & GPG_STATUS_EXCLUSIVE) {
-                                       if (++seen_exclusive_status > 1)
+                                       if (seen_exclusive_status++)
                                                goto found_duplicate_status;
                                }
 
-                               sigc->result = sigcheck_gpg_status[i].result;
-                               /* The trust messages are not followed by key/signer information */
-                               if (sigc->result != 'U') {
+                               if (sigcheck_gpg_status[i].result)
+                                       sigc->result = sigcheck_gpg_status[i].result;
+                               /* Do we have key information? */
+                               if (sigcheck_gpg_status[i].flags & GPG_STATUS_KEYID) {
                                        next = strchrnul(line, ' ');
                                        free(sigc->key);
                                        sigc->key = xmemdupz(line, next - line);
-                                       /* The ERRSIG message is not followed by signer information */
-                                       if (*next && sigc->result != 'E') {
+                                       /* Do we have signer information? */
+                                       if (*next && (sigcheck_gpg_status[i].flags & GPG_STATUS_UID)) {
                                                line = next + 1;
                                                next = strchrnul(line, '\n');
                                                free(sigc->signer);
                                                sigc->signer = xmemdupz(line, next - line);
                                        }
                                }
+                               /* Do we have fingerprint? */
+                               if (sigcheck_gpg_status[i].flags & GPG_STATUS_FINGERPRINT) {
+                                       next = strchrnul(line, ' ');
+                                       free(sigc->fingerprint);
+                                       sigc->fingerprint = xmemdupz(line, next - line);
+
+                                       /* Skip interim fields */
+                                       for (j = 9; j > 0; j--) {
+                                               if (!*next)
+                                                       break;
+                                               line = next + 1;
+                                               next = strchrnul(line, ' ');
+                                       }
+
+                                       next = strchrnul(line, '\n');
+                                       free(sigc->primary_key_fingerprint);
+                                       sigc->primary_key_fingerprint = xmemdupz(line, next - line);
+                               }
 
                                break;
                        }
@@ -147,6 +178,8 @@ static void parse_gpg_output(struct signature_check *sigc)
         */
        sigc->result = 'E';
        /* Clear partial data to avoid confusion */
+       FREE_AND_NULL(sigc->primary_key_fingerprint);
+       FREE_AND_NULL(sigc->fingerprint);
        FREE_AND_NULL(sigc->signer);
        FREE_AND_NULL(sigc->key);
 }