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shadowcrypt.js
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var Compat = {
afterSubmit: function (f) { setTimeout(f, 0); },
getInnerText: function (e) { return e.innerText; },
matches: function (e, s) { return e.webkitMatchesSelector(s); }
};
var Content = {};
Content.within = function () {
function onSetup(e) {
setup(e.target.contentWindow);
}
function onShimProp(e) {
var node = e.target;
var name = e.detail.name;
var value = e.detail.value;
Object.defineProperty(node, name, {
get: function () {
return value;
},
set: function (v) {
value = v;
var event = new CustomEvent('shadowcrypt-prop-set-' + name, {detail: value});
node.dispatchEvent(event);
}
});
node.addEventListener('shadowcrypt-set-prop-' + name, function (e) {
value = e.detail;
});
}
function onShimMethod(e) {
// no args or return value lol
var node = e.target;
var name = e.detail.name;
node[name] = function () {
var event = new Event('shadowcrypt-method-call-' + name);
node.dispatchEvent(event);
};
}
function onDeleteProp(e) {
var node = e.target;
var name = e.detail.name;
delete node[name];
}
function notInContentEditable(win, selection) {
return !(win.document.hasFocus() && win.document.activeElement.contentEditable === 'true');
}
var warned = false;
function gateMethodProto(proto, methodName, predicate) {
var orig = proto[methodName];
proto[methodName] = function () {
if (predicate(this)) return orig.apply(this, arguments);
if (!warned) {
console.warn('ignoring method ' + methodName);
warned = true;
}
};
}
function selectorIsUnsafe(selectors) {
selectors = '' + selectors;
var withoutStrings = selectors
.replace(/"(?:\\\\|\\"|[^"\\]")*"/g, '""')
.replace(/'(?:\\\\|\\'|[^'\\]')*"/g, '\'\'');
// http://dev.w3.org/csswg/css-scoping/#deep-combinator
return /\/deep\/|>>>/.test(withoutStrings);
}
function shimQuerySelector(proto) {
var origQuerySelector = proto.querySelector;
proto.querySelector = function (selectors) {
if (selectorIsUnsafe(selectors)) return null;
return origQuerySelector.call(this, selectors);
};
var origQuerySelectorAll = proto.querySelectorAll;
proto.querySelectorAll = function (selectors) {
if (selectorIsUnsafe(selectors)) return origQuerySelectorAll.call(this, ':not(*|*)');
return origQuerySelectorAll.call(this, selectors);
};
}
function shimSelectorsAPI(win) {
shimQuerySelector(win.Document.prototype);
shimQuerySelector(win.DocumentFragment.prototype);
shimQuerySelector(win.Element.prototype);
}
function setup(win) {
win.addEventListener('shadowcrypt-add-listeners', onSetup, true);
win.addEventListener('shadowcrypt-shim-prop', onShimProp, true);
win.addEventListener('shadowcrypt-shim-method', onShimMethod, true);
win.addEventListener('shadowcrypt-delete-prop', onDeleteProp, true);
// caveat: you can't touch selection anymore
gateMethodProto(win.Selection.prototype, 'removeAllRanges', notInContentEditable.bind(null, win));
gateMethodProto(win.Selection.prototype, 'addRange', notInContentEditable.bind(null, win));
// caveat: breaks shadow dom for content
delete Element.createShadowRoot;
shimSelectorsAPI(win);
}
setup(window);
};
Content.init = function () {
var script = document.createElement('script');
script.textContent = '(' + Content.within + ')();';
document.documentElement.appendChild(script);
};
Content.propagate = function (iframe) {
var event = new Event('shadowcrypt-add-listeners', false, false);
iframe.dispatchEvent(event);
};
Content.shimProp = function (node, name, value, handler) {
node.addEventListener('shadowcrypt-prop-set-' + name, function (e) {
handler(e.detail);
});
var event = new CustomEvent('shadowcrypt-shim-prop', {detail: {name: name, value: value}});
node.dispatchEvent(event);
return function (v) {
var event = new CustomEvent('shadowcrypt-set-prop-' + name, {detail: v});
node.dispatchEvent(event);
};
};
Content.shimMethod = function (node, name, handler) {
node.addEventListener('shadowcrypt-method-call-' + name, function (e) {
handler();
});
var event = new CustomEvent('shadowcrypt-shim-method', {detail: {name: name}});
node.dispatchEvent(event);
};
Content.deleteProp = function (node, name) {
var event = new CustomEvent('shadowcrypt-delete-prop', {detail: {name: name}});
node.dispatchEvent(event);
};
// this is sjcl configured with:
// --compress=yui --without-all --with-aes --with-bitArray --with-codecString --with-codecHex --with-codecBase64 --with-sha256 --with-ccm --with-hmac
var sjcl={cipher:{},hash:{},keyexchange:{},mode:{},misc:{},codec:{},exception:{corrupt:function(a){this.toString=function(){return"CORRUPT: "+this.message};this.message=a},invalid:function(a){this.toString=function(){return"INVALID: "+this.message};this.message=a},bug:function(a){this.toString=function(){return"BUG: "+this.message};this.message=a},notReady:function(a){this.toString=function(){return"NOT READY: "+this.message};this.message=a}}};sjcl.cipher.aes=function(h){if(!this._tables[0][0][0]){this._precompute()}var d,c,e,g,l,f=this._tables[0][4],k=this._tables[1],a=h.length,b=1;if(a!==4&&a!==6&&a!==8){throw new sjcl.exception.invalid("invalid aes key size")}this._key=[g=h.slice(0),l=[]];for(d=a;d<4*a+28;d++){e=g[d-1];if(d%a===0||(a===8&&d%a===4)){e=f[e>>>24]<<24^f[e>>16&255]<<16^f[e>>8&255]<<8^f[e&255];if(d%a===0){e=e<<8^e>>>24^b<<24;b=b<<1^(b>>7)*283}}g[d]=g[d-a]^e}for(c=0;d;c++,d--){e=g[c&3?d:d-4];if(d<=4||c<4){l[c]=e}else{l[c]=k[0][f[e>>>24]]^k[1][f[e>>16&255]]^k[2][f[e>>8&255]]^k[3][f[e&255]]}}};sjcl.cipher.aes.prototype={encrypt:function(a){return this._crypt(a,0)},decrypt:function(a){return this._crypt(a,1)},_tables:[[[],[],[],[],[]],[[],[],[],[],[]]],_precompute:function(){var j=this._tables[0],q=this._tables[1],h=j[4],n=q[4],g,l,f,k=[],c=[],b,p,m,o,e,a;for(g=0;g<0x100;g++){c[(k[g]=g<<1^(g>>7)*283)^g]=g}for(l=f=0;!h[l];l^=b||1,f=c[f]||1){o=f^f<<1^f<<2^f<<3^f<<4;o=o>>8^o&255^99;h[l]=o;n[o]=l;m=k[p=k[b=k[l]]];a=m*0x1010101^p*0x10001^b*0x101^l*0x1010100;e=k[o]*0x101^o*0x1010100;for(g=0;g<4;g++){j[g][l]=e=e<<24^e>>>8;q[g][o]=a=a<<24^a>>>8}}for(g=0;g<5;g++){j[g]=j[g].slice(0);q[g]=q[g].slice(0)}},_crypt:function(k,n){if(k.length!==4){throw new sjcl.exception.invalid("invalid aes block size")}var y=this._key[n],v=k[0]^y[0],u=k[n?3:1]^y[1],t=k[2]^y[2],s=k[n?1:3]^y[3],w,e,m,x=y.length/4-2,p,o=4,q=[0,0,0,0],r=this._tables[n],j=r[0],h=r[1],g=r[2],f=r[3],l=r[4];for(p=0;p<x;p++){w=j[v>>>24]^h[u>>16&255]^g[t>>8&255]^f[s&255]^y[o];e=j[u>>>24]^h[t>>16&255]^g[s>>8&255]^f[v&255]^y[o+1];m=j[t>>>24]^h[s>>16&255]^g[v>>8&255]^f[u&255]^y[o+2];s=j[s>>>24]^h[v>>16&255]^g[u>>8&255]^f[t&255]^y[o+3];o+=4;v=w;u=e;t=m}for(p=0;p<4;p++){q[n?3&-p:p]=l[v>>>24]<<24^l[u>>16&255]<<16^l[t>>8&255]<<8^l[s&255]^y[o++];w=v;v=u;u=t;t=s;s=w}return q}};sjcl.bitArray={bitSlice:function(b,c,d){b=sjcl.bitArray._shiftRight(b.slice(c/32),32-(c&31)).slice(1);return(d===undefined)?b:sjcl.bitArray.clamp(b,d-c)},extract:function(c,d,f){var b,e=Math.floor((-d-f)&31);if((d+f-1^d)&-32){b=(c[d/32|0]<<(32-e))^(c[d/32+1|0]>>>e)}else{b=c[d/32|0]>>>e}return b&((1<<f)-1)},concat:function(c,a){if(c.length===0||a.length===0){return c.concat(a)}var d,e,f=c[c.length-1],b=sjcl.bitArray.getPartial(f);if(b===32){return c.concat(a)}else{return sjcl.bitArray._shiftRight(a,b,f|0,c.slice(0,c.length-1))}},bitLength:function(d){var c=d.length,b;if(c===0){return 0}b=d[c-1];return(c-1)*32+sjcl.bitArray.getPartial(b)},clamp:function(d,b){if(d.length*32<b){return d}d=d.slice(0,Math.ceil(b/32));var c=d.length;b=b&31;if(c>0&&b){d[c-1]=sjcl.bitArray.partial(b,d[c-1]&2147483648>>(b-1),1)}return d},partial:function(b,a,c){if(b===32){return a}return(c?a|0:a<<(32-b))+b*0x10000000000},getPartial:function(a){return Math.round(a/0x10000000000)||32},equal:function(e,d){if(sjcl.bitArray.bitLength(e)!==sjcl.bitArray.bitLength(d)){return false}var c=0,f;for(f=0;f<e.length;f++){c|=e[f]^d[f]}return(c===0)},_shiftRight:function(d,c,h,f){var g,b=0,e;if(f===undefined){f=[]}for(;c>=32;c-=32){f.push(h);h=0}if(c===0){return f.concat(d)}for(g=0;g<d.length;g++){f.push(h|d[g]>>>c);h=d[g]<<(32-c)}b=d.length?d[d.length-1]:0;e=sjcl.bitArray.getPartial(b);f.push(sjcl.bitArray.partial(c+e&31,(c+e>32)?h:f.pop(),1));return f},_xor4:function(a,b){return[a[0]^b[0],a[1]^b[1],a[2]^b[2],a[3]^b[3]]}};sjcl.codec.utf8String={fromBits:function(a){var b="",e=sjcl.bitArray.bitLength(a),d,c;for(d=0;d<e/8;d++){if((d&3)===0){c=a[d/4]}b+=String.fromCharCode(c>>>24);c<<=8}return decodeURIComponent(escape(b))},toBits:function(d){d=unescape(encodeURIComponent(d));var a=[],c,b=0;for(c=0;c<d.length;c++){b=b<<8|d.charCodeAt(c);if((c&3)===3){a.push(b);b=0}}if(c&3){a.push(sjcl.bitArray.partial(8*(c&3),b))}return a}};sjcl.codec.hex={fromBits:function(b){var c="",d,a;for(d=0;d<b.length;d++){c+=((b[d]|0)+0xf00000000000).toString(16).substr(4)}return c.substr(0,sjcl.bitArray.bitLength(b)/4)},toBits:function(d){var c,b=[],a;d=d.replace(/\s|0x/g,"");a=d.length;d=d+"00000000";for(c=0;c<d.length;c+=8){b.push(parseInt(d.substr(c,8),16)^0)}return sjcl.bitArray.clamp(b,a*4)}};sjcl.codec.base64={_chars:"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/",fromBits:function(g,k,b){var d="",e,j=0,h=sjcl.codec.base64._chars,f=0,a=sjcl.bitArray.bitLength(g);if(b){h=h.substr(0,62)+"-_"}for(e=0;d.length*6<a;){d+=h.charAt((f^g[e]>>>j)>>>26);if(j<6){f=g[e]<<(6-j);j+=26;e++}else{f<<=6;j-=6}}while((d.length&3)&&!k){d+="="}return d},toBits:function(h,f){h=h.replace(/\s|=/g,"");var d=[],e,g=0,j=sjcl.codec.base64._chars,b=0,a;if(f){j=j.substr(0,62)+"-_"}for(e=0;e<h.length;e++){a=j.indexOf(h.charAt(e));if(a<0){throw new sjcl.exception.invalid("this isn't base64!")}if(g>26){g-=26;d.push(b^a>>>g);b=a<<(32-g)}else{g+=6;b^=a<<(32-g)}}if(g&56){d.push(sjcl.bitArray.partial(g&56,b,1))}return d}};sjcl.codec.base64url={fromBits:function(a){return sjcl.codec.base64.fromBits(a,1,1)},toBits:function(a){return sjcl.codec.base64.toBits(a,1)}};sjcl.hash.sha256=function(a){if(!this._key[0]){this._precompute()}if(a){this._h=a._h.slice(0);this._buffer=a._buffer.slice(0);this._length=a._length}else{this.reset()}};sjcl.hash.sha256.hash=function(a){return(new sjcl.hash.sha256()).update(a).finalize()};sjcl.hash.sha256.prototype={blockSize:512,reset:function(){this._h=this._init.slice(0);this._buffer=[];this._length=0;return this},update:function(f){if(typeof f==="string"){f=sjcl.codec.utf8String.toBits(f)}var e,a=this._buffer=sjcl.bitArray.concat(this._buffer,f),d=this._length,c=this._length=d+sjcl.bitArray.bitLength(f);for(e=512+d&-512;e<=c;e+=512){this._block(a.splice(0,16))}return this},finalize:function(){var c,a=this._buffer,d=this._h;a=sjcl.bitArray.concat(a,[sjcl.bitArray.partial(1,1)]);for(c=a.length+2;c&15;c++){a.push(0)}a.push(Math.floor(this._length/0x100000000));a.push(this._length|0);while(a.length){this._block(a.splice(0,16))}this.reset();return d},_init:[],_key:[],_precompute:function(){var d=0,c=2,b;function a(e){return(e-Math.floor(e))*0x100000000|0}outer:for(;d<64;c++){for(b=2;b*b<=c;b++){if(c%b===0){continue outer}}if(d<8){this._init[d]=a(Math.pow(c,1/2))}this._key[d]=a(Math.pow(c,1/3));d++}},_block:function(q){var e,f,t,s,u=q.slice(0),j=this._h,c=this._key,r=j[0],p=j[1],o=j[2],n=j[3],m=j[4],l=j[5],g=j[6],d=j[7];for(e=0;e<64;e++){if(e<16){f=u[e]}else{t=u[(e+1)&15];s=u[(e+14)&15];f=u[e&15]=((t>>>7^t>>>18^t>>>3^t<<25^t<<14)+(s>>>17^s>>>19^s>>>10^s<<15^s<<13)+u[e&15]+u[(e+9)&15])|0}f=(f+d+(m>>>6^m>>>11^m>>>25^m<<26^m<<21^m<<7)+(g^m&(l^g))+c[e]);d=g;g=l;l=m;m=n+f|0;n=o;o=p;p=r;r=(f+((p&o)^(n&(p^o)))+(p>>>2^p>>>13^p>>>22^p<<30^p<<19^p<<10))|0}j[0]=j[0]+r|0;j[1]=j[1]+p|0;j[2]=j[2]+o|0;j[3]=j[3]+n|0;j[4]=j[4]+m|0;j[5]=j[5]+l|0;j[6]=j[6]+g|0;j[7]=j[7]+d|0}};sjcl.mode.ccm={name:"ccm",encrypt:function(c,b,e,m,d){var j,g,f=b.slice(0),l,k=sjcl.bitArray,a=k.bitLength(e)/8,h=k.bitLength(f)/8;d=d||64;m=m||[];if(a<7){throw new sjcl.exception.invalid("ccm: iv must be at least 7 bytes")}for(j=2;j<4&&h>>>8*j;j++){}if(j<15-a){j=15-a}e=k.clamp(e,8*(15-j));l=sjcl.mode.ccm._computeTag(c,b,e,m,d,j);f=sjcl.mode.ccm._ctrMode(c,f,e,l,d,j);return k.concat(f.data,f.tag)},decrypt:function(b,c,e,n,d){d=d||64;n=n||[];var j,g,l=sjcl.bitArray,a=l.bitLength(e)/8,h=l.bitLength(c),f=l.clamp(c,h-d),m=l.bitSlice(c,h-d),k;h=(h-d)/8;if(a<7){throw new sjcl.exception.invalid("ccm: iv must be at least 7 bytes")}for(j=2;j<4&&h>>>8*j;j++){}if(j<15-a){j=15-a}e=l.clamp(e,8*(15-j));f=sjcl.mode.ccm._ctrMode(b,f,e,m,d,j);k=sjcl.mode.ccm._computeTag(b,f.data,e,n,d,j);if(!l.equal(f.tag,k)){throw new sjcl.exception.corrupt("ccm: tag doesn't match")}return f.data},_computeTag:function(d,c,f,p,e,m){var b,l,n=0,g=24,j,h,a=[],o=sjcl.bitArray,k=o._xor4;e/=8;if(e%2||e<4||e>16){throw new sjcl.exception.invalid("ccm: invalid tag length")}if(p.length>0xffffffff||c.length>0xffffffff){throw new sjcl.exception.bug("ccm: can't deal with 4GiB or more data")}l=[o.partial(8,(p.length?1<<6:0)|(e-2)<<2|m-1)];l=o.concat(l,f);l[3]|=o.bitLength(c)/8;l=d.encrypt(l);if(p.length){j=o.bitLength(p)/8;if(j<=65279){a=[o.partial(16,j)]}else{if(j<=0xffffffff){a=o.concat([o.partial(16,65534)],[j])}}a=o.concat(a,p);for(h=0;h<a.length;h+=4){l=d.encrypt(k(l,a.slice(h,h+4).concat([0,0,0])))}}for(h=0;h<c.length;h+=4){l=d.encrypt(k(l,c.slice(h,h+4).concat([0,0,0])))}return o.clamp(l,e*8)},_ctrMode:function(d,j,g,q,f,n){var h,k,p=sjcl.bitArray,m=p._xor4,c,o,e=j.length,a=p.bitLength(j);c=p.concat([p.partial(8,n-1)],g).concat([0,0,0]).slice(0,4);q=p.bitSlice(m(q,d.encrypt(c)),0,f);if(!e){return{tag:q,data:[]}}for(k=0;k<e;k+=4){c[3]++;h=d.encrypt(c);j[k]^=h[0];j[k+1]^=h[1];j[k+2]^=h[2];j[k+3]^=h[3]}return{tag:q,data:p.clamp(j,a)}}};sjcl.misc.hmac=function(d,e){this._hash=e=e||sjcl.hash.sha256;var c=[[],[]],b,a=e.prototype.blockSize/32;this._baseHash=[new e(),new e()];if(d.length>a){d=e.hash(d)}for(b=0;b<a;b++){c[0][b]=d[b]^909522486;c[1][b]=d[b]^1549556828}this._baseHash[0].update(c[0]);this._baseHash[1].update(c[1]);this._resultHash=new e(this._baseHash[0])};sjcl.misc.hmac.prototype.encrypt=sjcl.misc.hmac.prototype.mac=function(a){if(!this._updated){this.update(a);return this.digest(a)}else{throw new sjcl.exception.invalid("encrypt on already updated hmac called!")}};sjcl.misc.hmac.prototype.reset=function(){this._resultHash=new this._hash(this._baseHash[0]);this._updated=false};sjcl.misc.hmac.prototype.update=function(a){this._updated=true;this._resultHash.update(a)};sjcl.misc.hmac.prototype.digest=function(){var b=this._resultHash.finalize(),a=new (this._hash)(this._baseHash[1]).update(b).finalize();this.reset();return a};
var Crypto = {
keys: {},
cipher: sjcl.cipher.aes,
mode: sjcl.mode.ccm,
hash: sjcl.hash.sha256,
ivLength: 4
};
Crypto.getKey = function (fingerprint) {
if (!(fingerprint in Crypto.keys)) throw new Error('unknown fingerprint', fingerprint);
return Crypto.keys[fingerprint];
};
Crypto.hmac = function (secret, data) {
var hmac = new sjcl.misc.hmac(secret, Crypto.hash);
hmac.update(sjcl.codec.utf8String.toBits(data));
return sjcl.codec.hex.fromBits(hmac.digest());
};
Crypto.encrypt = function (secret, data, adata) {
var pt = sjcl.codec.utf8String.toBits(data);
var iv = Array.prototype.slice.call(window.crypto.getRandomValues(new Uint32Array(Crypto.ivLength)));
var ct = Crypto.mode.encrypt(new Crypto.cipher(secret), pt, iv, sjcl.codec.utf8String.toBits(adata));
return sjcl.codec.base64.fromBits(iv.concat(ct));
};
Crypto.decrypt = function (secret, data, adata) {
var ct = sjcl.codec.base64.toBits(data);
var iv = ct.splice(0, Crypto.ivLength);
var pt = Crypto.mode.decrypt(new Crypto.cipher(secret), ct, iv, sjcl.codec.utf8String.toBits(adata));
return sjcl.codec.utf8String.fromBits(pt);
};
var Bloom = function (secret) {
this.secret = secret;
this.bits = {};
this.count = 0;
};
Bloom.PREFIX_SHIFT = 25;
Bloom.M = 128;
Bloom.N = 20;
Bloom.K = 4;
Bloom.EXTRA_WORD_LENGTH = 8;
Bloom.prototype.hash = function (index, data) {
var hmac = new sjcl.misc.hmac(this.secret, Crypto.hash);
hmac.update([index]);
hmac.update([0]);
hmac.update(sjcl.codec.utf8String.toBits(data));
return hmac.digest()[0] >>> Crypto.BLOOM_PREFIX_SHIFT;
};
Bloom.prototype.addInternal = function (item) {
for (var j = 0; j < Bloom.K; j++) {
this.bits[this.hash(j, b)] = true;
}
this.count++;
};
Bloom.prototype.addReal = function (data) {
if (this.count >= Bloom.N) throw new Error('too many unique words');
var item = sjcl.codec.utf8String.toBits(data);
this.addInternal(item);
};
Bloom.prototype.addRandom = function () {
var item = window.crypto.getRandomValues(new Uint32Array(Bloom.EXTRA_WORD_LENGTH));
this.addInternal(item);
};
Bloom.prototype.pad = function () {
while (this.count < Bloom.K) {
this.addRandom();
}
};
var Scanner = function (impl, root) {
this.root = root;
this.iter = impl.createNodeIterator(root, NodeFilter.SHOW_TEXT);
this.u = 0;
this.v = 0;
this.next();
};
Scanner.getNodeLength = function (node) {
// simplified implementation of
// http://dom.spec.whatwg.org/#concept-node-length
// supporting only Element and CharacterData Nodes
if (node.nodeType === Document.TYPE_ELEMENT) {
return node.childNodes.length;
} else {
return node.length;
}
};
Scanner.prototype.next = function () {
this.n = this.iter.nextNode();
this.u = this.v;
this.v = this.u + this.n.length;
};
Scanner.prototype.setStart = function (range, index) {
while (this.n) {
if (index >= this.u && index < this.v) return range.setStart(this.n, index - this.u);
this.next();
}
throw new Error('index out of bounds', index);
};
Scanner.prototype.setEnd = function (range, index) {
while (this.n) {
if (index > this.u && index <= this.v) return range.setEnd(this.n, index - this.u);
this.next();
}
throw new Error('index out of bounds', index);
};
Scanner.prototype.sink = function (range, light) {
// 1. sink from offsets to containers
if (range.startOffset !== 0) return;
if (range.endOffset !== Scanner.getNodeLength(range.endContainer)) return;
// 2. sink from containers to common ancestor
var ancestor = range.commonAncestorContainer;
var startContainer = range.startContainer;
while (startContainer !== ancestor) {
if (startContainer.previousSibling) return;
startContainer = startContainer.parentNode;
}
var endContainer = range.endContainer;
while (endContainer !== ancestor) {
if (endContainer.nextSibling) return;
endContainer = endContainer.parentNode;
}
if (light) {
// 3a. done
range.selectNodeContents(ancestor);
} else {
// 3b. sink from common ancestor to first ancestor with sibling
while (ancestor !== this.root) {
if (ancestor.previousSibling) break;
if (ancestor.nextSibling) break;
ancestor = ancestor.parentNode;
}
// 4b. done
range.selectNode(ancestor);
}
};
var Tags = {
LINK_PATTERN: /(?:@|#|\/r\/|\/u\/)\w+/g,
LINK_TEST_PATTERN: /^(?:@|#|\/r\/|\/u\/)\w+$/, // same as above, but with ^...$
WORD_PATTERN: /\w+/g, // todo: this could be better
modes: {}
};
Tags.modes.none = function (secret, message) {
// nothing!
};
Tags.modes.links = function (secret, message) {
var tags = [];
var seen = {};
var match;
while (match = Tags.LINK_PATTERN.exec(message)) {
var tag = match[0];
if (tag in seen) continue;
tags.push(tag);
seen[tag] = true;
}
return tags;
};
Tags.modes.words = function (secret, message) {
var tags = [];
var seen = {};
var match;
while (match = Tags.WORD_PATTERN.exec(message)) {
// note: case sensitive
var word = match[0];
var name = ':' + word;
if (name in seen) continue;
var tag = Crypto.hmac(secret, word);
tags.push(tag);
seen[name] = true;
}
return tags.sort();
};
Tags.modes.wordsQuery = function (secret, message) {
return Tags.modes.words(secret, message);
};
Tags.modes.wordsQuery.queryOnly = true;
Tags.modes.bloom = function (secret, message) {
var match;
var seen = {};
var bloom = new Bloom(secret);
var count = 0;
while (match = Tags.WORD_PATTERN.exec(message)) {
var word = match[0];
var name = ':' + word;
if (name in seen) continue;
bloom.add(word);
seen[name] = true;
}
var tags = [];
for (var i = 0; i < Bloom.M; i++) {
if (i in b) tags.push('b' + i);
}
return tags;
};
Tags.readLinks = function (impl, scanner, text, match) {
var start = match.index + 16 + match[1].length + match[2].length;
var end = start + match[3].length;
var tags = [];
while (start < end) {
var comma = text.indexOf(',', start);
if (comma === -1 || comma > end) comma = end;
var tag = text.slice(start, comma);
if (!Tags.LINK_TEST_PATTERN.test(tag)) continue;
var range = impl.createRange();
scanner.setStart(range, start);
scanner.setEnd(range, comma);
scanner.sink(range);
tags.push([tag, range.cloneContents()]);
start = comma + 1;
}
return tags;
};
Tags.insertLinks = function (impl, message, tags) {
// might have matched CODE_PATTERN[3] but not any LINK_PATTERN
if (!tags.length) return impl.createTextNode(message);
var frags = [];
var map = {};
for (var i = 0; i < tags.length; i++) {
frags.push(tags[i][0] + '\\b');
map[tags[i][0]] = tags[i][1];
}
var pattern = new RegExp(frags.join('|'), 'g');
var result = impl.createDocumentFragment();
var last = 0;
var match;
while (match = pattern.exec(message)) {
if (match.index > last) {
result.appendChild(impl.createTextNode(message.slice(last, match.index)));
}
result.appendChild(map[match[0]].cloneNode(true)); // lol chrome defaults to (false)
last = match.index + match[0].length;
}
if (last < message.length) {
result.appendChild(impl.createTextNode(message.slice(last)));
}
return result;
};
var Codec = {
CODE_PATTERN: /=\?shadowcrypt-(\w*)\?([A-Za-z0-9+\/=]*)\?([^?\s]*)\?=/g
// reflect changes in Tags.readLinks
};
Codec.encode = function (mode, fingerprint, message) {
if (message === '') return '';
var key = Crypto.getKey(fingerprint);
if (mode.queryOnly) {
return mode(message).join(' ');
} else {
var tags = mode(key.secret, message).join(',');
var data = Crypto.encrypt(key.secret, message, tags);
return '=?shadowcrypt-' + fingerprint + '?' + data + '?' + tags + '?=';
}
};
Codec.decode = function (fingerprint, data, tags) {
var key = Crypto.getKey(fingerprint);
return Crypto.decrypt(key.secret, data, tags);
};
var Rewriter = {
FAST_FAIL_QUERY: '=?shadowcrypt-',
HIGHLIGHT_COLORS: [
'rgba(51,153,153,0.125)',
'rgba(51,102,153,0.125)',
'rgba(102,102,153,0.125)',
'rgba(173,73,119,0.125)',
'rgba(209,174,74,0.125)',
'rgba(153,102,51,0.125)',
'rgba(102,102,102,0.125)'
]
};
Rewriter.fastFail = function (text) {
var index = text.indexOf(Rewriter.FAST_FAIL_QUERY);
if (index === -1) return true;
Codec.CODE_PATTERN.lastIndex = index;
return false;
};
Rewriter.checkBlacklist = function (node) {
if (!node) return false;
if (node.nodeType === Document.ELEMENT_NODE) {
if ('shadowcryptReplaced' in node) return true;
if ('shadowcryptUpdateContent' in node) return true;
if (node.tagName.toLowerCase() === 'textarea') return true;
}
return Rewriter.checkBlacklist(node.parentNode);
};
Rewriter.checkRangeEndpoints = function (range) {
var startElement = range.startContainer;
if (startElement.nodeType !== Document.ELEMENT_NODE) startElement = startElement.parentNode;
var endElement = range.endContainer;
if (endElement.nodeType !== Document.ELEMENT_NODE) endElement = endElement.parentNode;
return startElement === endElement;
};
Rewriter.findCodes = function (impl, node) {
// caveat: textContent includes comments and processing instructions
var text = node.textContent;
if (Rewriter.fastFail(text)) return null;
var codes = [];
var scanner = new Scanner(impl, node);
var match;
while (match = Codec.CODE_PATTERN.exec(text)) {
try {
var range = impl.createRange();
scanner.setStart(range, match.index);
if (Rewriter.checkBlacklist(range.startContainer)) continue;
var key = Crypto.getKey(match[1]);
var messageText = Codec.decode(match[1], match[2], match[3]);
var messageNode;
if (match[3]) {
var tags = Tags.readLinks(impl, scanner, text, match);
messageNode = Tags.insertLinks(impl, messageText, tags);
} else {
messageNode = impl.createTextNode(messageText);
}
scanner.setEnd(range, match.index + match[0].length);
scanner.sink(range, true);
if (!Rewriter.checkRangeEndpoints(range)) throw new Error('aborting suspicious range');
codes.push([range, key, messageNode]);
} catch (e) {
console.warn(e);
}
}
return codes;
};
Rewriter.repaceCodes = function (impl, codes) {
for (var i = 0; i < codes.length; i++) {
var range = codes[i][0];
var key = codes[i][1];
var messageNode = codes[i][2];
// caveat: this doesn't work in <title>
var span = impl.createElement('span');
span.shadowcryptReplaced = true;
range.surroundContents(span);
var shadowRoot = span.createShadowRoot();
shadowRoot.applyAuthorStyles = true;
shadowRoot.resetStyleInheritance = false;
var highlight = impl.createElement('span');
highlight.style.backgroundColor = Rewriter.HIGHLIGHT_COLORS[key.color];
highlight.appendChild(messageNode);
shadowRoot.appendChild(highlight);
Content.deleteProp(span, 'shadowRoot');
// we'll need to prevent olderShadowRoot when it gets implemented
}
};
Rewriter.rewriteMarkup = function (impl, node) {
var codes = Rewriter.findCodes(impl, node);
if (codes) Rewriter.repaceCodes(impl, codes);
};
Rewriter.replacer = function (code, fingerprint, tags, data) {
try {
return Codec.decode(fingerprint, tags, data);
} catch (e) {
console.warn(e);
return code;
}
};
Rewriter.processString = function (str) {
return str.replace(Codec.CODE_PATTERN, Rewriter.replacer);
};
var Widgets = {
WIDGET_SELECTOR: 'input,textarea,[contenteditable],iframe',
rules: null,
adapters: {}
};
Widgets.AbstractAdapter = function (e) {
this.node = e;
};
Widgets.Encrypted = function (e, o) {
Widgets.AbstractAdapter.call(this, e);
if ('mode' in o) {
if (o.mode in Tags.modes) {
this.mode = Tags.modes[o.mode];
} else {
console.error('mode %s is not defined (%s)', o.mode, e);
}
}
if ('off' in o) {
this.fingerprint = null;
}
};
Widgets.Encrypted.prototype = Object.create(Widgets.AbstractAdapter.prototype);
Widgets.Encrypted.prototype.constructor = Widgets.Encrypted;
Widgets.Encrypted.prototype.mode = Tags.modes.links;
Widgets.Encrypted.prototype.fingerprint = null;
Widgets.Encrypted.prototype.encrypt = function (s) {
if (this.fingerprint === null) return s;
return Codec.encode(this.mode, this.fingerprint, s);
};
Widgets.Encrypted.prototype.decrypt = function (s) {
return Rewriter.processString(s);
};
Widgets.Encrypted.prototype.refreshEncryption = function () {
// abstract
};
Widgets.Encrypted.prototype.setFingerprint = function (fingerprint) {
this.fingerprint = fingerprint;
this.refreshEncryption();
};
Widgets.Encrypted.prototype.setMode = function (mode) {
this.mode = mode;
this.refreshEncryption();
};
Widgets.Delegated = function (e, o) {
Widgets.Encrypted.call(this, e, o);
var impl = this.node.ownerDocument;
this.shadowContent = impl.createDocumentFragment();
this.delegate = impl.createElement(this.delegateTagName);
this.node.addEventListener('focus', this.onFocus.bind(this));
};
Widgets.Delegated.prototype = Object.create(Widgets.Encrypted.prototype);
Widgets.Delegated.prototype.constructor = Widgets.Delegated;
// a bug prevents <textarea> from being a shadow host, so allow something else to be
Widgets.Delegated.prototype.getShadowHost = function () {
return this.node;
};
Widgets.Delegated.prototype.getCleartext = function () {
return this.delegate.value;
};
Widgets.Delegated.prototype.sideloadCleartext = function (v) {
this.delegate.value = v;
this.refreshEncryption();
};
Widgets.Delegated.prototype.synthesizeChange = function () {
this.node.dispatchEvent(new Event('input'));
this.node.dispatchEvent(new Event('change'));
};
Widgets.Delegated.prototype.applyHostStyles = function (dst, src) {
switch (src.display) {
case 'inline':
case 'inline-block':
case 'inline-table':
case 'inline-grid':
dst.display = 'inline-flex';
break;
case 'block':
case 'table':
case 'grid':
dst.display = 'flex';
break;
case 'none':
dst.display = 'none';
break;
}
switch (src.position) {
case 'static':
dst.position = 'relative';
break;
}
};
Widgets.Delegated.prototype.activateDelegate = function () {
var impl = this.node.ownerDocument;
var hadFocus = impl.activeElement === this.node;
var style = impl.defaultView.getComputedStyle(this.node);
var shadowHost = this.getShadowHost();
shadowHost.shadowcryptInputEarly = this.onInputEarly.bind(this);
shadowHost.shadowcryptHandlePrivateEvent = this.handlePrivateEvent.bind(this);
this.applyHostStyles(shadowHost.style, style);
var shadowRoot = shadowHost.createShadowRoot();
Content.deleteProp(shadowHost, 'shadowRoot');
shadowRoot.applyAuthorStyles = false;
shadowRoot.resetStyleInheritance = false;
shadowRoot.appendChild(this.shadowContent);
this.shadowContent = null;
if (hadFocus) this.delegate.focus();
};
Widgets.Delegated.prototype.onFocus = function (e) {
this.delegate.focus();
};
Widgets.Delegated.prototype.onInputEarly = function (e) {
this.refreshEncryption();
};
Widgets.Delegated.prototype.handlePrivateEvent = function (e) {
if (e.type === 'keydown') {
if (e.keyCode == 32 && e.ctrlKey) { // Ctrl+Space
if (this.fingerprint === null) {
this.setFingerprint(Widgets.Encrypted.prototype.fingerprint);
} else {
this.setFingerprint(null);
}
this.synthesizeChange();
e.preventDefault();
return true;
} else if (e.keyCode == 192 && e.ctrlKey) { // Ctrl+Backtick
if (this.fingerprint !== null) {
var key = Crypto.keys[this.fingerprint];
var clear = window.prompt(key.passphrase, this.getCleartext());
if (clear !== null) {
this.sideloadCleartext(clear);
this.synthesizeChange();
}
e.preventDefault();
}
return true;
}
}
return true;
};
Widgets.KeyChanger = function (e, o) {
Widgets.Delegated.call(this, e, o);
if (!Widgets.KeyChanger.initialized) Widgets.KeyChanger.init();
var impl = this.node.ownerDocument;
var style = impl.createElement('style');
style.textContent = Widgets.KeyChanger.css;
this.shadowContent.appendChild(style);
this.wrapper = Widgets.KeyChanger.appendDiv(impl, this.shadowContent, 'wrapper');
this.delegate.className = 'delegate';
this.wrapper.appendChild(this.delegate);
this.ui = Widgets.KeyChanger.appendDiv(impl, this.wrapper, 'ui');
var modal = Widgets.KeyChanger.appendDiv(impl, this.ui, 'ui-modal');
modal.addEventListener('click', this.clickModal.bind(this));
var background = Widgets.KeyChanger.appendDiv(impl, this.ui, 'ui-background');
var labelWrapper = Widgets.KeyChanger.appendDiv(impl, this.ui, 'label-wrapper');
this.label = Widgets.KeyChanger.appendDiv(impl, labelWrapper, 'label');
var ring = Widgets.KeyChanger.appendDiv(impl, this.ui, 'ring');
var lock = Widgets.KeyChanger.appendDiv(impl, this.ui, 'lock');
lock.addEventListener('click', this.clickLock.bind(this));
this.keyCount = 0;
this.keyElements = [];
this.keyNameElements = [];
for (var fingerprint in Crypto.keys) {
var key = Crypto.keys[fingerprint];
var keyWrapper = Widgets.KeyChanger.appendDiv(impl, ring, 'key-wrapper unlocked');
var keyNameElement = Widgets.KeyChanger.appendDiv(impl, keyWrapper, 'key-name color-' + key.color);
keyNameElement.textContent = key.name;
this.keyNameElements.push(keyNameElement);
var keyElement = Widgets.KeyChanger.appendDiv(impl, keyWrapper, 'key color-' + key.color);
keyElement.style.transform = 'rotate(150deg)';
this.keyElements.push(keyElement);
keyWrapper.addEventListener('mouseenter', this.enterKeyWrapper.bind(this, this.keyCount, fingerprint));
keyWrapper.addEventListener('mouseleave', this.leaveKeyWrapper.bind(this, this.keyCount, fingerprint));
keyWrapper.addEventListener('click', this.clickKeyWrapper.bind(this, this.keyCount, fingerprint));
this.keyCount++;
}
this.keySpacing = Math.max(10, 50 - 5 * this.keyCount);
this.extraSpacing = Math.max(0, 30 - this.keySpacing);
var keyRange = (this.keyCount - 1) * this.keySpacing;
this.keyOffsetStart = -0.5 * keyRange;
this.keyNamesStart = 22 + this.keyOffsetStart;
this.positionKeyNames();
var unlock = Widgets.KeyChanger.appendDiv(impl, ring, 'key-name unlock');
unlock.textContent = 'Unlock';
unlock.addEventListener('click', this.clickUnlock.bind(this));
this.keySelectionVisible = false;
this.refreshState();
};
Widgets.KeyChanger.prototype = Object.create(Widgets.Delegated.prototype);
Widgets.KeyChanger.prototype.constructor = Widgets.KeyChanger;
Widgets.KeyChanger.initialized = false;
Widgets.KeyChanger.css = null;
Widgets.KeyChanger.appendDiv = function (impl, container, className) {
var div = impl.createElement('div');
div.className = className;
container.appendChild(div);
return div;
};
Widgets.KeyChanger.init = function (impl) {
Widgets.KeyChanger.css =
'.wrapper{display:flex;flex:auto;}\r\n' +
'.delegate{display:block;flex:auto;margin:0;border:medium none;padding:0;background:transparent;font:inherit;color:inherit;outline:1px solid transparent;outline-offset:0;resize:none;}\r\n' +
'.delegate:focus{outline-width:2px;}\r\n' +
'.ui{position:absolute;bottom:0.625em;right:20px;}\r\n' +
'.key-ui.ui{z-index:1;}\r\n' +
'.ui-background{position:absolute;width:600px;height:600px;left:-300px;top:-300px;background-image:radial-gradient(closest-side,white 0%,rgba(255,255,255,0.3) 50%,rgba(255,255,255,0) 100%);transition:all ease-in-out 0.2s 0s;opacity:0;visibility:hidden;}\r\n' +
'.key-ui .ui-background{opacity:1;visibility:visible;}\r\n' +
'.ui-modal{position:fixed;top:0;left:0;bottom:0;right:0;background-color:white;transition:all ease-in-out 0.2s 0s;opacity:0;visibility:hidden;}\r\n' +
'.key-ui .ui-modal{opacity:0.5;visibility:visible;}\r\n' +
'.label-wrapper{position:absolute;top:12px;transition:all ease-in-out 0.2s 0s;opacity:0;visibility:hidden;}\r\n' +
'.ui:hover .label-wrapper{opacity:1;visibility:visible;}\r\n' +
'.ui.key-ui .label-wrapper{opacity:0;visibility:hidden;}\r\n' +
'.label{position:relative;left:-50%;border:1px solid #cccccc;padding:3px;background-color:white;font:10px sans-serif;white-space:nowrap;}\r\n' +
'.wrapper.unlocked .label{display:none;}\r\n' +
'.ring{position:absolute;left:-34px;top:-34px;border:2px solid #999999;border-radius:64px;width:64px;height:64px;transition:all ease-in-out 0.2s 0s;transform-origin:50% 50%;transform:scale(0,0);opacity:0;}\r\n' +
'.key-ui .ring{transform:scale(1,1);opacity:1;}\r\n' +
'.key{width:40px;height:25px;background-image:url(' + chrome.extension.getURL('Spritesheet-01.png') + ');}\r\n' +
'.ring .key{position:absolute;left:55px;top:20px;transition:all ease-in-out 0.2s 0s;transform-origin:-23px 50%;cursor:pointer;}\r\n' +
'.key-name{position:absolute;padding:3px;font:500 10px sans-serif;white-space:nowrap;cursor:pointer;transition:all ease-in-out 0.2s 0s;opacity:0.8;}\r\n' +
'.key-wrapper:hover .key-name,.key-name.unlock:hover{opacity:1;transform:scale(1.2,1.2);}\r\n' +
'.key-name.unlock{top:75px;left:12px;color:dimgray;}\r\n' +
'.lock{position:absolute;bottom:-20px;left:-20px;width:40px;height:40px;background:-160px -120px url(' + chrome.extension.getURL('Spritesheet-01.png') + ');cursor:pointer;}\r\n' +
'.lock:hover,.key-ui .lock{opacity:1;}\r\n' +
'\r\n' +
'.key.color-1{background-position:0 -25px;}\r\n' +
'.key.color-2{background-position:0 -50px;}\r\n' +
'.key.color-3{background-position:0 -75px;}\r\n' +
'.key.color-4{background-position:0 -100px;}\r\n' +
'.key.color-5{background-position:0 -125px;}\r\n' +
'.key.color-6{background-position:0 -150px;}\r\n' +
'.wrapper.locked-color-0 .lock{background-position:-120px 0;}\r\n' +
'.wrapper.locked-color-1 .lock{background-position:-120px -40px;}\r\n' +
'.wrapper.locked-color-2 .lock{background-position:-120px -80px;}\r\n' +
'.wrapper.locked-color-3 .lock{background-position:-120px -120px;}\r\n' +
'.wrapper.locked-color-4 .lock{background-position:-160px 0;}\r\n' +
'.wrapper.locked-color-5 .lock{background-position:-160px -40px;}\r\n' +
'.wrapper.locked-color-6 .lock{background-position:-160px -80px;}\r\n' +
'.wrapper.locked-color-0 .label,.key-name.color-0{color:#339999;}\r\n' +
'.wrapper.locked-color-1 .label,.key-name.color-1{color:#336699;}\r\n' +
'.wrapper.locked-color-2 .label,.key-name.color-2{color:#666699;}\r\n' +
'.wrapper.locked-color-3 .label,.key-name.color-3{color:#ad4977;}\r\n' +
'.wrapper.locked-color-4 .label,.key-name.color-4{color:#d1ae4a;}\r\n' +
'.wrapper.locked-color-5 .label,.key-name.color-5{color:#996633;}\r\n' +
'.wrapper.locked-color-6 .label,.key-name.color-6{color:#666666;}\r\n' +
'.wrapper.locked-color-0 .delegate{outline-color:#339999;}\r\n' +
'.wrapper.locked-color-1 .delegate{outline-color:#336699;}\r\n' +
'.wrapper.locked-color-2 .delegate{outline-color:#666699;}\r\n' +
'.wrapper.locked-color-3 .delegate{outline-color:#ad4977;}\r\n' +
'.wrapper.locked-color-4 .delegate{outline-color:#d1ae4a;}\r\n' +
'.wrapper.locked-color-5 .delegate{outline-color:#996633;}\r\n' +
'.wrapper.locked-color-6 .delegate{outline-color:#666666;}\r\n' /* +
'.wrapper.locked-color-0 .delegate:focus{box-shadow:inset 0 0 5px #339999;}\r\n' +
'.wrapper.locked-color-1 .delegate:focus{box-shadow:inset 0 0 5px #336699;}\r\n' +
'.wrapper.locked-color-2 .delegate:focus{box-shadow:inset 0 0 5px #666699;}\r\n' +
'.wrapper.locked-color-3 .delegate:focus{box-shadow:inset 0 0 5px #ad4977;}\r\n' +
'.wrapper.locked-color-4 .delegate:focus{box-shadow:inset 0 0 5px #d1ae4a;}\r\n' +
'.wrapper.locked-color-5 .delegate:focus{box-shadow:inset 0 0 5px #996633;}\r\n' +
'.wrapper.locked-color-6 .delegate:focus{box-shadow:inset 0 0 5px #666666;}\r\n' */;
};
Widgets.KeyChanger.prototype.refreshState = function () {
if (this.fingerprint === null) {
this.wrapper.className = 'wrapper unlocked';
this.label.textContent = '';
} else {
var key = Crypto.keys[this.fingerprint];
this.wrapper.className = 'wrapper locked-color-' + key.color;
this.label.textContent = key.name + ': ' + key.passphrase;
}
};
Widgets.KeyChanger.prototype.setFingerprint = function (fingerprint) {
Widgets.Encrypted.prototype.setFingerprint.call(this, fingerprint);
this.refreshState();
};
Widgets.KeyChanger.prototype.positionKeyNames = function () {
for (var i = 0; i < this.keyCount; i++) {
var top = this.keyNamesStart + this.keySpacing * i;
var rotation = (this.keyOffsetStart + i * this.keySpacing) / 180 * Math.PI;
var left = 40 * Math.cos(rotation) + 60;
this.keyNameElements[i].style.top = top + 'px';
this.keyNameElements[i].style.left = left + 'px';
}
};
Widgets.KeyChanger.prototype.rotateKeys = function (option) {
for (var i = 0; i < this.keyCount; i++) {
var rotation;
if (option === 'collapsed') {
rotation = 150;
} else {
rotation = this.keyOffsetStart + this.keySpacing * i;
if (option !== 'uniform') {
if (i < option) rotation -= this.extraSpacing;
else if (i > option) rotation += this.extraSpacing;
}
}
this.keyElements[i].style.transform = 'rotate(' + rotation + 'deg)';
}
};
Widgets.KeyChanger.prototype.hideKeySelection = function () {
this.ui.classList.remove('key-ui');
this.rotateKeys('collapsed');
this.keySelectionVisible = false;
};
Widgets.KeyChanger.prototype.showKeySelection = function () {
this.ui.classList.add('key-ui');
this.rotateKeys('uniform');
this.keySelectionVisible = true;
};
Widgets.KeyChanger.prototype.clickModal = function (e) {
this.hideKeySelection();
e.stopPropagation();
e.preventDefault();
};
Widgets.KeyChanger.prototype.clickLock = function (e) {
if (this.keySelectionVisible) this.hideKeySelection();
else this.showKeySelection();
e.stopPropagation();
e.preventDefault();
};
Widgets.KeyChanger.prototype.enterKeyWrapper = function (i, fingerprint, e) {
if (this.keySelectionVisible) this.rotateKeys(i);
};
Widgets.KeyChanger.prototype.leaveKeyWrapper = function (i, fingerprint, e) {
if (this.keySelectionVisible) this.rotateKeys('uniform');
};
Widgets.KeyChanger.prototype.clickKeyWrapper = function (i, fingerprint, e) {
this.setFingerprint(fingerprint);
this.hideKeySelection();
e.stopPropagation();
e.preventDefault();
};
Widgets.KeyChanger.prototype.clickUnlock = function (e) {
this.setFingerprint(null);
this.hideKeySelection();
e.stopPropagation();
e.preventDefault();
};
Widgets.adapters.Input = function (e, o) {
Widgets.KeyChanger.call(this, e, o);
this.setValue = Content.shimProp(this.node, 'value', this.node.value, this.onValueSet.bind(this));
this.delegate.value = this.decrypt(this.node.value);
this.delegate.addEventListener('change', this.onChange.bind(this), true);
this.activateDelegate();
};
Widgets.adapters.Input.prototype = Object.create(Widgets.KeyChanger.prototype);
Widgets.adapters.Input.prototype.constructor = Widgets.adapters.Input;
Widgets.adapters.Input.prototype.delegateTagName = 'input';
Widgets.adapters.Input.prototype.refreshEncryption = function () {
var plain = this.delegate.value;
var cipher = this.encrypt(plain);
this.node.value = cipher;
this.setValue(cipher);
};
Widgets.adapters.Input.prototype.onValueSet = function (v) {
var cipher = v;
var plain = this.decrypt(cipher);
this.node.value = cipher;
this.delegate.value = plain;
};
Widgets.adapters.Input.prototype.onChange = function (e) {
var event = new Event('change');
this.node.dispatchEvent(event);
};
Widgets.adapters.Input.prototype.handlePrivateEvent = function (e) {
if (e.keyCode === 13) {
if (!e.defaultPrevented && this.node.form) {
if (e.type === 'keydown') {
var event = new Event('submit');
this.node.form.dispatchEvent(event);
// caveat: doesn't take into account form* attributes
this.node.form.submit();
}
}
return false;
}
return Widgets.Delegated.prototype.handlePrivateEvent.call(this, e);
};
Widgets.adapters.TextArea = function (e, o) {
Widgets.KeyChanger.call(this, e, o);
this.setValue = Content.shimProp(this.node, 'value', this.node.value, this.onValueSet.bind(this));
this.delegate.value = this.decrypt(this.node.value);
this.delegate.addEventListener('change', this.onChange.bind(this));
this.activateDelegate();
};
Widgets.adapters.TextArea.prototype = Object.create(Widgets.KeyChanger.prototype);
Widgets.adapters.TextArea.prototype.constructor = Widgets.adapters.TextArea;
Widgets.adapters.TextArea.simpleStyles = [
'visibility',
'top',
'left',
'bottom',
'right',
'float',
'clear',
'zIndex',
'boxSizing',
'margin',
'border',
'padding',
'boxShadow',
'width',
'height',
'background',
'font',
'color'
];
Widgets.adapters.TextArea.prototype.delegateTagName = 'textarea';
Widgets.adapters.TextArea.prototype.getShadowHost = function () {
var impl = this.node.ownerDocument;