2022-04-02 20:23:18 +00:00
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const std = @import("std");
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2022-07-10 22:19:21 +00:00
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const builtin = @import("builtin");
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2022-09-15 01:12:07 +00:00
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const sql = @import("sql");
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2022-07-09 22:07:51 +00:00
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const http = @import("http");
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2022-07-13 04:16:33 +00:00
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const util = @import("util");
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2022-10-08 20:47:54 +00:00
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const api = @import("api");
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2022-10-12 05:48:08 +00:00
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pub const migrations = @import("./migrations.zig"); // TODO
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2022-07-13 07:57:21 +00:00
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const c = @import("./controllers.zig");
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2022-07-10 05:05:01 +00:00
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2022-07-30 06:14:42 +00:00
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pub const Config = struct {
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2022-10-13 09:23:57 +00:00
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worker_threads: usize = 10,
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2022-09-15 01:12:07 +00:00
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db: sql.Config,
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2022-07-30 06:14:42 +00:00
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};
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fn loadConfig(alloc: std.mem.Allocator) !Config {
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var file = try std.fs.cwd().openFile("config.json", .{});
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defer file.close();
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const bytes = try file.reader().readAllAlloc(alloc, 1 << 63);
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defer alloc.free(bytes);
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var ts = std.json.TokenStream.init(bytes);
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return std.json.parse(Config, &ts, .{ .allocator = alloc });
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}
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2022-09-29 21:52:01 +00:00
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const admin_origin_envvar = "CLUSTER_ADMIN_ORIGIN";
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const admin_username_envvar = "CLUSTER_ADMIN_USERNAME";
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const admin_password_envvar = "CLUSTER_ADMIN_PASSWORD";
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2022-10-04 05:41:22 +00:00
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fn runAdminSetup(db: sql.Db, alloc: std.mem.Allocator) !void {
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2022-09-29 21:52:01 +00:00
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const origin = std.os.getenv(admin_origin_envvar) orelse return error.MissingArgument;
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const username = std.os.getenv(admin_username_envvar) orelse return error.MissingArgument;
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const password = std.os.getenv(admin_password_envvar) orelse return error.MissingArgument;
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try api.setupAdmin(db, origin, username, password, alloc);
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}
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2022-10-13 06:19:59 +00:00
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fn prepareDb(pool: *sql.ConnPool, alloc: std.mem.Allocator) !void {
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const db = try pool.acquire();
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defer db.releaseConnection();
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2022-09-29 21:52:01 +00:00
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try migrations.up(db);
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if (!try api.isAdminSetup(db)) {
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std.log.info("Performing first-time admin creation...", .{});
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runAdminSetup(db, alloc) catch |err| switch (err) {
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error.MissingArgument => {
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std.log.err(
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\\First time setup required but arguments not provided.
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\\Please provide the following arguments via environment variable:
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\\- {s}: The origin to serve the cluster admin panel at (ex: https://admin.example.com)
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\\- {s}: The username for the initial cluster operator
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\\- {s}: The password for the initial cluster operator
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,
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.{ admin_origin_envvar, admin_username_envvar, admin_password_envvar },
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);
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std.os.exit(1);
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},
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else => return err,
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};
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}
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}
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2022-10-13 09:23:57 +00:00
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const ConnectionId = u64;
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var next_conn_id = std.atomic.Atomic(ConnectionId).init(0);
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2022-11-18 02:42:23 +00:00
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fn thread_main(src: *api.ApiSource, srv: *http.Server) void {
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2022-10-13 09:23:57 +00:00
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util.seedThreadPrng() catch unreachable;
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var gpa = std.heap.GeneralPurposeAllocator(.{}){};
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2022-11-18 02:42:23 +00:00
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defer _ = gpa.deinit();
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2022-11-27 01:33:46 +00:00
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srv.handleLoop(gpa.allocator(), .{ .api_source = src, .allocator = gpa.allocator() }, c.router);
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2022-10-13 09:23:57 +00:00
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}
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2022-10-04 02:41:59 +00:00
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pub fn main() !void {
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2022-10-08 20:47:54 +00:00
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try util.seedThreadPrng();
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2022-07-10 05:05:01 +00:00
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var gpa = std.heap.GeneralPurposeAllocator(.{}){};
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2022-09-09 04:15:52 +00:00
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var cfg = try loadConfig(gpa.allocator());
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2022-10-13 06:19:59 +00:00
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var pool = try sql.ConnPool.init(cfg.db);
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try prepareDb(&pool, gpa.allocator());
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2022-09-29 21:52:01 +00:00
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2022-10-13 06:19:59 +00:00
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var api_src = try api.ApiSource.init(&pool);
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2022-11-18 02:42:23 +00:00
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var srv = http.Server.init();
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2022-10-13 09:23:57 +00:00
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defer srv.deinit();
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2022-10-16 12:48:36 +00:00
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try srv.listen(std.net.Address.parseIp("::1", 8080) catch unreachable);
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2022-10-13 09:23:57 +00:00
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2022-10-14 04:05:52 +00:00
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var i: usize = 0;
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while (i < cfg.worker_threads - 1) : (i += 1) {
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_ = try std.Thread.spawn(.{}, thread_main, .{ &api_src, &srv });
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}
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2022-10-13 09:23:57 +00:00
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thread_main(&api_src, &srv);
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2022-05-20 04:46:39 +00:00
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}
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