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/* 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 <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <sysexits.h>
#include <unistd.h>
#include "server.h"
sqlite3 *db;
struct Statements stmt;
static void prepare(sqlite3_stmt **stmt, const char *query) {
int error = sqlite3_prepare_v3(
db, query, -1, SQLITE_PREPARE_PERSISTENT, stmt, NULL
);
if (error) errx(EX_SOFTWARE, "%s: %s", sqlite3_errmsg(db), query);
}
const char *Pages[PagesLen] = {
#define X(page, path) [page] = path,
ENUM_PAGES
#undef X
};
const struct kvalid Keys[KeysLen] = {
#define X(key, name, valid) [key] = { valid, name },
ENUM_KEYS
#undef X
};
bool pagePublic;
int pageLimit = 100;
int pageRecent = 500;
static const char CSS[] = {
#include "default.css.h"
};
static const char *Cache = "public, max-age=86400, immutable";
static enum kcgi_err request(struct kreq *req) {
if (req->method != KMETHOD_HEAD && req->method != KMETHOD_GET) {
return httpFail(req, KHTTP_405);
}
switch (req->page) {
case Networks: return pageNetworks(req);
case Contexts: return pageContexts(req);
case Events: return pageEvents(req);
case Search: return pageSearch(req);
case Stylesheet: {
if (req->mime != KMIME_TEXT_CSS) return httpFail(req, KHTTP_404);
return httpHead(req, KHTTP_200, KMIME_TEXT_CSS)
|| khttp_head(req, kresps[KRESP_CACHE_CONTROL], "%s", Cache)
|| khttp_body(req)
|| khttp_write(req, CSS, sizeof(CSS));
}
default: return httpFail(req, KHTTP_404);
}
}
int main(int argc, char *argv[]) {
bool test = false;
for (int opt; 0 < (opt = getopt(argc, argv, "cl:pr:s:"));) {
switch (opt) {
break; case 'c': test = true;
break; case 'l': pageLimit = strtol(optarg, NULL, 10);
break; case 'p': pagePublic = true;
break; case 'r': pageRecent = strtol(optarg, NULL, 10);
break; case 's': htmlStylesheet = optarg;
break; default: return EX_USAGE;
}
}
if (optind == argc) errx(EX_USAGE, "database path required");
int error = sqlite3_open_v2(argv[optind], &db, SQLITE_OPEN_READONLY, NULL);
if (error) errx(EX_NOINPUT, "%s: %s", argv[optind], sqlite3_errmsg(db));
atexit(dbClose);
sqlite3_stmt *check;
error = sqlite3_prepare_v2(
db, SQL(PRAGMA user_version;), -1, &check, NULL
);
if (error) errx(EX_SOFTWARE, "%s", sqlite3_errmsg(db));
error = sqlite3_step(check);
if (error != SQLITE_ROW) errx(EX_SOFTWARE, "%s", sqlite3_errmsg(db));
int version = sqlite3_column_int(check, 0);
if (version < DatabaseVersionMin || version > DatabaseVersionMax) {
errx(EX_DATAERR, "unsupported database version %d", version);
}
sqlite3_finalize(check);
prepare(&stmt.networks, NetworksQuery);
prepare(&stmt.contexts, ContextsQuery);
prepare(&stmt.eventsAfter, EventsAfterQuery);
prepare(&stmt.eventsBefore, EventsBeforeQuery);
prepare(&stmt.search, SearchQuery);
if (test) return EX_OK;
if (khttp_fcgi_test()) {
struct kfcgi *fcgi;
enum kcgi_err error = khttp_fcgi_init(
&fcgi, Keys, KeysLen, Pages, PagesLen, Networks
);
if (error) errx(EX_CONFIG, "khttp_fcgi_init: %s", kcgi_strerror(error));
for (
struct kreq req;
KCGI_OK == (error = khttp_fcgi_parse(fcgi, &req));
khttp_free(&req)
) {
error = request(&req);
if (error && error != KCGI_HUP) break;
}
if (error != KCGI_EXIT) {
errx(EX_PROTOCOL, "khttp_fcgi_parse: %s", kcgi_strerror(error));
}
khttp_fcgi_free(fcgi);
} else {
struct kreq req;
enum kcgi_err error = khttp_parse(
&req, Keys, KeysLen, Pages, PagesLen, Networks
);
if (error) errx(EX_PROTOCOL, "khttp_parse: %s", kcgi_strerror(error));
error = request(&req);
if (error) errx(EX_PROTOCOL, "%s", kcgi_strerror(error));
khttp_free(&req);
}
}
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