1 files changed, 129 insertions, 0 deletions
diff --git a/server.h b/server.h
new file mode 100644
index 0000000..80eb5bb
--- /dev/null
+++ b/server.h
@@ -0,0 +1,129 @@
+/* Copyright (C) 2020  C. McEnroe <june@causal.agency>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <err.h>
+#include <stdarg.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <sys/types.h>
+#include <sysexits.h>
+
+#include <kcgi.h>
+#include <kcgihtml.h>
+#include <sqlite3.h>
+
+#if KCGI_VMAJOR == 0 && KCGI_VMINOR < 12
+#define khttp_urlpart(...) kutil_urlpart(NULL, __VA_ARGS__)
+#endif
+
+#define SQL(...) #__VA_ARGS__
+
+enum { DatabaseVersion = 4 };
+
+extern sqlite3 *db;
+
+extern const char *NetworksQuery;
+extern const char *ContextsQuery;
+extern const char *EventsQuery;
+extern const char *SearchQuery;
+
+extern struct Statements {
+	sqlite3_stmt *networks;
+	sqlite3_stmt *contexts;
+	sqlite3_stmt *events;
+	sqlite3_stmt *search;
+} stmt;
+
+static inline void dbClose(void) {
+	if (stmt.networks) sqlite3_finalize(stmt.networks);
+	if (stmt.contexts) sqlite3_finalize(stmt.contexts);
+	if (stmt.events) sqlite3_finalize(stmt.events);
+	if (stmt.search) sqlite3_finalize(stmt.search);
+	sqlite3_close(db);
+}
+
+static inline int dbParam(sqlite3_stmt *stmt, const char *param) {
+	int index = sqlite3_bind_parameter_index(stmt, param);
+	if (index) return index;
+	errx(EX_SOFTWARE, "no such parameter %s: %s", param, sqlite3_sql(stmt));
+}
+
+static inline void
+dbBindInt(sqlite3_stmt *stmt, const char *param, sqlite3_int64 value) {
+	if (!sqlite3_bind_int64(stmt, dbParam(stmt, param), value)) return;
+	errx(EX_SOFTWARE, "sqlite3_bind_int64: %s", sqlite3_errmsg(db));
+}
+
+static inline void
+dbBindText(sqlite3_stmt *stmt, const char *param, const char *value) {
+	if (!sqlite3_bind_text(stmt, dbParam(stmt, param), value, -1, NULL)) return;
+	errx(EX_SOFTWARE, "sqlite3_bind_text: %s", sqlite3_errmsg(db));
+}
+
+#define ENUM_PAGES \
+	X(Networks, "networks") \
+	X(Contexts, "contexts") \
+	X(Events, "events") \
+	X(Search, "search")
+
+enum {
+#define X(page, path) page,
+	ENUM_PAGES
+#undef X
+	PagesLen,
+};
+
+extern const char *Pages[PagesLen];
+
+#define ENUM_KEYS \
+	X(Network, "network", kvalid_stringne) \
+	X(Context, "context", kvalid_stringne) \
+	X(After, "after", kvalid_stringne) \
+	X(Query, "query", kvalid_stringne)
+
+enum {
+#define X(key, name, valid) key,
+	ENUM_KEYS
+#undef X
+	KeysLen,
+};
+
+extern const struct kvalid Keys[KeysLen];
+
+extern bool pagePublic;
+
+enum kcgi_err pageNetworks(struct kreq *req);
+enum kcgi_err pageContexts(struct kreq *req);
+enum kcgi_err pageEvents(struct kreq *req);
+enum kcgi_err pageSearch(struct kreq *req);
+
+static inline enum kcgi_err
+httpHead(struct kreq *req, enum khttp http, enum kmime mime) {
+	return khttp_head(req, kresps[KRESP_STATUS], "%s", khttps[http])
+		|| khttp_head(req, kresps[KRESP_CONTENT_TYPE], "%s", kmimetypes[mime]);
+}
+
+static inline enum kcgi_err httpFail(struct kreq *req, enum khttp http) {
+	return httpHead(req, http, KMIME_TEXT_PLAIN)
+		|| khttp_body(req)
+		|| khttp_printf(req, "%s\n", khttps[http]);
+}
+
+extern const char *htmlStylesheet;
+enum kcgi_err htmlHead(struct khtmlreq *html, const char *title);
+enum kcgi_err htmlNav(
+	struct khtmlreq *html, const char *network, const char *context
+);