Some initial work on the parser.

This commit is contained in:
Relintai 2022-06-30 23:12:32 +02:00
parent ddf3dae42b
commit 08bb253a5c
5 changed files with 106 additions and 18 deletions

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@ -1,6 +1,41 @@
#include "http_parser.h"
#include "web_server_request.h"
Ref<WebServerRequest> HTTPParser::get_request() {
return _request;
}
void HTTPParser::set_request(const Ref<WebServerRequest> &val) {
_request = val;
}
bool HTTPParser::is_ready() const {
return _is_ready;
}
void HTTPParser::reset() {
_partial_data = "";
_is_ready = false;
}
//returns the index where processing was ended -> start of the next query if != data_length
int HTTPParser::read_from_buffer(const char *p_buffer, const int p_data_length) {
ERR_FAIL_COND_V(!_request.is_valid(), p_data_length);
int current_buffer_index = 0;
_partial_data.resize(p_data_length - current_buffer_index);
CharType *pdp = _partial_data.ptrw();
for (int i = 0; i < current_buffer_index; ++i) {
pdp[i] = p_buffer[i + current_buffer_index];
}
return current_buffer_index;
}
HTTPParser::HTTPParser() {
_is_ready = false;
}
HTTPParser::~HTTPParser() {

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@ -1,15 +1,37 @@
#ifndef HTTP_PARSER_H
#define HTTP_PARSER_H
#include "core/ustring.h"
#include "core/reference.h"
class WebServerRequest;
class HTTPParser : public Reference {
GDCLASS(HTTPParser, Reference);
public:
Ref<WebServerRequest> get_request();
void set_request(const Ref<WebServerRequest> &val);
bool is_ready() const;
void reset();
//returns the index where processing was ended -> start of the next query if != data_length
int read_from_buffer(const char *p_buffer, const int p_data_length);
HTTPParser();
~HTTPParser();
protected:
static void _bind_methods();
String _partial_data;
Ref<WebServerRequest> _request;
bool _is_ready;
};
#endif

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@ -4,6 +4,8 @@
#include "core/reference.h"
class HTTPWriter : public Reference {
GDCLASS(HTTPWriter, Reference);
public:
HTTPWriter();
~HTTPWriter();

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@ -30,6 +30,9 @@
#include "http_server_simple.h"
#include "../http/http_parser.h"
#include "simple_web_server_request.h"
void HTTPServerSimple::stop() {
server->stop();
_clear_client();
@ -166,27 +169,48 @@ void HTTPServerSimple::poll() {
}
}
//char *r = (char *)req_buf;
//int l = req_pos - 1;
//if (l > 3 && r[l] == '\n' && r[l - 1] == '\r' && r[l - 2] == '\n' && r[l - 3] == '\r') {
// _send_response();
// _clear_client();
// return;
// }
int read = 0;
Error err = peer->get_partial_data(req_buf, 4096, read);
if (err != OK) {
// Got an error
_clear_client();
return;
}
if (read == 0) {
// Busy, wait next poll
return;
}
int buffer_start_index = 0;
while (true) {
char *r = (char *)req_buf;
int l = req_pos - 1;
if (l > 3 && r[l] == '\n' && r[l - 1] == '\r' && r[l - 2] == '\n' && r[l - 3] == '\r') {
_send_response();
_clear_client();
return;
char *rb = reinterpret_cast<char *>(&req_buf[buffer_start_index]);
buffer_start_index = _http_parser->read_from_buffer(rb, read);
if (_http_parser->is_ready()) {
Ref<SimpleWebServerRequest> req;
req = _http_parser->get_request();
//handle request
req.instance();
_http_parser->set_request(req);
_http_parser->reset();
}
int read = 0;
ERR_FAIL_COND(req_pos >= 4096);
Error err = peer->get_partial_data(&req_buf[req_pos], 1, read);
if (err != OK) {
// Got an error
_clear_client();
return;
} else if (read != 1) {
// Busy, wait next poll
if (buffer_start_index == read) {
return;
}
req_pos += read;
}
}
@ -199,6 +223,10 @@ HTTPServerSimple::HTTPServerSimple() {
mimes["svg"] = "image/svg";
mimes["wasm"] = "application/wasm";
server.instance();
_http_parser.instance();
Ref<SimpleWebServerRequest> req;
req.instance();
_http_parser->set_request(req);
stop();
}
@ -208,7 +236,6 @@ void HTTPServerSimple::_clear_client() {
tcp = Ref<StreamPeerTCP>();
memset(req_buf, 0, sizeof(req_buf));
time = 0;
req_pos = 0;
}
void HTTPServerSimple::_set_internal_certs(Ref<Crypto> p_crypto) {

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@ -37,6 +37,8 @@
#include "core/project_settings.h"
class HTTPParser;
class HTTPServerSimple : public Reference {
public:
void stop();
@ -56,10 +58,10 @@ private:
Ref<StreamPeer> peer;
Ref<CryptoKey> key;
Ref<X509Certificate> cert;
Ref<HTTPParser> _http_parser;
bool use_ssl = false;
uint64_t time = 0;
uint8_t req_buf[4096];
int req_pos = 0;
void _clear_client();
void _set_internal_certs(Ref<Crypto> p_crypto);