diff options
Diffstat (limited to 'phpBB/includes/sphinxapi.php')
| -rw-r--r-- | phpBB/includes/sphinxapi.php | 1712 |
1 files changed, 1712 insertions, 0 deletions
diff --git a/phpBB/includes/sphinxapi.php b/phpBB/includes/sphinxapi.php new file mode 100644 index 0000000000..bd83b1d2e0 --- /dev/null +++ b/phpBB/includes/sphinxapi.php @@ -0,0 +1,1712 @@ +<?php
+
+//
+// $Id: sphinxapi.php 3087 2012-01-30 23:07:35Z shodan $
+//
+
+//
+// Copyright (c) 2001-2012, Andrew Aksyonoff
+// Copyright (c) 2008-2012, Sphinx Technologies Inc
+// All rights reserved
+//
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License. You should have
+// received a copy of the GPL license along with this program; if you
+// did not, you can find it at http://www.gnu.org/
+//
+
+/////////////////////////////////////////////////////////////////////////////
+// PHP version of Sphinx searchd client (PHP API)
+/////////////////////////////////////////////////////////////////////////////
+
+/// known searchd commands
+define ( "SEARCHD_COMMAND_SEARCH", 0 );
+define ( "SEARCHD_COMMAND_EXCERPT", 1 );
+define ( "SEARCHD_COMMAND_UPDATE", 2 );
+define ( "SEARCHD_COMMAND_KEYWORDS", 3 );
+define ( "SEARCHD_COMMAND_PERSIST", 4 );
+define ( "SEARCHD_COMMAND_STATUS", 5 );
+define ( "SEARCHD_COMMAND_FLUSHATTRS", 7 );
+
+/// current client-side command implementation versions
+define ( "VER_COMMAND_SEARCH", 0x119 );
+define ( "VER_COMMAND_EXCERPT", 0x104 );
+define ( "VER_COMMAND_UPDATE", 0x102 );
+define ( "VER_COMMAND_KEYWORDS", 0x100 );
+define ( "VER_COMMAND_STATUS", 0x100 );
+define ( "VER_COMMAND_QUERY", 0x100 );
+define ( "VER_COMMAND_FLUSHATTRS", 0x100 );
+
+/// known searchd status codes
+define ( "SEARCHD_OK", 0 );
+define ( "SEARCHD_ERROR", 1 );
+define ( "SEARCHD_RETRY", 2 );
+define ( "SEARCHD_WARNING", 3 );
+
+/// known match modes
+define ( "SPH_MATCH_ALL", 0 );
+define ( "SPH_MATCH_ANY", 1 );
+define ( "SPH_MATCH_PHRASE", 2 );
+define ( "SPH_MATCH_BOOLEAN", 3 );
+define ( "SPH_MATCH_EXTENDED", 4 );
+define ( "SPH_MATCH_FULLSCAN", 5 );
+define ( "SPH_MATCH_EXTENDED2", 6 ); // extended engine V2 (TEMPORARY, WILL BE REMOVED)
+
+/// known ranking modes (ext2 only)
+define ( "SPH_RANK_PROXIMITY_BM25", 0 ); ///< default mode, phrase proximity major factor and BM25 minor one
+define ( "SPH_RANK_BM25", 1 ); ///< statistical mode, BM25 ranking only (faster but worse quality)
+define ( "SPH_RANK_NONE", 2 ); ///< no ranking, all matches get a weight of 1
+define ( "SPH_RANK_WORDCOUNT", 3 ); ///< simple word-count weighting, rank is a weighted sum of per-field keyword occurence counts
+define ( "SPH_RANK_PROXIMITY", 4 );
+define ( "SPH_RANK_MATCHANY", 5 );
+define ( "SPH_RANK_FIELDMASK", 6 );
+define ( "SPH_RANK_SPH04", 7 );
+define ( "SPH_RANK_EXPR", 8 );
+define ( "SPH_RANK_TOTAL", 9 );
+
+/// known sort modes
+define ( "SPH_SORT_RELEVANCE", 0 );
+define ( "SPH_SORT_ATTR_DESC", 1 );
+define ( "SPH_SORT_ATTR_ASC", 2 );
+define ( "SPH_SORT_TIME_SEGMENTS", 3 );
+define ( "SPH_SORT_EXTENDED", 4 );
+define ( "SPH_SORT_EXPR", 5 );
+
+/// known filter types
+define ( "SPH_FILTER_VALUES", 0 );
+define ( "SPH_FILTER_RANGE", 1 );
+define ( "SPH_FILTER_FLOATRANGE", 2 );
+
+/// known attribute types
+define ( "SPH_ATTR_INTEGER", 1 );
+define ( "SPH_ATTR_TIMESTAMP", 2 );
+define ( "SPH_ATTR_ORDINAL", 3 );
+define ( "SPH_ATTR_BOOL", 4 );
+define ( "SPH_ATTR_FLOAT", 5 );
+define ( "SPH_ATTR_BIGINT", 6 );
+define ( "SPH_ATTR_STRING", 7 );
+define ( "SPH_ATTR_MULTI", 0x40000001 );
+define ( "SPH_ATTR_MULTI64", 0x40000002 );
+
+/// known grouping functions
+define ( "SPH_GROUPBY_DAY", 0 );
+define ( "SPH_GROUPBY_WEEK", 1 );
+define ( "SPH_GROUPBY_MONTH", 2 );
+define ( "SPH_GROUPBY_YEAR", 3 );
+define ( "SPH_GROUPBY_ATTR", 4 );
+define ( "SPH_GROUPBY_ATTRPAIR", 5 );
+
+// important properties of PHP's integers:
+// - always signed (one bit short of PHP_INT_SIZE)
+// - conversion from string to int is saturated
+// - float is double
+// - div converts arguments to floats
+// - mod converts arguments to ints
+
+// the packing code below works as follows:
+// - when we got an int, just pack it
+// if performance is a problem, this is the branch users should aim for
+//
+// - otherwise, we got a number in string form
+// this might be due to different reasons, but we assume that this is
+// because it didn't fit into PHP int
+//
+// - factor the string into high and low ints for packing
+// - if we have bcmath, then it is used
+// - if we don't, we have to do it manually (this is the fun part)
+//
+// - x64 branch does factoring using ints
+// - x32 (ab)uses floats, since we can't fit unsigned 32-bit number into an int
+//
+// unpacking routines are pretty much the same.
+// - return ints if we can
+// - otherwise format number into a string
+
+/// pack 64-bit signed
+function sphPackI64 ( $v )
+{
+ assert ( is_numeric($v) );
+
+ // x64
+ if ( PHP_INT_SIZE>=8 )
+ {
+ $v = (int)$v;
+ return pack ( "NN", $v>>32, $v&0xFFFFFFFF );
+ }
+
+ // x32, int
+ if ( is_int($v) )
+ return pack ( "NN", $v < 0 ? -1 : 0, $v );
+
+ // x32, bcmath
+ if ( function_exists("bcmul") )
+ {
+ if ( bccomp ( $v, 0 ) == -1 )
+ $v = bcadd ( "18446744073709551616", $v );
+ $h = bcdiv ( $v, "4294967296", 0 );
+ $l = bcmod ( $v, "4294967296" );
+ return pack ( "NN", (float)$h, (float)$l ); // conversion to float is intentional; int would lose 31st bit
+ }
+
+ // x32, no-bcmath
+ $p = max(0, strlen($v) - 13);
+ $lo = abs((float)substr($v, $p));
+ $hi = abs((float)substr($v, 0, $p));
+
+ $m = $lo + $hi*1316134912.0; // (10 ^ 13) % (1 << 32) = 1316134912
+ $q = floor($m/4294967296.0);
+ $l = $m - ($q*4294967296.0);
+ $h = $hi*2328.0 + $q; // (10 ^ 13) / (1 << 32) = 2328
+
+ if ( $v<0 )
+ {
+ if ( $l==0 )
+ $h = 4294967296.0 - $h;
+ else
+ {
+ $h = 4294967295.0 - $h;
+ $l = 4294967296.0 - $l;
+ }
+ }
+ return pack ( "NN", $h, $l );
+}
+
+/// pack 64-bit unsigned
+function sphPackU64 ( $v )
+{
+ assert ( is_numeric($v) );
+
+ // x64
+ if ( PHP_INT_SIZE>=8 )
+ {
+ assert ( $v>=0 );
+
+ // x64, int
+ if ( is_int($v) )
+ return pack ( "NN", $v>>32, $v&0xFFFFFFFF );
+
+ // x64, bcmath
+ if ( function_exists("bcmul") )
+ {
+ $h = bcdiv ( $v, 4294967296, 0 );
+ $l = bcmod ( $v, 4294967296 );
+ return pack ( "NN", $h, $l );
+ }
+
+ // x64, no-bcmath
+ $p = max ( 0, strlen($v) - 13 );
+ $lo = (int)substr ( $v, $p );
+ $hi = (int)substr ( $v, 0, $p );
+
+ $m = $lo + $hi*1316134912;
+ $l = $m % 4294967296;
+ $h = $hi*2328 + (int)($m/4294967296);
+
+ return pack ( "NN", $h, $l );
+ }
+
+ // x32, int
+ if ( is_int($v) )
+ return pack ( "NN", 0, $v );
+
+ // x32, bcmath
+ if ( function_exists("bcmul") )
+ {
+ $h = bcdiv ( $v, "4294967296", 0 );
+ $l = bcmod ( $v, "4294967296" );
+ return pack ( "NN", (float)$h, (float)$l ); // conversion to float is intentional; int would lose 31st bit
+ }
+
+ // x32, no-bcmath
+ $p = max(0, strlen($v) - 13);
+ $lo = (float)substr($v, $p);
+ $hi = (float)substr($v, 0, $p);
+
+ $m = $lo + $hi*1316134912.0;
+ $q = floor($m / 4294967296.0);
+ $l = $m - ($q * 4294967296.0);
+ $h = $hi*2328.0 + $q;
+
+ return pack ( "NN", $h, $l );
+}
+
+// unpack 64-bit unsigned
+function sphUnpackU64 ( $v )
+{
+ list ( $hi, $lo ) = array_values ( unpack ( "N*N*", $v ) );
+
+ if ( PHP_INT_SIZE>=8 )
+ {
+ if ( $hi<0 ) $hi += (1<<32); // because php 5.2.2 to 5.2.5 is totally fucked up again
+ if ( $lo<0 ) $lo += (1<<32);
+
+ // x64, int
+ if ( $hi<=2147483647 )
+ return ($hi<<32) + $lo;
+
+ // x64, bcmath
+ if ( function_exists("bcmul") )
+ return bcadd ( $lo, bcmul ( $hi, "4294967296" ) );
+
+ // x64, no-bcmath
+ $C = 100000;
+ $h = ((int)($hi / $C) << 32) + (int)($lo / $C);
+ $l = (($hi % $C) << 32) + ($lo % $C);
+ if ( $l>$C )
+ {
+ $h += (int)($l / $C);
+ $l = $l % $C;
+ }
+
+ if ( $h==0 )
+ return $l;
+ return sprintf ( "%d%05d", $h, $l );
+ }
+
+ // x32, int
+ if ( $hi==0 )
+ {
+ if ( $lo>0 )
+ return $lo;
+ return sprintf ( "%u", $lo );
+ }
+
+ $hi = sprintf ( "%u", $hi );
+ $lo = sprintf ( "%u", $lo );
+
+ // x32, bcmath
+ if ( function_exists("bcmul") )
+ return bcadd ( $lo, bcmul ( $hi, "4294967296" ) );
+
+ // x32, no-bcmath
+ $hi = (float)$hi;
+ $lo = (float)$lo;
+
+ $q = floor($hi/10000000.0);
+ $r = $hi - $q*10000000.0;
+ $m = $lo + $r*4967296.0;
+ $mq = floor($m/10000000.0);
+ $l = $m - $mq*10000000.0;
+ $h = $q*4294967296.0 + $r*429.0 + $mq;
+
+ $h = sprintf ( "%.0f", $h );
+ $l = sprintf ( "%07.0f", $l );
+ if ( $h=="0" )
+ return sprintf( "%.0f", (float)$l );
+ return $h . $l;
+}
+
+// unpack 64-bit signed
+function sphUnpackI64 ( $v )
+{
+ list ( $hi, $lo ) = array_values ( unpack ( "N*N*", $v ) );
+
+ // x64
+ if ( PHP_INT_SIZE>=8 )
+ {
+ if ( $hi<0 ) $hi += (1<<32); // because php 5.2.2 to 5.2.5 is totally fucked up again
+ if ( $lo<0 ) $lo += (1<<32);
+
+ return ($hi<<32) + $lo;
+ }
+
+ // x32, int
+ if ( $hi==0 )
+ {
+ if ( $lo>0 )
+ return $lo;
+ return sprintf ( "%u", $lo );
+ }
+ // x32, int
+ elseif ( $hi==-1 )
+ {
+ if ( $lo<0 )
+ return $lo;
+ return sprintf ( "%.0f", $lo - 4294967296.0 );
+ }
+
+ $neg = "";
+ $c = 0;
+ if ( $hi<0 )
+ {
+ $hi = ~$hi;
+ $lo = ~$lo;
+ $c = 1;
+ $neg = "-";
+ }
+
+ $hi = sprintf ( "%u", $hi );
+ $lo = sprintf ( "%u", $lo );
+
+ // x32, bcmath
+ if ( function_exists("bcmul") )
+ return $neg . bcadd ( bcadd ( $lo, bcmul ( $hi, "4294967296" ) ), $c );
+
+ // x32, no-bcmath
+ $hi = (float)$hi;
+ $lo = (float)$lo;
+
+ $q = floor($hi/10000000.0);
+ $r = $hi - $q*10000000.0;
+ $m = $lo + $r*4967296.0;
+ $mq = floor($m/10000000.0);
+ $l = $m - $mq*10000000.0 + $c;
+ $h = $q*4294967296.0 + $r*429.0 + $mq;
+ if ( $l==10000000 )
+ {
+ $l = 0;
+ $h += 1;
+ }
+
+ $h = sprintf ( "%.0f", $h );
+ $l = sprintf ( "%07.0f", $l );
+ if ( $h=="0" )
+ return $neg . sprintf( "%.0f", (float)$l );
+ return $neg . $h . $l;
+}
+
+
+function sphFixUint ( $value )
+{
+ if ( PHP_INT_SIZE>=8 )
+ {
+ // x64 route, workaround broken unpack() in 5.2.2+
+ if ( $value<0 ) $value += (1<<32);
+ return $value;
+ }
+ else
+ {
+ // x32 route, workaround php signed/unsigned braindamage
+ return sprintf ( "%u", $value );
+ }
+}
+
+
+/// sphinx searchd client class
+class SphinxClient
+{
+ var $_host; ///< searchd host (default is "localhost")
+ var $_port; ///< searchd port (default is 9312)
+ var $_offset; ///< how many records to seek from result-set start (default is 0)
+ var $_limit; ///< how many records to return from result-set starting at offset (default is 20)
+ var $_mode; ///< query matching mode (default is SPH_MATCH_ALL)
+ var $_weights; ///< per-field weights (default is 1 for all fields)
+ var $_sort; ///< match sorting mode (default is SPH_SORT_RELEVANCE)
+ var $_sortby; ///< attribute to sort by (defualt is "")
+ var $_min_id; ///< min ID to match (default is 0, which means no limit)
+ var $_max_id; ///< max ID to match (default is 0, which means no limit)
+ var $_filters; ///< search filters
+ var $_groupby; ///< group-by attribute name
+ var $_groupfunc; ///< group-by function (to pre-process group-by attribute value with)
+ var $_groupsort; ///< group-by sorting clause (to sort groups in result set with)
+ var $_groupdistinct;///< group-by count-distinct attribute
+ var $_maxmatches; ///< max matches to retrieve
+ var $_cutoff; ///< cutoff to stop searching at (default is 0)
+ var $_retrycount; ///< distributed retries count
+ var $_retrydelay; ///< distributed retries delay
+ var $_anchor; ///< geographical anchor point
+ var $_indexweights; ///< per-index weights
+ var $_ranker; ///< ranking mode (default is SPH_RANK_PROXIMITY_BM25)
+ var $_rankexpr; ///< ranking mode expression (for SPH_RANK_EXPR)
+ var $_maxquerytime; ///< max query time, milliseconds (default is 0, do not limit)
+ var $_fieldweights; ///< per-field-name weights
+ var $_overrides; ///< per-query attribute values overrides
+ var $_select; ///< select-list (attributes or expressions, with optional aliases)
+
+ var $_error; ///< last error message
+ var $_warning; ///< last warning message
+ var $_connerror; ///< connection error vs remote error flag
+
+ var $_reqs; ///< requests array for multi-query
+ var $_mbenc; ///< stored mbstring encoding
+ var $_arrayresult; ///< whether $result["matches"] should be a hash or an array
+ var $_timeout; ///< connect timeout
+
+ /////////////////////////////////////////////////////////////////////////////
+ // common stuff
+ /////////////////////////////////////////////////////////////////////////////
+
+ /// create a new client object and fill defaults
+ function SphinxClient ()
+ {
+ // per-client-object settings
+ $this->_host = "localhost";
+ $this->_port = 9312;
+ $this->_path = false;
+ $this->_socket = false;
+
+ // per-query settings
+ $this->_offset = 0;
+ $this->_limit = 20;
+ $this->_mode = SPH_MATCH_ALL;
+ $this->_weights = array ();
+ $this->_sort = SPH_SORT_RELEVANCE;
+ $this->_sortby = "";
+ $this->_min_id = 0;
+ $this->_max_id = 0;
+ $this->_filters = array ();
+ $this->_groupby = "";
+ $this->_groupfunc = SPH_GROUPBY_DAY;
+ $this->_groupsort = "@group desc";
+ $this->_groupdistinct= "";
+ $this->_maxmatches = 1000;
+ $this->_cutoff = 0;
+ $this->_retrycount = 0;
+ $this->_retrydelay = 0;
+ $this->_anchor = array ();
+ $this->_indexweights= array ();
+ $this->_ranker = SPH_RANK_PROXIMITY_BM25;
+ $this->_rankexpr = "";
+ $this->_maxquerytime= 0;
+ $this->_fieldweights= array();
+ $this->_overrides = array();
+ $this->_select = "*";
+
+ $this->_error = ""; // per-reply fields (for single-query case)
+ $this->_warning = "";
+ $this->_connerror = false;
+
+ $this->_reqs = array (); // requests storage (for multi-query case)
+ $this->_mbenc = "";
+ $this->_arrayresult = false;
+ $this->_timeout = 0;
+ }
+
+ function __destruct()
+ {
+ if ( $this->_socket !== false )
+ fclose ( $this->_socket );
+ }
+
+ /// get last error message (string)
+ function GetLastError ()
+ {
+ return $this->_error;
+ }
+
+ /// get last warning message (string)
+ function GetLastWarning ()
+ {
+ return $this->_warning;
+ }
+
+ /// get last error flag (to tell network connection errors from searchd errors or broken responses)
+ function IsConnectError()
+ {
+ return $this->_connerror;
+ }
+
+ /// set searchd host name (string) and port (integer)
+ function SetServer ( $host, $port = 0 )
+ {
+ assert ( is_string($host) );
+ if ( $host[0] == '/')
+ {
+ $this->_path = 'unix://' . $host;
+ return;
+ }
+ if ( substr ( $host, 0, 7 )=="unix://" )
+ {
+ $this->_path = $host;
+ return;
+ }
+
+ assert ( is_int($port) );
+ $this->_host = $host;
+ $this->_port = $port;
+ $this->_path = '';
+
+ }
+
+ /// set server connection timeout (0 to remove)
+ function SetConnectTimeout ( $timeout )
+ {
+ assert ( is_numeric($timeout) );
+ $this->_timeout = $timeout;
+ }
+
+
+ function _Send ( $handle, $data, $length )
+ {
+ if ( feof($handle) || fwrite ( $handle, $data, $length ) !== $length )
+ {
+ $this->_error = 'connection unexpectedly closed (timed out?)';
+ $this->_connerror = true;
+ return false;
+ }
+ return true;
+ }
+
+ /////////////////////////////////////////////////////////////////////////////
+
+ /// enter mbstring workaround mode
+ function _MBPush ()
+ {
+ $this->_mbenc = "";
+ if ( ini_get ( "mbstring.func_overload" ) & 2 )
+ {
+ $this->_mbenc = mb_internal_encoding();
+ mb_internal_encoding ( "latin1" );
+ }
+ }
+
+ /// leave mbstring workaround mode
+ function _MBPop ()
+ {
+ if ( $this->_mbenc )
+ mb_internal_encoding ( $this->_mbenc );
+ }
+
+ /// connect to searchd server
+ function _Connect ()
+ {
+ if ( $this->_socket!==false )
+ {
+ // we are in persistent connection mode, so we have a socket
+ // however, need to check whether it's still alive
+ if ( !@feof ( $this->_socket ) )
+ return $this->_socket;
+
+ // force reopen
+ $this->_socket = false;
+ }
+
+ $errno = 0;
+ $errstr = "";
+ $this->_connerror = false;
+
+ if ( $this->_path )
+ {
+ $host = $this->_path;
+ $port = 0;
+ }
+ else
+ {
+ $host = $this->_host;
+ $port = $this->_port;
+ }
+
+ if ( $this->_timeout<=0 )
+ $fp = @fsockopen ( $host, $port, $errno, $errstr );
+ else
+ $fp = @fsockopen ( $host, $port, $errno, $errstr, $this->_timeout );
+
+ if ( !$fp )
+ {
+ if ( $this->_path )
+ $location = $this->_path;
+ else
+ $location = "{$this->_host}:{$this->_port}";
+
+ $errstr = trim ( $errstr );
+ $this->_error = "connection to $location failed (errno=$errno, msg=$errstr)";
+ $this->_connerror = true;
+ return false;
+ }
+
+ // send my version
+ // this is a subtle part. we must do it before (!) reading back from searchd.
+ // because otherwise under some conditions (reported on FreeBSD for instance)
+ // TCP stack could throttle write-write-read pattern because of Nagle.
+ if ( !$this->_Send ( $fp, pack ( "N", 1 ), 4 ) )
+ {
+ fclose ( $fp );
+ $this->_error = "failed to send client protocol version";
+ return false;
+ }
+
+ // check version
+ list(,$v) = unpack ( "N*", fread ( $fp, 4 ) );
+ $v = (int)$v;
+ if ( $v<1 )
+ {
+ fclose ( $fp );
+ $this->_error = "expected searchd protocol version 1+, got version '$v'";
+ return false;
+ }
+
+ return $fp;
+ }
+
+ /// get and check response packet from searchd server
+ function _GetResponse ( $fp, $client_ver )
+ {
+ $response = "";
+ $len = 0;
+
+ $header = fread ( $fp, 8 );
+ if ( strlen($header)==8 )
+ {
+ list ( $status, $ver, $len ) = array_values ( unpack ( "n2a/Nb", $header ) );
+ $left = $len;
+ while ( $left>0 && !feof($fp) )
+ {
+ $chunk = fread ( $fp, min ( 8192, $left ) );
+ if ( $chunk )
+ {
+ $response .= $chunk;
+ $left -= strlen($chunk);
+ }
+ }
+ }
+ if ( $this->_socket === false )
+ fclose ( $fp );
+
+ // check response
+ $read = strlen ( $response );
+ if ( !$response || $read!=$len )
+ {
+ $this->_error = $len
+ ? "failed to read searchd response (status=$status, ver=$ver, len=$len, read=$read)"
+ : "received zero-sized searchd response";
+ return false;
+ }
+
+ // check status
+ if ( $status==SEARCHD_WARNING )
+ {
+ list(,$wlen) = unpack ( "N*", substr ( $response, 0, 4 ) );
+ $this->_warning = substr ( $response, 4, $wlen );
+ return substr ( $response, 4+$wlen );
+ }
+ if ( $status==SEARCHD_ERROR )
+ {
+ $this->_error = "searchd error: " . substr ( $response, 4 );
+ return false;
+ }
+ if ( $status==SEARCHD_RETRY )
+ {
+ $this->_error = "temporary searchd error: " . substr ( $response, 4 );
+ return false;
+ }
+ if ( $status!=SEARCHD_OK )
+ {
+ $this->_error = "unknown status code '$status'";
+ return false;
+ }
+
+ // check version
+ if ( $ver<$client_ver )
+ {
+ $this->_warning = sprintf ( "searchd command v.%d.%d older than client's v.%d.%d, some options might not work",
+ $ver>>8, $ver&0xff, $client_ver>>8, $client_ver&0xff );
+ }
+
+ return $response;
+ }
+
+ /////////////////////////////////////////////////////////////////////////////
+ // searching
+ /////////////////////////////////////////////////////////////////////////////
+
+ /// set offset and count into result set,
+ /// and optionally set max-matches and cutoff limits
+ function SetLimits ( $offset, $limit, $max=0, $cutoff=0 )
+ {
+ assert ( is_int($offset) );
+ assert ( is_int($limit) );
+ assert ( $offset>=0 );
+ assert ( $limit>0 );
+ assert ( $max>=0 );
+ $this->_offset = $offset;
+ $this->_limit = $limit;
+ if ( $max>0 )
+ $this->_maxmatches = $max;
+ if ( $cutoff>0 )
+ $this->_cutoff = $cutoff;
+ }
+
+ /// set maximum query time, in milliseconds, per-index
+ /// integer, 0 means "do not limit"
+ function SetMaxQueryTime ( $max )
+ {
+ assert ( is_int($max) );
+ assert ( $max>=0 );
+ $this->_maxquerytime = $max;
+ }
+
+ /// set matching mode
+ function SetMatchMode ( $mode )
+ {
+ assert ( $mode==SPH_MATCH_ALL
+ || $mode==SPH_MATCH_ANY
+ || $mode==SPH_MATCH_PHRASE
+ || $mode==SPH_MATCH_BOOLEAN
+ || $mode==SPH_MATCH_EXTENDED
+ || $mode==SPH_MATCH_FULLSCAN
+ || $mode==SPH_MATCH_EXTENDED2 );
+ $this->_mode = $mode;
+ }
+
+ /// set ranking mode
+ function SetRankingMode ( $ranker, $rankexpr="" )
+ {
+ assert ( $ranker>=0 && $ranker<SPH_RANK_TOTAL );
+ assert ( is_string($rankexpr) );
+ $this->_ranker = $ranker;
+ $this->_rankexpr = $rankexpr;
+ }
+
+ /// set matches sorting mode
+ function SetSortMode ( $mode, $sortby="" )
+ {
+ assert (
+ $mode==SPH_SORT_RELEVANCE ||
+ $mode==SPH_SORT_ATTR_DESC ||
+ $mode==SPH_SORT_ATTR_ASC ||
+ $mode==SPH_SORT_TIME_SEGMENTS ||
+ $mode==SPH_SORT_EXTENDED ||
+ $mode==SPH_SORT_EXPR );
+ assert ( is_string($sortby) );
+ assert ( $mode==SPH_SORT_RELEVANCE || strlen($sortby)>0 );
+
+ $this->_sort = $mode;
+ $this->_sortby = $sortby;
+ }
+
+ /// bind per-field weights by order
+ /// DEPRECATED; use SetFieldWeights() instead
+ function SetWeights ( $weights )
+ {
+ assert ( is_array($weights) );
+ foreach ( $weights as $weight )
+ assert ( is_int($weight) );
+
+ $this->_weights = $weights;
+ }
+
+ /// bind per-field weights by name
+ function SetFieldWeights ( $weights )
+ {
+ assert ( is_array($weights) );
+ foreach ( $weights as $name=>$weight )
+ {
+ assert ( is_string($name) );
+ assert ( is_int($weight) );
+ }
+ $this->_fieldweights = $weights;
+ }
+
+ /// bind per-index weights by name
+ function SetIndexWeights ( $weights )
+ {
+ assert ( is_array($weights) );
+ foreach ( $weights as $index=>$weight )
+ {
+ assert ( is_string($index) );
+ assert ( is_int($weight) );
+ }
+ $this->_indexweights = $weights;
+ }
+
+ /// set IDs range to match
+ /// only match records if document ID is beetwen $min and $max (inclusive)
+ function SetIDRange ( $min, $max )
+ {
+ assert ( is_numeric($min) );
+ assert ( is_numeric($max) );
+ assert ( $min<=$max );
+ $this->_min_id = $min;
+ $this->_max_id = $max;
+ }
+
+ /// set values set filter
+ /// only match records where $attribute value is in given set
+ function SetFilter ( $attribute, $values, $exclude=false )
+ {
+ assert ( is_string($attribute) );
+ assert ( is_array($values) );
+ assert ( count($values) );
+
+ if ( is_array($values) && count($values) )
+ {
+ foreach ( $values as $value )
+ assert ( is_numeric($value) );
+
+ $this->_filters[] = array ( "type"=>SPH_FILTER_VALUES, "attr"=>$attribute, "exclude"=>$exclude, "values"=>$values );
+ }
+ }
+
+ /// set range filter
+ /// only match records if $attribute value is beetwen $min and $max (inclusive)
+ function SetFilterRange ( $attribute, $min, $max, $exclude=false )
+ {
+ assert ( is_string($attribute) );
+ assert ( is_numeric($min) );
+ assert ( is_numeric($max) );
+ assert ( $min<=$max );
+
+ $this->_filters[] = array ( "type"=>SPH_FILTER_RANGE, "attr"=>$attribute, "exclude"=>$exclude, "min"=>$min, "max"=>$max );
+ }
+
+ /// set float range filter
+ /// only match records if $attribute value is beetwen $min and $max (inclusive)
+ function SetFilterFloatRange ( $attribute, $min, $max, $exclude=false )
+ {
+ assert ( is_string($attribute) );
+ assert ( is_float($min) );
+ assert ( is_float($max) );
+ assert ( $min<=$max );
+
+ $this->_filters[] = array ( "type"=>SPH_FILTER_FLOATRANGE, "attr"=>$attribute, "exclude"=>$exclude, "min"=>$min, "max"=>$max );
+ }
+
+ /// setup anchor point for geosphere distance calculations
+ /// required to use @geodist in filters and sorting
+ /// latitude and longitude must be in radians
+ function SetGeoAnchor ( $attrlat, $attrlong, $lat, $long )
+ {
+ assert ( is_string($attrlat) );
+ assert ( is_string($attrlong) );
+ assert ( is_float($lat) );
+ assert ( is_float($long) );
+
+ $this->_anchor = array ( "attrlat"=>$attrlat, "attrlong"=>$attrlong, "lat"=>$lat, "long"=>$long );
+ }
+
+ /// set grouping attribute and function
+ function SetGroupBy ( $attribute, $func, $groupsort="@group desc" )
+ {
+ assert ( is_string($attribute) );
+ assert ( is_string($groupsort) );
+ assert ( $func==SPH_GROUPBY_DAY
+ || $func==SPH_GROUPBY_WEEK
+ || $func==SPH_GROUPBY_MONTH
+ || $func==SPH_GROUPBY_YEAR
+ || $func==SPH_GROUPBY_ATTR
+ || $func==SPH_GROUPBY_ATTRPAIR );
+
+ $this->_groupby = $attribute;
+ $this->_groupfunc = $func;
+ $this->_groupsort = $groupsort;
+ }
+
+ /// set count-distinct attribute for group-by queries
+ function SetGroupDistinct ( $attribute )
+ {
+ assert ( is_string($attribute) );
+ $this->_groupdistinct = $attribute;
+ }
+
+ /// set distributed retries count and delay
+ function SetRetries ( $count, $delay=0 )
+ {
+ assert ( is_int($count) && $count>=0 );
+ assert ( is_int($delay) && $delay>=0 );
+ $this->_retrycount = $count;
+ $this->_retrydelay = $delay;
+ }
+
+ /// set result set format (hash or array; hash by default)
+ /// PHP specific; needed for group-by-MVA result sets that may contain duplicate IDs
+ function SetArrayResult ( $arrayresult )
+ {
+ assert ( is_bool($arrayresult) );
+ $this->_arrayresult = $arrayresult;
+ }
+
+ /// set attribute values override
+ /// there can be only one override per attribute
+ /// $values must be a hash that maps document IDs to attribute values
+ function SetOverride ( $attrname, $attrtype, $values )
+ {
+ assert ( is_string ( $attrname ) );
+ assert ( in_array ( $attrtype, array ( SPH_ATTR_INTEGER, SPH_ATTR_TIMESTAMP, SPH_ATTR_BOOL, SPH_ATTR_FLOAT, SPH_ATTR_BIGINT ) ) );
+ assert ( is_array ( $values ) );
+
+ $this->_overrides[$attrname] = array ( "attr"=>$attrname, "type"=>$attrtype, "values"=>$values );
+ }
+
+ /// set select-list (attributes or expressions), SQL-like syntax
+ function SetSelect ( $select )
+ {
+ assert ( is_string ( $select ) );
+ $this->_select = $select;
+ }
+
+ //////////////////////////////////////////////////////////////////////////////
+
+ /// clear all filters (for multi-queries)
+ function ResetFilters ()
+ {
+ $this->_filters = array();
+ $this->_anchor = array();
+ }
+
+ /// clear groupby settings (for multi-queries)
+ function ResetGroupBy ()
+ {
+ $this->_groupby = "";
+ $this->_groupfunc = SPH_GROUPBY_DAY;
+ $this->_groupsort = "@group desc";
+ $this->_groupdistinct= "";
+ }
+
+ /// clear all attribute value overrides (for multi-queries)
+ function ResetOverrides ()
+ {
+ $this->_overrides = array ();
+ }
+
+ //////////////////////////////////////////////////////////////////////////////
+
+ /// connect to searchd server, run given search query through given indexes,
+ /// and return the search results
+ function Query ( $query, $index="*", $comment="" )
+ {
+ assert ( empty($this->_reqs) );
+
+ $this->AddQuery ( $query, $index, $comment );
+ $results = $this->RunQueries ();
+ $this->_reqs = array (); // just in case it failed too early
+
+ if ( !is_array($results) )
+ return false; // probably network error; error message should be already filled
+
+ $this->_error = $results[0]["error"];
+ $this->_warning = $results[0]["warning"];
+ if ( $results[0]["status"]==SEARCHD_ERROR )
+ return false;
+ else
+ return $results[0];
+ }
+
+ /// helper to pack floats in network byte order
+ function _PackFloat ( $f )
+ {
+ $t1 = pack ( "f", $f ); // machine order
+ list(,$t2) = unpack ( "L*", $t1 ); // int in machine order
+ return pack ( "N", $t2 );
+ }
+
+ /// add query to multi-query batch
+ /// returns index into results array from RunQueries() call
+ function AddQuery ( $query, $index="*", $comment="" )
+ {
+ // mbstring workaround
+ $this->_MBPush ();
+
+ // build request
+ $req = pack ( "NNNN", $this->_offset, $this->_limit, $this->_mode, $this->_ranker );
+ if ( $this->_ranker==SPH_RANK_EXPR )
+ $req .= pack ( "N", strlen($this->_rankexpr) ) . $this->_rankexpr;
+ $req .= pack ( "N", $this->_sort ); // (deprecated) sort mode
+ $req .= pack ( "N", strlen($this->_sortby) ) . $this->_sortby;
+ $req .= pack ( "N", strlen($query) ) . $query; // query itself
+ $req .= pack ( "N", count($this->_weights) ); // weights
+ foreach ( $this->_weights as $weight )
+ $req .= pack ( "N", (int)$weight );
+ $req .= pack ( "N", strlen($index) ) . $index; // indexes
+ $req .= pack ( "N", 1 ); // id64 range marker
+ $req .= sphPackU64 ( $this->_min_id ) . sphPackU64 ( $this->_max_id ); // id64 range
+
+ // filters
+ $req .= pack ( "N", count($this->_filters) );
+ foreach ( $this->_filters as $filter )
+ {
+ $req .= pack ( "N", strlen($filter["attr"]) ) . $filter["attr"];
+ $req .= pack ( "N", $filter["type"] );
+ switch ( $filter["type"] )
+ {
+ case SPH_FILTER_VALUES:
+ $req .= pack ( "N", count($filter["values"]) );
+ foreach ( $filter["values"] as $value )
+ $req .= sphPackI64 ( $value );
+ break;
+
+ case SPH_FILTER_RANGE:
+ $req .= sphPackI64 ( $filter["min"] ) . sphPackI64 ( $filter["max"] );
+ break;
+
+ case SPH_FILTER_FLOATRANGE:
+ $req .= $this->_PackFloat ( $filter["min"] ) . $this->_PackFloat ( $filter["max"] );
+ break;
+
+ default:
+ assert ( 0 && "internal error: unhandled filter type" );
+ }
+ $req .= pack ( "N", $filter["exclude"] );
+ }
+
+ // group-by clause, max-matches count, group-sort clause, cutoff count
+ $req .= pack ( "NN", $this->_groupfunc, strlen($this->_groupby) ) . $this->_groupby;
+ $req .= pack ( "N", $this->_maxmatches );
+ $req .= pack ( "N", strlen($this->_groupsort) ) . $this->_groupsort;
+ $req .= pack ( "NNN", $this->_cutoff, $this->_retrycount, $this->_retrydelay );
+ $req .= pack ( "N", strlen($this->_groupdistinct) ) . $this->_groupdistinct;
+
+ // anchor point
+ if ( empty($this->_anchor) )
+ {
+ $req .= pack ( "N", 0 );
+ } else
+ {
+ $a =& $this->_anchor;
+ $req .= pack ( "N", 1 );
+ $req .= pack ( "N", strlen($a["attrlat"]) ) . $a["attrlat"];
+ $req .= pack ( "N", strlen($a["attrlong"]) ) . $a["attrlong"];
+ $req .= $this->_PackFloat ( $a["lat"] ) . $this->_PackFloat ( $a["long"] );
+ }
+
+ // per-index weights
+ $req .= pack ( "N", count($this->_indexweights) );
+ foreach ( $this->_indexweights as $idx=>$weight )
+ $req .= pack ( "N", strlen($idx) ) . $idx . pack ( "N", $weight );
+
+ // max query time
+ $req .= pack ( "N", $this->_maxquerytime );
+
+ // per-field weights
+ $req .= pack ( "N", count($this->_fieldweights) );
+ foreach ( $this->_fieldweights as $field=>$weight )
+ $req .= pack ( "N", strlen($field) ) . $field . pack ( "N", $weight );
+
+ // comment
+ $req .= pack ( "N", strlen($comment) ) . $comment;
+
+ // attribute overrides
+ $req .= pack ( "N", count($this->_overrides) );
+ foreach ( $this->_overrides as $key => $entry )
+ {
+ $req .= pack ( "N", strlen($entry["attr"]) ) . $entry["attr"];
+ $req .= pack ( "NN", $entry["type"], count($entry["values"]) );
+ foreach ( $entry["values"] as $id=>$val )
+ {
+ assert ( is_numeric($id) );
+ assert ( is_numeric($val) );
+
+ $req .= sphPackU64 ( $id );
+ switch ( $entry["type"] )
+ {
+ case SPH_ATTR_FLOAT: $req .= $this->_PackFloat ( $val ); break;
+ case SPH_ATTR_BIGINT: $req .= sphPackI64 ( $val ); break;
+ default: $req .= pack ( "N", $val ); break;
+ }
+ }
+ }
+
+ // select-list
+ $req .= pack ( "N", strlen($this->_select) ) . $this->_select;
+
+ // mbstring workaround
+ $this->_MBPop ();
+
+ // store request to requests array
+ $this->_reqs[] = $req;
+ return count($this->_reqs)-1;
+ }
+
+ /// connect to searchd, run queries batch, and return an array of result sets
+ function RunQueries ()
+ {
+ if ( empty($this->_reqs) )
+ {
+ $this->_error = "no queries defined, issue AddQuery() first";
+ return false;
+ }
+
+ // mbstring workaround
+ $this->_MBPush ();
+
+ if (!( $fp = $this->_Connect() ))
+ {
+ $this->_MBPop ();
+ return false;
+ }
+
+ // send query, get response
+ $nreqs = count($this->_reqs);
+ $req = join ( "", $this->_reqs );
+ $len = 8+strlen($req);
+ $req = pack ( "nnNNN", SEARCHD_COMMAND_SEARCH, VER_COMMAND_SEARCH, $len, 0, $nreqs ) . $req; // add header
+
+ if ( !( $this->_Send ( $fp, $req, $len+8 ) ) ||
+ !( $response = $this->_GetResponse ( $fp, VER_COMMAND_SEARCH ) ) )
+ {
+ $this->_MBPop ();
+ return false;
+ }
+
+ // query sent ok; we can reset reqs now
+ $this->_reqs = array ();
+
+ // parse and return response
+ return $this->_ParseSearchResponse ( $response, $nreqs );
+ }
+
+ /// parse and return search query (or queries) response
+ function _ParseSearchResponse ( $response, $nreqs )
+ {
+ $p = 0; // current position
+ $max = strlen($response); // max position for checks, to protect against broken responses
+
+ $results = array ();
+ for ( $ires=0; $ires<$nreqs && $p<$max; $ires++ )
+ {
+ $results[] = array();
+ $result =& $results[$ires];
+
+ $result["error"] = "";
+ $result["warning"] = "";
+
+ // extract status
+ list(,$status) = unpack ( "N*", substr ( $response, $p, 4 ) ); $p += 4;
+ $result["status"] = $status;
+ if ( $status!=SEARCHD_OK )
+ {
+ list(,$len) = unpack ( "N*", substr ( $response, $p, 4 ) ); $p += 4;
+ $message = substr ( $response, $p, $len ); $p += $len;
+
+ if ( $status==SEARCHD_WARNING )
+ {
+ $result["warning"] = $message;
+ } else
+ {
+ $result["error"] = $message;
+ continue;
+ }
+ }
+
+ // read schema
+ $fields = array ();
+ $attrs = array ();
+
+ list(,$nfields) = unpack ( "N*", substr ( $response, $p, 4 ) ); $p += 4;
+ while ( $nfields-->0 && $p<$max )
+ {
+ list(,$len) = unpack ( "N*", substr ( $response, $p, 4 ) ); $p += 4;
+ $fields[] = substr ( $response, $p, $len ); $p += $len;
+ }
+ $result["fields"] = $fields;
+
+ list(,$nattrs) = unpack ( "N*", substr ( $response, $p, 4 ) ); $p += 4;
+ while ( $nattrs-->0 && $p<$max )
+ {
+ list(,$len) = unpack ( "N*", substr ( $response, $p, 4 ) ); $p += 4;
+ $attr = substr ( $response, $p, $len ); $p += $len;
+ list(,$type) = unpack ( "N*", substr ( $response, $p, 4 ) ); $p += 4;
+ $attrs[$attr] = $type;
+ }
+ $result["attrs"] = $attrs;
+
+ // read match count
+ list(,$count) = unpack ( "N*", substr ( $response, $p, 4 ) ); $p += 4;
+ list(,$id64) = unpack ( "N*", substr ( $response, $p, 4 ) ); $p += 4;
+
+ // read matches
+ $idx = -1;
+ while ( $count-->0 && $p<$max )
+ {
+ // index into result array
+ $idx++;
+
+ // parse document id and weight
+ if ( $id64 )
+ {
+ $doc = sphUnpackU64 ( substr ( $response, $p, 8 ) ); $p += 8;
+ list(,$weight) = unpack ( "N*", substr ( $response, $p, 4 ) ); $p += 4;
+ }
+ else
+ {
+ list ( $doc, $weight ) = array_values ( unpack ( "N*N*",
+ substr ( $response, $p, 8 ) ) );
+ $p += 8;
+ $doc = sphFixUint($doc);
+ }
+ $weight = sprintf ( "%u", $weight );
+
+ // create match entry
+ if ( $this->_arrayresult )
+ $result["matches"][$idx] = array ( "id"=>$doc, "weight"=>$weight );
+ else
+ $result["matches"][$doc]["weight"] = $weight;
+
+ // parse and create attributes
+ $attrvals = array ();
+ foreach ( $attrs as $attr=>$type )
+ {
+ // handle 64bit ints
+ if ( $type==SPH_ATTR_BIGINT )
+ {
+ $attrvals[$attr] = sphUnpackI64 ( substr ( $response, $p, 8 ) ); $p += 8;
+ continue;
+ }
+
+ // handle floats
+ if ( $type==SPH_ATTR_FLOAT )
+ {
+ list(,$uval) = unpack ( "N*", substr ( $response, $p, 4 ) ); $p += 4;
+ list(,$fval) = unpack ( "f*", pack ( "L", $uval ) );
+ $attrvals[$attr] = $fval;
+ continue;
+ }
+
+ // handle everything else as unsigned ints
+ list(,$val) = unpack ( "N*", substr ( $response, $p, 4 ) ); $p += 4;
+ if ( $type==SPH_ATTR_MULTI )
+ {
+ $attrvals[$attr] = array ();
+ $nvalues = $val;
+ while ( $nvalues-->0 && $p<$max )
+ {
+ list(,$val) = unpack ( "N*", substr ( $response, $p, 4 ) ); $p += 4;
+ $attrvals[$attr][] = sphFixUint($val);
+ }
+ } else if ( $type==SPH_ATTR_MULTI64 )
+ {
+ $attrvals[$attr] = array ();
+ $nvalues = $val;
+ while ( $nvalues>0 && $p<$max )
+ {
+ $attrvals[$attr][] = sphUnpackU64 ( substr ( $response, $p, 8 ) ); $p += 8;
+ $nvalues -= 2;
+ }
+ } else if ( $type==SPH_ATTR_STRING )
+ {
+ $attrvals[$attr] = substr ( $response, $p, $val );
+ $p += $val;
+ } else
+ {
+ $attrvals[$attr] = sphFixUint($val);
+ }
+ }
+
+ if ( $this->_arrayresult )
+ $result["matches"][$idx]["attrs"] = $attrvals;
+ else
+ $result["matches"][$doc]["attrs"] = $attrvals;
+ }
+
+ list ( $total, $total_found, $msecs, $words ) =
+ array_values ( unpack ( "N*N*N*N*", substr ( $response, $p, 16 ) ) );
+ $result["total"] = sprintf ( "%u", $total );
+ $result["total_found"] = sprintf ( "%u", $total_found );
+ $result["time"] = sprintf ( "%.3f", $msecs/1000 );
+ $p += 16;
+
+ while ( $words-->0 && $p<$max )
+ {
+ list(,$len) = unpack ( "N*", substr ( $response, $p, 4 ) ); $p += 4;
+ $word = substr ( $response, $p, $len ); $p += $len;
+ list ( $docs, $hits ) = array_values ( unpack ( "N*N*", substr ( $response, $p, 8 ) ) ); $p += 8;
+ $result["words"][$word] = array (
+ "docs"=>sprintf ( "%u", $docs ),
+ "hits"=>sprintf ( "%u", $hits ) );
+ }
+ }
+
+ $this->_MBPop ();
+ return $results;
+ }
+
+ /////////////////////////////////////////////////////////////////////////////
+ // excerpts generation
+ /////////////////////////////////////////////////////////////////////////////
+
+ /// connect to searchd server, and generate exceprts (snippets)
+ /// of given documents for given query. returns false on failure,
+ /// an array of snippets on success
+ function BuildExcerpts ( $docs, $index, $words, $opts=array() )
+ {
+ assert ( is_array($docs) );
+ assert ( is_string($index) );
+ assert ( is_string($words) );
+ assert ( is_array($opts) );
+
+ $this->_MBPush ();
+
+ if (!( $fp = $this->_Connect() ))
+ {
+ $this->_MBPop();
+ return false;
+ }
+
+ /////////////////
+ // fixup options
+ /////////////////
+
+ if ( !isset($opts["before_match"]) ) $opts["before_match"] = "<b>";
+ if ( !isset($opts["after_match"]) ) $opts["after_match"] = "</b>";
+ if ( !isset($opts["chunk_separator"]) ) $opts["chunk_separator"] = " ... ";
+ if ( !isset($opts["limit"]) ) $opts["limit"] = 256;
+ if ( !isset($opts["limit_passages"]) ) $opts["limit_passages"] = 0;
+ if ( !isset($opts["limit_words"]) ) $opts["limit_words"] = 0;
+ if ( !isset($opts["around"]) ) $opts["around"] = 5;
+ if ( !isset($opts["exact_phrase"]) ) $opts["exact_phrase"] = false;
+ if ( !isset($opts["single_passage"]) ) $opts["single_passage"] = false;
+ if ( !isset($opts["use_boundaries"]) ) $opts["use_boundaries"] = false;
+ if ( !isset($opts["weight_order"]) ) $opts["weight_order"] = false;
+ if ( !isset($opts["query_mode"]) ) $opts["query_mode"] = false;
+ if ( !isset($opts["force_all_words"]) ) $opts["force_all_words"] = false;
+ if ( !isset($opts["start_passage_id"]) ) $opts["start_passage_id"] = 1;
+ if ( !isset($opts["load_files"]) ) $opts["load_files"] = false;
+ if ( !isset($opts["html_strip_mode"]) ) $opts["html_strip_mode"] = "index";
+ if ( !isset($opts["allow_empty"]) ) $opts["allow_empty"] = false;
+ if ( !isset($opts["passage_boundary"]) ) $opts["passage_boundary"] = "none";
+ if ( !isset($opts["emit_zones"]) ) $opts["emit_zones"] = false;
+ if ( !isset($opts["load_files_scattered"]) ) $opts["load_files_scattered"] = false;
+
+
+ /////////////////
+ // build request
+ /////////////////
+
+ // v.1.2 req
+ $flags = 1; // remove spaces
+ if ( $opts["exact_phrase"] ) $flags |= 2;
+ if ( $opts["single_passage"] ) $flags |= 4;
+ if ( $opts["use_boundaries"] ) $flags |= 8;
+ if ( $opts["weight_order"] ) $flags |= 16;
+ if ( $opts["query_mode"] ) $flags |= 32;
+ if ( $opts["force_all_words"] ) $flags |= 64;
+ if ( $opts["load_files"] ) $flags |= 128;
+ if ( $opts["allow_empty"] ) $flags |= 256;
+ if ( $opts["emit_zones"] ) $flags |= 512;
+ if ( $opts["load_files_scattered"] ) $flags |= 1024;
+ $req = pack ( "NN", 0, $flags ); // mode=0, flags=$flags
+ $req .= pack ( "N", strlen($index) ) . $index; // req index
+ $req .= pack ( "N", strlen($words) ) . $words; // req words
+
+ // options
+ $req .= pack ( "N", strlen($opts["before_match"]) ) . $opts["before_match"];
+ $req .= pack ( "N", strlen($opts["after_match"]) ) . $opts["after_match"];
+ $req .= pack ( "N", strlen($opts["chunk_separator"]) ) . $opts["chunk_separator"];
+ $req .= pack ( "NN", (int)$opts["limit"], (int)$opts["around"] );
+ $req .= pack ( "NNN", (int)$opts["limit_passages"], (int)$opts["limit_words"], (int)$opts["start_passage_id"] ); // v.1.2
+ $req .= pack ( "N", strlen($opts["html_strip_mode"]) ) . $opts["html_strip_mode"];
+ $req .= pack ( "N", strlen($opts["passage_boundary"]) ) . $opts["passage_boundary"];
+
+ // documents
+ $req .= pack ( "N", count($docs) );
+ foreach ( $docs as $doc )
+ {
+ assert ( is_string($doc) );
+ $req .= pack ( "N", strlen($doc) ) . $doc;
+ }
+
+ ////////////////////////////
+ // send query, get response
+ ////////////////////////////
+
+ $len = strlen($req);
+ $req = pack ( "nnN", SEARCHD_COMMAND_EXCERPT, VER_COMMAND_EXCERPT, $len ) . $req; // add header
+ if ( !( $this->_Send ( $fp, $req, $len+8 ) ) ||
+ !( $response = $this->_GetResponse ( $fp, VER_COMMAND_EXCERPT ) ) )
+ {
+ $this->_MBPop ();
+ return false;
+ }
+
+ //////////////////
+ // parse response
+ //////////////////
+
+ $pos = 0;
+ $res = array ();
+ $rlen = strlen($response);
+ for ( $i=0; $i<count($docs); $i++ )
+ {
+ list(,$len) = unpack ( "N*", substr ( $response, $pos, 4 ) );
+ $pos += 4;
+
+ if ( $pos+$len > $rlen )
+ {
+ $this->_error = "incomplete reply";
+ $this->_MBPop ();
+ return false;
+ }
+ $res[] = $len ? substr ( $response, $pos, $len ) : "";
+ $pos += $len;
+ }
+
+ $this->_MBPop ();
+ return $res;
+ }
+
+
+ /////////////////////////////////////////////////////////////////////////////
+ // keyword generation
+ /////////////////////////////////////////////////////////////////////////////
+
+ /// connect to searchd server, and generate keyword list for a given query
+ /// returns false on failure,
+ /// an array of words on success
+ function BuildKeywords ( $query, $index, $hits )
+ {
+ assert ( is_string($query) );
+ assert ( is_string($index) );
+ assert ( is_bool($hits) );
+
+ $this->_MBPush ();
+
+ if (!( $fp = $this->_Connect() ))
+ {
+ $this->_MBPop();
+ return false;
+ }
+
+ /////////////////
+ // build request
+ /////////////////
+
+ // v.1.0 req
+ $req = pack ( "N", strlen($query) ) . $query; // req query
+ $req .= pack ( "N", strlen($index) ) . $index; // req index
+ $req .= pack ( "N", (int)$hits );
+
+ ////////////////////////////
+ // send query, get response
+ ////////////////////////////
+
+ $len = strlen($req);
+ $req = pack ( "nnN", SEARCHD_COMMAND_KEYWORDS, VER_COMMAND_KEYWORDS, $len ) . $req; // add header
+ if ( !( $this->_Send ( $fp, $req, $len+8 ) ) ||
+ !( $response = $this->_GetResponse ( $fp, VER_COMMAND_KEYWORDS ) ) )
+ {
+ $this->_MBPop ();
+ return false;
+ }
+
+ //////////////////
+ // parse response
+ //////////////////
+
+ $pos = 0;
+ $res = array ();
+ $rlen = strlen($response);
+ list(,$nwords) = unpack ( "N*", substr ( $response, $pos, 4 ) );
+ $pos += 4;
+ for ( $i=0; $i<$nwords; $i++ )
+ {
+ list(,$len) = unpack ( "N*", substr ( $response, $pos, 4 ) ); $pos += 4;
+ $tokenized = $len ? substr ( $response, $pos, $len ) : "";
+ $pos += $len;
+
+ list(,$len) = unpack ( "N*", substr ( $response, $pos, 4 ) ); $pos += 4;
+ $normalized = $len ? substr ( $response, $pos, $len ) : "";
+ $pos += $len;
+
+ $res[] = array ( "tokenized"=>$tokenized, "normalized"=>$normalized );
+
+ if ( $hits )
+ {
+ list($ndocs,$nhits) = array_values ( unpack ( "N*N*", substr ( $response, $pos, 8 ) ) );
+ $pos += 8;
+ $res [$i]["docs"] = $ndocs;
+ $res [$i]["hits"] = $nhits;
+ }
+
+ if ( $pos > $rlen )
+ {
+ $this->_error = "incomplete reply";
+ $this->_MBPop ();
+ return false;
+ }
+ }
+
+ $this->_MBPop ();
+ return $res;
+ }
+
+ function EscapeString ( $string )
+ {
+ $from = array ( '\\', '(',')','|','-','!','@','~','"','&', '/', '^', '$', '=' );
+ $to = array ( '\\\\', '\(','\)','\|','\-','\!','\@','\~','\"', '\&', '\/', '\^', '\$', '\=' );
+
+ return str_replace ( $from, $to, $string );
+ }
+
+ /////////////////////////////////////////////////////////////////////////////
+ // attribute updates
+ /////////////////////////////////////////////////////////////////////////////
+
+ /// batch update given attributes in given rows in given indexes
+ /// returns amount of updated documents (0 or more) on success, or -1 on failure
+ function UpdateAttributes ( $index, $attrs, $values, $mva=false )
+ {
+ // verify everything
+ assert ( is_string($index) );
+ assert ( is_bool($mva) );
+
+ assert ( is_array($attrs) );
+ foreach ( $attrs as $attr )
+ assert ( is_string($attr) );
+
+ assert ( is_array($values) );
+ foreach ( $values as $id=>$entry )
+ {
+ assert ( is_numeric($id) );
+ assert ( is_array($entry) );
+ assert ( count($entry)==count($attrs) );
+ foreach ( $entry as $v )
+ {
+ if ( $mva )
+ {
+ assert ( is_array($v) );
+ foreach ( $v as $vv )
+ assert ( is_int($vv) );
+ } else
+ assert ( is_int($v) );
+ }
+ }
+
+ // build request
+ $this->_MBPush ();
+ $req = pack ( "N", strlen($index) ) . $index;
+
+ $req .= pack ( "N", count($attrs) );
+ foreach ( $attrs as $attr )
+ {
+ $req .= pack ( "N", strlen($attr) ) . $attr;
+ $req .= pack ( "N", $mva ? 1 : 0 );
+ }
+
+ $req .= pack ( "N", count($values) );
+ foreach ( $values as $id=>$entry )
+ {
+ $req .= sphPackU64 ( $id );
+ foreach ( $entry as $v )
+ {
+ $req .= pack ( "N", $mva ? count($v) : $v );
+ if ( $mva )
+ foreach ( $v as $vv )
+ $req .= pack ( "N", $vv );
+ }
+ }
+
+ // connect, send query, get response
+ if (!( $fp = $this->_Connect() ))
+ {
+ $this->_MBPop ();
+ return -1;
+ }
+
+ $len = strlen($req);
+ $req = pack ( "nnN", SEARCHD_COMMAND_UPDATE, VER_COMMAND_UPDATE, $len ) . $req; // add header
+ if ( !$this->_Send ( $fp, $req, $len+8 ) )
+ {
+ $this->_MBPop ();
+ return -1;
+ }
+
+ if (!( $response = $this->_GetResponse ( $fp, VER_COMMAND_UPDATE ) ))
+ {
+ $this->_MBPop ();
+ return -1;
+ }
+
+ // parse response
+ list(,$updated) = unpack ( "N*", substr ( $response, 0, 4 ) );
+ $this->_MBPop ();
+ return $updated;
+ }
+
+ /////////////////////////////////////////////////////////////////////////////
+ // persistent connections
+ /////////////////////////////////////////////////////////////////////////////
+
+ function Open()
+ {
+ if ( $this->_socket !== false )
+ {
+ $this->_error = 'already connected';
+ return false;
+ }
+ if ( !$fp = $this->_Connect() )
+ return false;
+
+ // command, command version = 0, body length = 4, body = 1
+ $req = pack ( "nnNN", SEARCHD_COMMAND_PERSIST, 0, 4, 1 );
+ if ( !$this->_Send ( $fp, $req, 12 ) )
+ return false;
+
+ $this->_socket = $fp;
+ return true;
+ }
+
+ function Close()
+ {
+ if ( $this->_socket === false )
+ {
+ $this->_error = 'not connected';
+ return false;
+ }
+
+ fclose ( $this->_socket );
+ $this->_socket = false;
+
+ return true;
+ }
+
+ //////////////////////////////////////////////////////////////////////////
+ // status
+ //////////////////////////////////////////////////////////////////////////
+
+ function Status ()
+ {
+ $this->_MBPush ();
+ if (!( $fp = $this->_Connect() ))
+ {
+ $this->_MBPop();
+ return false;
+ }
+
+ $req = pack ( "nnNN", SEARCHD_COMMAND_STATUS, VER_COMMAND_STATUS, 4, 1 ); // len=4, body=1
+ if ( !( $this->_Send ( $fp, $req, 12 ) ) ||
+ !( $response = $this->_GetResponse ( $fp, VER_COMMAND_STATUS ) ) )
+ {
+ $this->_MBPop ();
+ return false;
+ }
+
+ $res = substr ( $response, 4 ); // just ignore length, error handling, etc
+ $p = 0;
+ list ( $rows, $cols ) = array_values ( unpack ( "N*N*", substr ( $response, $p, 8 ) ) ); $p += 8;
+
+ $res = array();
+ for ( $i=0; $i<$rows; $i++ )
+ for ( $j=0; $j<$cols; $j++ )
+ {
+ list(,$len) = unpack ( "N*", substr ( $response, $p, 4 ) ); $p += 4;
+ $res[$i][] = substr ( $response, $p, $len ); $p += $len;
+ }
+
+ $this->_MBPop ();
+ return $res;
+ }
+
+ //////////////////////////////////////////////////////////////////////////
+ // flush
+ //////////////////////////////////////////////////////////////////////////
+
+ function FlushAttributes ()
+ {
+ $this->_MBPush ();
+ if (!( $fp = $this->_Connect() ))
+ {
+ $this->_MBPop();
+ return -1;
+ }
+
+ $req = pack ( "nnN", SEARCHD_COMMAND_FLUSHATTRS, VER_COMMAND_FLUSHATTRS, 0 ); // len=0
+ if ( !( $this->_Send ( $fp, $req, 8 ) ) ||
+ !( $response = $this->_GetResponse ( $fp, VER_COMMAND_FLUSHATTRS ) ) )
+ {
+ $this->_MBPop ();
+ return -1;
+ }
+
+ $tag = -1;
+ if ( strlen($response)==4 )
+ list(,$tag) = unpack ( "N*", $response );
+ else
+ $this->_error = "unexpected response length";
+
+ $this->_MBPop ();
+ return $tag;
+ }
+}
+
+//
+// $Id: sphinxapi.php 3087 2012-01-30 23:07:35Z shodan $
+//
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