+/*
+ * This code is Copyright (c) 2014, by the authors of nmh. See the
+ * COPYRIGHT file in the root directory of the nmh distribution for
+ * complete copyright information.
+ */
+
+#include <h/mh.h>
+
+#ifdef OAUTH_SUPPORT
+
+#include <sys/stat.h>
+
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <strings.h>
+#include <unistd.h>
+
+#include <h/oauth.h>
+#include <h/utils.h>
+
+static const struct mh_oauth_service_info SERVICES[] = {
+ /* https://developers.google.com/accounts/docs/OAuth2InstalledApp */
+ {
+ /* name */ "gmail",
+ /* display_name */ "Gmail",
+
+ /* client_id */ "91584523849-8lv9kgp1rvp8ahta6fa4b125tn2polcg.apps.googleusercontent.com",
+ /* client_secret */ "Ua8sX34xyv7hVrKM-U70dKI6",
+
+ /* auth_endpoint */ "https://accounts.google.com/o/oauth2/auth",
+ /* redirect_uri */ "urn:ietf:wg:oauth:2.0:oob",
+ /* token_endpoint */ "https://accounts.google.com/o/oauth2/token",
+ /* scope */ "https://mail.google.com/"
+ }
+};
+
+/* Copy service info so we don't have to free it only sometimes. */
+static void
+copy_svc(mh_oauth_service_info *to, const mh_oauth_service_info *from)
+{
+ to->display_name = from->display_name;
+#define copy(_field_) to->_field_ = getcpy(from->_field_)
+ copy(name);
+ copy(scope);
+ copy(client_id);
+ copy(client_secret);
+ copy(auth_endpoint);
+ copy(token_endpoint);
+ copy(redirect_uri);
+#undef copy
+}
+
+/* Return profile component node name for a service parameter. */
+char *
+mh_oauth_node_name_for_svc(const char *base_name, const char *svc)
+{
+ char *result = mh_xmalloc(sizeof "oauth-" - 1
+ + strlen(svc)
+ + 1 /* '-' */
+ + strlen(base_name)
+ + 1 /* '\0' */);
+ sprintf(result, "oauth-%s-%s", svc, base_name);
+ /* TODO: s/_/-/g ? */
+ return result;
+}
+
+/* Update one service_info field if overridden in profile. */
+static void
+update_svc_field(char **field, const char *base_name, const char *svc)
+{
+ char *name = mh_oauth_node_name_for_svc(base_name, svc);
+ const char *value = context_find(name);
+ if (value != NULL) {
+ free(*field);
+ *field = getcpy(value);
+ }
+ free(name);
+}
+
+/* Update all service_info fields that are overridden in profile. */
+static boolean
+update_svc(mh_oauth_service_info *svc, const char *svc_name, char *errbuf,
+ size_t errbuflen)
+{
+#define update(name) \
+ update_svc_field(&svc->name, #name, svc_name); \
+ if (svc->name == NULL) { \
+ snprintf(errbuf, errbuflen, "%s", #name " is missing"); \
+ errbuf[errbuflen - 1] = '\0'; \
+ return FALSE; \
+ }
+ update(scope);
+ update(client_id);
+ update(client_secret);
+ update(auth_endpoint);
+ update(token_endpoint);
+ update(redirect_uri);
+#undef update
+
+ if (svc->name == NULL) {
+ svc->name = getcpy(svc_name);
+ }
+
+ if (svc->display_name == NULL) {
+ svc->display_name = svc->name;
+ }
+
+ return TRUE;
+}
+
+boolean
+mh_oauth_get_service_info(const char *svc_name, mh_oauth_service_info *svcinfo,
+ char *errbuf, size_t errbuflen)
+{
+ int i;
+
+ svcinfo->name = svcinfo->display_name = NULL;
+ svcinfo->scope = svcinfo->client_id = NULL;
+ svcinfo->client_secret = svcinfo->auth_endpoint = NULL;
+ svcinfo->token_endpoint = svcinfo->redirect_uri = NULL;
+
+ for (i = 0; i < (int) (sizeof SERVICES / sizeof SERVICES[0]); i++) {
+ if (strcmp(SERVICES[i].name, svc_name) == 0) {
+ copy_svc(svcinfo, &SERVICES[i]);
+ break;
+ }
+ }
+
+ if (!update_svc(svcinfo, svc_name, errbuf, errbuflen)) {
+ return FALSE;
+ }
+
+ return TRUE;
+}
+#endif
projects / nmh / commitdiff