| eip | title | author | created | status | type | category |
|---|---|---|---|---|---|---|
107 |
通过 `html` 弹出窗口安全的 `eth_sendTransaction` 授权 |
Ronan Sandford (@wighawag) |
2016-06-05 |
停滞 |
标准追踪 |
接口 |
该 EIP 草案描述了一种授权方法的详细信息，如果由启用了 rpc 的以太坊节点提供，则该方法将允许常规网站发送交易（通过 eth_sendTransaction ）而无需启用 CORS。相反，将要求用户通过 html 弹出窗口确认交易。
dapp 想要执行的每个只读 rpc 调用都从节点域重定向到一个不可见的 iframe，并且对于 dapp 希望执行的每个交易，都会向用户显示一个 html 弹出窗口，以允许他/她取消或确认交易.这允许 dapp 连接到节点的 rpc api 而无需被授予任何类型的权限。这允许用户在他们的帐户解锁时安全地与在日常网络浏览器中运行的 dapp 进行交互。如果账户没有解锁，并且节点允许通过 rpc 的“个人” api，html 页面也允许用户输入他们的密码来解锁交易范围内的账户。
目前，如果用户使用她/他的日常浏览器导航到在网站上运行的 dapp，出于安全原因，dapp 默认无法访问 rpc api。 用户必须为网站域启用 CORS 才能使 dapp 工作。 不幸的是，如果用户这样做，dapp 将能够从任何未锁定的帐户发送交易，而无需任何用户同意。 换句话说，不仅用户需要更改节点的默认设置，而且用户还被迫信任 dapp 才能使用它。 这当然是不可接受的，并迫使现有的 dapp 依赖于使用以下变通方法：
- 如果交易是普通的以太币转账，则要求用户将其输入到专用的可信钱包中，例如
Mist - 对于更复杂的情况，要求用户通过节点命令行界面手动输入交易。
该提案旨在提供一种安全且用户友好的替代方案。
以下是该 html 弹出窗口的提供实现的一些屏幕截图：
当帐户已经解锁时，对于 dapp 尝试进行的每笔交易，用户都会看到以下弹出窗口：
当账户被锁定，并且节点不提供通过其 rpc 接口进行账户解锁的访问权限时，将出现以下弹出窗口。 这并不理想，因为这需要用户知道如何解锁帐户：
更好的选择是询问用户密码，但这只有在节点允许通过 rpc 访问“个人” api 时才有可能。 在这种情况下，将向用户显示以下对话框，以便他/她可以通过提供解锁帐户所需的密码来接受交易：
为了使该机制起作用，节点需要通过 http 在 url <node url>/authorization.html 处提供 html 文件
该文件将被 dapp 以两种不同的模式（不可见的 iframe 和弹出窗口）使用。
不可见的 iframe 将嵌入到 dapp 中，以允许 dapp 发送其只读 rpc 调用，而无需为 dapp 的网站域启用 CORS。这是通过向 iframe（通过 javascript window.postMessage）发送消息来完成的，iframe 依次执行 rpc 调用。这是有效的，因为 iframe 和节点共享相同的域/端口。
在 iframe 模式下，html 文件的 javascript 代码将确保无法进行需要解锁密钥的调用。这是为了防止 dapps 嵌入不可见的 iframe 并诱使用户点击确认按钮。如果 dapp 需要一个 eth_sendTransaction 调用，dapp 将改为使用相同的 url 打开一个新窗口。
在这种弹出窗口模式下，html 文件的 javascript 代码将允许调用 eth_sendTransaction（但不是 eth_sign ，因为无法以安全的方式向用户显示交易的有意义的内容以进行签名）被调用。但不是直接向节点发送呼叫，而是会出现一个确认对话框，显示发送方和接收方地址，以及转移的金额以及潜在的 gas 成本。在用户批准后，将发送请求并将结果返回给 dapp。如果用户取消请求，将返回错误。
html 页面还会检查“个人” api 的可用性，如果是，则会在必要时要求用户解锁帐户。 解锁是临时的（3 秒），因此如果在此短时间结束之前尝试交易，将再次询问密码。
在 iframe 模式和 window 模式下，与 dapp 的通信都是使用 window.postMessage 来实现的。 iframe/window 发送的第一条消息是包含字符串 ready 的消息，让 dapp 知道它现在接受消息。 然后 dapp 可以通过使用以下对象发送消息来开始执行 rpc 调用:
{
id:<a an id>, //因此响应可以匹配，因为无法保证响应的顺序
payload:<json rpc object> //这是通常发送到节点的确切对象
对于 eth_sendTransaction，需要在 rpc 参数中设置 gas、gasPrice 和 from 字段，以便窗口可以显示正确的值。 如果不是所有这些都传入，则窗口将返回错误。
收到此类消息后，iframe 将执行对节点的实际 rpc 调用，但前提是此类调用是只读调用（不需要解锁密钥）。 如果不是，它将返回一个错误。 另一个窗口只接受 eth_sendTransaction 调用，但会显示一个对话框，以便用户可以接受或取消请求。
在所有情况下，iframe/window 将使用以下对象将消息发送回 dapp：
{
id:<id matching the request>,
result:<rpc result as is>,
error:<error object>
}
由于 postMessage 限制，错误对象不能是 javascript 错误对象。 相反，它是
{
message:<a string describing the error>,
type:<a string defining the type of error> //`type="cancel"` 表示用户取消交易
}
该提案的设计因其简单性和安全性而被选中。以前的想法是使用类似 oauth 的协议，以便用户接受或拒绝交易请求。这将需要在节点中进行更深入的代码更改，一些 geth 贡献者认为这种更改不适合 geth 代码库，因为它需要 dapp 感知代码。当前的设计有一个非常简单的实现（自包含的 html 文件，可以跨节点的实现共享），其安全性由浏览器的跨域策略保证。
使用 iframe/window 需要同时具有安全性和用户友好性。不可见的 iframe 允许 dapp 在不需要用户输入的情况下执行只读调用，并且窗口确保在调用之前得到用户的批准。虽然我们可以在没有窗口模式的情况下通过使用原生浏览器的 window.confirm 对话框进行 iframe 确认来实现它，但这会阻止使用当前设计允许的更优雅的确认弹出窗口。也恰好是 window.confirm 在某些浏览器中不安全，因为它把焦点放在接受选项上并且可以自动触发 (https://bugs.chromium.org/p/chromium/issues/detail?id=260653).
为了实现这种设计，需要在 url <node url>/authorization.html 提供以下 html 文件或等效的文件
那就是全部了。
<!DOCTYPE html>
<html>
<head>
<title>Ethereum Authorization</title>
</head>
<script>
//https://github.com/alexvandesande/blockies
!function(){function r(r){for(var t=0;t<l.length;t++)l[t]=0;for(var t=0;t<r.length;t++)l[t%4]=(l[t%4]<<5)-l[t%4]+r.charCodeAt(t)}function t(){var r=l[0]^l[0]<<11;return l[0]=l[1],l[1]=l[2],l[2]=l[3],l[3]=l[3]^l[3]>>19^r^r>>8,(l[3]>>>0)/(1<<31>>>0)}function e(){var r=Math.floor(360*t()),e=60*t()+40+"%",o=25*(t()+t()+t()+t())+"%",n="hsl("+r+","+e+","+o+")";return n}function o(r){for(var e=r,o=r,n=Math.ceil(e/2),a=e-n,l=[],c=0;o>c;c++){for(var f=[],h=0;n>h;h++)f[h]=Math.floor(2.3*t());var i=f.slice(0,a);i.reverse(),f=f.concat(i);for(var v=0;v<f.length;v++)l.push(f[v])}return l}function n(r,t,e,o,n){var a=document.createElement("canvas"),l=Math.sqrt(r.length);a.width=a.height=l*e;var c=a.getContext("2d");c.fillStyle=o,c.fillRect(0,0,a.width,a.height),c.fillStyle=t;for(var f=0;f<r.length;f++){var h=Math.floor(f/l),i=f%l;c.fillStyle=1==r[f]?t:n,r[f]&&c.fillRect(i*e,h*e,e,e)}return a}function a(t){t=t||{};var a=t.size||8,l=t.scale||4,c=t.seed||Math.floor(Math.random()*Math.pow(10,16)).toString(16);r(c);var f=t.color||e(),h=t.bgcolor||e(),i=t.spotcolor||e(),v=o(a),u=n(v,f,l,h,i);return u}var l=new Array(4);window.blockies={create:a}}();
/* bignumber.js v2.3.0 https://github.com/MikeMcl/bignumber.js/LICENCE */
!function(e){"use strict";function n(e){function E(e,n){var t,r,i,o,u,s,f=this;if(!(f instanceof E))return j&&L(26,"constructor call without new",e),new E(e,n);if(null!=n&&H(n,2,64,M,"base")){if(n=0|n,s=e+"",10==n)return f=new E(e instanceof E?e:s),U(f,P+f.e+1,k);if((o="number"==typeof e)&&0*e!=0||!new RegExp("^-?"+(t="["+N.slice(0,n)+"]+")+"(?:\\."+t+")?$",37>n?"i":"").test(s))return h(f,s,o,n);o?(f.s=0>1/e?(s=s.slice(1),-1):1,j&&s.replace(/^0\.0*|\./,"").length>15&&L(M,v,e),o=!1):f.s=45===s.charCodeAt(0)?(s=s.slice(1),-1):1,s=D(s,10,n,f.s)}else{if(e instanceof E)return f.s=e.s,f.e=e.e,f.c=(e=e.c)?e.slice():e,void(M=0);if((o="number"==typeof e)&&0*e==0){if(f.s=0>1/e?(e=-e,-1):1,e===~~e){for(r=0,i=e;i>=10;i/=10,r++);return f.e=r,f.c=[e],void(M=0)}s=e+""}else{if(!g.test(s=e+""))return h(f,s,o);f.s=45===s.charCodeAt(0)?(s=s.slice(1),-1):1}}for((r=s.indexOf("."))>-1&&(s=s.replace(".","")),(i=s.search(/e/i))>0?(0>r&&(r=i),r+=+s.slice(i+1),s=s.substring(0,i)):0>r&&(r=s.length),i=0;48===s.charCodeAt(i);i++);for(u=s.length;48===s.charCodeAt(--u););if(s=s.slice(i,u+1))if(u=s.length,o&&j&&u>15&&(e>y||e!==d(e))&&L(M,v,f.s*e),r=r-i-1,r>z)f.c=f.e=null;else if(G>r)f.c=[f.e=0];else{if(f.e=r,f.c=[],i=(r+1)%O,0>r&&(i+=O),u>i){for(i&&f.c.push(+s.slice(0,i)),u-=O;u>i;)f.c.push(+s.slice(i,i+=O));s=s.slice(i),i=O-s.length}else i-=u;for(;i--;s+="0");f.c.push(+s)}else f.c=[f.e=0];M=0}function D(e,n,t,i){var o,u,f,c,a,h,g,p=e.indexOf("."),d=P,m=k;for(37>t&&(e=e.toLowerCase()),p>=0&&(f=J,J=0,e=e.replace(".",""),g=new E(t),a=g.pow(e.length-p),J=f,g.c=s(l(r(a.c),a.e),10,n),g.e=g.c.length),h=s(e,t,n),u=f=h.length;0==h[--f];h.pop());if(!h[0])return"0";if(0>p?--u:(a.c=h,a.e=u,a.s=i,a=C(a,g,d,m,n),h=a.c,c=a.r,u=a.e),o=u+d+1,p=h[o],f=n/2,c=c||0>o||null!=h[o+1],c=4>m?(null!=p||c)&&(0==m||m==(a.s<0?3:2)):p>f||p==f&&(4==m||c||6==m&&1&h[o-1]||m==(a.s<0?8:7)),1>o||!h[0])e=c?l("1",-d):"0";else{if(h.length=o,c)for(--n;++h[--o]>n;)h[o]=0,o||(++u,h.unshift(1));for(f=h.length;!h[--f];);for(p=0,e="";f>=p;e+=N.charAt(h[p++]));e=l(e,u)}return e}function F(e,n,t,i){var o,u,s,c,a;if(t=null!=t&&H(t,0,8,i,w)?0|t:k,!e.c)return e.toString();if(o=e.c[0],s=e.e,null==n)a=r(e.c),a=19==i||24==i&&B>=s?f(a,s):l(a,s);else if(e=U(new E(e),n,t),u=e.e,a=r(e.c),c=a.length,19==i||24==i&&(u>=n||B>=u)){for(;n>c;a+="0",c++);a=f(a,u)}else if(n-=s,a=l(a,u),u+1>c){if(--n>0)for(a+=".";n--;a+="0");}else if(n+=u-c,n>0)for(u+1==c&&(a+=".");n--;a+="0");return e.s<0&&o?"-"+a:a}function _(e,n){var t,r,i=0;for(u(e[0])&&(e=e[0]),t=new E(e[0]);++i<e.length;){if(r=new E(e[i]),!r.s){t=r;break}n.call(t,r)&&(t=r)}return t}function x(e,n,t,r,i){return(n>e||e>t||e!=c(e))&&L(r,(i||"decimal places")+(n>e||e>t?" out of range":" not an integer"),e),!0}function I(e,n,t){for(var r=1,i=n.length;!n[--i];n.pop());for(i=n[0];i>=10;i/=10,r++);return(t=r+t*O-1)>z?e.c=e.e=null:G>t?e.c=[e.e=0]:(e.e=t,e.c=n),e}function L(e,n,t){var r=new Error(["new BigNumber","cmp","config","div","divToInt","eq","gt","gte","lt","lte","minus","mod","plus","precision","random","round","shift","times","toDigits","toExponential","toFixed","toFormat","toFraction","pow","toPrecision","toString","BigNumber"][e]+"() "+n+": "+t);throw r.name="BigNumber Error",M=0,r}function U(e,n,t,r){var i,o,u,s,f,l,c,a=e.c,h=S;if(a){e:{for(i=1,s=a[0];s>=10;s/=10,i++);if(o=n-i,0>o)o+=O,u=n,f=a[l=0],c=f/h[i-u-1]%10|0;else if(l=p((o+1)/O),l>=a.length){if(!r)break e;for(;a.length<=l;a.push(0));f=c=0,i=1,o%=O,u=o-O+1}else{for(f=s=a[l],i=1;s>=10;s/=10,i++);o%=O,u=o-O+i,c=0>u?0:f/h[i-u-1]%10|0}if(r=r||0>n||null!=a[l+1]||(0>u?f:f%h[i-u-1]),r=4>t?(c||r)&&(0==t||t==(e.s<0?3:2)):c>5||5==c&&(4==t||r||6==t&&(o>0?u>0?f/h[i-u]:0:a[l-1])%10&1||t==(e.s<0?8:7)),1>n||!a[0])return a.length=0,r?(n-=e.e+1,a[0]=h[(O-n%O)%O],e.e=-n||0):a[0]=e.e=0,e;if(0==o?(a.length=l,s=1,l--):(a.length=l+1,s=h[O-o],a[l]=u>0?d(f/h[i-u]%h[u])*s:0),r)for(;;){if(0==l){for(o=1,u=a[0];u>=10;u/=10,o++);for(u=a[0]+=s,s=1;u>=10;u/=10,s++);o!=s&&(e.e++,a[0]==b&&(a[0]=1));break}if(a[l]+=s,a[l]!=b)break;a[l--]=0,s=1}for(o=a.length;0===a[--o];a.pop());}e.e>z?e.c=e.e=null:e.e<G&&(e.c=[e.e=0])}return e}var C,M=0,T=E.prototype,q=new E(1),P=20,k=4,B=-7,$=21,G=-1e7,z=1e7,j=!0,H=x,V=!1,W=1,J=100,X={decimalSeparator:".",groupSeparator:",",groupSize:3,secondaryGroupSize:0,fractionGroupSeparator:" ",fractionGroupSize:0};return E.another=n,E.ROUND_UP=0,E.ROUND_DOWN=1,E.ROUND_CEIL=2,E.ROUND_FLOOR=3,E.ROUND_HALF_UP=4,E.ROUND_HALF_DOWN=5,E.ROUND_HALF_EVEN=6,E.ROUND_HALF_CEIL=7,E.ROUND_HALF_FLOOR=8,E.EUCLID=9,E.config=function(){var e,n,t=0,r={},i=arguments,s=i[0],f=s&&"object"==typeof s?function(){return s.hasOwnProperty(n)?null!=(e=s[n]):void 0}:function(){return i.length>t?null!=(e=i[t++]):void 0};return f(n="DECIMAL_PLACES")&&H(e,0,A,2,n)&&(P=0|e),r[n]=P,f(n="ROUNDING_MODE")&&H(e,0,8,2,n)&&(k=0|e),r[n]=k,f(n="EXPONENTIAL_AT")&&(u(e)?H(e[0],-A,0,2,n)&&H(e[1],0,A,2,n)&&(B=0|e[0],$=0|e[1]):H(e,-A,A,2,n)&&(B=-($=0|(0>e?-e:e)))),r[n]=[B,$],f(n="RANGE")&&(u(e)?H(e[0],-A,-1,2,n)&&H(e[1],1,A,2,n)&&(G=0|e[0],z=0|e[1]):H(e,-A,A,2,n)&&(0|e?G=-(z=0|(0>e?-e:e)):j&&L(2,n+" cannot be zero",e))),r[n]=[G,z],f(n="ERRORS")&&(e===!!e||1===e||0===e?(M=0,H=(j=!!e)?x:o):j&&L(2,n+m,e)),r[n]=j,f(n="CRYPTO")&&(e===!!e||1===e||0===e?(V=!(!e||!a),e&&!V&&j&&L(2,"crypto unavailable",a)):j&&L(2,n+m,e)),r[n]=V,f(n="MODULO_MODE")&&H(e,0,9,2,n)&&(W=0|e),r[n]=W,f(n="POW_PRECISION")&&H(e,0,A,2,n)&&(J=0|e),r[n]=J,f(n="FORMAT")&&("object"==typeof e?X=e:j&&L(2,n+" not an object",e)),r[n]=X,r},E.max=function(){return _(arguments,T.lt)},E.min=function(){return _(arguments,T.gt)},E.random=function(){var e=9007199254740992,n=Math.random()*e&2097151?function(){return d(Math.random()*e)}:function(){return 8388608*(1073741824*Math.random()|0)+(8388608*Math.random()|0)};return function(e){var t,r,i,o,u,s=0,f=[],l=new E(q);if(e=null!=e&&H(e,0,A,14)?0|e:P,o=p(e/O),V)if(a&&a.getRandomValues){for(t=a.getRandomValues(new Uint32Array(o*=2));o>s;)u=131072*t[s]+(t[s+1]>>>11),u>=9e15?(r=a.getRandomValues(new Uint32Array(2)),t[s]=r[0],t[s+1]=r[1]):(f.push(u%1e14),s+=2);s=o/2}else if(a&&a.randomBytes){for(t=a.randomBytes(o*=7);o>s;)u=281474976710656*(31&t[s])+1099511627776*t[s+1]+4294967296*t[s+2]+16777216*t[s+3]+(t[s+4]<<16)+(t[s+5]<<8)+t[s+6],u>=9e15?a.randomBytes(7).copy(t,s):(f.push(u%1e14),s+=7);s=o/7}else j&&L(14,"crypto unavailable",a);if(!s)for(;o>s;)u=n(),9e15>u&&(f[s++]=u%1e14);for(o=f[--s],e%=O,o&&e&&(u=S[O-e],f[s]=d(o/u)*u);0===f[s];f.pop(),s--);if(0>s)f=[i=0];else{for(i=-1;0===f[0];f.shift(),i-=O);for(s=1,u=f[0];u>=10;u/=10,s++);O>s&&(i-=O-s)}return l.e=i,l.c=f,l}}(),C=function(){function e(e,n,t){var r,i,o,u,s=0,f=e.length,l=n%R,c=n/R|0;for(e=e.slice();f--;)o=e[f]%R,u=e[f]/R|0,r=c*o+u*l,i=l*o+r%R*R+s,s=(i/t|0)+(r/R|0)+c*u,e[f]=i%t;return s&&e.unshift(s),e}function n(e,n,t,r){var i,o;if(t!=r)o=t>r?1:-1;else for(i=o=0;t>i;i++)if(e[i]!=n[i]){o=e[i]>n[i]?1:-1;break}return o}function r(e,n,t,r){for(var i=0;t--;)e[t]-=i,i=e[t]<n[t]?1:0,e[t]=i*r+e[t]-n[t];for(;!e[0]&&e.length>1;e.shift());}return function(i,o,u,s,f){var l,c,a,h,g,p,m,w,v,N,y,S,R,A,D,F,_,x=i.s==o.s?1:-1,I=i.c,L=o.c;if(!(I&&I[0]&&L&&L[0]))return new E(i.s&&o.s&&(I?!L||I[0]!=L[0]:L)?I&&0==I[0]||!L?0*x:x/0:NaN);for(w=new E(x),v=w.c=[],c=i.e-o.e,x=u+c+1,f||(f=b,c=t(i.e/O)-t(o.e/O),x=x/O|0),a=0;L[a]==(I[a]||0);a++);if(L[a]>(I[a]||0)&&c--,0>x)v.push(1),h=!0;else{for(A=I.length,F=L.length,a=0,x+=2,g=d(f/(L[0]+1)),g>1&&(L=e(L,g,f),I=e(I,g,f),F=L.length,A=I.length),R=F,N=I.slice(0,F),y=N.length;F>y;N[y++]=0);_=L.slice(),_.unshift(0),D=L[0],L[1]>=f/2&&D++;do{if(g=0,l=n(L,N,F,y),0>l){if(S=N[0],F!=y&&(S=S*f+(N[1]||0)),g=d(S/D),g>1)for(g>=f&&(g=f-1),p=e(L,g,f),m=p.length,y=N.length;1==n(p,N,m,y);)g--,r(p,m>F?_:L,m,f),m=p.length,l=1;else 0==g&&(l=g=1),p=L.slice(),m=p.length;if(y>m&&p.unshift(0),r(N,p,y,f),y=N.length,-1==l)for(;n(L,N,F,y)<1;)g++,r(N,y>F?_:L,y,f),y=N.length}else 0===l&&(g++,N=[0]);v[a++]=g,N[0]?N[y++]=I[R]||0:(N=[I[R]],y=1)}while((R++<A||null!=N[0])&&x--);h=null!=N[0],v[0]||v.shift()}if(f==b){for(a=1,x=v[0];x>=10;x/=10,a++);U(w,u+(w.e=a+c*O-1)+1,s,h)}else w.e=c,w.r=+h;return w}}(),h=function(){var e=/^(-?)0([xbo])(?=\w[\w.]*$)/i,n=/^([^.]+)\.$/,t=/^\.([^.]+)$/,r=/^-?(Infinity|NaN)$/,i=/^\s*\+(?=[\w.])|^\s+|\s+$/g;return function(o,u,s,f){var l,c=s?u:u.replace(i,"");if(r.test(c))o.s=isNaN(c)?null:0>c?-1:1;else{if(!s&&(c=c.replace(e,function(e,n,t){return l="x"==(t=t.toLowerCase())?16:"b"==t?2:8,f&&f!=l?e:n}),f&&(l=f,c=c.replace(n,"$1").replace(t,"0.$1")),u!=c))return new E(c,l);j&&L(M,"not a"+(f?" base "+f:"")+" number",u),o.s=null}o.c=o.e=null,M=0}}(),T.absoluteValue=T.abs=function(){var e=new E(this);return e.s<0&&(e.s=1),e},T.ceil=function(){return U(new E(this),this.e+1,2)},T.comparedTo=T.cmp=function(e,n){return M=1,i(this,new E(e,n))},T.decimalPlaces=T.dp=function(){var e,n,r=this.c;if(!r)return null;if(e=((n=r.length-1)-t(this.e/O))*O,n=r[n])for(;n%10==0;n/=10,e--);return 0>e&&(e=0),e},T.dividedBy=T.div=function(e,n){return M=3,C(this,new E(e,n),P,k)},T.dividedToIntegerBy=T.divToInt=function(e,n){return M=4,C(this,new E(e,n),0,1)},T.equals=T.eq=function(e,n){return M=5,0===i(this,new E(e,n))},T.floor=function(){return U(new E(this),this.e+1,3)},T.greaterThan=T.gt=function(e,n){return M=6,i(this,new E(e,n))>0},T.greaterThanOrEqualTo=T.gte=function(e,n){return M=7,1===(n=i(this,new E(e,n)))||0===n},T.isFinite=function(){return!!this.c},T.isInteger=T.isInt=function(){return!!this.c&&t(this.e/O)>this.c.length-2},T.isNaN=function(){return!this.s},T.isNegative=T.isNeg=function(){return this.s<0},T.isZero=function(){return!!this.c&&0==this.c[0]},T.lessThan=T.lt=function(e,n){return M=8,i(this,new E(e,n))<0},T.lessThanOrEqualTo=T.lte=function(e,n){return M=9,-1===(n=i(this,new E(e,n)))||0===n},T.minus=T.sub=function(e,n){var r,i,o,u,s=this,f=s.s;if(M=10,e=new E(e,n),n=e.s,!f||!n)return new E(NaN);if(f!=n)return e.s=-n,s.plus(e);var l=s.e/O,c=e.e/O,a=s.c,h=e.c;if(!l||!c){if(!a||!h)return a?(e.s=-n,e):new E(h?s:NaN);if(!a[0]||!h[0])return h[0]?(e.s=-n,e):new E(a[0]?s:3==k?-0:0)}if(l=t(l),c=t(c),a=a.slice(),f=l-c){for((u=0>f)?(f=-f,o=a):(c=l,o=h),o.reverse(),n=f;n--;o.push(0));o.reverse()}else for(i=(u=(f=a.length)<(n=h.length))?f:n,f=n=0;i>n;n++)if(a[n]!=h[n]){u=a[n]<h[n];break}if(u&&(o=a,a=h,h=o,e.s=-e.s),n=(i=h.length)-(r=a.length),n>0)for(;n--;a[r++]=0);for(n=b-1;i>f;){if(a[--i]<h[i]){for(r=i;r&&!a[--r];a[r]=n);--a[r],a[i]+=b}a[i]-=h[i]}for(;0==a[0];a.shift(),--c);return a[0]?I(e,a,c):(e.s=3==k?-1:1,e.c=[e.e=0],e)},T.modulo=T.mod=function(e,n){var t,r,i=this;return M=11,e=new E(e,n),!i.c||!e.s||e.c&&!e.c[0]?new E(NaN):!e.c||i.c&&!i.c[0]?new E(i):(9==W?(r=e.s,e.s=1,t=C(i,e,0,3),e.s=r,t.s*=r):t=C(i,e,0,W),i.minus(t.times(e)))},T.negated=T.neg=function(){var e=new E(this);return e.s=-e.s||null,e},T.plus=T.add=function(e,n){var r,i=this,o=i.s;if(M=12,e=new E(e,n),n=e.s,!o||!n)return new E(NaN);if(o!=n)return e.s=-n,i.minus(e);var u=i.e/O,s=e.e/O,f=i.c,l=e.c;if(!u||!s){if(!f||!l)return new E(o/0);if(!f[0]||!l[0])return l[0]?e:new E(f[0]?i:0*o)}if(u=t(u),s=t(s),f=f.slice(),o=u-s){for(o>0?(s=u,r=l):(o=-o,r=f),r.reverse();o--;r.push(0));r.reverse()}for(o=f.length,n=l.length,0>o-n&&(r=l,l=f,f=r,n=o),o=0;n;)o=(f[--n]=f[n]+l[n]+o)/b|0,f[n]%=b;return o&&(f.unshift(o),++s),I(e,f,s)},T.precision=T.sd=function(e){var n,t,r=this,i=r.c;if(null!=e&&e!==!!e&&1!==e&&0!==e&&(j&&L(13,"argument"+m,e),e!=!!e&&(e=null)),!i)return null;if(t=i.length-1,n=t*O+1,t=i[t]){for(;t%10==0;t/=10,n--);for(t=i[0];t>=10;t/=10,n++);}return e&&r.e+1>n&&(n=r.e+1),n},T.round=function(e,n){var t=new E(this);return(null==e||H(e,0,A,15))&&U(t,~~e+this.e+1,null!=n&&H(n,0,8,15,w)?0|n:k),t},T.shift=function(e){var n=this;return H(e,-y,y,16,"argument")?n.times("1e"+c(e)):new E(n.c&&n.c[0]&&(-y>e||e>y)?n.s*(0>e?0:1/0):n)},T.squareRoot=T.sqrt=function(){var e,n,i,o,u,s=this,f=s.c,l=s.s,c=s.e,a=P+4,h=new E("0.5");if(1!==l||!f||!f[0])return new E(!l||0>l&&(!f||f[0])?NaN:f?s:1/0);if(l=Math.sqrt(+s),0==l||l==1/0?(n=r(f),(n.length+c)%2==0&&(n+="0"),l=Math.sqrt(n),c=t((c+1)/2)-(0>c||c%2),l==1/0?n="1e"+c:(n=l.toExponential(),n=n.slice(0,n.indexOf("e")+1)+c),i=new E(n)):i=new E(l+""),i.c[0])for(c=i.e,l=c+a,3>l&&(l=0);;)if(u=i,i=h.times(u.plus(C(s,u,a,1))),r(u.c).slice(0,l)===(n=r(i.c)).slice(0,l)){if(i.e<c&&--l,n=n.slice(l-3,l+1),"9999"!=n&&(o||"4999"!=n)){(!+n||!+n.slice(1)&&"5"==n.charAt(0))&&(U(i,i.e+P+2,1),e=!i.times(i).eq(s));break}if(!o&&(U(u,u.e+P+2,0),u.times(u).eq(s))){i=u;break}a+=4,l+=4,o=1}return U(i,i.e+P+1,k,e)},T.times=T.mul=function(e,n){var r,i,o,u,s,f,l,c,a,h,g,p,d,m,w,v=this,N=v.c,y=(M=17,e=new E(e,n)).c;if(!(N&&y&&N[0]&&y[0]))return!v.s||!e.s||N&&!N[0]&&!y||y&&!y[0]&&!N?e.c=e.e=e.s=null:(e.s*=v.s,N&&y?(e.c=[0],e.e=0):e.c=e.e=null),e;for(i=t(v.e/O)+t(e.e/O),e.s*=v.s,l=N.length,h=y.length,h>l&&(d=N,N=y,y=d,o=l,l=h,h=o),o=l+h,d=[];o--;d.push(0));for(m=b,w=R,o=h;--o>=0;){for(r=0,g=y[o]%w,p=y[o]/w|0,s=l,u=o+s;u>o;)c=N[--s]%w,a=N[s]/w|0,f=p*c+a*g,c=g*c+f%w*w+d[u]+r,r=(c/m|0)+(f/w|0)+p*a,d[u--]=c%m;d[u]=r}return r?++i:d.shift(),I(e,d,i)},T.toDigits=function(e,n){var t=new E(this);return e=null!=e&&H(e,1,A,18,"precision")?0|e:null,n=null!=n&&H(n,0,8,18,w)?0|n:k,e?U(t,e,n):t},T.toExponential=function(e,n){return F(this,null!=e&&H(e,0,A,19)?~~e+1:null,n,19)},T.toFixed=function(e,n){return F(this,null!=e&&H(e,0,A,20)?~~e+this.e+1:null,n,20)},T.toFormat=function(e,n){var t=F(this,null!=e&&H(e,0,A,21)?~~e+this.e+1:null,n,21);if(this.c){var r,i=t.split("."),o=+X.groupSize,u=+X.secondaryGroupSize,s=X.groupSeparator,f=i[0],l=i[1],c=this.s<0,a=c?f.slice(1):f,h=a.length;if(u&&(r=o,o=u,u=r,h-=r),o>0&&h>0){for(r=h%o||o,f=a.substr(0,r);h>r;r+=o)f+=s+a.substr(r,o);u>0&&(f+=s+a.slice(r)),c&&(f="-"+f)}t=l?f+X.decimalSeparator+((u=+X.fractionGroupSize)?l.replace(new RegExp("\\d{"+u+"}\\B","g"),"$&"+X.fractionGroupSeparator):l):f}return t},T.toFraction=function(e){var n,t,i,o,u,s,f,l,c,a=j,h=this,g=h.c,p=new E(q),d=t=new E(q),m=f=new E(q);if(null!=e&&(j=!1,s=new E(e),j=a,(!(a=s.isInt())||s.lt(q))&&(j&&L(22,"max denominator "+(a?"out of range":"not an integer"),e),e=!a&&s.c&&U(s,s.e+1,1).gte(q)?s:null)),!g)return h.toString();for(c=r(g),o=p.e=c.length-h.e-1,p.c[0]=S[(u=o%O)<0?O+u:u],e=!e||s.cmp(p)>0?o>0?p:d:s,u=z,z=1/0,s=new E(c),f.c[0]=0;l=C(s,p,0,1),i=t.plus(l.times(m)),1!=i.cmp(e);)t=m,m=i,d=f.plus(l.times(i=d)),f=i,p=s.minus(l.times(i=p)),s=i;return i=C(e.minus(t),m,0,1),f=f.plus(i.times(d)),t=t.plus(i.times(m)),f.s=d.s=h.s,o*=2,n=C(d,m,o,k).minus(h).abs().cmp(C(f,t,o,k).minus(h).abs())<1?[d.toString(),m.toString()]:[f.toString(),t.toString()],z=u,n},T.toNumber=function(){return+this},T.toPower=T.pow=function(e,n){var t,r,i,o=d(0>e?-e:+e),u=this;if(null!=n&&(M=23,n=new E(n)),!H(e,-y,y,23,"exponent")&&(!isFinite(e)||o>y&&(e/=0)||parseFloat(e)!=e&&!(e=NaN))||0==e)return t=Math.pow(+u,e),new E(n?t%n:t);for(n?e>1&&u.gt(q)&&u.isInt()&&n.gt(q)&&n.isInt()?u=u.mod(n):(i=n,n=null):J&&(t=p(J/O+2)),r=new E(q);;){if(o%2){if(r=r.times(u),!r.c)break;t?r.c.length>t&&(r.c.length=t):n&&(r=r.mod(n))}if(o=d(o/2),!o)break;u=u.times(u),t?u.c&&u.c.length>t&&(u.c.length=t):n&&(u=u.mod(n))}return n?r:(0>e&&(r=q.div(r)),i?r.mod(i):t?U(r,J,k):r)},T.toPrecision=function(e,n){return F(this,null!=e&&H(e,1,A,24,"precision")?0|e:null,n,24)},T.toString=function(e){var n,t=this,i=t.s,o=t.e;return null===o?i?(n="Infinity",0>i&&(n="-"+n)):n="NaN":(n=r(t.c),n=null!=e&&H(e,2,64,25,"base")?D(l(n,o),0|e,10,i):B>=o||o>=$?f(n,o):l(n,o),0>i&&t.c[0]&&(n="-"+n)),n},T.truncated=T.trunc=function(){return U(new E(this),this.e+1,1)},T.valueOf=T.toJSON=function(){var e,n=this,t=n.e;return null===t?n.toString():(e=r(n.c),e=B>=t||t>=$?f(e,t):l(e,t),n.s<0?"-"+e:e)},null!=e&&E.config(e),E}function t(e){var n=0|e;return e>0||e===n?n:n-1}function r(e){for(var n,t,r=1,i=e.length,o=e[0]+"";i>r;){for(n=e[r++]+"",t=O-n.length;t--;n="0"+n);o+=n}for(i=o.length;48===o.charCodeAt(--i););return o.slice(0,i+1||1)}function i(e,n){var t,r,i=e.c,o=n.c,u=e.s,s=n.s,f=e.e,l=n.e;if(!u||!s)return null;if(t=i&&!i[0],r=o&&!o[0],t||r)return t?r?0:-s:u;if(u!=s)return u;if(t=0>u,r=f==l,!i||!o)return r?0:!i^t?1:-1;if(!r)return f>l^t?1:-1;for(s=(f=i.length)<(l=o.length)?f:l,u=0;s>u;u++)if(i[u]!=o[u])return i[u]>o[u]^t?1:-1;return f==l?0:f>l^t?1:-1}function o(e,n,t){return(e=c(e))>=n&&t>=e}function u(e){return"[object Array]"==Object.prototype.toString.call(e)}function s(e,n,t){for(var r,i,o=[0],u=0,s=e.length;s>u;){for(i=o.length;i--;o[i]*=n);for(o[r=0]+=N.indexOf(e.charAt(u++));r<o.length;r++)o[r]>t-1&&(null==o[r+1]&&(o[r+1]=0),o[r+1]+=o[r]/t|0,o[r]%=t)}return o.reverse()}function f(e,n){return(e.length>1?e.charAt(0)+"."+e.slice(1):e)+(0>n?"e":"e+")+n}function l(e,n){var t,r;if(0>n){for(r="0.";++n;r+="0");e=r+e}else if(t=e.length,++n>t){for(r="0",n-=t;--n;r+="0");e+=r}else t>n&&(e=e.slice(0,n)+"."+e.slice(n));return e}function c(e){return e=parseFloat(e),0>e?p(e):d(e)}var a,h,g=/^-?(\d+(\.\d*)?|\.\d+)(e[+-]?\d+)?$/i,p=Math.ceil,d=Math.floor,m=" not a boolean or binary digit",w="rounding mode",v="number type has more than 15 significant digits",N="0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ$_",b=1e14,O=14,y=9007199254740991,S=[1,10,100,1e3,1e4,1e5,1e6,1e7,1e8,1e9,1e10,1e11,1e12,1e13],R=1e7,A=1e9;if("undefined"!=typeof crypto&&(a=crypto),"function"==typeof define&&define.amd)define(function(){return n()});else if("undefined"!=typeof module&&module.exports){if(module.exports=n(),!a)try{a=require("crypto")}catch(E){}}else e||(e="undefined"!=typeof self?self:Function("return this")()),e.BigNumber=n()}(this);
</script>
<style>
body{
font-family: 'HelveticaNeue-Light', 'Helvetica Neue Light', 'Helvetica Neue', 'Helvetica', 'Arial', 'Lucida Grande', sans-serif;
background: #E2E2E2;
}
*, *:after, *:before {
box-sizing: border-box;
margin: 0;
padding: 0;
}
#pleasewait{
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
padding: 0;
margin: 0;
}
#infomessage {
text-align: center;
font-size: 1rem;
margin: 0 2rem 4.5rem;
}
.wrapper{
background: #E2E2E2;
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
padding: 0;
margin: 0;
display:none;
text-align: center;
}
.title {
text-align: center;
font-size: 1.2rem;
margin: 1rem 0rem;
}
.message {
text-align: center;
font-size: 1rem;
/*margin: 0 2rem 4.5rem;*/
}
#passwordField {
text-align: center;
font-size: 1rem;
margin: 1rem 0rem;
/*margin: 0 2rem 4.5rem;*/
}
.wrapper button {
background: transparent;
border: none;
color: #1678E5;
height: 3rem;
font-size: 1rem;
width: 50%;
position: absolute;
bottom: 0;
cursor: pointer;
}
#cancel-button {
border-top: 1px solid #B4B4B4;
border-right: 1px solid #B4B4B4;
left: 0;
border-radius: 0 0 0 10px;
}
#confirm-button {
border-top: 1px solid #B4B4B4;
right: 0;
border-radius: 0 0 10px 0;
}
.wrapper button:focus,
.wrapper button:hover {
font-weight: bold;
background: #EFEFEF;
}
.wrapper button:active {
background: #D6D6D6;
}
.button {
margin: 1rem 0rem;
display: inline-block;
padding: 9px 15px;
background-color: #3898EC;
color: white;
border: 0;
line-height: inherit;
text-decoration: none;
cursor: pointer;
border-radius: 0;
}
input.button {
-webkit-appearance: button;
}
</style>
<body>
<div id="pleasewait">
<br/>
<p id="infomessage">Please wait...</p>
</div>
<form id="form" class="wrapper">
<br/>
<p id="message" class="message"></p>
<p id="passwordField"><label>Password Required:</label><input id="password" type="password" /></p>
<button id="cancel-button" type="button" autofocus>Cancel</button>
<button id="confirm-button" type="button" >Confirm</button>
</form>
<div id="modal-dialog" class="wrapper">
<h3 id="modal-dialog-title" class="title">Title</h3>
<p id="modal-dialog-message" class="message">Message</p>
<span id="modal-dialog-button" class="button">Ok</span>
</div>
<script>
var noMessageReceivedYet = true;
var closedByCode = false;
var pleaseWait = document.getElementById("pleasewait");
var form = document.getElementById("form");
var cancelButton = document.getElementById("cancel-button");
var confirmButton = document.getElementById("confirm-button");
var message = document.getElementById("message");
var infoMessage = document.getElementById("infomessage");
var password = document.getElementById("password");
var passwordField = document.getElementById("passwordField");
var modalDialog = document.getElementById("modal-dialog");
var modalDialogButton = document.getElementById("modal-dialog-button");
var modalDialogTitle = document.getElementById("modal-dialog-title");
var modalDialogMessage = document.getElementById("modal-dialog-message");
var firstUrl = null;
var inIframe = true;
var source = null;
if(window.opener){
inIframe = false;
source = window.opener;
}else if(window.parent != window){
source = window.parent;
}else{
console.log("closing");
window.close();
}
function closeWindow(){
closedByCode = true;
window.close();
}
function showWaiting(text){
if(!text){
text = "Please wait..."
}
infoMessage.innerHTML = text;
pleaseWait.style.display = "block";
form.style.display = "none";
}
function hideWaiting(){
pleaseWait.style.display = "none";
form.style.display = "block";
window.onbeforeunload = null;
}
function showMessage(title, message, callback, buttonText){
modalDialog.style.display = "block";
modalDialogTitle.innerHTML = title;
modalDialogMessage.innerHTML = "";
if((typeof message) == "string"){
modalDialogMessage.innerHTML += message;
}else{
modalDialogMessage.appendChild(message);
}
modalDialogMessage.appendChild(document.createElement('br'));
if(!buttonText){
buttonText = "Ok";
}
modalDialogButton.innerHTML = buttonText;
modalDialogButton.onclick = function(){
modalDialogButton.onclick = null;
modalDialog.style.display = "none";
if(callback){
callback();
}
}
}
function hideMessage(){
modalDialog.style.display = "none";
modalDialogButton.onclick = null;
}
function sendAsync(url,payload, callback) {
var request = new XMLHttpRequest();
request.open('POST', url, true);
request.setRequestHeader('Content-Type','application/json');
request.onreadystatechange = function() {
if (request.readyState === 4) {
var result = request.responseText;
var error = null;
try {
result = JSON.parse(result);
} catch(e) {
var message = !!result && !!result.error && !!result.error.message ? result.error.message : 'Invalid JSON RPC response: ' + JSON.stringify(result);
error = {message:message,type:"JsonParse"};
}
callback(error, result);
}
};
try {
request.send(JSON.stringify(payload));
} catch(e) {
callback({message:'CONNECTION ERROR: Couldn\'t connect to node '+ url +'.',type:"noConnection"});
}
}
function addBlocky(message, address){
var icon = blockies.create({
seed: address,
size: 8,
scale: 6
});
message.appendChild(icon);
}
function askAuthorization(transactionInfo, data, requireUnlock, sourceWindow){
var value = transactionInfo["value"] ? transactionInfo.value : "0";
var gasProvided = transactionInfo.gas;
var gasPriceProvided = transactionInfo.gasPrice;
var gasPrice = new BigNumber(gasPriceProvided,16);
var gas = new BigNumber(gasProvided,16);
var weiValue = new BigNumber(value,16);
var gasWeiValue = gas.times(gasPrice);
var etherValue = weiValue.dividedBy(new BigNumber("1000000000000000000"));
var gasEtherValue = gasWeiValue.dividedBy(new BigNumber("1000000000000000000"));
hideWaiting();
message.innerHTML = "";
addBlocky(message,transactionInfo.from);
var span = document.createElement('span');
span.style="font-size:3em;";
span.innerHTML = " " + "→" + " ";
message.appendChild(span);
addBlocky(message,transactionInfo.to);
message.appendChild(document.createElement('br'));
var textSpan = document.createElement("span");
message.appendChild(textSpan);
textSpan.innerHTML = etherValue.toFormat() + " ether <br/> + gas cost (" + gasEtherValue.toFormat() + " ether )"
if(requireUnlock){
passwordField.style.display = "block";
}else{
passwordField.style.display = "none";
}
cancelButton.onclick = function(){
sourceWindow.postMessage({id:data.id,result:null,error:{message:"Not Authorized"},type:"cancel"},firstUrl);
closeWindow();
}
var submitFunc = function(){
window.onbeforeunload = function (event) {
if(!closedByCode){
return "do not close now as a transaction is progress, this cannot be canceled and we wait for an answer";
}
};
if(requireUnlock){
if(password.value == ""){
password.style.border = "2px solid red";
return false;
}
password.style.border = "none";
var params = [transactionInfo.from,password.value,3];
showWaiting("Please wait...<br/>Do not close the window.");
sendAsync(data.url,{id:999992,method:"personal_unlockAccount",params:params},function(error,result){
if(error || result.error){
showMessage("Error unlocking account", "Please retry.", hideWaiting);
}else{
sendAsync(data.url,data.payload,function(error,result){
sourceWindow.postMessage({id:data.id,result:result,error:error},firstUrl);
closeWindow();
});
}
});
}else{
sendAsync(data.url,data.payload,function(error,result){
if(result && result.error){
processMessage(data,sourceWindow);
}else{
sourceWindow.postMessage({id:data.id,result:result,error:error},firstUrl);
closeWindow();
}
});
showWaiting();
}
return false;
}
form.onsubmit = submitFunc;
confirmButton.onclick = submitFunc;
}
function needToAndCanUnlockAccount(address,url,callback){
sendAsync(url,{id:9999990,method:"eth_sign",params:[address,"0xc6888fa8d57087278718986382264244252f8d57087278718986382264244252f"]},function(error,result){
if(error || result.error){
sendAsync(url,{id:9999991,method:"personal_listAccounts",params:[]},function(error,result){
if(error || result.error){
callback(true,false);
}else{
callback(true,true);
}
});
}else{
callback(false);
}
});
}
function receiveMessage(event){
if(event.source != source){
return;
}
if(firstUrl){
if(firstUrl != event.origin){
return;
}
}else{
firstUrl = event.origin;
}
hideMessage();
noMessageReceivedYet = false;
var data = event.data;
try{
processMessage(data,event.source);
}catch(e){
event.source.postMessage({id:data.id,result:null,error:{message:"Could not process message data"},type:"notValid"},firstUrl);
showMessage("Error","The application has sent invalid data", function(){
closeWindow();
});
}
}
var allowedMethods = [
"web3_clientVersion"
,"web3_sha3"
,"net_version"
,"net_peerCount"
,"net_listening"
,"eth_protocolVersion"
,"eth_syncing"
,"eth_coinbase"
,"eth_mining"
,"eth_hashrate"
,"eth_gasPrice"
,"eth_accounts"
,"eth_blockNumber"
,"eth_getBalance"
,"eth_getStorageAt"
,"eth_getTransactionCount"
,"eth_getBlockTransactionCountByHash"
,"eth_getBlockTransactionCountByNumber"
,"eth_getUncleCountByBlockHash"
,"eth_getUncleCountByBlockNumber"
,"eth_getCode"
,"eth_sendRawTransaction"
,"eth_call"
,"eth_estimateGas"
,"eth_getBlockByHash"
,"eth_getBlockByNumber"
,"eth_getTransactionByHash"
,"eth_getTransactionByBlockHashAndIndex"
,"eth_getTransactionByBlockNumberAndIndex"
,"eth_getTransactionReceipt"
,"eth_getUncleByBlockHashAndIndex"
,"eth_getUncleByBlockNumberAndIndex"
,"eth_getCompilers"
,"eth_compileLLL"
,"eth_compileSolidity"
,"eth_compileSerpent"
,"eth_newFilter"
,"eth_newBlockFilter"
,"eth_newPendingTransactionFilter"
,"eth_uninstallFilter"
,"eth_getFilterChanges"
,"eth_getFilterLogs"
,"eth_getLogs"
,"eth_getWork"
,"eth_submitWork"
,"eth_submitHashrate"
// ,"shh_post"
// ,"shh_version"
// ,"shh_newIdentity"
// ,"shh_hasIdentity"
// ,"shh_newGroup"
// ,"shh_addToGroup"
// ,"shh_newFilter"
// ,"shh_uninstallFilter"
// ,"shh_getFilterChanges"
// ,"shh_getMessages"
];
function isMethodAllowed(method){
return allowedMethods.indexOf(method) != -1;
}
function processMessage(data, sourceWindow){
if(inIframe){
if(isMethodAllowed(data.payload.method)){
sendAsync(data.url,data.payload,function(error,result){
sourceWindow.postMessage({id:data.id,result:result,error:error},firstUrl);
});
}else{
sourceWindow.postMessage({id:data.id,result:null,error:{message:"method (" + data.payload.method + ") not allowed in iframe"},type:"notAllowed"},firstUrl);
}
}else if(data.payload.method == "eth_sendTransaction"){
var transactionInfo = null;
if(data.payload.params.length > 0){
if(data.payload.params[0]["gas"] && data.payload.params[0]["gasPrice"] && data.payload.params[0]["to"] && data.payload.params[0]["from"]){
transactionInfo = data.payload.params[0];
}
}
if(transactionInfo != null){
needToAndCanUnlockAccount(transactionInfo.from,data.url,function(requireUnlock,canUnlock){
if(requireUnlock && canUnlock){
askAuthorization(transactionInfo,data,true, sourceWindow);
}else if(!requireUnlock){
askAuthorization(transactionInfo,data,false,sourceWindow);
}else if(requireUnlock && !canUnlock){
var messageHtml = document.createElement('span');
addBlocky(messageHtml,transactionInfo.from);
messageHtml.appendChild(document.createElement('br'));
var span = document.createElement('span');
span.innerHTML = "You need to unlock your account first : <br/>" + transactionInfo.from;
messageHtml.appendChild(span);
showMessage("Account Locked",messageHtml,function(){
processMessage(data,sourceWindow);
}, "Done");
}
});
}else{
sourceWindow.postMessage({id:data.id,result:null,error:{message:"Need to specify from , to, gas and gasPrice"},type:"notValid"},firstUrl);
closeWindow();
}
}else{
sourceWindow.postMessage({id:data.id,result:null,error:{message:"method (" + data.payload.method + ") not allowed in popup"},type:"notAllowed"},firstUrl);
}
}
function checkMessageNotReceived(){
if(noMessageReceivedYet){
showMessage("Error","No transaction received. Please make sure popup are not blocked.", function(){
closeWindow();
});
}
}
setTimeout(checkMessageNotReceived,1000);
window.addEventListener("message", receiveMessage);
if(source){
source.postMessage("ready","*");
}
</script>
</body>
</html>
Copyright and related rights waived via CC0.