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Facebook.cpp
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Facebook.cpp
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#include "Facebook.h"
#include "HttpServer.h"
#include "sort.h"
#include "Repair.h"
// use this to get an access token for the event guru app
// https://graph.facebook.com/oauth/access_token?
// client_id=YOUR_APP_ID&client_secret=YOUR_APP_SECRET&
// grant_type=client_credentials
// use this to cache a facebook user's friends, and userid of themselves
Facebookdb g_facebookdb;
Likedb g_likedb;
static void queueSleepWrapper ( int fd, void *state );
bool base64Decode ( char *dst, char *src, int32_t dstSize ) ;
///////////////////////////
//
// FACEBOOKDB
//
///////////////////////////
void Facebookdb::reset() {
m_rdb.reset();
}
bool Facebookdb::init ( ) {
if ( ! g_conf.m_indexEventsOnly ) return true;
// load this here so calling saveQueryLoopState() does not overwrite it
loadQueryLoopState ();
// hit the queue
if ( ! g_loop.registerSleepCallback(500,NULL,queueSleepWrapper))
return false;
/*
char tmp[2048];
char *sr = "eyJhbGdvcml0aG0iOiJITUFDLVNIQTI1NiIsImV4cGlyZXMiOjEzMzA0NTkyMDAsImlzc3VlZF9hdCI6MTMzMDQ1Mjk3Miwib2F1dGhfdG9rZW4iOiJBQUFGRWczUUE1eWdCQUg1b3dJTEt6WkNaQ0FDNmNTUVRaQWVaQmE2WkFiT1J2dkllSzc2MktGWFg2RmxaQ29iZWFzcENzWE5BZGh1R2VMQm1VM1hnNmMyTm1JenhxRlZkQ3d1Z0ZLRzVHWkN6WXlWaUpwZkN4UlYiLCJ1c2VyIjp7ImNvdW50cnkiOiJ1cyIsImxvY2FsZSI6ImVuX1VTIiwiYWdlIjp7Im1pbiI6MjF9fSwidXNlcl9pZCI6IjEwMDAwMzUzMjQxMTAxMSJ9";
base64Decode ( tmp , sr , 2040 );
log("facebook: %s",tmp);
*/
// . what's max # of tree nodes?
// . assume avg facebookdb rec size of about 1000 bytes
// . NOTE: 32 bytes of the 1000 are overhead
int32_t maxMem = 5000000;
int32_t maxTreeNodes = maxMem / 1000;//82;
// each entry in the cache is usually just a single record, no lists,
// unless a hostname has multiple sites in it. has 24 bytes more
// overhead in cache.
//int32_t maxCacheNodes = g_conf.m_tagdbMaxCacheMem / 106;
// we now use a page cache for the banned turks table which
// gets hit all the time
//if(! m_pc.init ("facebookdb",RDB_TAGDB,10000000,GB_TFNDB_PAGE_SIZE))
// return log("facebookdb: Tagdb init failed.");
// initialize our own internal rdb
if ( ! m_rdb.init ( g_hostdb.m_dir ,
"facebookdb" ,
true , // dedup same keys?
-1 , // fixed record size
2,//g_conf.m_tagdbMinFilesToMerge ,
maxMem, // 5MB g_conf.m_tagdbMaxTreeMem ,
maxTreeNodes ,
// now we balance so Sync.cpp can ordered huge list
true , // balance tree?
0 , //g_conf.m_tagdbMaxCacheMem ,
0 , //maxCacheNodes ,
false , // half keys?
false , //m_tagdbSaveCache
NULL, // &m_pc ,
false, // is titledb
false, // preload disk page cache
sizeof(key96_t), // key size
false , // bias disk page cache?
true )) // iscollectionless? syncdb,facebookdb,...
return false;
// add the base since it is a collectionless rdb
return m_rdb.addColl ( NULL );
}
bool Facebookdb::addColl ( char *coll, bool doVerify ) {
if ( ! m_rdb.addColl ( coll ) ) return false;
return true;
}
///////////////////////
//
// MSGFB
//
///////////////////////
Msgfb::Msgfb ( ) {
m_facebookReply = NULL;
//m_facebookReply2 = NULL;
m_msg7 = NULL;
m_fbId = 0LL;
m_inProgress = false;
reset();
}
#include "Process.h"
void Msgfb::reset ( ) {
// this can happen if we try to save and exit while in progress
if ( g_process.m_mode != EXIT_MODE &&
m_inProgress ) { char *xx=NULL;*xx=0; }
m_requests = 0;
m_replies = 0;
m_errno = 0;
m_errorCount = 0;
m_fbId = 0;
m_state = NULL;
m_callback = NULL;
m_collnum = 0;
m_niceness = MAX_NICENESS;
m_socket = NULL;
m_retryCount = 0;
m_widgetId = 0;
m_userToUserWidgetId = 0LL;
//m_fbrec.reset();
if ( m_facebookReply ) {
mfree ( m_facebookReply , m_facebookAllocSize ,"msgfb");
m_facebookReply = NULL;
}
//if ( m_facebookReply2 ) {
// mfree ( m_facebookReply2 , m_facebookAllocSize2 ,"msgfb");
// m_facebookReply2 = NULL;
//}
m_rbuf.purge();
if ( m_msg7 ) {
mdelete ( m_msg7, sizeof(Msg7) , "FBInject" );
delete ( m_msg7);
m_msg7 = NULL;
}
m_list1.freeList();
m_list2.freeList();
m_list3.freeList();
m_hr.reset();// = NULL;
m_fbrecPtr = NULL;
m_likedbTable.reset();
m_evPtrBuf.purge();
m_evIdsBuf.purge();
m_fidBuf.purge();
m_eidBuf.purge();
m_dedupEidBuf.reset();
// free mem
m_fullReply.purge();
}
Msgfb::~Msgfb ( ) {
reset();
}
///////////////////////
//
// MSGFB PIPELINE #1
//
///////////////////////
static void gotFBUserRecWrapper ( void *state ) {
Msgfb *mfb = (Msgfb *)state;
if ( ! mfb->gotFBUserRec ( ) ) return;
mfb->m_callback ( mfb->m_state );
}
static void gotFBAccessTokenWrapper ( void *state , TcpSocket *s ) {
Msgfb *mfb = (Msgfb *)state;
if ( ! mfb->gotFBAccessToken( s ) ) return;
mfb->m_callback ( mfb->m_state );
}
// format like strncpy()
bool base64Decode ( char *dst, char *src, int32_t dstSize ) {
// make the map
static unsigned char s_bmap[256];
static bool s_init = false;
if ( ! s_init ) {
s_init = true;
memset ( s_bmap , 0 , 256 );
unsigned char val = 0;
for ( unsigned char c = 'A' ; c <= 'Z'; c++ )
s_bmap[c] = val++;
for ( unsigned char c = 'a' ; c <= 'z'; c++ )
s_bmap[c] = val++;
for ( unsigned char c = '0' ; c <= '9'; c++ )
s_bmap[c] = val++;
if ( val != 62 ) { char *xx=NULL;*xx=0; }
s_bmap['+'] = 62;
s_bmap['/'] = 63;
}
// leave room for \0
char *dstEnd = dst + dstSize - 5;
unsigned char *p = (unsigned char *)src;
unsigned char val;
for ( ; ; ) {
if ( *p ) {val = s_bmap[*p]; p++; } else val = 0;
// copy 6 bits
*dst <<= 6;
*dst |= val;
if ( *p ) {val = s_bmap[*p]; p++; } else val = 0;
// copy 2 bits
*dst <<= 2;
*dst |= (val>>4);
dst++;
// copy 4 bits
*dst = val & 0xf;
if ( *p ) {val = s_bmap[*p]; p++; } else val = 0;
// copy 4 bits
*dst <<= 4;
*dst |= (val>>2);
dst++;
// copy 2 bits
*dst = (val&0x3);
if ( *p ) {val = s_bmap[*p]; p++; } else val = 0;
// copy 6 bits
*dst <<= 6;
*dst |= val;
dst++;
// sanity
if ( dst >= dstEnd ) {
log("facebook: bas64decode breach");
//char *xx=NULL;*xx=0;
*dst = '\0';
return false;
}
if ( ! *p ) break;
}
// null term just in case
dst[1] = '\0';
return true;
}
bool Msgfb::getFacebookUserInfo ( HttpRequest *hr,
TcpSocket *s,
char *coll,
void *state ,
char *redirPath,
void (* callback)(void *state) ,
int32_t niceness ) {
reset();
m_state = state;
m_callback = callback;
//m_hr = hr;
m_oldFbrec = NULL;
m_redirPath = redirPath;
m_socket = s;
m_collnum = g_collectiondb.getCollnum ( coll );
m_retryCount = 0;
// they just logged out
if ( hr->getLong("logout",0 ) ) return true;
// need to make a copy of it so we can access it
m_hr.copy ( hr );
// save this
m_widgetId = hr->getLongLongFromCookie("widgetid",0LL);
// make the facebook key url for tagdb lookup
char *fbidStr = m_hr.getStringFromCookie("fbid",NULL);
// check for "usefbid"
char *useFbid = m_hr.getString("usefbid",NULL);
// that overrides
if ( useFbid ) {
int64_t used = strtoull(useFbid,NULL,10);
int32_t h32a = hash32 ( (char *)&used, 8 );
// this has to be a int64_t because fh is printed as
// an uint32_t and atol() will croak
int32_t h32b = m_hr.getLongLong("fh",0);
if ( h32a != h32b ) {
useFbid = NULL;
log("facebook: bad usefbid=%"INT64" h32=%"UINT32" fh=%"UINT32"",
used,h32a,h32b);
}
else
fbidStr = useFbid;
}
// they've logged in before if we got this cookie, otherwise,
// they got cookies off or they have not logged in ever yet, so
// we gotta ask facebook for the access token.
if ( ! fbidStr )
return downloadAccessToken ( );
// . make the facebook key url for facebook user rec
// . we are here because we are assuming they are already logged in
// at some point in time and we should try to get their list
// of friends from the facebookdb rec so if they click
// to show all the events their friends are going to we can do that
int64_t fbId = strtoull ( fbidStr , NULL, 10 );
// if they come into the canvas page we receive an encoded access
// token and fbid from facebook. so get that and do the lookup.
// if we do not have the username in the facebookdb rec or we do not
// even have a facebook id rec, then we will have to use cmd1 fql
// before they can be logged in.
char *sr = m_hr.getString("signed_request",NULL);
if ( sr ) sr = strchr(sr,'.');
if ( sr ) sr++;
// decode that
char dsr[2048];
if ( sr ) base64Decode ( dsr , sr , 2040 );
// parse that json for fb user id
char *jsonfbid = NULL;
if ( sr ) jsonfbid = strstr ( dsr , "user_id\":\"" );
if ( jsonfbid ) jsonfbid += 10;
if ( jsonfbid ) fbId = atoll(jsonfbid);
// sometimes there's also an access token, if that is the case
// we can just right to the cmd1 fql call downloadFBUserInfo().
char *at = NULL;
if ( dsr ) at = strstr ( dsr , "oauth_token\":\"" );
if ( at ) at += 14;
if ( at && fbId ) {
// copy into m_accessToken
char *p = at;
for ( ; *p && *p != '\"' && *p != ',' ; p++);
*p = '\0';
if ( p - at + 1 < MAX_TOKEN_LEN ) {
strcpy ( m_accessToken , at );
log("facebook: got access token from canvas app");
if ( ! downloadUserToUserRequestInfo() ) return false;
return downloadFBUserInfo();
}
}
// for the facebookdb lookup to be legit this must be non-zero
if ( fbId == 0LL )
return downloadAccessToken ( );
key96_t startKey;
key96_t endKey;
startKey.n1 = 0;
startKey.n0 = fbId;
endKey.n1 = 0;
endKey.n0 = fbId;
startKey.n0 <<= 1;
endKey.n0 <<= 1;
endKey.n0 |= 0x01;
if ( ! m_msg0.getList ( -1, // hostid
0 , // ip
0 , // port
0 , // maxcacheage
false, // addtocache
RDB_FACEBOOKDB,
"",//coll,
&m_list1,
(char *)&startKey,
(char *)&endKey,
10, // minrecsizes
this ,
gotFBUserRecWrapper,
niceness ) )
return false;
// i guess we got it without blocking
return gotFBUserRec();
}
bool Msgfb::gotFBUserRec ( ) {
// . it can be empty if never got saved!
// . or if they logged out then logged back in, fbid will be 0
if ( m_list1.getListSize() <= 0 ) return downloadAccessToken();
// cast the list
FBRec *fbrec = (FBRec *)m_list1.getList();
// save that ptr
m_fbrecPtr = fbrec;
// get timestamp on that
//int32_t now = getTimeGlobal();
//int32_t elapsed = now - fbrec->m_accessTokenCreated;
// if stale, re-get it all from facebook.
//if ( elapsed >= 60*60 ) return downloadAccessToken ( );
// if still fresh, don't bother hitting facebook again, but we
// need to deserialize
deserializeMsg ( sizeof(FBRec) ,
&fbrec->size_accessToken ,
&fbrec->size_friendIds ,
&fbrec->ptr_accessToken ,
fbrec->m_buf );
// need to set this for printBlackBar()
m_fbId = fbrec->m_fbId;
log("facebook: loaded fbrec for fbid=%"UINT64"",fbrec->m_fbId);
log("facebook: loaded emailfreq=%"INT32"",(int32_t)fbrec->m_emailFrequency);
log("facebook: loaded myradius=%"INT32"",(int32_t)fbrec->m_myRadius);
// or if its an hour old i guess, get another token
//int32_t expires = fbrec->m_accessTokenCreated + 3600;
// debug
//expires = 0;
//if ( getTimeGlobal() > expires ) {
// // use this to save again with new access token
// m_oldFbrec = fbrec;
// return downloadAccessToken();
//}
// use the same access token
return true;
}
bool Msgfb::downloadAccessToken ( ) {
//
// ok, no cookie, so see if user just pushed the login button
//
int32_t fbcodeLen = 0;
char *fbcode = m_hr.getString("code", &fbcodeLen, NULL);
// no they did not, no user info is available?
if ( ! fbcode ) return true;
// get current page url (minus the facebook code=)
SafeBuf cup;
m_hr.getCurrentUrl(cup);
//m_hr->getCurrentUrlPath(cup);
// but take out the &code=
char *fix = strstr(cup.getBufStart(),"&code=");
if ( fix ) *fix = 0;
cup.urlEncode();
// use code to get access token
// that calls https://graph.facebook.com/oauth/access_token?
// client_id=YOUR_APP_ID&redirect_uri=YOUR_URL&
// client_secret=YOUR_APP_SECRET&code=THE_CODE_FROM_ABOVE
char fbuf[1024];
SafeBuf fburl ( fbuf,1024 );
fburl.safePrintf ("https://graph.facebook.com/oauth/access_token?"
"client_id=%s&"
"redirect_uri=%s&"
"client_secret=%s&"
"code=%s"
, APPID
//, APPHOSTENCODEDNOSLASH
//, m_redirPath
//
// KEEP It simple because this redirect_uri
// must EXACTLY match the one we used in
// PageEvents.cpp. and it can't have cgi crap in it
// because facebook strips them out...
//
//, "/"
, cup.getBufStart()
, APPSECRET
, fbcode );
// this fburl must match the previous url i think... i think the
// "page" in it changes up and mess wit hit
log("facebook: getting access token code=%s url=%s",fbcode,
fburl.getBufStart());
// reset
g_errno = 0;
if ( ! g_httpServer.getDoc ( fburl.getBufStart() ,
0 , // urlIp
0 , // offset
-1 ,
0 , // ifModifiedSince ,
this , // state
gotFBAccessTokenWrapper , // callback
10*1000 , // 10 sec timeout
0 , // proxyip
0 , // proxyport
10000 , // maxTextDocLen ,
10000 , // maxOtherDocLen ,
g_conf.m_spiderUserAgent ) )
// return false if blocked
return false;
// error?
if ( ! g_errno ) { char *xx=NULL;*xx=0; }
// let caller know we did not block
return gotFBAccessToken ( NULL );
}
bool Msgfb::gotFBAccessToken ( TcpSocket *s ) {
// some kind of error?
if ( g_errno ) {
log("facebook: error launching read of access token: %s",
mstrerror(g_errno));
m_errno = g_errno;
m_errorCount++;
return true;
}
// the access token should be in the reply
char *reply = s->m_readBuf;
int32_t replySize = s->m_readOffset;
// mime error?
HttpMime mime;
// exclude the \0 i guess. use NULL for url.
mime.set ( reply, replySize - 1, NULL );
// not good?
int32_t httpStatus = mime.getHttpStatus();
if ( httpStatus != 200 ) {
log("facebook: bad access request http status = %"INT32". "
"reply=%s",
httpStatus ,
reply );
g_errno = EBADREPLY;
m_errno = g_errno;
m_errorCount++;
return true;
}
// point to content
char *content = reply + mime.getMimeLen();
// assume no accesstoken provided
//int32_t expires = 0;
m_accessToken[0] = '\0';
// look for access token
//sscanf(content,"access_token=%s&expires=%"INT32"",m_accessToken,&expires);
char *at = strstr(content,"access_token=");
if ( at ) {
char *p = at + 13;
char *start = p;
for ( ; *p && *p != '&' ;p++ );
int32_t len = p - start;
if ( len > MAX_TOKEN_LEN ) { char *xx=NULL;*xx=0; }
gbmemcpy ( m_accessToken , start , len );
m_accessToken [ len ] = '\0';
}
// error?
if ( ! m_accessToken[0] ) {
log("facebook: could not find access token");
g_errno = EBADREPLY;
m_errno = g_errno;
m_errorCount++;
return true;
}
// set this timestamp
//m_accessTokenCreated = getTimeGlobal();
// sanity
if ( gbstrlen(m_accessToken) > MAX_TOKEN_LEN ) { char *xx=NULL;*xx=0;}
if ( ! downloadUserToUserRequestInfo() ) return false;
return downloadFBUserInfo();
}
static void gotFQLUserInfoWrapper ( void *state , TcpSocket *s ) {
Msgfb *mfb = (Msgfb *)state;
// . returns false if it blocks
// . returns true with g_errno set on error
if ( ! mfb->gotFQLUserInfo ( s ) ) return;
// error?
if ( g_errno && mfb->m_retryCount++ < 5 ) {
// retry again. this returns false if blocks;
if ( ! mfb->downloadFBUserInfo() ) return;
// probably an error if it returns true!!
}
mfb->m_callback ( mfb->m_state );
}
////////////////
//
// BEGIN SPECIAL FACEBOOK APPREQUEST parsing for m_userToUserWidgetId
//
///////////////
static void gotFBUserToUserRequestWrapper ( void *state , TcpSocket *s ) {
Msgfb *mfb = (Msgfb *)state;
if ( ! mfb->gotFBUserToUserRequest ( s ) ) return;
mfb->m_callback ( mfb->m_state );
}
// before calling downloadFBUserInfo() call this to set the m_widgetId
// parameter correctly! so we can see which facebook user sent them
// this user_to_user apprequest. we need to do this before downloading
// the user info so we can store the m_originatingWidgetId into the
// FBRec before we save it!
bool Msgfb::downloadUserToUserRequestInfo ( ) {
// hmmm. hr is invalid here.
char *request_ids = m_hr.getString("request_ids",NULL);
if ( ! request_ids ) return true;
// if already got one, forget this...
if ( m_widgetId ) return true;
char fbuf[1024];
SafeBuf fburl ( fbuf,1024 );
fburl.safePrintf ("https://graph.facebook.com/me/apprequests/?"
"request_ids=%s&access_token=%s"
, request_ids
, m_accessToken );
// this fburl must match the previous url i think... i think the
// "page" in it changes up and mess wit hit
log("facebook: getting referral fbid url=%s", fburl.getBufStart());
// reset
g_errno = 0;
if ( ! g_httpServer.getDoc ( fburl.getBufStart() ,
0 , // urlIp
0 , // offset
-1 ,
0 , // ifModifiedSince ,
this , // state
gotFBUserToUserRequestWrapper ,
10*1000 , // 10 sec timeout
0 , // proxyip
0 , // proxyport
10000 , // maxTextDocLen ,
10000 , // maxOtherDocLen ,
g_conf.m_spiderUserAgent ) )
// return false if blocked
return false;
// error?
if ( ! g_errno ) { char *xx=NULL;*xx=0; }
// let caller know we did not block
return gotFBUserToUserRequest ( NULL );
}
bool Msgfb::gotFBUserToUserRequest ( TcpSocket *s ) {
// some kind of error?
if ( g_errno ) {
log("facebook: error launching read of fb request: %s",
mstrerror(g_errno));
m_errno = g_errno;
m_errorCount++;
return true;
}
// the access token should be in the reply
char *reply = s->m_readBuf;
int32_t replySize = s->m_readOffset;
// mime error?
HttpMime mime;
// exclude the \0 i guess. use NULL for url.
mime.set ( reply, replySize - 1, NULL );
// not good?
int32_t httpStatus = mime.getHttpStatus();
if ( httpStatus != 200 ) {
log("facebook: bad fb request reply http status = %"INT32". "
"reply=%s",
httpStatus ,
reply );
g_errno = EBADREPLY;
m_errno = g_errno;
m_errorCount++;
return true;
}
// point to content
char *content = reply + mime.getMimeLen();
// https://graph.facebook.com/me/apprequests/?request_ids=417422284951090&access_token=AAAFEg3QA5ygBALw0wqIMOZAD6zfbZBZBaH9mf7sw92kLtOqVtPjasQibZCo4P5R0HHztOnObBeoDoKbwM1ZChht04JJ7KrgkxcXwtNWcrngZDZD
//{
// "data": [
// {
// "id": "417422284951090_100003381767946",
// "application": {
// "name": "Event Guru",
// "namespace": "eventguru",
// "canvas_name": "eventguru",
// "id": "356806354331432"
// },
// "to": {
// "name": "Jezebel Wells",
// "id": "100003381767946"
// },
// "from": {
// "name": "Matt Wells",
// "id": "100003532411011"
// },
// "data": "100003532411011",
// "message": "Hi my friend, I recommend EventGuru.com for discovering interesting local events. Plus, if you login to Event Guru I make a buck.",
// "created_time": "2012-03-29T02:41:37+0000"
// }
// ],
// "paging": {
// "previous": "https://graph.facebook.com/me/apprequests?request_ids=417422284951090&access_token=AAAFEg3QA5ygBALw0wqIMOZAD6zfbZBZBaH9mf7sw92kLtOqVtPjasQibZCo4P5R0HHztOnObBeoDoKbwM1ZChht04JJ7KrgkxcXwtNWcrngZDZD&limit=50&since=1332988897&__paging_token=417422284951090_100003381767946&__previous=1",
// "next": "https://graph.facebook.com/me/apprequests?request_ids=417422284951090&access_token=AAAFEg3QA5ygBALw0wqIMOZAD6zfbZBZBaH9mf7sw92kLtOqVtPjasQibZCo4P5R0HHztOnObBeoDoKbwM1ZChht04JJ7KrgkxcXwtNWcrngZDZD&limit=50&until=1332988897&__paging_token=417422284951090_100003381767946"
// }
//}
// mine out who sent it
char *from = strstr ( content , "\"from\":" );
int64_t id1 = 0LL;
if ( from ) {
char *ids = strstr ( from , "\"id\":" );
for ( ; ids && *ids && ! is_digit(*ids) ; ids++ );
if ( ids && *ids ) id1 = atoll(ids);
}
// mine out who sent it again... this is only present for paid invites
char *data = NULL;
// start mining AFTER "from" because there is a top "data" field!!
if ( from ) data = strstr ( from , "\"data\":" );
int64_t id2 = 0LL;
if ( data ) {
char *ids = strstr ( data , "\"id\":" );
for ( ; ids && *ids && ! is_digit(*ids) ; ids++ );
if ( ids && *ids ) id2 = atoll(ids);
}
// must match to be an official paid invite. we only include
// the "data" for the paid invites.
if ( id1 == id2 )
// set that to our widgetid then
m_widgetId = id1;
// download facebook info now
return downloadFBUserInfo();
}
////////////////
//
// END SPECIAL FACEBOOK APPREQUEST parsing for user_to_user m_widgetId
//
///////////////
//int64_t mdw = 100003532411011LL; // my uid for Matt Wells
// 100003316058818 // uid for flurbit
// http://graph.facebook.com/502303355/picture shows pics for a uid
bool Msgfb::downloadFBUserInfo ( ) {
log("facebook: downloading user info initial login");
SafeBuf cmd1;
// get your facebook id
cmd1.safePrintf ( "SELECT uid,username,first_name,last_name,name,pic_square,profile_update_time,timezone,religion,birthday,birthday_date,sex,hometown_location,current_location,activities,interests,is_app_user,music,tv,movies,books,about_me,status,online_presence,proxied_email,verified,website,is_blocked,contact_email,email,is_minor,work,education,sports,languages,likes_count,friend_count FROM user where uid=me()");
log("facebook: cmd1 = %s",cmd1.getBufStart());
cmd1.urlEncode();
// www.howtobe.pro/facebook-graph-api-graph-api-for-issuing-fql-queries
// make a url
SafeBuf ubuf;
ubuf.safePrintf("https://api.facebook.com/method/"
"fql.query?query=%s"
"&access_token=%s&format=xml"
, cmd1.getBufStart()
, m_accessToken
);
log("facebook: getting url = %s",ubuf.getBufStart());
// reset
g_errno = 0;
// get the results
if ( ! g_httpServer.getDoc ( ubuf.getBufStart() ,
0 , // urlIp
0 , // offset
-1 ,
0 , // ifModifiedSince ,
this , // state
gotFQLUserInfoWrapper , // callback
40*1000 , // 20 sec timeout
0 , // proxyip
0 , // proxyport
30000000 , // maxTextDocLen ,
30000000 , // maxOtherDocLen ,
g_conf.m_spiderUserAgent ) )
// return false if blocked
return false;
// otherwise, somehow got it without blocking... wtf?
//return gotFQLReply();
if ( ! g_errno ) { char *xx=NULL;*xx=0; }
log("fql: error getting doc: %s",mstrerror(g_errno));
return true;
}
static bool queueFBId ( int64_t fbId , collnum_t collnum );
static void savedFBRecWrapper1 ( void *state ) {
Msgfb *mfb = (Msgfb *)state;
if ( ! g_errno ) queueFBId ( mfb->m_fbId , mfb->m_collnum );
mfb->m_callback ( mfb->m_state );
}
static void doneRecheckingWrapper ( void *state ) {
Msgfb *mfb = (Msgfb *)state;
if ( ! mfb->doneRechecking ( ) ) return;
mfb->m_callback ( mfb->m_state );
}
// returns true with g_errno set on error
bool Msgfb::gotFQLUserInfo ( TcpSocket *s ) {
// bail on error
if ( g_errno ) {
log("fql: %s",mstrerror(g_errno));
m_errno = g_errno;
m_errorCount++;
return true;
}
// get reply
char *reply = s->m_readBuf;
int32_t replySize = s->m_readOffset;
// we reference into this, so do not free it!!
m_facebookReply = s->m_readBuf;
m_facebookReplySize = s->m_readOffset;
m_facebookAllocSize = s->m_readBufSize;
// do not allow tcpsocket to free it. we free it in destructor.
s->m_readBuf = NULL;
// mime error?
HttpMime mime;
// exclude the \0 i guess. use NULL for url.
mime.set ( reply, replySize - 1, NULL );
// not good?
int32_t httpStatus = mime.getHttpStatus();
if ( httpStatus != 200 ) {
log("facebook: bad fql request http status = %"INT32"",
httpStatus );
g_errno = EBADREPLY;
m_errno = g_errno;
m_errorCount++;
return true;
}
// point to content
char *content = reply + mime.getMimeLen();
int32_t contentLen = reply + replySize - content;
// check for error
char *errMsg = strstr(content,"<error_msg>");
if ( errMsg ) {
log("facebook: error in fql reply: %s", content );
g_errno = EBADREPLY;
m_errno = g_errno;
m_errorCount++;
return true;
}
// set it on stack i guess
//FBRec fbrec;
// all the FBRec::ptr_* things reference into "reply"
// import friendids from existing rec if there, we just want to
// save the new access token!!!!
if ( ! setFBRecFromFQLReply ( content,contentLen, &m_fbrecGen) ){
log("fql: error setting fb rec from fql");
g_errno = EBADREPLY;
return true;
}
// must be there!
if ( ! m_fbrecGen.m_fbId ) {
log("fql: failed to get facebook id from reply");
g_errno = EBADENGINEER;
m_errno = g_errno;
m_errorCount++;
return true;
}
// sanity
log("facebook: got initial facebook reply. fbid=%"INT64"",m_fbId);
// point to it!
m_fbrecPtr = &m_fbrecGen;
// now that we got the fbid see if its in facebookdb again
int64_t fbId = m_fbrecGen.m_fbId;
key96_t startKey;
key96_t endKey;
startKey.n1 = 0;
startKey.n0 = fbId;
endKey.n1 = 0;
endKey.n0 = fbId;
startKey.n0 <<= 1;
endKey.n0 <<= 1;
endKey.n0 |= 0x01;
//char *coll = g_collectiondb.getColl(m_collnum);
if ( ! m_msg0.getList ( -1, // hostid
0 , // ip
0 , // port
0 , // maxcacheage
false, // addtocache
RDB_FACEBOOKDB,
"",//coll,
&m_list4,
(char *)&startKey,
(char *)&endKey,
12, // minrecsizes
this ,
doneRecheckingWrapper,
0 ) )//niceness ) )
return false;
// i guess we got it without blocking
return doneRechecking();
}
//
// MERGE/UPDATE the old fbrec with the new fbrec
//
void mergeFBRec ( FBRec *dst , FBRec *src ) {
// if we had a pre-existing fbrec in facebookdb, do not just
// save m_fbrecGen because it does not have ptr_friendIds set!
// so inherit or import the friendIds from the pre-existing
// rec. otherwise we lose the friends until the cmd2 executes
// and that could be a while or that could fail!
if ( dst->size_friendIds <= 0 ) {
dst->ptr_friendIds = src-> ptr_friendIds;
dst->size_friendIds = src->size_friendIds;
}
// also this stuff too!
dst->m_emailFrequency = src->m_emailFrequency;
dst->m_myRadius = src->m_myRadius;
dst->ptr_mergedInterests = src->ptr_mergedInterests;
dst->size_mergedInterests = src->size_mergedInterests;
dst->ptr_myLocation = src->ptr_myLocation;
dst->size_myLocation = src->size_myLocation;
// save this stuff now too for Emailer
dst->m_nextRetry = src->m_nextRetry;
dst->m_timeToEmail = src->m_timeToEmail;
dst->m_lastEmailAttempt = src->m_lastEmailAttempt;
// other stuff
dst->m_eventsDownloaded = src->m_eventsDownloaded;
dst->m_accessTokenCreated = src->m_accessTokenCreated;
// new stuff
dst->m_flags = src->m_flags; // FB_INQUEUE
// for payment info:
dst->m_originatingWidgetId = src->m_originatingWidgetId;
// overwrite it if zero
if ( src->m_firstFacebookLogin )
dst->m_firstFacebookLogin = src->m_firstFacebookLogin;
// if it is zero in the old rec, overwrite it!
if ( src->m_lastLoginIP )
dst->m_lastLoginIP = src->m_lastLoginIP;
//dst-> = src->;
}
// returns false if blocked, true otherwise
bool Msgfb::saveFBRec ( FBRec *fbrec ) {
log("facebook: saving fbrec for fbid=%"INT64"",m_fbId);
log("facebook: saving myradius=%"INT32"",fbrec->m_myRadius);
log("facebook: saving mylocation=%s",fbrec->ptr_myLocation);
log("facebook: saving emailfreq=%"INT32"",(int32_t)fbrec->m_emailFrequency);
// . returns NULL and sets g_errno on error
// . "true" means we should make mr.ptr_* reference into the newly
// serialized buffer
int32_t replySize;
char *reply = serializeMsg ( sizeof(FBRec) ,
&fbrec->size_accessToken,//1stsizeparm
&fbrec->size_friendIds,// lastsizeparm
&fbrec->ptr_accessToken , // firststrptr
fbrec , // thisptr
&replySize ,
NULL ,
0 ,
false ); // true );
if ( ! reply ) {
log("facebook: could not save fbrec: %s",mstrerror(g_errno));
return true;
}
// make the binary tag then for this facebook user
//char *rec = (char *)&m_key;//fbId;
//int32_t recSize = (char *)&m_ids[m_numIds] - rec;
FBRec *serializedRec = (FBRec *)reply;
// set this after we know it
serializedRec->m_dataSize = replySize - sizeof(key96_t) - 4;
//char *coll = g_collectiondb.getColl ( m_collnum );
// use the list we got
key128_t startKey;
key128_t endKey;
startKey.setMin();
endKey.setMax();
// use m_list2 and not m_list since m_fbrecPtr is referencing
// m_list's content from our facebookdb lookup above
m_list2.set ( reply ,
replySize ,
NULL ,
0 ,