nghttp2/src/shrpx_mruby_module_request.cc

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/*
* nghttp2 - HTTP/2 C Library
*
* Copyright (c) 2015 Tatsuhiro Tsujikawa
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include "shrpx_mruby_module_request.h"
#include <mruby/variable.h>
#include <mruby/string.h>
#include <mruby/hash.h>
#include <mruby/array.h>
#include "shrpx_downstream.h"
#include "shrpx_upstream.h"
#include "shrpx_client_handler.h"
#include "shrpx_mruby.h"
#include "shrpx_mruby_module.h"
#include "util.h"
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#include "http2.h"
namespace shrpx {
namespace mruby {
namespace {
mrb_value request_init(mrb_state *mrb, mrb_value self) { return self; }
} // namespace
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namespace {
mrb_value request_get_http_version_major(mrb_state *mrb, mrb_value self) {
auto data = static_cast<MRubyAssocData *>(mrb->ud);
auto downstream = data->downstream;
const auto &req = downstream->request();
return mrb_fixnum_value(req.http_major);
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}
} // namespace
namespace {
mrb_value request_get_http_version_minor(mrb_state *mrb, mrb_value self) {
auto data = static_cast<MRubyAssocData *>(mrb->ud);
auto downstream = data->downstream;
const auto &req = downstream->request();
return mrb_fixnum_value(req.http_minor);
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}
} // namespace
namespace {
mrb_value request_get_method(mrb_state *mrb, mrb_value self) {
auto data = static_cast<MRubyAssocData *>(mrb->ud);
auto downstream = data->downstream;
const auto &req = downstream->request();
auto method = http2::to_method_string(req.method);
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return mrb_str_new(mrb, method.c_str(), method.size());
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}
} // namespace
namespace {
mrb_value request_set_method(mrb_state *mrb, mrb_value self) {
auto data = static_cast<MRubyAssocData *>(mrb->ud);
auto downstream = data->downstream;
auto &req = downstream->request();
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check_phase(mrb, data->phase, PHASE_REQUEST);
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const char *method;
mrb_int n;
mrb_get_args(mrb, "s", &method, &n);
if (n == 0) {
mrb_raise(mrb, E_RUNTIME_ERROR, "method must not be empty string");
}
auto token =
http2::lookup_method_token(reinterpret_cast<const uint8_t *>(method), n);
if (token == -1) {
mrb_raise(mrb, E_RUNTIME_ERROR, "method not supported");
}
req.method = token;
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return self;
}
} // namespace
namespace {
mrb_value request_get_authority(mrb_state *mrb, mrb_value self) {
auto data = static_cast<MRubyAssocData *>(mrb->ud);
auto downstream = data->downstream;
const auto &req = downstream->request();
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return mrb_str_new(mrb, req.authority.c_str(), req.authority.size());
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}
} // namespace
namespace {
mrb_value request_set_authority(mrb_state *mrb, mrb_value self) {
auto data = static_cast<MRubyAssocData *>(mrb->ud);
auto downstream = data->downstream;
auto &req = downstream->request();
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auto &balloc = downstream->get_block_allocator();
check_phase(mrb, data->phase, PHASE_REQUEST);
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const char *authority;
mrb_int n;
mrb_get_args(mrb, "s", &authority, &n);
if (n == 0) {
mrb_raise(mrb, E_RUNTIME_ERROR, "authority must not be empty string");
}
req.authority =
make_string_ref(balloc, StringRef{authority, static_cast<size_t>(n)});
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return self;
}
} // namespace
namespace {
mrb_value request_get_scheme(mrb_state *mrb, mrb_value self) {
auto data = static_cast<MRubyAssocData *>(mrb->ud);
auto downstream = data->downstream;
const auto &req = downstream->request();
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return mrb_str_new(mrb, req.scheme.c_str(), req.scheme.size());
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}
} // namespace
namespace {
mrb_value request_set_scheme(mrb_state *mrb, mrb_value self) {
auto data = static_cast<MRubyAssocData *>(mrb->ud);
auto downstream = data->downstream;
auto &req = downstream->request();
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auto &balloc = downstream->get_block_allocator();
check_phase(mrb, data->phase, PHASE_REQUEST);
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const char *scheme;
mrb_int n;
mrb_get_args(mrb, "s", &scheme, &n);
if (n == 0) {
mrb_raise(mrb, E_RUNTIME_ERROR, "scheme must not be empty string");
}
req.scheme =
make_string_ref(balloc, StringRef{scheme, static_cast<size_t>(n)});
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return self;
}
} // namespace
namespace {
mrb_value request_get_path(mrb_state *mrb, mrb_value self) {
auto data = static_cast<MRubyAssocData *>(mrb->ud);
auto downstream = data->downstream;
const auto &req = downstream->request();
return mrb_str_new(mrb, req.path.c_str(), req.path.size());
}
} // namespace
namespace {
mrb_value request_set_path(mrb_state *mrb, mrb_value self) {
auto data = static_cast<MRubyAssocData *>(mrb->ud);
auto downstream = data->downstream;
auto &req = downstream->request();
auto &balloc = downstream->get_block_allocator();
check_phase(mrb, data->phase, PHASE_REQUEST);
const char *path;
mrb_int pathlen;
mrb_get_args(mrb, "s", &path, &pathlen);
req.path =
make_string_ref(balloc, StringRef{path, static_cast<size_t>(pathlen)});
return self;
}
} // namespace
namespace {
mrb_value request_get_headers(mrb_state *mrb, mrb_value self) {
auto data = static_cast<MRubyAssocData *>(mrb->ud);
auto downstream = data->downstream;
const auto &req = downstream->request();
return create_headers_hash(mrb, req.fs.headers());
}
} // namespace
namespace {
mrb_value request_mod_header(mrb_state *mrb, mrb_value self, bool repl) {
auto data = static_cast<MRubyAssocData *>(mrb->ud);
auto downstream = data->downstream;
auto &req = downstream->request();
auto &balloc = downstream->get_block_allocator();
check_phase(mrb, data->phase, PHASE_REQUEST);
mrb_value key, values;
mrb_get_args(mrb, "So", &key, &values);
if (RSTRING_LEN(key) == 0) {
mrb_raise(mrb, E_RUNTIME_ERROR, "empty key is not allowed");
}
auto ai = mrb_gc_arena_save(mrb);
key = mrb_funcall(mrb, key, "downcase", 0);
auto keyref =
make_string_ref(balloc, StringRef{RSTRING_PTR(key),
static_cast<size_t>(RSTRING_LEN(key))});
mrb_gc_arena_restore(mrb, ai);
auto token = http2::lookup_token(keyref.byte(), keyref.size());
if (repl) {
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size_t p = 0;
auto &headers = req.fs.headers();
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for (size_t i = 0; i < headers.size(); ++i) {
auto &kv = headers[i];
if (kv.name == keyref) {
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continue;
}
if (i != p) {
headers[p++] = std::move(kv);
}
}
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headers.resize(p);
}
if (mrb_array_p(values)) {
auto n = mrb_ary_len(mrb, values);
for (int i = 0; i < n; ++i) {
auto value = mrb_ary_ref(mrb, values, i);
if (!mrb_string_p(value)) {
mrb_raise(mrb, E_RUNTIME_ERROR, "value must be string");
}
req.fs.add_header_token(
keyref,
make_string_ref(balloc,
StringRef{RSTRING_PTR(value),
static_cast<size_t>(RSTRING_LEN(value))}),
false, token);
}
} else if (mrb_string_p(values)) {
req.fs.add_header_token(
keyref,
make_string_ref(balloc,
StringRef{RSTRING_PTR(values),
static_cast<size_t>(RSTRING_LEN(values))}),
false, token);
} else {
mrb_raise(mrb, E_RUNTIME_ERROR, "value must be string");
}
return mrb_nil_value();
}
} // namespace
namespace {
mrb_value request_set_header(mrb_state *mrb, mrb_value self) {
return request_mod_header(mrb, self, true);
}
} // namespace
namespace {
mrb_value request_add_header(mrb_state *mrb, mrb_value self) {
return request_mod_header(mrb, self, false);
}
} // namespace
namespace {
mrb_value request_clear_headers(mrb_state *mrb, mrb_value self) {
auto data = static_cast<MRubyAssocData *>(mrb->ud);
auto downstream = data->downstream;
auto &req = downstream->request();
check_phase(mrb, data->phase, PHASE_REQUEST);
req.fs.clear_headers();
return mrb_nil_value();
}
} // namespace
namespace {
mrb_value request_push(mrb_state *mrb, mrb_value self) {
auto data = static_cast<MRubyAssocData *>(mrb->ud);
auto downstream = data->downstream;
auto upstream = downstream->get_upstream();
const char *uri;
mrb_int len;
mrb_get_args(mrb, "s", &uri, &len);
upstream->initiate_push(downstream, StringRef{uri, static_cast<size_t>(len)});
return mrb_nil_value();
}
} // namespace
void init_request_class(mrb_state *mrb, RClass *module) {
auto request_class =
mrb_define_class_under(mrb, module, "Request", mrb->object_class);
mrb_define_method(mrb, request_class, "initialize", request_init,
MRB_ARGS_NONE());
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mrb_define_method(mrb, request_class, "http_version_major",
request_get_http_version_major, MRB_ARGS_NONE());
mrb_define_method(mrb, request_class, "http_version_minor",
request_get_http_version_minor, MRB_ARGS_NONE());
mrb_define_method(mrb, request_class, "method", request_get_method,
MRB_ARGS_NONE());
mrb_define_method(mrb, request_class, "method=", request_set_method,
MRB_ARGS_REQ(1));
mrb_define_method(mrb, request_class, "authority", request_get_authority,
MRB_ARGS_NONE());
mrb_define_method(mrb, request_class, "authority=", request_set_authority,
MRB_ARGS_REQ(1));
mrb_define_method(mrb, request_class, "scheme", request_get_scheme,
MRB_ARGS_NONE());
mrb_define_method(mrb, request_class, "scheme=", request_set_scheme,
MRB_ARGS_REQ(1));
mrb_define_method(mrb, request_class, "path", request_get_path,
MRB_ARGS_NONE());
mrb_define_method(mrb, request_class, "path=", request_set_path,
MRB_ARGS_REQ(1));
mrb_define_method(mrb, request_class, "headers", request_get_headers,
MRB_ARGS_NONE());
mrb_define_method(mrb, request_class, "add_header", request_add_header,
MRB_ARGS_REQ(2));
mrb_define_method(mrb, request_class, "set_header", request_set_header,
MRB_ARGS_REQ(2));
mrb_define_method(mrb, request_class, "clear_headers", request_clear_headers,
MRB_ARGS_NONE());
mrb_define_method(mrb, request_class, "push", request_push, MRB_ARGS_REQ(1));
}
} // namespace mruby
} // namespace shrpx