mirror of
https://github.com/reactos/reactos.git
synced 2024-08-31 07:38:48 +00:00
521 lines
12 KiB
C++
521 lines
12 KiB
C++
/*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS test application
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* FILE: apps/net/netreg/netreg.cpp
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* PURPOSE: HTTP Registry Server
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* PROGRAMMERS: Art Yerkes (arty@users.sf.net)
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* REVISIONS:
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* 01-17-2005 arty -- initial
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*/
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#include <windows.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <map>
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#include <string>
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#include <sstream>
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#include <iomanip>
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using std::hex;
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using std::setw;
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using std::setfill;
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using std::map;
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using std::string;
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using std::ostringstream;
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const char *root_entries[] = {
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"HKEY_LOCAL_MACHINE",
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"HKEY_CURRENT_USER",
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"HKEY_CLASSES_ROOT",
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"HKEY_CURRENT_CONFIG",
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"HKEY_USERS",
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0
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};
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const HKEY root_handles[] = {
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HKEY_LOCAL_MACHINE,
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HKEY_CURRENT_USER,
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HKEY_CLASSES_ROOT,
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HKEY_CURRENT_CONFIG,
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HKEY_USERS
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};
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class RequestHandler {
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public:
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RequestHandler( SOCKET s ) : socket( s ), state( NO_REQUEST_YET ) {}
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~RequestHandler() { closesocket( socket ); }
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void RecvData( string input ) {
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full_input += input;
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if( full_input.find( "\r\n\r\n" ) != string::npos ) {
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// Full request received...
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size_t space_pos = full_input.find( ' ' );
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if( space_pos == string::npos ) { state = SHOULD_DIE; return; }
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string method = full_input.substr( 0, space_pos );
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if( method != "GET" ) { state = SHOULD_DIE; return; }
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space_pos++;
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if( full_input[space_pos] != '/' ) { state = SHOULD_DIE; return; }
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space_pos++;
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string reg_key_and_remainder =
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full_input.substr( space_pos, full_input.size() - space_pos );
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space_pos = reg_key_and_remainder.find( ' ' );
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if( space_pos == string::npos ) { state = SHOULD_DIE; return; }
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string reg_key_name = reg_key_and_remainder.substr( 0, space_pos );
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process_request( urldec( reg_key_name ) );
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state = REQUEST_RECVD_SENDING_REPLY;
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}
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}
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void OkToSend() {
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int rv = send( socket,
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remaining_output.c_str(),
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remaining_output.size(), 0 );
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if( rv < 0 ) {
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state = SHOULD_DIE;
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return;
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} else {
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remaining_output =
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remaining_output.substr( rv, remaining_output.size() - rv );
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if( remaining_output.size() == 0 ) {
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state = SHOULD_DIE;
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}
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}
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}
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SOCKET GetSocket() const { return socket; }
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bool ShouldDie() const {
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return state == SHOULD_DIE;
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}
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bool WantPollout() const {
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return state == REQUEST_RECVD_SENDING_REPLY;
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}
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private:
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string urlenc( string in ) {
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ostringstream out;
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for( string::iterator i = in.begin();
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i != in.end();
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i++ ) {
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if( isalnum( *i ) || *i == '/' )
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out << *i;
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else {
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char minibuf[10];
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sprintf( minibuf, "%02x", *i );
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out << "%" << minibuf;
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}
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}
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return out.str();
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}
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string urldec( string in ) {
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string out;
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for( string::iterator i = in.begin();
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i != in.end();
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i++ ) {
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if( *i == '%' ) {
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char buf[3];
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int res = ' ';
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i++;
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if( i != in.end() ) {
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buf[0] = *i;
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i++;
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if( i != in.end() ) {
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buf[1] = *i;
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buf[2] = 0;
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sscanf( buf, "%x", &res );
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fprintf( stderr, "Interpreting %c%c as %02x\n",
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buf[0], buf[1],
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res );
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out += (char)res;
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}
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}
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} else out += *i;
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}
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return out;
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}
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string dump_one_line( const char *data, int llen, int len, int addr ) {
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ostringstream out;
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int i;
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out << setw( 8 ) << setfill( '0' ) << hex << addr << ": ";
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for( i = 0; i < llen; i++ ) {
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if( i < len ) out << setw( 2 ) << setfill( '0' ) << hex <<
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(data[i] & 0xff) << " ";
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else out << " ";
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}
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out << " : ";
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for( i = 0; i < llen; i++ ) {
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if( i < len && i < llen &&
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data[i] >= ' ' && data[i] < 0x7f ) out << data[i]; else out << '.';
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}
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out << "\n";
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return out.str();
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}
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string bindump( const char *data, int len ) {
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const char *end = data + len;
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string out;
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int addr = 0;
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out += "<pre>";
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while( data < end ) {
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out += dump_one_line( data, 16, end - data, addr );
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addr += 16;
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data += 16;
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}
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out += "</pre>";
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return out;
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}
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string present_value( DWORD type, const char *data, DWORD len ) {
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switch( type ) {
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default:
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return bindump( data, len );
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}
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}
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void process_valid_request( HKEY open_reg_key, string key_name ) {
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size_t ending_slash;
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string up_level;
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ostringstream text_out;
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DWORD num_sub_keys;
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DWORD max_subkey_len;
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DWORD num_values;
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DWORD max_value_name_len;
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DWORD max_value_len;
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char *value_name_buf;
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char *value_buf;
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char *key_name_buf;
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if( RegQueryInfoKey( open_reg_key,
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NULL,
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NULL,
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NULL,
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&num_sub_keys,
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&max_subkey_len,
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NULL,
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&num_values,
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&max_value_name_len,
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&max_value_len,
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NULL,
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NULL ) != ERROR_SUCCESS ) {
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process_invalid_request( key_name );
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return;
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}
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value_name_buf = new char [max_value_name_len+1];
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value_buf = new char [max_value_len+1];
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key_name_buf = new char [max_subkey_len+1];
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ending_slash = key_name.rfind( '/' );
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if( ending_slash != string::npos )
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up_level = key_name.substr( 0, ending_slash );
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text_out << "HTTP/1.0 200 OK\r\n"
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<< "Content-Type: text/html\r\n"
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<< "\r\n"
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<< "<html><head><title>Registry Key `"
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<< key_name
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<< "'</title></head><body>\r\n"
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<< "<h1>Registry Key `" << key_name << "'</h1>\r\n"
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<< "<a href='/" << urlenc(up_level)
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<< "'>(Up one level)</a><p>\r\n"
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<< "<h2>Subkeys:</h2><table border='1'>\r\n";
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DWORD which_index;
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DWORD key_name_size;
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for( which_index = 0; which_index < num_sub_keys; which_index++ ) {
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key_name_size = max_subkey_len+1;
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RegEnumKeyEx( open_reg_key,
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which_index,
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key_name_buf,
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&key_name_size,
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NULL,
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NULL,
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NULL,
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NULL );
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text_out << "<tr><td><a href='/" << urlenc(key_name) << "/"
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<< urlenc(string(key_name_buf,key_name_size)) << "'>"
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<< string(key_name_buf,key_name_size)
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<< "</a></td></tr>\r\n";
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}
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text_out << "</table><h2>Values:</h2><table border='1'>\r\n";
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DWORD value_name_size;
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DWORD value_data_size;
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DWORD value_type;
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for( which_index = 0; which_index < num_values; which_index++ ) {
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value_name_size = max_value_name_len+1;
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value_data_size = max_value_len+1;
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RegEnumValue( open_reg_key,
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which_index,
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value_name_buf,
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&value_name_size,
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NULL,
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&value_type,
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(BYTE *)value_buf,
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&value_data_size );
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text_out << "<tr><td><b>" << string(value_name_buf,value_name_size)
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<< "</b></td><td>"
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<< present_value( value_type, value_buf, value_data_size )
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<< "</td></tr>";
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}
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text_out << "</ul></body></html>\r\n";
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delete [] key_name_buf;
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delete [] value_name_buf;
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delete [] value_buf;
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remaining_output = text_out.str();
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}
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void process_invalid_request( string reg_key ) {
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ostringstream text_out;
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text_out << "HTTP/1.0 404 Not Found\r\n"
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<< "Content-Type: text/html\r\n"
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<< "\r\n"
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<< "<html><head><title>Can't find registry key `"
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<< reg_key
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<< "'</title></head><body>\r\n"
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<< "<H1>Can't find registry key `"
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<< reg_key
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<< "'</H1>\r\n"
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<< "The registry key doesn't exist in the local registry.\r\n"
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<< "</body></html>\r\n";
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remaining_output = text_out.str();
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}
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void process_root_request() {
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ostringstream text_out;
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int i;
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text_out << "HTTP/1.0 200 OK\r\n"
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<< "Content-Type: text/html\r\n"
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<< "\r\n"
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<< "<html><head><title>Registry Browser</title></head>\r\n"
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<< "<body>\r\n"
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<< "<H1>Registry Browser</H1>"
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<< "You can use this interface to browse the registry."
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<< "You will be presented with one registry key at a time and "
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<< "the decendents.\r\n"
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<< "<h2>Root Level</h2>\r\n"
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<< "Subkeys:<ul>\r\n";
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for( i = 0; root_entries[i]; i++ )
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text_out << "<li>"
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<< "<a href='/" << urlenc(root_entries[i])
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<< "'>" << root_entries[i]
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<< "</a></li>\r\n";
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text_out << "</ul></body></html>\r\n";
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remaining_output = text_out.str();
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}
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void process_request( string reg_key ) {
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int i;
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bool is_predefined_key = true;
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if( reg_key == "" ) { process_root_request(); return; }
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HKEY hRegKey = 0;
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// Parse the key name...
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size_t slash = reg_key.find( '/' );
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string reg_initial = "";
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if( slash == string::npos ) // A root key...
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reg_initial = reg_key;
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else // Any other key
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reg_initial = reg_key.substr( 0, slash );
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fprintf( stderr, "reg_init = %s, reg_key = %s\n",
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reg_initial.c_str(),
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reg_key.c_str() );
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for( i = 0; root_entries[i]; i++ )
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if( reg_initial == root_entries[i] ) hRegKey = root_handles[i];
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if( hRegKey != 0 && reg_initial != reg_key ) {
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size_t start_of_reg_path = reg_initial.size() + 1;
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string reg_path = reg_key.substr( start_of_reg_path,
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reg_key.size() - start_of_reg_path );
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string reg_open_path = reg_path;
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do {
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slash = reg_open_path.find( '/' );
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string reg_single_key = reg_open_path;
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if( slash != string::npos ) {
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reg_single_key = reg_open_path.substr( 0, slash );
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reg_open_path = reg_open_path.substr( slash+1,
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reg_open_path.size() );
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}
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HKEY oldKey = hRegKey;
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fprintf( stderr, "Opening %s\n", reg_single_key.c_str() );
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if( RegOpenKey( hRegKey, reg_single_key.c_str(), &hRegKey ) !=
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ERROR_SUCCESS ) {
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hRegKey = 0;
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break;
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} else RegCloseKey( oldKey );
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is_predefined_key = false;
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} while( slash != string::npos );
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}
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if( hRegKey == 0 ) process_invalid_request( reg_key );
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else {
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process_valid_request( hRegKey, reg_key );
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if( !is_predefined_key ) RegCloseKey( hRegKey );
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}
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}
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typedef enum _RHState {
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NO_REQUEST_YET,
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REQUEST_RECVD_SENDING_REPLY,
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SHOULD_DIE
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} RHState;
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string full_input;
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string remaining_output;
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SOCKET socket;
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RHState state;
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};
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SOCKET make_listening_socket( int port ) {
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struct sockaddr_in sa;
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ZeroMemory( &sa, sizeof( sa ) );
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sa.sin_family = PF_INET;
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sa.sin_port = ntohs( port );
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fprintf( stderr, "Creating the listener\n" );
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SOCKET l = socket( PF_INET, SOCK_STREAM, 0 );
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fprintf( stderr, "Socket %x\n", l );
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if( l == INVALID_SOCKET ) return l;
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if( bind( l, (struct sockaddr *)&sa, sizeof( sa ) ) < 0 ) {
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fprintf( stderr, "Bad response from bind: %d\n", WSAGetLastError() );
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closesocket( l ); return INVALID_SOCKET;
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}
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if( listen( l, 5 ) < 0 ) {
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fprintf( stderr, "Listening: %d\n", WSAGetLastError() );
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closesocket( l );
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return INVALID_SOCKET;
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}
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return l;
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}
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int main( int argc, char **argv ) {
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WSADATA wdWinsockData;
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map<SOCKET,RequestHandler *> requests;
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fd_set pollin,pollout,pollerr;
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SOCKET listen_socket;
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int i;
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int port_to_listen = 80;
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unsigned int active_fds = 0;
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for( i = 1; i < argc; i++ ) {
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if( string( "-p" ) == argv[i] ) {
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i++;
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if( i < argc ) port_to_listen = atoi( argv[i] );
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}
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}
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WSAStartup( 0x0101, &wdWinsockData );
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listen_socket = make_listening_socket( port_to_listen );
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if( listen_socket == INVALID_SOCKET ) return 1;
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while( true ) {
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FD_ZERO( &pollin );
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FD_ZERO( &pollout );
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FD_ZERO( &pollerr );
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active_fds = listen_socket + 1;
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for( std::map<SOCKET,RequestHandler *>::iterator i = requests.begin();
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i != requests.end();
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i++ ) {
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if( i->second->ShouldDie() ) {
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delete i->second;
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requests.erase( i );
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i = requests.begin();
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break;
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}
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FD_SET(i->first,&pollin);
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FD_SET(i->first,&pollerr);
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if( i->first > active_fds ) active_fds = i->first + 1;
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if( i->second->WantPollout() ) FD_SET(i->first,&pollout);
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}
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FD_SET(listen_socket,&pollin);
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active_fds = select( active_fds, &pollin, &pollout, &pollerr, NULL );
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if( active_fds > 0 ) {
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if( FD_ISSET(listen_socket,&pollin) ) {
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SOCKET ns = accept( listen_socket, NULL, NULL );
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if( ns != INVALID_SOCKET ) {
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requests.insert( std::make_pair( ns, new RequestHandler( ns ) ) );
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}
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}
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for( std::map<SOCKET,RequestHandler *>::iterator i = requests.begin();
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i != requests.end();
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i++ ) {
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if( FD_ISSET(i->first,&pollin) ) {
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char inbuf[1024];
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int rv = recv(i->first,inbuf,1024,0);
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if( rv < 0 ) {
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delete i->second;
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requests.erase( i );
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i = requests.begin();
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break;
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} else i->second->RecvData( string( inbuf, rv ) );
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}
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if( FD_ISSET(i->first,&pollout) ) {
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i->second->OkToSend();
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}
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if( FD_ISSET(i->first,&pollerr) ) {
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delete i->second;
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requests.erase( i );
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i = requests.begin();
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break;
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}
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}
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}
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}
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WSACleanup();
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}
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