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Merge pull request #15487 from truemedian/http-tests

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std.http: more http fixes, add standalone http server test
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Andrew Kelley 2023-05-11 08:37:42 -07:00 committed by GitHub
commit 3bb3d39fb4
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8 changed files with 771 additions and 183 deletions
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9
lib/std/Uri.zig
View File

@ -216,6 +216,7 @@ pub fn format(
const needs_absolute = comptime std.mem.indexOf(u8, fmt, "+") != null;
const needs_path = comptime std.mem.indexOf(u8, fmt, "/") != null or fmt.len == 0;
const needs_fragment = comptime std.mem.indexOf(u8, fmt, "#") != null;
if (needs_absolute) {
try writer.writeAll(uri.scheme);
@ -253,9 +254,11 @@ pub fn format(
try Uri.writeEscapedQuery(writer, q);
}
if (uri.fragment) |f| {
try writer.writeAll("#");
try Uri.writeEscapedQuery(writer, f);
if (needs_fragment) {
if (uri.fragment) |f| {
try writer.writeAll("#");
try Uri.writeEscapedQuery(writer, f);
}
}
}
}

1
lib/std/http.zig
View File

@ -275,5 +275,4 @@ test {
_ = Client;
_ = Method;
_ = Status;
_ = @import("http/test.zig");
}

80
lib/std/http/Client.zig
View File

@ -71,7 +71,7 @@ pub const ConnectionPool = struct {
while (next) |node| : (next = node.prev) {
if ((node.data.buffered.conn.protocol == .tls) != criteria.is_tls) continue;
if (node.data.port != criteria.port) continue;
if (mem.eql(u8, node.data.host, criteria.host)) continue;
if (!mem.eql(u8, node.data.host, criteria.host)) continue;
pool.acquireUnsafe(node);
return node;
@ -251,47 +251,50 @@ pub const Connection = struct {
/// A buffered (and peekable) Connection.
pub const BufferedConnection = struct {
pub const buffer_size = 0x2000;
pub const buffer_size = std.crypto.tls.max_ciphertext_record_len;
conn: Connection,
buf: [buffer_size]u8 = undefined,
start: u16 = 0,
end: u16 = 0,
read_buf: [buffer_size]u8 = undefined,
read_start: u16 = 0,
read_end: u16 = 0,
write_buf: [buffer_size]u8 = undefined,
write_end: u16 = 0,
pub fn fill(bconn: *BufferedConnection) ReadError!void {
if (bconn.end != bconn.start) return;
if (bconn.read_end != bconn.read_start) return;
const nread = try bconn.conn.read(bconn.buf[0..]);
const nread = try bconn.conn.read(bconn.read_buf[0..]);
if (nread == 0) return error.EndOfStream;
bconn.start = 0;
bconn.end = @truncate(u16, nread);
bconn.read_start = 0;
bconn.read_end = @intCast(u16, nread);
}
pub fn peek(bconn: *BufferedConnection) []const u8 {
return bconn.buf[bconn.start..bconn.end];
return bconn.read_buf[bconn.read_start..bconn.read_end];
}
pub fn clear(bconn: *BufferedConnection, num: u16) void {
bconn.start += num;
bconn.read_start += num;
}
pub fn readAtLeast(bconn: *BufferedConnection, buffer: []u8, len: usize) ReadError!usize {
var out_index: u16 = 0;
while (out_index < len) {
const available = bconn.end - bconn.start;
const available = bconn.read_end - bconn.read_start;
const left = buffer.len - out_index;
if (available > 0) {
const can_read = @truncate(u16, @min(available, left));
const can_read = @intCast(u16, @min(available, left));
@memcpy(buffer[out_index..][0..can_read], bconn.buf[bconn.start..][0..can_read]);
@memcpy(buffer[out_index..][0..can_read], bconn.read_buf[bconn.read_start..][0..can_read]);
out_index += can_read;
bconn.start += can_read;
bconn.read_start += can_read;
continue;
}
if (left > bconn.buf.len) {
if (left > bconn.read_buf.len) {
// skip the buffer if the output is large enough
return bconn.conn.read(buffer[out_index..]);
}
@ -314,11 +317,30 @@ pub const BufferedConnection = struct {
}
pub fn writeAll(bconn: *BufferedConnection, buffer: []const u8) WriteError!void {
return bconn.conn.writeAll(buffer);
if (bconn.write_buf.len - bconn.write_end >= buffer.len) {
@memcpy(bconn.write_buf[bconn.write_end..][0..buffer.len], buffer);
bconn.write_end += @intCast(u16, buffer.len);
} else {
try bconn.flush();
try bconn.conn.writeAll(buffer);
}
}
pub fn write(bconn: *BufferedConnection, buffer: []const u8) WriteError!usize {
return bconn.conn.write(buffer);
if (bconn.write_buf.len - bconn.write_end >= buffer.len) {
@memcpy(bconn.write_buf[bconn.write_end..][0..buffer.len], buffer);
bconn.write_end += @intCast(u16, buffer.len);
return buffer.len;
} else {
try bconn.flush();
return try bconn.conn.write(buffer);
}
}
pub fn flush(bconn: *BufferedConnection) WriteError!void {
defer bconn.write_end = 0;
return bconn.conn.writeAll(bconn.write_buf[0..bconn.write_end]);
}
pub const WriteError = Connection.WriteError;
@ -355,8 +377,6 @@ pub const Compression = union(enum) {
/// A HTTP response originating from a server.
pub const Response = struct {
pub const ParseError = Allocator.Error || error{
ShortHttpStatusLine,
BadHttpVersion,
HttpHeadersInvalid,
HttpHeaderContinuationsUnsupported,
HttpTransferEncodingUnsupported,
@ -370,12 +390,12 @@ pub const Response = struct {
const first_line = it.next() orelse return error.HttpHeadersInvalid;
if (first_line.len < 12)
return error.ShortHttpStatusLine;
return error.HttpHeadersInvalid;
const version: http.Version = switch (int64(first_line[0..8])) {
int64("HTTP/1.0") => .@"HTTP/1.0",
int64("HTTP/1.1") => .@"HTTP/1.1",
else => return error.BadHttpVersion,
else => return error.HttpHeadersInvalid,
};
if (first_line[8] != ' ') return error.HttpHeadersInvalid;
const status = @intToEnum(http.Status, parseInt3(first_line[9..12].*));
@ -569,8 +589,7 @@ pub const Request = struct {
/// Send the request to the server.
pub fn start(req: *Request) StartError!void {
var buffered = std.io.bufferedWriter(req.connection.data.buffered.writer());
const w = buffered.writer();
const w = req.connection.data.buffered.writer();
try w.writeAll(@tagName(req.method));
try w.writeByte(' ');
@ -644,7 +663,7 @@ pub const Request = struct {
try w.writeAll("\r\n");
try buffered.flush();
try req.connection.data.buffered.flush();
}
pub const TransferReadError = BufferedConnection.ReadError || proto.HeadersParser.ReadError;
@ -695,16 +714,16 @@ pub const Request = struct {
if (req.method == .CONNECT and req.response.status == .ok) {
req.connection.data.closing = false;
req.connection.data.proxied = true;
req.response.parser.done = true;
}
// we default to using keep-alive if not provided
const req_connection = req.headers.getFirstValue("connection");
const req_keepalive = req_connection != null and !std.ascii.eqlIgnoreCase("close", req_connection.?);
const res_connection = req.response.headers.getFirstValue("connection");
const res_keepalive = res_connection != null and !std.ascii.eqlIgnoreCase("close", res_connection.?);
if (req_keepalive and res_keepalive) {
if (res_keepalive and (req_keepalive or req_connection == null)) {
req.connection.data.closing = false;
} else {
req.connection.data.closing = true;
@ -725,6 +744,11 @@ pub const Request = struct {
req.response.parser.done = true;
}
// HEAD requests have no body
if (req.method == .HEAD) {
req.response.parser.done = true;
}
if (req.transfer_encoding == .none and req.response.status.class() == .redirect and req.handle_redirects) {
req.response.skip = true;
@ -866,6 +890,8 @@ pub const Request = struct {
.content_length => |len| if (len != 0) return error.MessageNotCompleted,
.none => {},
}
try req.connection.data.buffered.flush();
}
};

11
lib/std/http/Headers.zig
View File

@ -36,17 +36,6 @@ pub const Field = struct {
name: []const u8,
value: []const u8,
pub fn modify(entry: *Field, allocator: Allocator, new_value: []const u8) !void {
if (entry.value.len <= new_value.len) {
// TODO: eliminate this use of `@constCast`.
@memcpy(@constCast(entry.value)[0..new_value.len], new_value);
} else {
allocator.free(entry.value);
entry.value = try allocator.dupe(u8, new_value);
}
}
fn lessThan(ctx: void, a: Field, b: Field) bool {
_ = ctx;
if (a.name.ptr == b.name.ptr) return false;

236
lib/std/http/Server.zig
View File

@ -95,47 +95,50 @@ pub const Connection = struct {
/// A buffered (and peekable) Connection.
pub const BufferedConnection = struct {
pub const buffer_size = 0x2000;
pub const buffer_size = std.crypto.tls.max_ciphertext_record_len;
conn: Connection,
buf: [buffer_size]u8 = undefined,
start: u16 = 0,
end: u16 = 0,
read_buf: [buffer_size]u8 = undefined,
read_start: u16 = 0,
read_end: u16 = 0,
write_buf: [buffer_size]u8 = undefined,
write_end: u16 = 0,
pub fn fill(bconn: *BufferedConnection) ReadError!void {
if (bconn.end != bconn.start) return;
if (bconn.read_end != bconn.read_start) return;
const nread = try bconn.conn.read(bconn.buf[0..]);
const nread = try bconn.conn.read(bconn.read_buf[0..]);
if (nread == 0) return error.EndOfStream;
bconn.start = 0;
bconn.end = @truncate(u16, nread);
bconn.read_start = 0;
bconn.read_end = @intCast(u16, nread);
}
pub fn peek(bconn: *BufferedConnection) []const u8 {
return bconn.buf[bconn.start..bconn.end];
return bconn.read_buf[bconn.read_start..bconn.read_end];
}
pub fn clear(bconn: *BufferedConnection, num: u16) void {
bconn.start += num;
bconn.read_start += num;
}
pub fn readAtLeast(bconn: *BufferedConnection, buffer: []u8, len: usize) ReadError!usize {
var out_index: u16 = 0;
while (out_index < len) {
const available = bconn.end - bconn.start;
const available = bconn.read_end - bconn.read_start;
const left = buffer.len - out_index;
if (available > 0) {
const can_read = @truncate(u16, @min(available, left));
const can_read = @intCast(u16, @min(available, left));
@memcpy(buffer[out_index..][0..can_read], bconn.buf[bconn.start..][0..can_read]);
@memcpy(buffer[out_index..][0..can_read], bconn.read_buf[bconn.read_start..][0..can_read]);
out_index += can_read;
bconn.start += can_read;
bconn.read_start += can_read;
continue;
}
if (left > bconn.buf.len) {
if (left > bconn.read_buf.len) {
// skip the buffer if the output is large enough
return bconn.conn.read(buffer[out_index..]);
}
@ -158,11 +161,30 @@ pub const BufferedConnection = struct {
}
pub fn writeAll(bconn: *BufferedConnection, buffer: []const u8) WriteError!void {
return bconn.conn.writeAll(buffer);
if (bconn.write_buf.len - bconn.write_end >= buffer.len) {
@memcpy(bconn.write_buf[bconn.write_end..][0..buffer.len], buffer);
bconn.write_end += @intCast(u16, buffer.len);
} else {
try bconn.flush();
try bconn.conn.writeAll(buffer);
}
}
pub fn write(bconn: *BufferedConnection, buffer: []const u8) WriteError!usize {
return bconn.conn.write(buffer);
if (bconn.write_buf.len - bconn.write_end >= buffer.len) {
@memcpy(bconn.write_buf[bconn.write_end..][0..buffer.len], buffer);
bconn.write_end += @intCast(u16, buffer.len);
return buffer.len;
} else {
try bconn.flush();
return try bconn.conn.write(buffer);
}
}
pub fn flush(bconn: *BufferedConnection) WriteError!void {
defer bconn.write_end = 0;
return bconn.conn.writeAll(bconn.write_buf[0..bconn.write_end]);
}
pub const WriteError = Connection.WriteError;
@ -199,8 +221,6 @@ pub const Compression = union(enum) {
/// A HTTP request originating from a client.
pub const Request = struct {
pub const ParseError = Allocator.Error || error{
ShortHttpStatusLine,
BadHttpVersion,
UnknownHttpMethod,
HttpHeadersInvalid,
HttpHeaderContinuationsUnsupported,
@ -215,7 +235,7 @@ pub const Request = struct {
const first_line = it.next() orelse return error.HttpHeadersInvalid;
if (first_line.len < 10)
return error.ShortHttpStatusLine;
return error.HttpHeadersInvalid;
const method_end = mem.indexOfScalar(u8, first_line, ' ') orelse return error.HttpHeadersInvalid;
const method_str = first_line[0..method_end];
@ -229,7 +249,7 @@ pub const Request = struct {
const version: http.Version = switch (int64(version_str[0..8])) {
int64("HTTP/1.0") => .@"HTTP/1.0",
int64("HTTP/1.1") => .@"HTTP/1.1",
else => return error.BadHttpVersion,
else => return error.HttpHeadersInvalid,
};
const target = first_line[method_end + 1 .. version_start];
@ -312,7 +332,7 @@ pub const Request = struct {
transfer_encoding: ?http.TransferEncoding = null,
transfer_compression: ?http.ContentEncoding = null,
headers: http.Headers = undefined,
headers: http.Headers,
parser: proto.HeadersParser,
compression: Compression = .none,
};
@ -329,21 +349,63 @@ pub const Response = struct {
transfer_encoding: ResponseTransfer = .none,
server: *Server,
allocator: Allocator,
address: net.Address,
connection: BufferedConnection,
headers: http.Headers,
request: Request,
state: State = .first,
const State = enum {
first,
start,
waited,
responded,
finished,
};
pub fn deinit(res: *Response) void {
res.server.allocator.destroy(res);
res.connection.close();
res.headers.deinit();
res.request.headers.deinit();
if (res.request.parser.header_bytes_owned) {
res.request.parser.header_bytes.deinit(res.allocator);
}
}
pub const ResetState = enum { reset, closing };
/// Reset this response to its initial state. This must be called before handling a second request on the same connection.
pub fn reset(res: *Response) void {
res.request.headers.deinit();
res.headers.deinit();
pub fn reset(res: *Response) ResetState {
if (res.state == .first) {
res.state = .start;
return .reset;
}
if (!res.request.parser.done) {
// If the response wasn't fully read, then we need to close the connection.
res.connection.conn.closing = true;
return .closing;
}
// A connection is only keep-alive if the Connection header is present and it's value is not "close".
// The server and client must both agree
//
// do() defaults to using keep-alive if the client requests it.
const res_connection = res.headers.getFirstValue("connection");
const res_keepalive = res_connection != null and !std.ascii.eqlIgnoreCase("close", res_connection.?);
const req_connection = res.request.headers.getFirstValue("connection");
const req_keepalive = req_connection != null and !std.ascii.eqlIgnoreCase("close", req_connection.?);
if (req_keepalive and (res_keepalive or res_connection == null)) {
res.connection.conn.closing = false;
} else {
res.connection.conn.closing = true;
}
switch (res.request.compression) {
.none => {},
@ -352,19 +414,30 @@ pub const Response = struct {
.zstd => |*zstd| zstd.deinit(),
}
if (!res.request.parser.done) {
// If the response wasn't fully read, then we need to close the connection.
res.connection.conn.closing = true;
}
res.state = .start;
res.version = .@"HTTP/1.1";
res.status = .ok;
res.reason = null;
res.transfer_encoding = .none;
res.headers.clearRetainingCapacity();
res.request.headers.clearAndFree(); // FIXME: figure out why `clearRetainingCapacity` causes a leak in hash_map here
res.request.parser.reset();
res.request = Request{
.version = undefined,
.method = undefined,
.target = undefined,
.headers = res.request.headers,
.parser = res.request.parser,
};
if (res.connection.conn.closing) {
res.connection.close();
if (res.request.parser.header_bytes_owned) {
res.request.parser.header_bytes.deinit(res.server.allocator);
}
return .closing;
} else {
res.request.parser.reset();
return .reset;
}
}
@ -372,8 +445,12 @@ pub const Response = struct {
/// Send the response headers.
pub fn do(res: *Response) !void {
var buffered = std.io.bufferedWriter(res.connection.writer());
const w = buffered.writer();
switch (res.state) {
.waited => res.state = .responded,
.first, .start, .responded, .finished => unreachable,
}
const w = res.connection.writer();
try w.writeAll(@tagName(res.version));
try w.writeByte(' ');
@ -391,7 +468,14 @@ pub const Response = struct {
}
if (!res.headers.contains("connection")) {
try w.writeAll("Connection: keep-alive\r\n");
const req_connection = res.request.headers.getFirstValue("connection");
const req_keepalive = req_connection != null and !std.ascii.eqlIgnoreCase("close", req_connection.?);
if (req_keepalive) {
try w.writeAll("Connection: keep-alive\r\n");
} else {
try w.writeAll("Connection: close\r\n");
}
}
const has_transfer_encoding = res.headers.contains("transfer-encoding");
@ -424,7 +508,7 @@ pub const Response = struct {
try w.writeAll("\r\n");
try buffered.flush();
try res.connection.flush();
}
pub const TransferReadError = BufferedConnection.ReadError || proto.HeadersParser.ReadError;
@ -452,29 +536,23 @@ pub const Response = struct {
/// Wait for the client to send a complete request head.
pub fn wait(res: *Response) WaitError!void {
switch (res.state) {
.first, .start => res.state = .waited,
.waited, .responded, .finished => unreachable,
}
while (true) {
try res.connection.fill();
const nchecked = try res.request.parser.checkCompleteHead(res.server.allocator, res.connection.peek());
const nchecked = try res.request.parser.checkCompleteHead(res.allocator, res.connection.peek());
res.connection.clear(@intCast(u16, nchecked));
if (res.request.parser.state.isContent()) break;
}
res.request.headers = .{ .allocator = res.server.allocator, .owned = true };
res.request.headers = .{ .allocator = res.allocator, .owned = true };
try res.request.parse(res.request.parser.header_bytes.items);
const res_connection = res.headers.getFirstValue("connection");
const res_keepalive = res_connection != null and !std.ascii.eqlIgnoreCase("close", res_connection.?);
const req_connection = res.request.headers.getFirstValue("connection");
const req_keepalive = req_connection != null and !std.ascii.eqlIgnoreCase("close", req_connection.?);
if (res_keepalive and req_keepalive) {
res.connection.conn.closing = false;
} else {
res.connection.conn.closing = true;
}
if (res.request.transfer_encoding) |te| {
switch (te) {
.chunked => {
@ -494,13 +572,13 @@ pub const Response = struct {
if (res.request.transfer_compression) |tc| switch (tc) {
.compress => return error.CompressionNotSupported,
.deflate => res.request.compression = .{
.deflate = std.compress.zlib.zlibStream(res.server.allocator, res.transferReader()) catch return error.CompressionInitializationFailed,
.deflate = std.compress.zlib.zlibStream(res.allocator, res.transferReader()) catch return error.CompressionInitializationFailed,
},
.gzip => res.request.compression = .{
.gzip = std.compress.gzip.decompress(res.server.allocator, res.transferReader()) catch return error.CompressionInitializationFailed,
.gzip = std.compress.gzip.decompress(res.allocator, res.transferReader()) catch return error.CompressionInitializationFailed,
},
.zstd => res.request.compression = .{
.zstd = std.compress.zstd.decompressStream(res.server.allocator, res.transferReader()),
.zstd = std.compress.zstd.decompressStream(res.allocator, res.transferReader()),
},
};
}
@ -515,6 +593,11 @@ pub const Response = struct {
}
pub fn read(res: *Response, buffer: []u8) ReadError!usize {
switch (res.state) {
.waited, .responded, .finished => {},
.first, .start => unreachable,
}
const out_index = switch (res.request.compression) {
.deflate => |*deflate| deflate.read(buffer) catch return error.DecompressionFailure,
.gzip => |*gzip| gzip.read(buffer) catch return error.DecompressionFailure,
@ -528,12 +611,12 @@ pub const Response = struct {
while (!res.request.parser.state.isContent()) { // read trailing headers
try res.connection.fill();
const nchecked = try res.request.parser.checkCompleteHead(res.server.allocator, res.connection.peek());
const nchecked = try res.request.parser.checkCompleteHead(res.allocator, res.connection.peek());
res.connection.clear(@intCast(u16, nchecked));
}
if (has_trail) {
res.request.headers = http.Headers{ .allocator = res.server.allocator, .owned = false };
res.request.headers = http.Headers{ .allocator = res.allocator, .owned = false };
// The response headers before the trailers are already guaranteed to be valid, so they will always be parsed again and cannot return an error.
// This will *only* fail for a malformed trailer.
@ -564,6 +647,11 @@ pub const Response = struct {
/// Write `bytes` to the server. The `transfer_encoding` request header determines how data will be sent.
pub fn write(res: *Response, bytes: []const u8) WriteError!usize {
switch (res.state) {
.responded => {},
.first, .waited, .start, .finished => unreachable,
}
switch (res.transfer_encoding) {
.chunked => {
try res.connection.writer().print("{x}\r\n", .{bytes.len});
@ -583,7 +671,7 @@ pub const Response = struct {
}
}
pub fn writeAll(req: *Request, bytes: []const u8) WriteError!void {
pub fn writeAll(req: *Response, bytes: []const u8) WriteError!void {
var index: usize = 0;
while (index < bytes.len) {
index += try write(req, bytes[index..]);
@ -594,11 +682,18 @@ pub const Response = struct {
/// Finish the body of a request. This notifies the server that you have no more data to send.
pub fn finish(res: *Response) FinishError!void {
switch (res.state) {
.responded => res.state = .finished,
.first, .waited, .start, .finished => unreachable,
}
switch (res.transfer_encoding) {
.chunked => try res.connection.writeAll("0\r\n\r\n"),
.content_length => |len| if (len != 0) return error.MessageNotCompleted,
.none => {},
}
try res.connection.flush();
}
};
@ -635,31 +730,34 @@ pub const HeaderStrategy = union(enum) {
static: []u8,
};
/// Accept a new connection and allocate a Response for it.
pub fn accept(server: *Server, options: HeaderStrategy) AcceptError!*Response {
pub const AcceptOptions = struct {
allocator: Allocator,
header_strategy: HeaderStrategy = .{ .dynamic = 8192 },
};
/// Accept a new connection.
pub fn accept(server: *Server, options: AcceptOptions) AcceptError!Response {
const in = try server.socket.accept();
const res = try server.allocator.create(Response);
res.* = .{
.server = server,
return Response{
.allocator = options.allocator,
.address = in.address,
.connection = .{ .conn = .{
.stream = in.stream,
.protocol = .plain,
} },
.headers = .{ .allocator = server.allocator },
.headers = .{ .allocator = options.allocator },
.request = .{
.version = undefined,
.method = undefined,
.target = undefined,
.parser = switch (options) {
.headers = .{ .allocator = options.allocator, .owned = false },
.parser = switch (options.header_strategy) {
.dynamic => |max| proto.HeadersParser.initDynamic(max),
.static => |buf| proto.HeadersParser.initStatic(buf),
},
},
};
return res;
}
test "HTTP server handles a chunked transfer coding request" {

72
lib/std/http/test.zig
View File

@ -1,72 +0,0 @@
const std = @import("std");
const expect = std.testing.expect;
test "client requests server" {
const builtin = @import("builtin");
// This test requires spawning threads.
if (builtin.single_threaded) {
return error.SkipZigTest;
}
const native_endian = comptime builtin.cpu.arch.endian();
if (builtin.zig_backend == .stage2_llvm and native_endian == .Big) {
// https://github.com/ziglang/zig/issues/13782
return error.SkipZigTest;
}
if (builtin.os.tag == .wasi) return error.SkipZigTest;
const allocator = std.testing.allocator;
const max_header_size = 8192;
var server = std.http.Server.init(allocator, .{ .reuse_address = true });
defer server.deinit();
const address = try std.net.Address.parseIp("127.0.0.1", 0);
try server.listen(address);
const server_port = server.socket.listen_address.in.getPort();
const server_thread = try std.Thread.spawn(.{}, (struct {
fn apply(s: *std.http.Server) !void {
const res = try s.accept(.{ .dynamic = max_header_size });
defer res.deinit();
defer res.reset();
try res.wait();
const server_body: []const u8 = "message from server!\n";
res.transfer_encoding = .{ .content_length = server_body.len };
try res.headers.append("content-type", "text/plain");
try res.headers.append("connection", "close");
try res.do();
var buf: [128]u8 = undefined;
const n = try res.readAll(&buf);
try expect(std.mem.eql(u8, buf[0..n], "Hello, World!\n"));
_ = try res.writer().writeAll(server_body);
try res.finish();
}
}).apply, .{&server});
var uri_buf: [22]u8 = undefined;
const uri = try std.Uri.parse(try std.fmt.bufPrint(&uri_buf, "http://127.0.0.1:{d}", .{server_port}));
var client = std.http.Client{ .allocator = allocator };
defer client.deinit();
var client_headers = std.http.Headers{ .allocator = allocator };
defer client_headers.deinit();
var client_req = try client.request(.POST, uri, client_headers, .{});
defer client_req.deinit();
client_req.transfer_encoding = .{ .content_length = 14 }; // this will be checked to ensure you sent exactly 14 bytes
try client_req.start(); // this sends the request
try client_req.writeAll("Hello, ");
try client_req.writeAll("World!\n");
try client_req.finish();
try client_req.wait(); // this waits for a response
const body = try client_req.reader().readAllAlloc(allocator, 8192 * 1024);
defer allocator.free(body);
try expect(std.mem.eql(u8, body, "message from server!\n"));
server_thread.join();
}

4
test/standalone.zig
View File

@ -55,6 +55,10 @@ pub const simple_cases = [_]SimpleCase{
.os_filter = .windows,
.link_libc = true,
},
.{
.src_path = "test/standalone/http.zig",
.all_modes = true,
},
// Ensure the development tools are buildable. Alphabetically sorted.
// No need to build `tools/spirv/grammar.zig`.

541
test/standalone/http.zig Normal file
View File

@ -0,0 +1,541 @@
const std = @import("std");
const http = std.http;
const Server = http.Server;
const Client = http.Client;
const mem = std.mem;
const testing = std.testing;
const max_header_size = 8192;
var gpa_server = std.heap.GeneralPurposeAllocator(.{ .stack_trace_frames = 12 }){};
var gpa_client = std.heap.GeneralPurposeAllocator(.{ .stack_trace_frames = 12 }){};
const salloc = gpa_server.allocator();
const calloc = gpa_client.allocator();
var server: Server = undefined;
fn handleRequest(res: *Server.Response) !void {
const log = std.log.scoped(.server);
log.info("{s} {s} {s}", .{ @tagName(res.request.method), @tagName(res.request.version), res.request.target });
const body = try res.reader().readAllAlloc(salloc, 8192);
defer salloc.free(body);
if (res.request.headers.contains("connection")) {
try res.headers.append("connection", "keep-alive");
}
if (mem.startsWith(u8, res.request.target, "/get")) {
if (std.mem.indexOf(u8, res.request.target, "?chunked") != null) {
res.transfer_encoding = .chunked;
} else {
res.transfer_encoding = .{ .content_length = 14 };
}
try res.headers.append("content-type", "text/plain");
try res.do();
if (res.request.method != .HEAD) {
try res.writeAll("Hello, ");
try res.writeAll("World!\n");
try res.finish();
}
} else if (mem.startsWith(u8, res.request.target, "/large")) {
res.transfer_encoding = .{ .content_length = 14 * 1024 + 14 * 10 };
try res.do();
var i: u32 = 0;
while (i < 5) : (i += 1) {
try res.writeAll("Hello, World!\n");
}
try res.writeAll("Hello, World!\n" ** 1024);
i = 0;
while (i < 5) : (i += 1) {
try res.writeAll("Hello, World!\n");
}
try res.finish();
} else if (mem.eql(u8, res.request.target, "/echo-content")) {
try testing.expectEqualStrings("Hello, World!\n", body);
try testing.expectEqualStrings("text/plain", res.request.headers.getFirstValue("content-type").?);
if (res.request.headers.contains("transfer-encoding")) {
try testing.expectEqualStrings("chunked", res.request.headers.getFirstValue("transfer-encoding").?);
res.transfer_encoding = .chunked;
} else {
res.transfer_encoding = .{ .content_length = 14 };
try testing.expectEqualStrings("14", res.request.headers.getFirstValue("content-length").?);
}
try res.do();
try res.writeAll("Hello, ");
try res.writeAll("World!\n");
try res.finish();
} else if (mem.eql(u8, res.request.target, "/trailer")) {
res.transfer_encoding = .chunked;
try res.do();
try res.writeAll("Hello, ");
try res.writeAll("World!\n");
// try res.finish();
try res.connection.writeAll("0\r\nX-Checksum: aaaa\r\n\r\n");
try res.connection.flush();
} else if (mem.eql(u8, res.request.target, "/redirect/1")) {
res.transfer_encoding = .chunked;
res.status = .found;
try res.headers.append("location", "../../get");
try res.do();
try res.writeAll("Hello, ");
try res.writeAll("Redirected!\n");
try res.finish();
} else if (mem.eql(u8, res.request.target, "/redirect/2")) {
res.transfer_encoding = .chunked;
res.status = .found;
try res.headers.append("location", "/redirect/1");
try res.do();
try res.writeAll("Hello, ");
try res.writeAll("Redirected!\n");
try res.finish();
} else if (mem.eql(u8, res.request.target, "/redirect/3")) {
res.transfer_encoding = .chunked;
const location = try std.fmt.allocPrint(salloc, "http://127.0.0.1:{d}/redirect/2", .{server.socket.listen_address.getPort()});
defer salloc.free(location);
res.status = .found;
try res.headers.append("location", location);
try res.do();
try res.writeAll("Hello, ");
try res.writeAll("Redirected!\n");
try res.finish();
} else if (mem.eql(u8, res.request.target, "/redirect/4")) {
res.transfer_encoding = .chunked;
res.status = .found;
try res.headers.append("location", "/redirect/3");
try res.do();
try res.writeAll("Hello, ");
try res.writeAll("Redirected!\n");
try res.finish();
} else {
res.status = .not_found;
try res.do();
}
}
var handle_new_requests = true;
fn runServer(srv: *Server) !void {
outer: while (handle_new_requests) {
var res = try srv.accept(.{
.allocator = salloc,
.header_strategy = .{ .dynamic = max_header_size },
});
defer res.deinit();
while (res.reset() != .closing) {
res.wait() catch |err| switch (err) {
error.HttpHeadersInvalid => continue :outer,
error.EndOfStream => continue,
else => return err,
};
try handleRequest(&res);
}
}
}
fn serverThread(srv: *Server) void {
defer srv.deinit();
defer _ = gpa_server.deinit();
runServer(srv) catch |err| {
std.debug.print("server error: {}\n", .{err});
if (@errorReturnTrace()) |trace| {
std.debug.dumpStackTrace(trace.*);
}
_ = gpa_server.deinit();
std.os.exit(1);
};
}
fn killServer(addr: std.net.Address) void {
handle_new_requests = false;
const conn = std.net.tcpConnectToAddress(addr) catch return;
conn.close();
}
pub fn main() !void {
const log = std.log.scoped(.client);
defer _ = gpa_client.deinit();
server = Server.init(salloc, .{ .reuse_address = true });
const addr = std.net.Address.parseIp("127.0.0.1", 0) catch unreachable;
try server.listen(addr);
const port = server.socket.listen_address.getPort();
const server_thread = try std.Thread.spawn(.{}, serverThread, .{&server});
var client = Client{ .allocator = calloc };
// defer client.deinit(); handled below
{ // read content-length response
var h = http.Headers{ .allocator = calloc };
defer h.deinit();
const location = try std.fmt.allocPrint(calloc, "http://127.0.0.1:{d}/get", .{port});
defer calloc.free(location);
const uri = try std.Uri.parse(location);
log.info("{s}", .{location});
var req = try client.request(.GET, uri, h, .{});
defer req.deinit();
try req.start();
try req.wait();
const body = try req.reader().readAllAlloc(calloc, 8192);
defer calloc.free(body);
try testing.expectEqualStrings("Hello, World!\n", body);
try testing.expectEqualStrings("text/plain", req.response.headers.getFirstValue("content-type").?);
}
// connection has been kept alive
try testing.expect(client.connection_pool.free_len == 1);
{ // read large content-length response
var h = http.Headers{ .allocator = calloc };
defer h.deinit();
const location = try std.fmt.allocPrint(calloc, "http://127.0.0.1:{d}/large", .{port});
defer calloc.free(location);
const uri = try std.Uri.parse(location);
log.info("{s}", .{location});
var req = try client.request(.GET, uri, h, .{});
defer req.deinit();
try req.start();
try req.wait();
const body = try req.reader().readAllAlloc(calloc, 8192 * 1024);
defer calloc.free(body);
try testing.expectEqual(@as(usize, 14 * 1024 + 14 * 10), body.len);
}
// connection has been kept alive
try testing.expect(client.connection_pool.free_len == 1);
{ // send head request and not read chunked
var h = http.Headers{ .allocator = calloc };
defer h.deinit();
const location = try std.fmt.allocPrint(calloc, "http://127.0.0.1:{d}/get", .{port});
defer calloc.free(location);
const uri = try std.Uri.parse(location);
log.info("{s}", .{location});
var req = try client.request(.HEAD, uri, h, .{});
defer req.deinit();
try req.start();
try req.wait();
const body = try req.reader().readAllAlloc(calloc, 8192);
defer calloc.free(body);
try testing.expectEqualStrings("", body);
try testing.expectEqualStrings("text/plain", req.response.headers.getFirstValue("content-type").?);
try testing.expectEqualStrings("14", req.response.headers.getFirstValue("content-length").?);
}
// connection has been kept alive
try testing.expect(client.connection_pool.free_len == 1);
{ // read chunked response
var h = http.Headers{ .allocator = calloc };
defer h.deinit();
const location = try std.fmt.allocPrint(calloc, "http://127.0.0.1:{d}/get?chunked", .{port});
defer calloc.free(location);
const uri = try std.Uri.parse(location);
log.info("{s}", .{location});
var req = try client.request(.GET, uri, h, .{});
defer req.deinit();
try req.start();
try req.wait();
const body = try req.reader().readAllAlloc(calloc, 8192);
defer calloc.free(body);
try testing.expectEqualStrings("Hello, World!\n", body);
try testing.expectEqualStrings("text/plain", req.response.headers.getFirstValue("content-type").?);
}
// connection has been kept alive
try testing.expect(client.connection_pool.free_len == 1);
{ // send head request and not read chunked
var h = http.Headers{ .allocator = calloc };
defer h.deinit();
const location = try std.fmt.allocPrint(calloc, "http://127.0.0.1:{d}/get?chunked", .{port});
defer calloc.free(location);
const uri = try std.Uri.parse(location);
log.info("{s}", .{location});
var req = try client.request(.HEAD, uri, h, .{});
defer req.deinit();
try req.start();
try req.wait();
const body = try req.reader().readAllAlloc(calloc, 8192);
defer calloc.free(body);
try testing.expectEqualStrings("", body);
try testing.expectEqualStrings("text/plain", req.response.headers.getFirstValue("content-type").?);
try testing.expectEqualStrings("chunked", req.response.headers.getFirstValue("transfer-encoding").?);
}
// connection has been kept alive
try testing.expect(client.connection_pool.free_len == 1);
{ // check trailing headers
var h = http.Headers{ .allocator = calloc };
defer h.deinit();
const location = try std.fmt.allocPrint(calloc, "http://127.0.0.1:{d}/trailer", .{port});
defer calloc.free(location);
const uri = try std.Uri.parse(location);
log.info("{s}", .{location});
var req = try client.request(.GET, uri, h, .{});
defer req.deinit();
try req.start();
try req.wait();
const body = try req.reader().readAllAlloc(calloc, 8192);
defer calloc.free(body);
try testing.expectEqualStrings("Hello, World!\n", body);
try testing.expectEqualStrings("aaaa", req.response.headers.getFirstValue("x-checksum").?);
}
// connection has been kept alive
try testing.expect(client.connection_pool.free_len == 1);
{ // send content-length request
var h = http.Headers{ .allocator = calloc };
defer h.deinit();
try h.append("content-type", "text/plain");
const location = try std.fmt.allocPrint(calloc, "http://127.0.0.1:{d}/echo-content", .{port});
defer calloc.free(location);
const uri = try std.Uri.parse(location);
log.info("{s}", .{location});
var req = try client.request(.POST, uri, h, .{});
defer req.deinit();
req.transfer_encoding = .{ .content_length = 14 };
try req.start();
try req.writeAll("Hello, ");
try req.writeAll("World!\n");
try req.finish();
try req.wait();
const body = try req.reader().readAllAlloc(calloc, 8192);
defer calloc.free(body);
try testing.expectEqualStrings("Hello, World!\n", body);
}
// connection has been kept alive
try testing.expect(client.connection_pool.free_len == 1);
{ // read content-length response with connection close
var h = http.Headers{ .allocator = calloc };
defer h.deinit();
try h.append("connection", "close");
const location = try std.fmt.allocPrint(calloc, "http://127.0.0.1:{d}/get", .{port});
defer calloc.free(location);
const uri = try std.Uri.parse(location);
log.info("{s}", .{location});
var req = try client.request(.GET, uri, h, .{});
defer req.deinit();
try req.start();
try req.wait();
const body = try req.reader().readAllAlloc(calloc, 8192);
defer calloc.free(body);
try testing.expectEqualStrings("Hello, World!\n", body);
try testing.expectEqualStrings("text/plain", req.response.headers.getFirstValue("content-type").?);
}
// connection has been closed
try testing.expect(client.connection_pool.free_len == 0);
{ // send chunked request
var h = http.Headers{ .allocator = calloc };
defer h.deinit();
try h.append("content-type", "text/plain");
const location = try std.fmt.allocPrint(calloc, "http://127.0.0.1:{d}/echo-content", .{port});
defer calloc.free(location);
const uri = try std.Uri.parse(location);
log.info("{s}", .{location});
var req = try client.request(.POST, uri, h, .{});
defer req.deinit();
req.transfer_encoding = .chunked;
try req.start();
try req.writeAll("Hello, ");
try req.writeAll("World!\n");
try req.finish();
try req.wait();
const body = try req.reader().readAllAlloc(calloc, 8192);
defer calloc.free(body);
try testing.expectEqualStrings("Hello, World!\n", body);
}
// connection has been kept alive
try testing.expect(client.connection_pool.free_len == 1);
{ // relative redirect
var h = http.Headers{ .allocator = calloc };
defer h.deinit();
const location = try std.fmt.allocPrint(calloc, "http://127.0.0.1:{d}/redirect/1", .{port});
defer calloc.free(location);
const uri = try std.Uri.parse(location);
log.info("{s}", .{location});
var req = try client.request(.GET, uri, h, .{});
defer req.deinit();
try req.start();
try req.wait();
const body = try req.reader().readAllAlloc(calloc, 8192);
defer calloc.free(body);
try testing.expectEqualStrings("Hello, World!\n", body);
}
// connection has been kept alive
try testing.expect(client.connection_pool.free_len == 1);
{ // redirect from root
var h = http.Headers{ .allocator = calloc };
defer h.deinit();
const location = try std.fmt.allocPrint(calloc, "http://127.0.0.1:{d}/redirect/2", .{port});
defer calloc.free(location);
const uri = try std.Uri.parse(location);
log.info("{s}", .{location});
var req = try client.request(.GET, uri, h, .{});
defer req.deinit();
try req.start();
try req.wait();
const body = try req.reader().readAllAlloc(calloc, 8192);
defer calloc.free(body);
try testing.expectEqualStrings("Hello, World!\n", body);
}
// connection has been kept alive
try testing.expect(client.connection_pool.free_len == 1);
{ // absolute redirect
var h = http.Headers{ .allocator = calloc };
defer h.deinit();
const location = try std.fmt.allocPrint(calloc, "http://127.0.0.1:{d}/redirect/3", .{port});
defer calloc.free(location);
const uri = try std.Uri.parse(location);
log.info("{s}", .{location});
var req = try client.request(.GET, uri, h, .{});
defer req.deinit();
try req.start();
try req.wait();
const body = try req.reader().readAllAlloc(calloc, 8192);
defer calloc.free(body);
try testing.expectEqualStrings("Hello, World!\n", body);
}
// connection has been kept alive
try testing.expect(client.connection_pool.free_len == 1);
{ // too many redirects
var h = http.Headers{ .allocator = calloc };
defer h.deinit();
const location = try std.fmt.allocPrint(calloc, "http://127.0.0.1:{d}/redirect/4", .{port});
defer calloc.free(location);
const uri = try std.Uri.parse(location);
log.info("{s}", .{location});
var req = try client.request(.GET, uri, h, .{});
defer req.deinit();
try req.start();
req.wait() catch |err| switch (err) {
error.TooManyHttpRedirects => {},
else => return err,
};
}
// connection has been kept alive
try testing.expect(client.connection_pool.free_len == 1);
client.deinit();
killServer(server.socket.listen_address);
server_thread.join();
}