refactor parsing of claims encoding into parse.c

Signed-off-by: Hans Zandbelt <hans.zandbelt@openidc.com>
OpenIDC · Nov 3, 2023 · cab5199 · cab5199
1 parent 28e79bf
commit cab5199
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Showing 3 changed files with 32 additions and 17 deletions.
diff --git a/src/config.c b/src/config.c
@@ -1135,23 +1135,9 @@ static const char* oidc_set_pass_claims_as(cmd_parms *cmd, void *m,
 	oidc_dir_cfg *dir_cfg = (oidc_dir_cfg*) m;
 	const char *rv = oidc_parse_set_claims_as(cmd->pool, arg1,
 			&dir_cfg->pass_info_in_headers, &dir_cfg->pass_info_in_env_vars);
-	if (rv == NULL) {
-		if (arg2 != NULL) {
-			if (_oidc_strcmp(arg2, "base64url") == 0) {
-				dir_cfg->pass_info_as = OIDC_PASS_APP_INFO_AS_BASE64URL;
-			} else if (_oidc_strcmp(arg2, "latin1") == 0) {
-				dir_cfg->pass_info_as = OIDC_PASS_APP_INFO_AS_LATIN1;
-			} else if (_oidc_strcmp(arg2, "none") == 0) {
-				dir_cfg->pass_info_as = OIDC_PASS_APP_INFO_AS_NONE;
-			} else {
-				rv =
-						apr_pstrcat(cmd->temp_pool,
-								"unknown encoding option \"", arg2,
-								"\", only \"base64url\", \"latin1\" or \"none\" is supported",
-								NULL);
-			}
-		}
-	}
+	if ((rv == NULL) && (arg2 != NULL))
+		rv = oidc_parse_pass_claims_as_encoding(cmd->pool, arg2,
+				&dir_cfg->pass_info_as);
 	return OIDC_CONFIG_DIR_RV(cmd, rv);
 }
 

diff --git a/src/parse.c b/src/parse.c
@@ -1008,6 +1008,33 @@ const char *oidc_parse_set_claims_as(apr_pool_t *pool, const char *arg,
 	return NULL;
 }
 
+#define OIDC_PASS_CLAIMS_ENCODING_NONE_STR        "none"
+#define OIDC_PASS_CLAIMS_ENCODING_LATIN1_STR      "latin1"
+#define OIDC_PASS_CLAIMS_ENCODING_BASE64URL_STR   "base64url"
+
+const char* oidc_parse_pass_claims_as_encoding(apr_pool_t *pool,
+		const char *arg, int *pass_as) {
+	static char *options[] = {
+			OIDC_PASS_CLAIMS_ENCODING_NONE_STR,
+			OIDC_PASS_CLAIMS_ENCODING_LATIN1_STR,
+			OIDC_PASS_CLAIMS_ENCODING_BASE64URL_STR,
+			NULL };
+	const char *rv = oidc_valid_string_option(pool, arg, options);
+	if (rv != NULL)
+		return rv;
+
+	if (_oidc_strcmp(arg, OIDC_PASS_CLAIMS_ENCODING_NONE_STR) == 0) {
+		*pass_as = OIDC_PASS_APP_INFO_AS_BASE64URL;
+	} else if (_oidc_strcmp(arg, OIDC_PASS_CLAIMS_ENCODING_LATIN1_STR) == 0) {
+		*pass_as = OIDC_PASS_APP_INFO_AS_LATIN1;
+	} else if (_oidc_strcmp(arg, OIDC_PASS_CLAIMS_ENCODING_BASE64URL_STR)
+			== 0) {
+		*pass_as = OIDC_PASS_APP_INFO_AS_BASE64URL;
+	}
+
+	return NULL;
+}
+
 #define OIDC_UNAUTH_ACTION_AUTH_STR "auth"
 #define OIDC_UNAUTH_ACTION_PASS_STR "pass"
 #define OIDC_UNAUTH_ACTION_401_STR  "401"

diff --git a/src/parse.h b/src/parse.h
@@ -129,6 +129,8 @@ const char* oidc_parse_claim_required(apr_pool_t *pool, const char *arg,
 		int *is_required);
 const char* oidc_parse_set_claims_as(apr_pool_t *pool, const char *arg,
 		int *in_headers, int *in_env_vars);
+const char* oidc_parse_pass_claims_as_encoding(apr_pool_t *pool,
+		const char *arg, int *pass_as);
 const char* oidc_parse_unauth_action(apr_pool_t *pool, const char *arg,
 		int *action);
 const char* oidc_parse_unautz_action(apr_pool_t *pool, const char *arg,