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parser.cc
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#line 1 "parser.rl"
/*
* Copyright (c) 2008-2011, Adrian Thurston <[email protected]>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include "dsnp.h"
#include "string.h"
#include "error.h"
#include "encrypt.h"
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/time.h>
#include <sys/types.h>
#include <unistd.h>
#define MAX_MSG_LEN 16384
#include <unistd.h>
#include <fcntl.h>
/* FIXME: check all scanned lengths for overflow. */
/* Need this for the time being. */
u_char *writeExact( u_char *dest, const String &s )
{
memcpy( dest, s(), s.length );
dest += s.length;
return dest;
}
/*
* Identity::parse()
*/
#line 55 "parser.cc"
static const int identity_start = 1;
static const int identity_first_final = 10;
static const int identity_error = 0;
static const int identity_en_main = 1;
#line 54 "parser.rl"
long Identity::parse()
{
const u_char *p = (u_char*)iduri.data;
const u_char *pe = p + iduri.length;
const u_char *h1, *h2;
/* Parser for response. */
#line 69 "parser.rl"
long result = 0, cs;
#line 81 "parser.cc"
{
cs = identity_start;
}
#line 74 "parser.rl"
#line 88 "parser.cc"
{
if ( p == pe )
goto _test_eof;
switch ( cs )
{
case 1:
if ( (*p) == 100u )
goto st2;
goto st0;
st0:
cs = 0;
goto _out;
st2:
if ( ++p == pe )
goto _test_eof2;
case 2:
if ( (*p) == 115u )
goto st3;
goto st0;
st3:
if ( ++p == pe )
goto _test_eof3;
case 3:
if ( (*p) == 110u )
goto st4;
goto st0;
st4:
if ( ++p == pe )
goto _test_eof4;
case 4:
if ( (*p) == 112u )
goto st5;
goto st0;
st5:
if ( ++p == pe )
goto _test_eof5;
case 5:
if ( (*p) == 58u )
goto st6;
goto st0;
st6:
if ( ++p == pe )
goto _test_eof6;
case 6:
if ( (*p) == 47u )
goto st7;
goto st0;
st7:
if ( ++p == pe )
goto _test_eof7;
case 7:
if ( (*p) == 47u )
goto st8;
goto st0;
st8:
if ( ++p == pe )
goto _test_eof8;
case 8:
if ( (*p) > 46u ) {
if ( 48u <= (*p) && (*p) <= 126u )
goto tr8;
} else if ( (*p) >= 33u )
goto tr8;
goto st0;
tr8:
#line 68 "parser.rl"
{h1=p;}
goto st9;
st9:
if ( ++p == pe )
goto _test_eof9;
case 9:
#line 161 "parser.cc"
if ( (*p) == 47u )
goto tr10;
if ( 33u <= (*p) && (*p) <= 126u )
goto st9;
goto st0;
tr10:
#line 68 "parser.rl"
{h2=p;}
goto st10;
st10:
if ( ++p == pe )
goto _test_eof10;
case 10:
#line 175 "parser.cc"
if ( (*p) > 46u ) {
if ( 48u <= (*p) && (*p) <= 126u )
goto st11;
} else if ( (*p) >= 33u )
goto st11;
goto st0;
st11:
if ( ++p == pe )
goto _test_eof11;
case 11:
if ( (*p) == 47u )
goto st10;
if ( 33u <= (*p) && (*p) <= 126u )
goto st11;
goto st0;
}
_test_eof2: cs = 2; goto _test_eof;
_test_eof3: cs = 3; goto _test_eof;
_test_eof4: cs = 4; goto _test_eof;
_test_eof5: cs = 5; goto _test_eof;
_test_eof6: cs = 6; goto _test_eof;
_test_eof7: cs = 7; goto _test_eof;
_test_eof8: cs = 8; goto _test_eof;
_test_eof9: cs = 9; goto _test_eof;
_test_eof10: cs = 10; goto _test_eof;
_test_eof11: cs = 11; goto _test_eof;
_test_eof: {}
_out: {}
}
#line 75 "parser.rl"
/* Did parsing succeed? */
if ( cs <
#line 211 "parser.cc"
10
#line 77 "parser.rl"
)
throw ParseError( __FILE__, __LINE__ );
_host.set( (const char*)h1, (const char*)h2 );
/* We can use the start of the last path part to get the site. */
parsed = true;
return result;
}
/*
* Server Loop
*/
#line 201 "parser.rl"
#define CMD_PUBLIC_KEY 50
#define CMD_FETCH_REQUESTED_RELID 51
#define CMD_FETCH_RESPONSE_RELID 52
#define CMD_FETCH_FTOKEN 53
#define CMD_MESSAGE 54
#define CMD_FOF_MESSAGE 55
#define CMD_BROADCAST_RECIPIENT 56
#define CMD_BROADCAST 57
Allocated consPublicKey( const String &user )
{
long length = 1 +
stringLength( user );
String packet( length );
u_char *dest = (u_char*)packet.data;
dest = writeType( dest, CMD_PUBLIC_KEY );
dest = writeString( dest, user );
return packet.relinquish();
}
Allocated consFetchRequestedRelid( const String &reqid )
{
long length = 1 +
stringLength( reqid );
String packet( length );
u_char *dest = (u_char*)packet.data;
dest = writeType( dest, CMD_FETCH_REQUESTED_RELID );
dest = writeString( dest, reqid );
return packet.relinquish();
}
Allocated consFetchResponseRelid( const String &reqid )
{
long length = 1 +
stringLength( reqid );
String packet( length );
u_char *dest = (u_char*)packet.data;
dest = writeType( dest, CMD_FETCH_RESPONSE_RELID );
dest = writeString( dest, reqid );
return packet.relinquish();
}
Allocated consFetchFtoken( const String &reqid )
{
long length = 1 +
stringLength( reqid );
String packet( length );
u_char *dest = (u_char*)packet.data;
dest = writeType( dest, CMD_FETCH_FTOKEN );
dest = writeString( dest, reqid );
return packet.relinquish();
}
Allocated consMessage( const String &relid, const String &msg )
{
long length = 1 +
stringLength( relid ) +
binLength( msg );
String packet( length );
u_char *dest = (u_char*)packet.data;
dest = writeType( dest, CMD_MESSAGE );
dest = writeString( dest, relid );
dest = writeBin( dest, msg );
return packet.relinquish();
}
Allocated consFofMessage( const String &relid, const String &msg )
{
long length = 1 +
stringLength( relid ) +
binLength( msg );
message( "CONSING relid: %s\n", relid() );
String packet( length );
u_char *dest = (u_char*)packet.data;
dest = writeType( dest, CMD_FOF_MESSAGE );
dest = writeString( dest, relid );
dest = writeBin( dest, msg );
return packet.relinquish();
}
Allocated consBroadcastRecipient( const String &relid )
{
long length = 1 +
stringLength( relid );
String packet( length );
u_char *dest = (u_char*)packet.data;
dest = writeType( dest, CMD_BROADCAST_RECIPIENT );
dest = writeString( dest, relid );
return packet.relinquish();
}
Allocated consBroadcast( const String &network, long long keyGen,
const String &msg )
{
long length = 1 +
stringLength( network ) +
sixtyFourBitLength() +
binLength( msg );
String packet( length );
u_char *dest = (u_char*)packet.data;
dest = writeType( dest, CMD_BROADCAST );
dest = writeString( dest, network );
dest = write64Bit( dest, keyGen );
dest = writeBin( dest, msg );
return packet.relinquish();
}
#line 429 "parser.rl"
#line 369 "parser.cc"
static const int server_loop_start = 1;
static const int server_loop_first_final = 372;
static const int server_loop_error = 0;
static const int server_loop_en_commands_local = 373;
static const int server_loop_en_commands_tls = 374;
static const int server_loop_en_main = 1;
#line 432 "parser.rl"
ServerParser::ServerParser( Server *server )
:
retVal(0),
mysql(0),
tls(false),
exit(false),
versions(0),
server(server)
{
#line 392 "parser.cc"
{
cs = server_loop_start;
}
#line 444 "parser.rl"
}
Parser::Control ServerParser::data( const char *data, int dlen )
{
const unsigned char *p = (u_char*)data;
const unsigned char *pe = (u_char*)data + dlen;
#line 406 "parser.cc"
{
short _widec;
if ( p == pe )
goto _test_eof;
switch ( cs )
{
case 1:
if ( (*p) == 68u )
goto st2;
goto st0;
st0:
cs = 0;
goto _out;
st2:
if ( ++p == pe )
goto _test_eof2;
case 2:
if ( (*p) == 83u )
goto st3;
goto st0;
st3:
if ( ++p == pe )
goto _test_eof3;
case 3:
if ( (*p) == 78u )
goto st4;
goto st0;
st4:
if ( ++p == pe )
goto _test_eof4;
case 4:
if ( (*p) == 80u )
goto st5;
goto st0;
st5:
if ( ++p == pe )
goto _test_eof5;
case 5:
if ( (*p) == 32u )
goto st6;
goto st0;
tr15:
#line 29 "common.rl"
{
v = VERSION_MASK_0_1;
}
#line 63 "common.rl"
{
if ( versions & v )
throw VersionAlreadyGiven();
versions |= v;
}
goto st6;
tr42:
#line 34 "common.rl"
{
v = VERSION_MASK_0_2;
}
#line 63 "common.rl"
{
if ( versions & v )
throw VersionAlreadyGiven();
versions |= v;
}
goto st6;
tr44:
#line 39 "common.rl"
{
v = VERSION_MASK_0_3;
}
#line 63 "common.rl"
{
if ( versions & v )
throw VersionAlreadyGiven();
versions |= v;
}
goto st6;
tr46:
#line 44 "common.rl"
{
v = VERSION_MASK_0_4;
}
#line 63 "common.rl"
{
if ( versions & v )
throw VersionAlreadyGiven();
versions |= v;
}
goto st6;
tr48:
#line 49 "common.rl"
{
v = VERSION_MASK_0_5;
}
#line 63 "common.rl"
{
if ( versions & v )
throw VersionAlreadyGiven();
versions |= v;
}
goto st6;
tr50:
#line 54 "common.rl"
{
v = VERSION_MASK_0_6;
}
#line 63 "common.rl"
{
if ( versions & v )
throw VersionAlreadyGiven();
versions |= v;
}
goto st6;
st6:
if ( ++p == pe )
goto _test_eof6;
case 6:
#line 530 "parser.cc"
if ( (*p) == 48u )
goto st7;
goto st0;
st7:
if ( ++p == pe )
goto _test_eof7;
case 7:
if ( (*p) == 46u )
goto st8;
goto st0;
st8:
if ( ++p == pe )
goto _test_eof8;
case 8:
switch( (*p) ) {
case 49u: goto st9;
case 50u: goto st30;
case 51u: goto st31;
case 52u: goto st32;
case 53u: goto st33;
case 54u: goto st34;
}
goto st0;
st9:
if ( ++p == pe )
goto _test_eof9;
case 9:
switch( (*p) ) {
case 32u: goto tr14;
case 124u: goto tr15;
}
goto st0;
tr14:
#line 29 "common.rl"
{
v = VERSION_MASK_0_1;
}
#line 63 "common.rl"
{
if ( versions & v )
throw VersionAlreadyGiven();
versions |= v;
}
goto st10;
tr41:
#line 34 "common.rl"
{
v = VERSION_MASK_0_2;
}
#line 63 "common.rl"
{
if ( versions & v )
throw VersionAlreadyGiven();
versions |= v;
}
goto st10;
tr43:
#line 39 "common.rl"
{
v = VERSION_MASK_0_3;
}
#line 63 "common.rl"
{
if ( versions & v )
throw VersionAlreadyGiven();
versions |= v;
}
goto st10;
tr45:
#line 44 "common.rl"
{
v = VERSION_MASK_0_4;
}
#line 63 "common.rl"
{
if ( versions & v )
throw VersionAlreadyGiven();
versions |= v;
}
goto st10;
tr47:
#line 49 "common.rl"
{
v = VERSION_MASK_0_5;
}
#line 63 "common.rl"
{
if ( versions & v )
throw VersionAlreadyGiven();
versions |= v;
}
goto st10;
tr49:
#line 54 "common.rl"
{
v = VERSION_MASK_0_6;
}
#line 63 "common.rl"
{
if ( versions & v )
throw VersionAlreadyGiven();
versions |= v;
}
goto st10;
st10:
if ( ++p == pe )
goto _test_eof10;
case 10:
#line 645 "parser.cc"
switch( (*p) ) {
case 76u: goto st11;
case 83u: goto st19;
case 108u: goto st11;
case 115u: goto st19;
}
goto st0;
st11:
if ( ++p == pe )
goto _test_eof11;
case 11:
switch( (*p) ) {
case 79u: goto st12;
case 111u: goto st12;
}
goto st0;
st12:
if ( ++p == pe )
goto _test_eof12;
case 12:
switch( (*p) ) {
case 67u: goto st13;
case 99u: goto st13;
}
goto st0;
st13:
if ( ++p == pe )
goto _test_eof13;
case 13:
switch( (*p) ) {
case 65u: goto st14;
case 97u: goto st14;
}
goto st0;
st14:
if ( ++p == pe )
goto _test_eof14;
case 14:
switch( (*p) ) {
case 76u: goto st15;
case 108u: goto st15;
}
goto st0;
st15:
if ( ++p == pe )
goto _test_eof15;
case 15:
if ( (*p) == 32u )
goto st16;
goto st0;
st16:
if ( ++p == pe )
goto _test_eof16;
case 16:
switch( (*p) ) {
case 45u: goto tr23;
case 95u: goto tr23;
}
if ( (*p) < 65u ) {
if ( 48u <= (*p) && (*p) <= 57u )
goto tr23;
} else if ( (*p) > 90u ) {
if ( 97u <= (*p) && (*p) <= 122u )
goto tr23;
} else
goto tr23;
goto st0;
tr23:
#line 22 "common.rl"
{ buf.clear(); }
#line 23 "common.rl"
{ buf.append((*p)); }
goto st17;
tr26:
#line 23 "common.rl"
{ buf.append((*p)); }
goto st17;
st17:
if ( ++p == pe )
goto _test_eof17;
case 17:
#line 727 "parser.cc"
switch( (*p) ) {
case 10u: goto tr24;
case 13u: goto tr25;
case 45u: goto tr26;
case 95u: goto tr26;
}
if ( (*p) < 65u ) {
if ( 48u <= (*p) && (*p) <= 57u )
goto tr26;
} else if ( (*p) > 90u ) {
if ( 97u <= (*p) && (*p) <= 122u )
goto tr26;
} else
goto tr26;
goto st0;
tr24:
#line 74 "common.rl"
{ key.set(buf); }
#line 422 "parser.rl"
{
server->negotiation( versions, tls, host, key );
if ( !tls )
{goto st373;}
else
{goto st374;}
}
goto st372;
tr27:
#line 422 "parser.rl"
{
server->negotiation( versions, tls, host, key );
if ( !tls )
{goto st373;}
else
{goto st374;}
}
goto st372;
tr38:
#line 110 "common.rl"
{ host.set(buf); }
#line 416 "parser.rl"
{ tls = true; }
#line 422 "parser.rl"
{
server->negotiation( versions, tls, host, key );
if ( !tls )
{goto st373;}
else
{goto st374;}
}
goto st372;
st372:
if ( ++p == pe )
goto _test_eof372;
case 372:
#line 783 "parser.cc"
goto st0;
tr25:
#line 74 "common.rl"
{ key.set(buf); }
goto st18;
tr39:
#line 110 "common.rl"
{ host.set(buf); }
#line 416 "parser.rl"
{ tls = true; }
goto st18;
st18:
if ( ++p == pe )
goto _test_eof18;
case 18:
#line 799 "parser.cc"
if ( (*p) == 10u )
goto tr27;
goto st0;
st19:
if ( ++p == pe )
goto _test_eof19;
case 19:
switch( (*p) ) {
case 84u: goto st20;
case 116u: goto st20;
}
goto st0;
st20:
if ( ++p == pe )
goto _test_eof20;
case 20:
switch( (*p) ) {
case 65u: goto st21;
case 97u: goto st21;
}
goto st0;
st21:
if ( ++p == pe )
goto _test_eof21;
case 21:
switch( (*p) ) {
case 82u: goto st22;
case 114u: goto st22;
}
goto st0;
st22:
if ( ++p == pe )
goto _test_eof22;
case 22:
switch( (*p) ) {
case 84u: goto st23;
case 116u: goto st23;
}
goto st0;
st23:
if ( ++p == pe )
goto _test_eof23;
case 23:
if ( (*p) == 95u )
goto st24;
goto st0;
st24:
if ( ++p == pe )
goto _test_eof24;
case 24:
switch( (*p) ) {
case 84u: goto st25;
case 116u: goto st25;
}
goto st0;
st25:
if ( ++p == pe )
goto _test_eof25;
case 25:
switch( (*p) ) {
case 76u: goto st26;
case 108u: goto st26;
}
goto st0;
st26:
if ( ++p == pe )
goto _test_eof26;
case 26:
switch( (*p) ) {
case 83u: goto st27;
case 115u: goto st27;
}
goto st0;
st27:
if ( ++p == pe )
goto _test_eof27;
case 27:
if ( (*p) == 32u )
goto st28;
goto st0;
st28:
if ( ++p == pe )
goto _test_eof28;
case 28:
if ( (*p) > 46u ) {
if ( 48u <= (*p) && (*p) <= 126u )
goto tr37;
} else if ( (*p) >= 33u )
goto tr37;
goto st0;
tr37:
#line 22 "common.rl"
{ buf.clear(); }
#line 23 "common.rl"
{ buf.append((*p)); }
goto st29;
tr40:
#line 23 "common.rl"
{ buf.append((*p)); }
goto st29;
st29:
if ( ++p == pe )
goto _test_eof29;
case 29:
#line 904 "parser.cc"
switch( (*p) ) {
case 10u: goto tr38;
case 13u: goto tr39;
}
if ( (*p) > 46u ) {
if ( 48u <= (*p) && (*p) <= 126u )
goto tr40;
} else if ( (*p) >= 33u )
goto tr40;
goto st0;
st30:
if ( ++p == pe )
goto _test_eof30;
case 30:
switch( (*p) ) {
case 32u: goto tr41;
case 124u: goto tr42;
}
goto st0;
st31:
if ( ++p == pe )
goto _test_eof31;
case 31:
switch( (*p) ) {
case 32u: goto tr43;
case 124u: goto tr44;
}
goto st0;
st32:
if ( ++p == pe )
goto _test_eof32;
case 32:
switch( (*p) ) {
case 32u: goto tr45;
case 124u: goto tr46;
}
goto st0;
st33:
if ( ++p == pe )
goto _test_eof33;
case 33:
switch( (*p) ) {
case 32u: goto tr47;
case 124u: goto tr48;
}
goto st0;
st34:
if ( ++p == pe )
goto _test_eof34;
case 34:
switch( (*p) ) {
case 32u: goto tr49;
case 124u: goto tr50;
}
goto st0;
tr68:
#line 72 "common.rl"
{ reqid.set(buf); }
#line 131 "parser.rl"
{
message( "command: accept_friend %s %s\n", loginToken(), reqid() );
server->acceptFriend( loginToken, reqid );
}
goto st373;
tr71:
#line 131 "parser.rl"
{
message( "command: accept_friend %s %s\n", loginToken(), reqid() );
server->acceptFriend( loginToken, reqid );
}
goto st373;
tr108:
#line 101 "common.rl"
{ iduri.set(buf); }
#line 122 "parser.rl"
{
message( "command: friend_final %s %s %s\n", user(), reqid(), iduri() );
server->friendFinal( user, reqid, iduri );
}
goto st373;
tr111:
#line 122 "parser.rl"
{
message( "command: friend_final %s %s %s\n", user(), reqid(), iduri() );
server->friendFinal( user, reqid, iduri );
}
goto st373;
tr138:
#line 73 "common.rl"
{ hash.set(buf); }
#line 140 "parser.rl"
{
message( "command: ftoken_request %s %s\n", user(), hash() );
server->ftokenRequest( user, hash );
}
goto st373;
tr141: