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const { overrideAccessors } = require("./utils"); | ||
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function createAttributeRewriter(ctx) { | ||
if (ctx.serviceWorker) return () => null; | ||
const { | ||
HTMLMediaElement, | ||
HTMLScriptElement, | ||
HTMLAudioElement, | ||
HTMLVideoElement, | ||
HTMLInputElement, | ||
HTMLEmbedElement, | ||
HTMLTrackElement, | ||
HTMLAnchorElement, | ||
HTMLIFrameElement, | ||
HTMLAreaElement, | ||
HTMLLinkElement, | ||
HTMLBaseElement, | ||
HTMLFormElement, | ||
HTMLImageElement, | ||
HTMLSourceElement, | ||
} = ctx.window; | ||
function rewriteAttribute(elem, attr, handler) { | ||
if (Array.isArray(elem)) { | ||
elem.forEach(elem => rewriteAttribute(elem, attr, handler)); | ||
return true; | ||
}; | ||
if (!elem.prototype || !elem.prototype.hasOwnProperty(attr)) return; | ||
const proto = elem.prototype; | ||
overrideAccessors(proto, attr, { | ||
getter: (target, that) => { | ||
const val = target.call(that); | ||
switch(handler) { | ||
case 'url': | ||
return ctx.url.unwrap(val, ctx.meta); | ||
case 'srcset': | ||
return ctx.html.unsrcset(val, ctx.meta); | ||
case 'delete': | ||
return ctx.originalFn.elementGetAttribute.call(that, `corrosion-attr`) || ''; | ||
default: | ||
return val; | ||
}; | ||
}, | ||
setter: (target, that, [ val ]) => { | ||
switch(handler) { | ||
case 'url': | ||
return target.call(that, ctx.url.wrap(val, ctx.meta)); | ||
case 'srcset': | ||
return target.call(that, ctx.html.srcset(val, ctx.meta)); | ||
case 'delete': | ||
ctx.originalFn.elementSetAttribute.call(that, `corrosion-attr`, val); | ||
return val; | ||
default: | ||
return target.call(that, val); | ||
}; | ||
}, | ||
}); | ||
return true; | ||
}; | ||
return function rewriteAttributes() { | ||
rewriteAttribute([ HTMLScriptElement, HTMLMediaElement, HTMLImageElement, HTMLAudioElement, HTMLVideoElement, HTMLInputElement, HTMLEmbedElement, HTMLIFrameElement, HTMLTrackElement, HTMLSourceElement ], 'src', 'url'); | ||
rewriteAttribute(HTMLFormElement, 'action', 'url'); | ||
rewriteAttribute([ HTMLAnchorElement, HTMLAreaElement, HTMLLinkElement, HTMLBaseElement ], 'href', 'url'); | ||
rewriteAttribute([ HTMLImageElement, HTMLSourceElement ], 'srcset', 'srcset'); | ||
rewriteAttribute(HTMLScriptElement, 'integrity', 'delete'); | ||
return true; | ||
}; | ||
}; | ||
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module.exports = createAttributeRewriter; |
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const { overrideAccessors, overrideFunction, overrideConstructor } = require("./utils"); | ||
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function createDomRewriter(ctx) { | ||
if (ctx.serviceWorker) return () => null; | ||
if (ctx.window.Node && ctx.window.Node.prototype) { | ||
ctx.originalAccessors.nodeBaseURI = Object.getOwnPropertyDescriptor(ctx.window.Node.prototype, 'baseURI'); | ||
ctx.originalAccessors.nodeTextContent = Object.getOwnPropertyDescriptor(ctx.window.Node.prototype, 'textContent'); | ||
}; | ||
if (ctx.window.Element && ctx.window.Element.prototype) { | ||
ctx.originalAccessors.elementInnerHtml = Object.getOwnPropertyDescriptor(ctx.window.Element.prototype, 'innerHTML'); | ||
ctx.originalAccessors.elementOuterHtml = Object.getOwnPropertyDescriptor(ctx.window.Element.prototype, 'outerHTML'); | ||
ctx.originalFn.elementSetAttribute = ctx.window.Element.prototype.setAttribute; | ||
ctx.originalFn.elementGetAttribute = ctx.window.Element.prototype.getAttribute; | ||
ctx.originalFn.elementHasAttribute = ctx.window.Element.prototype.hasAttribute; | ||
}; | ||
if (ctx.window.Audio) ctx.originalFn.Audio = ctx.window.Audio; | ||
function rewriteTextContent() { | ||
if (ctx.originalAccessors.nodeTextContent) { | ||
overrideAccessors(ctx.window.Node.prototype, 'textContent', { | ||
setter: (target, that, [ val ]) => { | ||
switch(that.tagName) { | ||
case 'SCRIPT': | ||
val = ctx.processScript(val); | ||
break; | ||
case 'STYLE': | ||
val = ctx.processStyle(val); | ||
break; | ||
}; | ||
return target.call(that, val); | ||
}, | ||
}); | ||
}; | ||
}; | ||
function rewriteUrl() { | ||
if (ctx.originalAccessors.nodeBaseURI) { | ||
overrideAccessors(ctx.window.Node.prototype, 'baseURI', { | ||
getter: (target, that) => { | ||
const url = target.call(that); | ||
return url.startsWith(ctx.meta.origin) ? ctx.url.unwrap(url, ctx.meta) : url; | ||
}, | ||
}); | ||
}; | ||
}; | ||
function rewriteHtml() { | ||
if (ctx.originalAccessors.elementInnerHtml) { | ||
overrideAccessors(ctx.window.Element.prototype, 'innerHTML', { | ||
getter: (target, that) => ['STYLE', 'SCRIPT'].includes(that.tagName) ? target.call(that) : ctx.html.source(target.call(that)), | ||
setter: (target, that, [ val ]) => { | ||
switch(that.tagName) { | ||
case 'STYLE': | ||
val = ctx.processStyle(val); | ||
break; | ||
case 'SCRIPT': | ||
val = ctx.processScript(val); | ||
break; | ||
default: | ||
val = ctx.processHtml(val); | ||
break; | ||
}; | ||
return target.call(that, val); | ||
}, | ||
}); | ||
}; | ||
}; | ||
function rewriteAttribute() { | ||
if (ctx.originalFn.elementSetAttribute) { | ||
overrideFunction(ctx.window.Element.prototype, 'setAttribute', (target, that, args) => { | ||
if (args[0] && args[1]) { | ||
let data = { | ||
attr: { | ||
name: args[0], | ||
value: args[1], | ||
}, | ||
node: that, | ||
meta: ctx.meta, | ||
setAttribute: ctx.originalFn.elementSetAttribute.bind(that), | ||
delete: false, | ||
ctx, | ||
}; | ||
const tag = ctx.html.attrs.get(that.tagName.toLowerCase()) || ctx.html.attrs.get('*'); | ||
if (tag[data.attr.name]) tag[data.attr.name](that, data); | ||
args[0] = data.attr.name; | ||
args[1] = data.attr.value; | ||
}; | ||
return target.apply(that, args); | ||
}); | ||
}; | ||
if (ctx.originalFn.elementGetAttribute) { | ||
overrideFunction(ctx.window.Element.prototype, 'getAttribute', (target, that, args) => { | ||
if (args[0] && ctx.originalFn.elementHasAttribute.call(that, `corrosion-attr-${args[0]}`)) args[0] = `corrosion-attr-${args[0]}`; | ||
return target.apply(that, args); | ||
}); | ||
}; | ||
}; | ||
function rewriteAudio() { | ||
if (ctx.originalFn.Audio) { | ||
overrideConstructor(ctx.window, 'Audio', (target, args) => { | ||
if (args[0]) args[0] = ctx.url.wrap(args[0], ctx.meta); | ||
return new target(...args); | ||
}); | ||
}; | ||
}; | ||
return function rewriteDom() { | ||
rewriteUrl(); | ||
rewriteTextContent(); | ||
rewriteHtml(); | ||
rewriteAttribute(); | ||
rewriteAudio(); | ||
return true; | ||
}; | ||
}; | ||
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module.exports = createDomRewriter; |
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const { overrideFunction, overrideAccessors, overrideConstructor, wrapFnString } = require("./utils"); | ||
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function createFunctionRewriter(ctx) { | ||
if (ctx.window.Function && ctx.window.Function.prototype) { | ||
ctx.originalFn.Function = ctx.window.Function; | ||
ctx.originalFn.FunctionToString = ctx.window.Function.prototype.toString; | ||
ctx.originalAccessors.FunctionArguments = Object.getOwnPropertyDescriptor(ctx.window.Function.prototype, 'arguments'); | ||
}; | ||
function rewriteFn() { | ||
if (ctx.originalFn.Function) { | ||
//const fnProto = ctx.window.Function.prototype; | ||
/*overrideFunction(ctx.window, 'Function', (target, that, args) => { | ||
if (args.length) args[args.length - 1] = ctx.js.process(args[args.length - 1], ctx.meta.url); | ||
return target.apply(that, args); | ||
});*/ | ||
/*ctx.window.Function = new Proxy(ctx.window.Function, { | ||
apply: (target, that, args) => { | ||
if (args.length) args[args.length - 1] = ctx.processScript(args[args.length - 1]); | ||
return target.apply(that, args); | ||
}, | ||
construct: (target, args) => { | ||
if (args.length) args[args.length - 1] = ctx.processScript(args[args.length - 1]); | ||
return new target(...args); | ||
}, | ||
get: (target, prop) => target[prop], | ||
set: (target, prop, val) => target[prop] = val, | ||
});*/ | ||
/* | ||
ctx.window.Function = function(...args) { | ||
if (args.length) args[args.length - 1] = ctx.processScript(args[args.length - 1]); | ||
return new ctx.originalFn.Function(...args); | ||
}; | ||
ctx.window.Function.prototype = ctx.originalFn.Function.prototype; | ||
ctx.window.Function.prototype.constructor = ctx.window.Function; | ||
wrapFnString(ctx.originalFn.Function, ctx.window.Function); | ||
*/ | ||
overrideConstructor(ctx.window, 'Function', (target, args) => { | ||
const old = args[args.length - 1]; | ||
if (args.length) args[args.length - 1] = ctx.processScript(args[args.length - 1]); | ||
console.log(old, args[args.length - 1]); | ||
return target.apply(this, args); | ||
}); | ||
}; | ||
return true; | ||
}; | ||
function rewriteFnArguments() { | ||
if (ctx.originalAccessors.FunctionArguments) { | ||
overrideAccessors(ctx.window.Function.prototype, 'arguments', { | ||
getter: (target, that) => target.call(ctx.proxyToOriginal(that)), | ||
}); | ||
}; | ||
return true; | ||
}; | ||
function rewriteFnString() { | ||
if (ctx.originalFn.FunctionToString) { | ||
overrideFunction(ctx.window.Function.prototype, 'toString', (target, that, args) => { | ||
if (that.hasOwnProperty('$corrosion_string')) return that.$corrosion_string; | ||
return target.apply(that, args); | ||
}); | ||
}; | ||
return true; | ||
}; | ||
return function rewriteFunction() { | ||
rewriteFnString(); | ||
rewriteFn(); | ||
//rewriteFnArguments(); | ||
}; | ||
}; | ||
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module.exports = createFunctionRewriter; |
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@@ -1,26 +1,30 @@ | ||
const { overrideFunction } = require("./utils"); | ||
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function createHistoryRewriter(ctx) { | ||
if (ctx.serviceWorker) return () => null; | ||
if (ctx.window.History && ctx.window.History.prototype) { | ||
ctx.originalFn.historyPushstate = ctx.window.History.prototype.pushState; | ||
ctx.originalFn.historyReplacestate = ctx.window.History.prototype.replaceState; | ||
}; | ||
function rewritePushReplaceState() { | ||
const handler = (target, that, args) => { | ||
if (args[2]) { | ||
/*if (new URL(args[2], ctx.meta.base).origin != ctx.location.origin) { | ||
args[2] = ''; | ||
} else {*/ | ||
args[2] = ctx.url.wrap(args[2], ctx.meta); | ||
//}; | ||
}; | ||
return target.apply(that, args); | ||
} | ||
if (ctx.originalFn.historyPushstate) overrideFunction(ctx.window.History.prototype, 'pushState', handler); | ||
if (ctx.originalFn.historyReplacestate) overrideFunction(ctx.window.History.prototype, 'replaceState', handler); | ||
return true; | ||
}; | ||
return function rewriteHistory() { | ||
if (ctx.serviceWorker) return; | ||
if (ctx.window.History.prototype.pushState) { | ||
ctx.window.History.prototype.pushState = new Proxy(ctx.window.History.prototype.pushState, { | ||
apply: (target, that, args) => { | ||
if (args[2]) args[2] = ctx.url.wrap(args[2], ctx.meta); | ||
const ret = Reflect.apply(target, that, args); | ||
ctx.updateLocation(); | ||
return ret; | ||
}, | ||
}); | ||
}; | ||
if (ctx.window.History.prototype.replaceState) { | ||
ctx.window.History.prototype.replaceState = new Proxy(ctx.window.History.prototype.replaceState, { | ||
apply: (target, that, args) => { | ||
if (args[2]) args[2] = ctx.url.wrap(args[2], ctx.meta); | ||
const ret = Reflect.apply(target, that, args); | ||
ctx.updateLocation(); | ||
return ret; | ||
}, | ||
}); | ||
}; | ||
rewritePushReplaceState(); | ||
return true; | ||
}; | ||
}; | ||
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module.exports = createHistoryRewriter; |
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