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|
const std = @import("std");
const c = @import("picohttpparser.zig");
const ExactSizeMatcher = @import("../exact_size_matcher.zig").ExactSizeMatcher;
const Match = ExactSizeMatcher(2);
const Output = @import("../global.zig").Output;
const fmt = std.fmt;
const assert = std.debug.assert;
pub const Header = struct {
name: []const u8,
value: []const u8,
pub fn isMultiline(self: Header) bool {
return @ptrToInt(self.name.ptr) == 0;
}
pub fn format(self: Header, comptime _: []const u8, _: fmt.FormatOptions, writer: anytype) !void {
if (Output.enable_ansi_colors) {
if (self.isMultiline()) {
try fmt.format(writer, comptime Output.prettyFmt("<r><cyan>{s}", true), .{self.value});
} else {
try fmt.format(writer, comptime Output.prettyFmt("<r><cyan>{s}<r><d>: <r>{s}", true), .{ self.name, self.value });
}
} else {
if (self.isMultiline()) {
try fmt.format(writer, comptime Output.prettyFmt("<r><cyan>{s}", false), .{self.value});
} else {
try fmt.format(writer, comptime Output.prettyFmt("<r><cyan>{s}<r><d>: <r>{s}", false), .{ self.name, self.value });
}
}
}
comptime {
assert(@sizeOf(Header) == @sizeOf(c.phr_header));
assert(@alignOf(Header) == @alignOf(c.phr_header));
}
};
pub const Request = struct {
method: []const u8,
path: []const u8,
minor_version: usize,
headers: []const Header,
pub fn format(self: Request, comptime _: []const u8, _: fmt.FormatOptions, writer: anytype) !void {
try fmt.format(writer, "{s} {s}\n", .{ self.method, self.path });
for (self.headers) |header| {
_ = try writer.write("\t");
try fmt.format(writer, "{s}\n", .{header});
}
}
pub fn parse(buf: []const u8, src: []Header) !Request {
var method: []const u8 = undefined;
var path: []const u8 = undefined;
var minor_version: c_int = undefined;
var num_headers: usize = src.len;
const rc = c.phr_parse_request(
buf.ptr,
buf.len,
@ptrCast([*c][*c]const u8, &method.ptr),
&method.len,
@ptrCast([*c][*c]const u8, &path.ptr),
&path.len,
&minor_version,
@ptrCast([*c]c.phr_header, src.ptr),
&num_headers,
0,
);
// Leave a sentinel value, for JavaScriptCore support.
if (rc > -1) @intToPtr([*]u8, @ptrToInt(path.ptr))[path.len] = 0;
return switch (rc) {
-1 => error.BadRequest,
-2 => error.ShortRead,
else => Request{
.method = method,
.path = path,
.minor_version = @intCast(usize, minor_version),
.headers = src[0..num_headers],
},
};
}
};
pub const Response = struct {
minor_version: usize,
status_code: usize,
status: []const u8,
headers: []Header,
bytes_read: c_int = 0,
pub fn format(self: Response, comptime _: []const u8, _: fmt.FormatOptions, writer: anytype) !void {
try fmt.format(writer, "< {d} {s}\n", .{ self.status_code, self.status });
for (self.headers) |header| {
_ = try writer.write("< \t");
try fmt.format(writer, "{s}\n", .{header});
}
}
pub fn parseParts(buf: []const u8, src: []Header, offset: ?*usize) !Response {
var minor_version: c_int = undefined;
var status_code: c_int = undefined;
var status: []const u8 = undefined;
var num_headers: usize = src.len;
const rc = c.phr_parse_response(
buf.ptr,
buf.len,
&minor_version,
&status_code,
@ptrCast([*c][*c]const u8, &status.ptr),
&status.len,
@ptrCast([*c]c.phr_header, src.ptr),
&num_headers,
offset.?.*,
);
return switch (rc) {
-1 => error.Malformed_HTTP_Response,
-2 => brk: {
offset.?.* += buf.len;
break :brk error.ShortRead;
},
else => Response{
.minor_version = @intCast(usize, minor_version),
.status_code = @intCast(usize, status_code),
.status = status,
.headers = src[0..num_headers],
.bytes_read = rc,
},
};
}
pub fn parse(buf: []const u8, src: []Header) !Response {
var offset: usize = 0;
const response = try parseParts(buf, src, &offset);
return response;
}
};
test "pico_http: parse response" {
const RES = "HTTP/1.1 200 OK\r\n" ++
"Date: Mon, 22 Mar 2021 08:15:54 GMT\r\n" ++
"Content-Type: text/html; charset=utf-8\r\n" ++
"Content-Length: 9593\r\n" ++
"Connection: keep-alive\r\n" ++
"Server: gunicorn/19.9.0\r\n" ++
"Access-Control-Allow-Origin: *\r\n" ++
"Access-Control-Allow-Credentials: true\r\n" ++
"\r\n";
var headers: [32]Header = undefined;
const res = try Response.parse(RES, &headers);
std.debug.print("Minor Version: {}\n", .{res.minor_version});
std.debug.print("Status Code: {}\n", .{res.status_code});
std.debug.print("Status: {s}\n", .{res.status});
for (res.headers) |header| {
std.debug.print("{}\n", .{header});
}
}
pub const Headers = struct {
headers: []const Header,
pub fn parse(buf: []const u8, src: []Header) !Headers {
var num_headers: usize = src.len;
const rc = c.phr_parse_headers(
buf.ptr,
buf.len,
@ptrCast([*c]c.phr_header, src.ptr),
@ptrCast([*c]usize, &num_headers),
0,
);
return switch (rc) {
-1 => error.BadHeaders,
-2 => error.ShortRead,
else => Headers{
.headers = src[0..num_headers],
},
};
}
};
test "pico_http: parse headers" {
const HEADERS = "Date: Mon, 22 Mar 2021 08:15:54 GMT\r\n" ++
"Content-Type: text/html; charset=utf-8\r\n" ++
"Content-Length: 9593\r\n" ++
"Connection: keep-alive\r\n" ++
"Server: gunicorn/19.9.0\r\n" ++
"Access-Control-Allow-Origin: *\r\n" ++
"Access-Control-Allow-Credentials: true\r\n" ++
"\r\n";
var headers: [32]Header = undefined;
const result = try Headers.parse(HEADERS, &headers);
for (result.headers) |header| {
std.debug.print("{}\n", .{header});
}
}
pub usingnamespace c;
|
