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Add an insecure_disable_tls_host_verification command line option

Browse Source 
When set, this disables the host verification of all HTTP requests. Available
for both the fetch and serve mode.

Also introduced an App.Config, for future command line options which need to
be passed more deeply into the code.
This commit is contained in:
Karl Seguin
2025-03-27 18:02:30 +08:00
parent 3a1a582013
commit c6538e1038
7 changed files with 81 additions and 30 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
src/app.zig
View File

@@ -17,11 +17,18 @@ pub const App = struct {
app_dir_path: ?[]const u8,
pub const RunMode = enum {
serve,
help,
fetch,
serve,
version,
};
pub fn init(allocator: Allocator, run_mode: RunMode) !*App {
pub const Config = struct {
tls_verify_host: bool = true,
run_mode: RunMode,
};
pub fn init(allocator: Allocator, config: Config) !*App {
const app = try allocator.create(App);
errdefer allocator.destroy(app);
@@ -38,9 +45,11 @@ pub const App = struct {
.allocator = allocator,
.telemetry = undefined,
.app_dir_path = app_dir_path,
.http_client = try HttpClient.init(allocator, 5),
.http_client = try HttpClient.init(allocator, 5, .{
.tls_verify_host = config.tls_verify_host,
}),
};
app.telemetry = Telemetry.init(app, run_mode);
app.telemetry = Telemetry.init(app, config.run_mode);
return app;
}

2
src/cdp/testing.zig
View File

@@ -281,7 +281,7 @@ const TestContext = struct {
pub fn context() TestContext {
return .{
.app = App.init(std.testing.allocator, .serve) catch unreachable,
.app = App.init(std.testing.allocator, .{ .run_mode = .serve }) catch unreachable,
.arena = std.heap.ArenaAllocator.init(std.testing.allocator),
};
}

26
src/http/client.zig
View File

@@ -45,9 +45,13 @@ pub const Client = struct {
allocator: Allocator,
state_pool: StatePool,
root_ca: tls.config.CertBundle,
tls_verify_host: bool = true,
// we only allow passing in a root_ca for testing
pub fn init(allocator: Allocator, max_concurrent: usize) !Client {
const Opts = struct {
tls_verify_host: bool = true,
};
pub fn init(allocator: Allocator, max_concurrent: usize, opts: Opts) !Client {
var root_ca = try tls.config.CertBundle.fromSystem(allocator);
errdefer root_ca.deinit(allocator);
@@ -58,6 +62,7 @@ pub const Client = struct {
.root_ca = root_ca,
.allocator = allocator,
.state_pool = state_pool,
.tls_verify_host = opts.tls_verify_host,
};
}
@@ -123,7 +128,7 @@ pub const Request = struct {
_has_host_header: bool,
// Whether or not we should verify that the host matches the certificate CN
_tls_verify_host: bool = true,
_tls_verify_host: bool,
pub const Method = enum {
GET,
@@ -167,6 +172,7 @@ pub const Request = struct {
._client = client,
._redirect_count = 0,
._has_host_header = false,
._tls_verify_host = client.tls_verify_host,
};
}
@@ -205,11 +211,13 @@ pub const Request = struct {
// TODO timeout
const SendSyncOpts = struct {
tls_verify_host: bool = true,
tls_verify_host: ?bool = null,
};
// Makes an synchronous request
pub fn sendSync(self: *Request, opts: SendSyncOpts) anyerror!Response {
self._tls_verify_host = opts.tls_verify_host;
if (opts.tls_verify_host) |override| {
self._tls_verify_host = override;
}
try self.prepareInitialSend();
return self.doSendSync();
}
@@ -230,11 +238,13 @@ pub const Request = struct {
}
const SendAsyncOpts = struct {
tls_verify_host: bool = true,
tls_verify_host: ?bool = null,
};
// Makes an asynchronous request
pub fn sendAsync(self: *Request, loop: anytype, handler: anytype, opts: SendAsyncOpts) !void {
self._tls_verify_host = opts.tls_verify_host;
if (opts.tls_verify_host) |override| {
self._tls_verify_host = override;
}
try self.prepareInitialSend();
return self.doSendAsync(loop, handler);
}
@@ -2176,5 +2186,5 @@ fn testReader(state: *State, res: *TestResponse, data: []const u8) !void {
}
fn testClient() !Client {
return try Client.init(testing.allocator, 1);
return try Client.init(testing.allocator, 1, .{});
}

60
src/main.zig
View File

@@ -22,6 +22,7 @@ const Allocator = std.mem.Allocator;
const jsruntime = @import("jsruntime");
const App = @import("app.zig").App;
const Browser = @import("browser/browser.zig").Browser;
const server = @import("server.zig");
@@ -69,9 +70,12 @@ pub fn main() !void {
log.err("address (host:port) {any}\n", .{err});
return args.printUsageAndExit(false);
};
var app = try @import("app.zig").App.init(alloc, .serve);
var app = try App.init(alloc, .{
.run_mode = args.mode,
.tls_verify_host = opts.tls_verify_host,
});
defer app.deinit();
app.telemetry.record(.{ .run = {} });
const timeout = std.time.ns_per_s * @as(u64, opts.timeout);
@@ -83,7 +87,10 @@ pub fn main() !void {
.fetch => |opts| {
log.debug("Fetch mode: url {s}, dump {any}", .{ opts.url, opts.dump });
var app = try @import("app.zig").App.init(alloc, .fetch);
var app = try App.init(alloc, .{
.run_mode = args.mode,
.tls_verify_host = opts.tls_verify_host,
});
defer app.deinit();
app.telemetry.record(.{ .run = {} });
@@ -125,14 +132,7 @@ const Command = struct {
mode: Mode,
exec_name: []const u8,
const ModeType = enum {
help,
fetch,
serve,
version,
};
const Mode = union(ModeType) {
const Mode = union(App.RunMode) {
help: bool, // false when being printed because of an error
fetch: Fetch,
serve: Serve,
@@ -143,11 +143,13 @@ const Command = struct {
host: []const u8,
port: u16,
timeout: u16,
tls_verify_host: bool,
};
const Fetch = struct {
url: []const u8,
dump: bool = false,
tls_verify_host: bool,
};
fn printUsageAndExit(self: *const Command, success: bool) void {
@@ -164,6 +166,12 @@ const Command = struct {
\\--dump Dumps document to stdout.
\\ Defaults to false.
\\
\\--insecure_disable_tls_host_verification
\\ Disables host verification on all HTTP requests.
\\ This is an advanced option which should only be
\\ set if you understand and accept the risk of
\\ disabling host verification.
\\
\\serve command
\\Starts a websocket CDP server
\\Example: {s} serve --host 127.0.0.1 --port 9222
@@ -178,11 +186,18 @@ const Command = struct {
\\--timeout Inactivity timeout in seconds before disconnecting clients
\\ Defaults to 3 (seconds)
\\
\\--insecure_disable_tls_host_verification
\\ Disables host verification on all HTTP requests.
\\ This is an advanced option which should only be
\\ set if you understand and accept the risk of
\\ disabling host verification.
\\
\\version command
\\Displays the version of {s}
\\
\\help command
\\Displays this message
\\
;
std.debug.print(usage, .{ self.exec_name, self.exec_name, self.exec_name, self.exec_name });
if (success) {
@@ -204,7 +219,7 @@ fn parseArgs(allocator: Allocator) !Command {
};
const mode_string = args.next() orelse "";
const mode = std.meta.stringToEnum(Command.ModeType, mode_string) orelse blk: {
const mode = std.meta.stringToEnum(App.RunMode, mode_string) orelse blk: {
const inferred_mode = inferMode(mode_string) orelse return cmd;
// "command" wasn't a command but an option. We can't reset args, but
// we can create a new one. Not great, but this fallback is temporary
@@ -227,7 +242,7 @@ fn parseArgs(allocator: Allocator) !Command {
return cmd;
}
fn inferMode(opt: []const u8) ?Command.ModeType {
fn inferMode(opt: []const u8) ?App.RunMode {
if (opt.len == 0) {
return .serve;
}
@@ -260,6 +275,7 @@ fn parseServeArgs(
var host: []const u8 = "127.0.0.1";
var port: u16 = 9222;
var timeout: u16 = 3;
var tls_verify_host = true;
while (args.next()) |opt| {
if (std.mem.eql(u8, "--host", opt)) {
@@ -297,6 +313,11 @@ fn parseServeArgs(
continue;
}
if (std.mem.eql(u8, "--insecure_tls_verify_host", opt)) {
tls_verify_host = false;
continue;
}
log.err("Unknown option to serve command: '{s}'", .{opt});
return error.UnkownOption;
}
@@ -305,6 +326,7 @@ fn parseServeArgs(
.host = host,
.port = port,
.timeout = timeout,
.tls_verify_host = tls_verify_host,
};
}
@@ -314,6 +336,7 @@ fn parseFetchArgs(
) !Command.Fetch {
var dump: bool = false;
var url: ?[]const u8 = null;
var tls_verify_host = true;
while (args.next()) |opt| {
if (std.mem.eql(u8, "--dump", opt)) {
@@ -321,6 +344,11 @@ fn parseFetchArgs(
continue;
}
if (std.mem.eql(u8, "--insecure_disable_tls_host_verification", opt)) {
tls_verify_host = false;
continue;
}
if (std.mem.startsWith(u8, opt, "--")) {
log.err("Unknown option to serve command: '{s}'", .{opt});
return error.UnkownOption;
@@ -338,7 +366,11 @@ fn parseFetchArgs(
return error.MissingURL;
}
return .{ .url = url.?, .dump = dump };
return .{
.url = url.?,
.dump = dump,
.tls_verify_host = tls_verify_host,
};
}
var verbose: bool = builtin.mode == .Debug; // In debug mode, force verbose.

2
src/main_tests.zig
View File

@@ -88,7 +88,7 @@ fn testExecFn(
std.debug.print("documentHTMLClose error: {s}\n", .{@errorName(err)});
};
var http_client = try @import("http/client.zig").Client.init(alloc, 5);
var http_client = try @import("http/client.zig").Client.init(alloc, 5, .{});
defer http_client.deinit();
try js_env.setUserContext(.{

2
src/main_unit_tests.zig
View File

@@ -213,7 +213,7 @@ fn serveHTTPS(address: std.net.Address) !void {
fn serveCDP(address: std.net.Address) !void {
const App = @import("app.zig").App;
var app = try App.init(gpa.allocator(), .serve);
var app = try App.init(gpa.allocator(), .{.run_mode = .serve});
defer app.deinit();
const server = @import("server.zig");

2
src/testing.zig
View File

@@ -157,7 +157,7 @@ pub fn print(comptime fmt: []const u8, args: anytype) void {
// dummy opts incase we want to add something, and not have to break all the callers
pub fn app(_: anytype) *App {
return App.init(allocator, .serve) catch unreachable;
return App.init(allocator, .{.run_mode = .serve}) catch unreachable;
}
pub const Random = struct {