From e5f89165cb59702156473226f331c39ee4c43318 Mon Sep 17 00:00:00 2001
From: Eric Fawcett <eric.fawcett@gmail.com>
Date: Wed, 12 Aug 2020 19:55:48 -0400
Subject: [PATCH] replace random image captcha with Google reCaptcha v2

---
 captcha/background1.jpg | Bin 1850 -> 0 bytes
 captcha/background2.jpg | Bin 1256 -> 0 bytes
 captcha/background3.jpg | Bin 1176 -> 0 bytes
 captcha/background4.jpg | Bin 3649 -> 0 bytes
 captcha/randomimage.php |  52 ----------------------------------------
 sendform.php            |  31 +++++++++++++++++++++---
 6 files changed, 28 insertions(+), 55 deletions(-)
 delete mode 100644 captcha/background1.jpg
 delete mode 100644 captcha/background2.jpg
 delete mode 100644 captcha/background3.jpg
 delete mode 100644 captcha/background4.jpg
 delete mode 100644 captcha/randomimage.php

diff --git a/captcha/background1.jpg b/captcha/background1.jpg
deleted file mode 100644
index dd81850997012115f35fa5b04f3d27db4768c594..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 1850
zcmbW!c{H1e769<?%R)kwphnVI6Kxnw6Cp@D)5Zv)t$k^<)6%r6hT6%LTB^E<B`OFy
zua;4&T5YJMQ~MTS25k{DqtS>dI+kgv;&{CG&b)KpU+=wp&;9G(bI<*qyEV4;8c=g$
zFc|;{g23tR1hyssI{=}epr`;xC@Lx<kq9M}rV2_~8HG{TP}S7I>gnoWaX5W~`96I^
zQ#=kwq#B#<Cs8OAy?r(Zt;q+>EhyxjB_I-sL@A@RRaCUe1~>!q{~TMb02%@40tcX=
zApk*xP&ByJ3FrX;2;aVT=iq+@2!X=j3W^A%lJfRIof-fEp->163WvjB+tUf#eE^1r
zs~eCGD`>d+D;kDtl9RLVBJlLuw%zVSiv){+h!muf)@RxntkK?mL}L?*r4`lM#@6m@
zdxnD})5*ir%iG8IIO`1i?76`6K^G#UqGMv?INx1Ky_$CI`i+~soZGqly!-+|NoiU6
z4;A++s~$fQ*4004Xl!cl=<Mq5>FpB@kGy#KYIJN|BAt38o0iY~{&se0`Oo(sR#rc*
zecEw>0Q8@%zhwX6LT|euFc=i3xZ?sLvD*bj!{7!a1@*&jivHmmhU8>~CO!LZZ5tAA
z;l8*#AYw>Ki$IYYE$z_$A^Y!ODgT%3FWA3b5&#7Sx1R?^1788Fw6$SvSB{w1Jf%Iw
zR<$60F@5hc(uDhwEjxqPUGejqh^t^mBjU$~=Y_7!C<w1G2GBKY%T)y*QPJG4ImWWF
z>?T59gkebqX8f~L*1Lw*l4MB@9?cPFhr)bfMtTMkgTn)<*P^vUDVyd84Ver1!rGI@
zD(ii*3O0vC(u_4My>+8Ew#DLB&d9~Nlj2!UVN+evjk3MPCck{szY+n<RA*|YHYJs_
z!^*FGi|3en?nn9Ncx_PQo64(KNalAhnjSKHflUn^q~7b8@(HMlu~x!d)6e2m(~t{B
zFUv+BQYOZ0%#V1FbfMFYn(b)}v~Hk1Se{;s7(BL!(8Jev(w7f1<8KvwD{oBx`e%`7
z{-HspI=`>Y(}AnpO{K6&HYa9?%z>2;zj6{CrEa-Sd6F+fC6@(t<EwwLMnBj@9o#$T
zF3@2<fYjdhZRGo&P>b(6t{GpdT2!3xww%=i7k*01^q0=5cv_0{cmxY^4pZ)6ohi2I
zj;)N!IZ#!Vwcit)@@ZJ|s$077?)`hg0!bud5xn3t*(cl8T+dEK5|3M4)1z9}g_w-^
z3{^PJzk5(o&waK&@iG3k!0PyccD6lZZ17aLhi=3v6t~_von2So^6L9VRgW*C3T1r3
z^GUNi{O^AM^uhM?Jgd*t%A1{ao}uq=^0Z6+2~HSaM(NC&GouGstg1o=pq^sIS{e9;
z`W7D>eTP8P4)D5S)P>eSOq)#`2J(pVjwP9GCklpT_AUL_2PnK=T$j9=&@Aw1!f02B
zs;zQqvBW)3g1ny&KXK+<B4qQpvPtHyUy9qDx<zCtO5GxzeW$J@CsCOehz$?&c9{-t
znY*756GJ-FC~OR&_jkNXq2+{yP7_-K9g2MutIu~!8>){vr}t^5)+}Z1NzloEQOArf
zr1^)0WmkK9(0QBHXza7A8j&;(7sh^ETw>YtTc0F`{F`kbKk{=))e{ZueTLrcUe#3x
zx9r9w>%rioWqy*N<+2$5P{G3GpQXt>D*>H6f8~5)L6hF0$vE#DH5G%Rk|5#4Mos<5
zH*dFq4qy2nl!U`|Z_bUfirasb<&isrwI&>2^N#>O{YWCGTa$_^JLY4JCMz2mnbA@q
zr^cs0EhaVB!X!n621AvfBLYfcJV&Te&7Fmc$MzJH*>lNzdQA+D`LHjYAlFQLtTu-~
zou0TLIwd?B#<K~&#ni&!h+d{{xLk}i%o@i_SRbx5K3_WOGPjYDZzuS2d2*x0ZlC?t
zP|Dkjcl|caG1(=~L0Nb^;niJk{oM5{kMx1IwCMn_GSpqg#nZ7&uo+?|@oKoylZO(!
z5*<)bTmLa`i?K;W9Ba%?Z~S$<+TSX{IN8!>u*sAhRxcPZ>+gXLu^b5zt(==l(Su8Q
zu8|qa(F;8utGJ>8qv^K~gtG&0$`U$-tlgA;m9IK{s9CIPtJV-dzl*}&Bh8{rQn!4N
z9a1Qg!J&lHD(l9l!^8MPungk@rWbhfC$a3zLvg3Z=IfXA?%;&Wl08LY9vujD`Bm#r
z18;na;|bfMz%;kMR?C2+*mk+krGA><4}D`Jbe&umTCCMEsuo@wPy?o#^vj;>aA({-
LVhcmQ-x~irKVmIw

diff --git a/captcha/background2.jpg b/captcha/background2.jpg
deleted file mode 100644
index a4d81a9bd4e0ca68730c019cf811ae5ad9b7f8d2..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 1256
zcmex=<NpH&0WUXCHwH#VMur3+WcYuZ!I^=Bjg6g+m4ls~os*M;i${c)hnt&6Qb?Fz
zL{>^(PF6}rMnOeST|r4lSw=>~TvNxu(8R<<Uft5x!pKI?*u)5A2qPyaCl5D|1TU|I
zk)n*E5y{~H0R}-11~~>BW=16jCP7AKLB{__7~~lk7+Ha?1vwZB7@3$^SlQS)IJvli
z3bqO`FflSSGqEtUva+xMRo4RL8CV2ag%k}P*@OcV*_8@Kj2b5{<WP3ncu+Lx;s+Ju
zq@pHHE-`TlNhwt|bq!4|6H_yD3rj0!7gslT4^OY)kkGL3h{&kql+?8JjLfX!lG3vB
zipr|yme#iRj?S)0lc!9bHhsp-S&J4gS-Ncbij}K2ZQinV+x8thcO5!><mj>ECr+Na
zbot8FYu9hwy!G(W<0ns_J%91?)yGetzkL1n{m0K=Ab&A3Fhjfr_ZgbM1cClyVqsxs
zVF&q(k*OSrnFU!`6%E;h90S=C3x$=88aYIqCNA7~kW<+>=!0ld(M2vX6_bamA3<IN
z`;0h`HId~rxW^Fwy2Zf5%m|D;W<dsfhOcwOy*|6BS+Ce&p0cfWFXNgYI!C8I$ydF)
zli8B7!`AQ)*WF#)Cs{o9$+Mm@chBRc#j`eOmn~@GJ9zNdtk;J;9~JyN=6814tha>^
zHqMxJqrIuh>3nqds(t?%jPo>w%5Dp<X}`#qb;{RtUVVA*e}?<)+y67H+qlQ(<8hU9
z??QTa9Df}C)z(Ym&)TE+Enirbd|fYOS$z0$s8yEV-P~n&kK34NK8oe=`V?!j@A{4H
z62DXWK3O;)cRg2sPHWvl+ikP04jX%&IlV)~!Oh6M_-**KyKf#%^5mL${O*4SyRUA~
zG}g=5o^c9i&Pei5s48$+^HfIH>QcoDyYQ{+%YJ>`_OGq5BIC-|ko(njteRWpw;V{k
zeCuJ_9f^6uPZ|0a?)6ymo4sTI{=)wZjmrNSy4Fhjs_{O2Bo~?BUi|0$*8K4GEyn^v
zeim%}9$x!?_p2&yQ7%uno^btn{~2aZuU`>$D`v*?>B#~Tyh}d*;HutSJI#7^nuBCf
zbiNLs;jIldq5l~aJ@&uu_|I@*)|M>`zKfmY_PAX$^_ZW-G3#)XPd6Su`Y1B{`J~#l
z>-JwgaU`&(;KQuDJrgP??f!D-$fHHs+}T^wc4WFwE7%t)`}w-P*R_9V{xdAQ|Kt6C
zhPc)D`V}Xsa*1cCbFuj=n@;7r@l~>TZ|<`D3m*j@vNC-fH?24RW0+cBiF)A)E;mon
zke_bq3PwAQU5K{)`ZlbGQ*O>VBkxs{=UsK%6V90^ukvW_*XzGNnXlLMEIM5+vOYgA
zS1D3q%3`+TD_&GfE&tEJ$+q%8gMIu@-ugpZ{y64~RJjPPdU(tA<jH?8*QM=y&FnX2
Yh3ks-JH8vmDD{bdUuj;x?)m?l0OJl5L;wH)

diff --git a/captcha/background3.jpg b/captcha/background3.jpg
deleted file mode 100644
index 62aa1155a715293775c0e2170c82760a1baebc10..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 1176
zcmex=<NpH&0WUXCHwH#VMur3+WcYuZ!I^=Bjg6g+m4ls~os*M;i${c)hnt&6Qb?Fz
zL{>^(PF6}rMnOeST|r4lSw=>~TvNxu(8R<<Uft5x!pKI?*u)5A2qPyaCl5D|1TU|I
zk)n*E5y{~H0R}-11~~>BW=16jCP7AKLB{__7~~lk7+Ha?1vwZB7@3$^SlQS)IJvli
z3bqO`FflSSGqEtUva+xMRo4RL8CV2ag%k}P*@OcV*_8@Kj2b5{<WP3ncu+Lx;s+Ju
zq@pHHE-`TlNhwt|bq!4|6H_yD3rj0!7gslT4^OY)kkGL3h{&kql+?8JjLfX!lG3vB
zipr|yme#iRj?S)0lc!9bHhsp-S&J4gS-Ncbij}K2ZQinV+x8thcO5!><mj>ECr+Na
zbot8FYu9hwy!G(W<0ns_J%91?)yGetzkL1n{m0K=Ab&A3Fhjfr_ZgbM1cClyVqsxs
zVF&q(k*OSrnFU!`6%E;h90S=C3x$=88aYIqCNA7~kW<+>=!0ld(M2vX6_bamA3<IN
z`;0h`HId~rxW^Fwy2Zf5%m|D;W<dsfhVPcMK8f%?cPM(b|CN6k^Y43KrSF^-J?yG`
zcS(h7LY$HDB=_%s_eah9A)LdIwB)qB@`|6=7J1mL4OPiZnK+9rC|-u)^b7Wt3%IU}
zFW8cCz3kJ<gy*NY>|Qfp*~eCYY)Nd$7P+joE3LVICOv+3K=PQ`*VUiSOkmaD{mj}S
zRLApJ75~Cj;YF^+PZqluB=dPcl4O^TsH*N_sNK4B%f{U&^MyA~^VzJR^5@y4inY0F
zTc^15D4$i>5wIsG?<?1x({e0)QD#$5s$FslSDAc&Ud2kENk*<kpL9AV6?AgC=@iZQ
zIlIr7!N_{W5}xy`Sgh}`^2#yrIJ~ko47zo1W&88YRK*+Y5s}RdN0_HdyzHAQ_A=<$
zEl%AfPQ6^yR6S0lezE+k?bl$usKr=P@$y@S@Pswd>{>_CTOThC-PBcGy|u?V`<Yv>
z<jpB}7@Q{+6jgrty4KqMEAM}X*p&Ya7jA7{r=PsxN?c^<scES{9nO^<{U^ehxO|p-
zQ=|fu$;?K>X~h#Ht5{#o+OYk?hEts#CuJP|x<B;2oFW{_86vRm-C^5;m@Ax_-zI(f
z8J28h@pJ8WIf<UhyXQ?|%sOqKuCiJ$Wnx2u<G~_#wv|77ztzt3nO%4N-)8OYf6K4i
zFSXTq?7gHby4pR=Eq@xr5`pkLzpma_l2<?ZY4NB1JGbP1ed!>0uYN`Ruh;Vb+O{Tb
pUcX@LmaV^?ZXa7_?siInUAo<?`Ja%r{m<w2e?QqDYq0-+6965O+QI+;

diff --git a/captcha/background4.jpg b/captcha/background4.jpg
deleted file mode 100644
index e1dd76c3f66a92a220c3f17ec0682f71c5bee5ba..0000000000000000000000000000000000000000
GIT binary patch
literal 0
HcmV?d00001

literal 3649
zcmbW3c{J2v+sA)1h8erDMGRxfC{)J26iSvBLe?3wM3j9`Jl3+WQ)HB6XKYhrNQ7*|
zWX+bXFtU_ALNc$O_dU;Z&il{1T=%*Ey03Ge@8|x0uXAqtIQ=WYbyd$$4*-Ecfc^0T
z=##)@0LH`wWnzRup-^UK7z-OOI~yx2n;<t2Cokfps0iYuurN~cED9+uD<Lc_t#VrS
zyu6~Kq9{u3f+||`tb!u??<F8+W@a{4HUV~a0koK~82bNQ^cDaP14IB#29P)ahJzU3
zAbL9>3IHI+W3_(;|5t&)3=l>pD2$nf^|+yy3jl){7{Cw)Mn(waxI66l9Du+Xxy9sl
zn0QPapyEEf=*aX}Fo{dVRzB0g4M_z@-za7l{u2U%Cr?SCq)(qwR8m$^Ra3vLdqq#*
z!0@WsEprP?D{C94JI*e5UES{a`3D3B1wROhj(PMrHZDFP1NY=<X4bQ8e11V;QE^FW
zS^4WXq*`)a{o95QZS5VMU6k&gp-;mjqhsTrCuZm7X$#*LmzGyHx3+)o?Ec!@KlsZ9
z0vP@i>tAI5jSGIv1%^NvAke>DAaKy}W`IK&#pIc|bxfcRK0M;+NEq*>^jE}IW(ft;
z4L(QTK^A^V#o1Gvf6@L)_P+y*`hSuA3+&%q695|n=-504IG_dWRCBwMsk6Oy&bf!G
zr0lK(|8|C&mkro5k#;AtyxC0Wgs;rhUgjpNuwKTgw`i4L=DL_?FW0J3wJv+F7wxk2
zMsx!WIdbKSZ*KIYde1xTC%lLAL{E<sICvL59~B)%I!k6K4PmC5ISwLSi+#q9Y-SU7
zIxm_~5U@OskYgt-CsK%h4nb}u8rY=1(Ugi+T1R*6$1^%uUpk<^-Lh<I+h4t`5@OO+
z6Seq9_Kj`wC4JKw-MnvFGV&?m5%5kUHKpp}m4zL-JJ!p;vM|-Wnee#ua37c;nvbH2
zT43+G(1|INs`V>%owIiT5p9Q#WFf6-`6ydycmVTAa10ovCMpNG>QwayfQ`NKZ&P`a
zDVx3SJ#FLhHTO{ln-*Cf%CC;a<>Wjpd)}Vurx~NRok}S;7ICmsc<~mYO~CD`_smYX
zc~;Tt1KED8X}&dB{-zDY9~G&1!;lfWCj;7+@J*|QyA*P#z$rOrxV!{nxxPd;B5v5;
z^CpjE((?$J;Gt1ds>iNsLT)(8tALC;0;{Okl{b_jU=X+sSJfL$crQPps9QJzfsn-#
zz-XAbr%t8D!?>zfhI#3y;yX=s?R(mW;jQK9;Gipb%S>Ad;|zVrzV&-CM3f{h#ZVEH
zHJ2PXG}(4gp^|u^K&g=^(GQ0c&s;j%aAulM0_)Jgpt-7v<q-CciVUmI%VSr+5~z=G
zy+~SYD0i1P1cyt<;Vd+DKn)vfCGKFHQsLligKv!As&(Cra2+|lS}w0H;0je={Aq@g
z=ys>`{(K8+f#%H@$c6_#4w8~x^qLxKn(Bs3uayB2CmNIXgX7MQekSU~J(og@3cH&b
zjehCif84jw{HDruW<^X0Gg%YprsW?b(E|vi6Jt>tew{u}A9lB9T;*q$51vlJZzyi*
zv$t4hu`8rE2Vyt$w0$UtKkn;W#a?@GR)Uy2Ght9wgjWg9xnnAu#E%x>d4zOsK_R4p
zy7!q!vvNganKOakRK<zEW&2yzK409TMm%6q7YP>62`Zj$n`2kjAKgK`zO2cN%JNEE
zbb3Sw%%`3FGPGg^X$*c>NBqACxS1J{D|Yj5pPp+-HgE*jT~7;1Z8yC!TiQ<E8lRcA
zQF@atkr<xMv09PG8@j5Ecs$<Y?UTy{h=;StP$k<ehcm3zT;hiit6g#n`D>~Ii_iVL
zY{IHyAXmIx-l0#o1P93E3ETUTy0@M$Ce@7%A&lEqL<DOw$&RoR^4+b``{>JWxU5{H
zX7w1@)-@x$H2t4|=%0NO+K#42WW#Clv-?9AD}9O$cgF|(fl~8l<cG4?0VFPY(s=Ji
zqxu)gld%(3&@Uv?<7<h}nnEc~W|G00h@SHXP{>>aYyZA<h{~U+YC7=KqsX7Hb^6{x
z(|QUiTX7n!D{;MPtFO#kF4OfRxfvb9t)6>gA)V`R>T8sY-)|w?ru_gd_-c%|(@-U2
z^|O+7=v_Cg&p_v3O}APfON9IF+n<*+eeG^fx4PXIQR&r;QpBb)S#6*VM3a32-=87o
zblH$5ZmEQH<rG^>qKp$mefct%$WrdQ!1QoEgdj~lZL=&JDpz1-r~eS~@@1HaZctW6
z)5pyy*qPTo)+64=JscNZ=5hGl@U5FWFMl&yg)dDu0MucU?ZfsHtihQfp3%XjnlB7p
z9wydm8(O{Kp<=;7eCTT;3$2z=?~*@{=2%5@+VRDNISms^{U@pW%yM0uE-)5BO9r)>
z_2-b(vWt;d0Pk&1&Plfky@FYatYa;4be0EWbE#&|I`*^motq#-UaSnC!#f&_cAvfv
z_GPL+fq!GPtSSsIU+y+)ik-AQ*R!$_E$a~Xdr8tfEcvM<Sf>N~+u~jRW|-HXYRBfS
z9oI-tr`y(I%Tj<O>5c+7xJ?_u$Y*?G#693)VD5)+YJ<XENV}6LfIFq+iBI}dd)OKy
zHjnM$I`f{FS!2c)9cVi+pB{epMRC`JvKj$U;kXFkP`WZf8mJ2IyuHOhrUNxqIdq_?
zW+ZWa&rqx}<38sP0@b4Bn)M;|t`U>fN6nV0=&k+xW9y;KDx&k8f`9NDax#_!wHVfT
zC03~6C?^SXy*o&VH-4U~z^CtQVeWWhElL}S&_5JA2<Yl17>5zwgjZmGXSzE7oc4TY
zKcD0%PhtP{mcSEi*0yauY4d`=L#%enL-(ev%Q&&yHCtPr>>YF(iWH{Z!h6Ll+S<)l
zx+`5XTpMKVzV|v(Q=5xpufH#b8^i{JMn~K5w6c#hl7GSV6}ev-N~B+wDHA|Ow?cdp
zfY~*Y$2H^4Q5=72rNJu_btt}E!mi@#soE*Ny23&ta)B1=1b~LL_An<;r5-*$`?D~W
zfOW%HSQ7J=Kqh3z&p(LgfhZ#tkBqU_fAD!B?v1X_RtmJ>opFUOALPn=<pvy?rofj<
zQSS$rZ5IGP?@*l$kKRVJk_3`{1~P!#t}_WFxL_4kG9IBH(iPo-_rIt<jLMj_zSZza
zE(7q#^!7Ps`bnMW={wPvh!WWE2*BsY7Ja{HGVG45&k%klb>|NaGA}2TidX)M=+S|I
zIkc;czUvK>=m5e^-t}NOLFjsuG(KNxr9B^G+lmRfdX1aIPQUX!fB;mqX3;}*U~vpf
z2U_{o>40Ft5x2&#{k)CLx3Z`wIA!9xU6(tKP^Ir;?l2G$T<|;S7Lg95b;T|k9MpDZ
zqb8kn2EeZ@{{098pOkvfS#RsT2xn|h`)bV6ypBYvT5}x^)<Hb%VaO;nJ8+i{e7Ia5
zK9F4%{^k3*BZCSpsBLihIjEaO+R}tVqD;VRKdH(y=QBj7RgoAj*d2#fhb~AG&y1zk
z?Cqc7t4%8FVTtB1f4xxI|LxfjIJukr!YJ@=(pSKF#pZTgfXt&tb*5yGQgKMi!59Xw
zHlibW+Ts3op3^(3H^o5E%$$}pr~EvviMsS@0@7aXare|nd$7|sdOt0msfAg-)Uk_|
zU#2lXLhXX`V!L|NJ7b4AFV4QWZ))JBPfYPGkb<&?9#u+D4I~Jhup~KD;XEQXJTW03
z&i&xNceBisMVh199V!orb{8rLL`9snRGEJ!*03=Z_|NFAgoGFhCkWc!pdq6;A@EL_
z!t#*Z91g<0%xzLayboiGw6;e6Q)d&3rl&S1IV2#DBiwX@*6n#beh#Efj&z}Ty_e-U
z#Z5AYjarec@H|rT*+T!ixweT&cJb2Kk?Y1<UHS5xwn#aW-}~?WY7>t~Y3L6nf>^y~
zX(6Le(c>2XC@Gj+$-R}bJvpuOQha5?OgJ5vw594yF*S*n;Ir-VmS(`!rnZmTsgJ}c
zxHS-}vhUQtWq0k+oUE+qi_*qA)H(1ff7QNG@6o?!=qaZ<5_+M0qICcI=q4*=`VZG7
z8{3i$!2%<wh9N7q`2!u`whL~U3-divm1t-fsthV*xx`*)NjcAq%1_x@<^^RH@8PbD
zteqTfyG6=f<!a0%Nb|IVfc2!qB^@MJ3s<nJlF|0jRgq*mU{9a}e}vp@@R_*c@5<l3
z%H4Le24rHb)?QiPQif63V13Mjzm!r!;f0sIvurT7%PR5`lAKOzR$ncU^#(%zNaX>8
z&)xg)H`oC6tNp`2FPyX9N-1zSPARQb0d<^GLD#9!!8%~g6o%yTWqi<-nz}P-oNTfO
zc0)GRV887KN4yQ4%zk^Ce34Ta`88zQj;Jk62X^_(oag{DoXaTvCnn5Di`*GqCYC7M
z@n*Wn9)x7`n9Op1Q0e*}IdXQ#gUR6M@8KvH+_fiP&h#<p{h$(Ey06q>CEW`=e<TsB
zh7y4O|8aU;k1c$)9Mb<JKnQkLGFFN?Tk8Qxm8v)YEx8`*o2COqr^)mmNqonbv~hA`
tRvIoG{z|6?k_pab%@YzyXpKw`A9?qZO@kIDBpYK3wAADZ@9{6-KLDdop@aYc

diff --git a/captcha/randomimage.php b/captcha/randomimage.php
deleted file mode 100644
index 323693f..0000000
--- a/captcha/randomimage.php
+++ /dev/null
@@ -1,52 +0,0 @@
-<?php
-session_start();
-
-// make a string with all the characters that we 
-// want to use as the verification code
-$alphanum  = "ABCDEFGHJKMNPQRSTUVWXYZ23456789";
-
-// generate the verication code 
-$rand = substr(str_shuffle($alphanum), 0, 5);
-
-// choose one of four background images
-$bgNum = rand(1, 4);
-
-// create an image object using the chosen background
-$image = imagecreatefromjpeg("background$bgNum.jpg");
-
-$textColor = imagecolorallocate ($image, 0, 0, 0); 
-
-// write the code on the background image
-imagestring ($image, 5, 5, 8,  $rand, $textColor); 
-	
-
-// create the hash for the verification code
-// and put it in the session
-$_SESSION['image_random_value'] = md5($rand);
-	
-// send several headers to make sure the image is not cached	
-// taken directly from the PHP Manual
-	
-// Date in the past 
-header("Expires: Mon, 26 Jul 1997 05:00:00 GMT"); 
-
-// always modified 
-header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT"); 
-
-// HTTP/1.1 
-header("Cache-Control: no-store, no-cache, must-revalidate"); 
-header("Cache-Control: post-check=0, pre-check=0", false); 
-
-// HTTP/1.0 
-header("Pragma: no-cache"); 	
-
-
-// send the content type header so the image is displayed properly
-header('Content-type: image/jpeg');
-
-// send the image to the browser
-imagejpeg($image);
-
-// destroy the image to free up the memory
-imagedestroy($image);
-?>
\ No newline at end of file
diff --git a/sendform.php b/sendform.php
index 806b72a..cb1dd01 100644
--- a/sendform.php
+++ b/sendform.php
@@ -15,6 +15,10 @@
 	// $referals is a list of web site domains seperated by commas.  Only requests originating from
 	// these domains will be processed.
 	$referals = "domain.com";
+	
+	// Google reCaptcha v2 secret. Obtain your key from https://www.google.com/recaptcha/admin/create
+	// Enter your secret key below and be sure to integrate reCaptcha into your site with your site key.
+	$reCaptchaSecret = "";
 
 	// $excludeFields is a list of field names seperated by commas.  Field names listed here will not
 	// be included in the resulting email of this script.
@@ -76,9 +80,30 @@
 
 	$theDomain = getdomain($_SERVER['HTTP_REFERER']);
 	checkreferal();
-	if(isset($_SESSION['image_random_value']) && strcasecmp(md5(strtoupper($_REQUEST['verification'])), $_SESSION['image_random_value']) != 0) {
-		die("Verification box did not match image");
-	}
+	
+	// Google reCaptcha v2
+	if(isset($reCaptchaSecret)){
+		if(isset($_POST['g-recaptcha-response'])) $captcha=$_POST['g-recaptcha-response'];
+		else errormsg("Verification failed. Please try again.");
+		
+		// post request to server
+        $url = 'https://www.google.com/recaptcha/api/siteverify?secret=' . urlencode($reCaptchaSecret) .  '&response=' . urlencode($captcha);
+        $ch = curl_init();
+
+		curl_setopt($ch, CURLOPT_AUTOREFERER, TRUE);
+		curl_setopt($ch, CURLOPT_HEADER, 0);
+		curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
+		curl_setopt($ch, CURLOPT_URL, $url);
+		curl_setopt($ch, CURLOPT_FOLLOWLOCATION, TRUE);       
+
+		$response = curl_exec($ch);
+		curl_close($ch);
+        
+        $responseKeys = json_decode($response,true);
+        // should return JSON with success as true
+        if(!$responseKeys["success"]) errormsg("Verification failed. Please try again.");
+    }
+    
 	checkrequired();
 	if(!validemail($defaultFrom) && !isset($_POST['email'])) bademail($defaultFrom);
 	fillrecipients();