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Code Issues Projects Releases Wiki Activity

Don't load javascript on cloned content by default

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Niklas von Hertzen 2014-09-27 21:20:08 +03:00
commit e6d31ada4a
5 changed files with 40 additions and 30 deletions
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29
dist/html2canvas.js vendored
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@ -580,12 +580,13 @@ window.html2canvas = function(nodeList, options) {
options.async = typeof(options.async) === "undefined" ? true : options.async; options.async = typeof(options.async) === "undefined" ? true : options.async;
options.allowTaint = typeof(options.allowTaint) === "undefined" ? false : options.allowTaint; options.allowTaint = typeof(options.allowTaint) === "undefined" ? false : options.allowTaint;
options.removeContainer = typeof(options.removeContainer) === "undefined" ? true : options.removeContainer; options.removeContainer = typeof(options.removeContainer) === "undefined" ? true : options.removeContainer;
options.javascriptEnabled = typeof(options.javascriptEnabled) === "undefined" ? false : options.javascriptEnabled;
if (typeof(nodeList) === "string") { if (typeof(nodeList) === "string") {
if (typeof(options.proxy) !== "string") { if (typeof(options.proxy) !== "string") {
return Promise.reject("Proxy must be used when rendering url"); return Promise.reject("Proxy must be used when rendering url");
} }
return loadUrlDocument(absoluteUrl(nodeList), options.proxy, document, window.innerWidth, window.innerHeight).then(function(container) { return loadUrlDocument(absoluteUrl(nodeList), options.proxy, document, window.innerWidth, window.innerHeight, options).then(function(container) {
return renderWindow(container.contentWindow.document.documentElement, container, options, window.innerWidth, window.innerHeight); return renderWindow(container.contentWindow.document.documentElement, container, options, window.innerWidth, window.innerHeight);
}); });
} }
@ -627,12 +628,16 @@ function renderWindow(node, container, options, windowWidth, windowHeight) {
return parser.ready.then(function() { return parser.ready.then(function() {
log("Finished rendering"); log("Finished rendering");
var canvas = (options.type !== "view" && (node === clonedWindow.document.body || node === clonedWindow.document.documentElement)) ? renderer.canvas : crop(renderer.canvas, bounds); var canvas = (options.type !== "view" && (node === clonedWindow.document.body || node === clonedWindow.document.documentElement)) ? renderer.canvas : crop(renderer.canvas, bounds);
cleanupContainer(container, options);
return canvas;
});
}
function cleanupContainer(container, options) {
if (options.removeContainer) { if (options.removeContainer) {
container.parentNode.removeChild(container); container.parentNode.removeChild(container);
log("Cleaned up container"); log("Cleaned up container");
} }
return canvas;
});
} }
function crop(canvas, bounds) { function crop(canvas, bounds) {
@ -698,16 +703,16 @@ function createWindowClone(ownerDocument, containerDocument, width, height, opti
documentClone.write("<!DOCTYPE html>"); documentClone.write("<!DOCTYPE html>");
documentClone.close(); documentClone.close();
documentClone.replaceChild(removeScriptNodes(documentClone.adoptNode(documentElement)), documentClone.documentElement); documentClone.replaceChild(options.javascriptEnabled === true ? documentClone.adoptNode(documentElement) : removeScriptNodes(documentClone.adoptNode(documentElement)), documentClone.documentElement);
if (options.type === "view") { if (options.type === "view") {
container.contentWindow.scrollTo(window.pageXOffset, window.pageYOffset); container.contentWindow.scrollTo(window.pageXOffset, window.pageYOffset);
} }
}); });
} }
function loadUrlDocument(src, proxy, document, width, height) { function loadUrlDocument(src, proxy, document, width, height, options) {
return new Proxy(src, proxy, window.document).then(documentFromHTML(src)).then(function(doc) { return new Proxy(src, proxy, window.document).then(documentFromHTML(src)).then(function(doc) {
return createWindowClone(doc, document, width, height, {}); return createWindowClone(doc, document, width, height, options);
}); });
} }
@ -852,12 +857,12 @@ FontMetrics.prototype.getMetrics = function(family, size) {
return this.data[family + "-" + size]; return this.data[family + "-" + size];
}; };
function FrameContainer(container, sameOrigin, proxy) { function FrameContainer(container, sameOrigin, options) {
this.image = null; this.image = null;
this.src = container; this.src = container;
var self = this; var self = this;
var bounds = getBounds(container); var bounds = getBounds(container);
this.promise = (!sameOrigin ? this.proxyLoad(proxy, bounds) : new Promise(function(resolve) { this.promise = (!sameOrigin ? this.proxyLoad(options.proxy, bounds, options) : new Promise(function(resolve) {
if (container.contentWindow.document.URL === "about:blank" || container.contentWindow.document.documentElement == null) { if (container.contentWindow.document.URL === "about:blank" || container.contentWindow.document.documentElement == null) {
container.contentWindow.onload = container.onload = function() { container.contentWindow.onload = container.onload = function() {
resolve(container); resolve(container);
@ -866,15 +871,15 @@ function FrameContainer(container, sameOrigin, proxy) {
resolve(container); resolve(container);
} }
})).then(function(container) { })).then(function(container) {
return html2canvas(container.contentWindow.document.documentElement, {type: 'view', proxy: proxy}); return html2canvas(container.contentWindow.document.documentElement, {type: 'view', proxy: options.proxy, javascriptEnabled: options.javascriptEnabled, removeContainer: options.removeContainer});
}).then(function(canvas) { }).then(function(canvas) {
return self.image = canvas; return self.image = canvas;
}); });
} }
FrameContainer.prototype.proxyLoad = function(proxy, bounds) { FrameContainer.prototype.proxyLoad = function(proxy, bounds, options) {
var container = this.src; var container = this.src;
return loadUrlDocument(container.src, proxy, container.ownerDocument, bounds.width, bounds.height); return loadUrlDocument(container.src, proxy, container.ownerDocument, bounds.width, bounds.height, options);
}; };
function GradientContainer(imageData) { function GradientContainer(imageData) {
@ -982,7 +987,7 @@ ImageLoader.prototype.loadImage = function(imageData) {
} else if (imageData.method === "svg") { } else if (imageData.method === "svg") {
return new SVGNodeContainer(imageData.args[0], this.support.svg); return new SVGNodeContainer(imageData.args[0], this.support.svg);
} else if (imageData.method === "IFRAME") { } else if (imageData.method === "IFRAME") {
return new FrameContainer(imageData.args[0], this.isSameOrigin(imageData.args[0].src), this.options.proxy); return new FrameContainer(imageData.args[0], this.isSameOrigin(imageData.args[0].src), this.options);
} else { } else {
return new DummyImageContainer(imageData); return new DummyImageContainer(imageData);
} }

4
dist/html2canvas.min.js vendored
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File diff suppressed because one or more lines are too long

17
src/core.js
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@ -12,12 +12,13 @@ window.html2canvas = function(nodeList, options) {
options.async = typeof(options.async) === "undefined" ? true : options.async; options.async = typeof(options.async) === "undefined" ? true : options.async;
options.allowTaint = typeof(options.allowTaint) === "undefined" ? false : options.allowTaint; options.allowTaint = typeof(options.allowTaint) === "undefined" ? false : options.allowTaint;
options.removeContainer = typeof(options.removeContainer) === "undefined" ? true : options.removeContainer; options.removeContainer = typeof(options.removeContainer) === "undefined" ? true : options.removeContainer;
options.javascriptEnabled = typeof(options.javascriptEnabled) === "undefined" ? false : options.javascriptEnabled;
if (typeof(nodeList) === "string") { if (typeof(nodeList) === "string") {
if (typeof(options.proxy) !== "string") { if (typeof(options.proxy) !== "string") {
return Promise.reject("Proxy must be used when rendering url"); return Promise.reject("Proxy must be used when rendering url");
} }
return loadUrlDocument(absoluteUrl(nodeList), options.proxy, document, window.innerWidth, window.innerHeight).then(function(container) { return loadUrlDocument(absoluteUrl(nodeList), options.proxy, document, window.innerWidth, window.innerHeight, options).then(function(container) {
return renderWindow(container.contentWindow.document.documentElement, container, options, window.innerWidth, window.innerHeight); return renderWindow(container.contentWindow.document.documentElement, container, options, window.innerWidth, window.innerHeight);
}); });
} }
@ -59,12 +60,16 @@ function renderWindow(node, container, options, windowWidth, windowHeight) {
return parser.ready.then(function() { return parser.ready.then(function() {
log("Finished rendering"); log("Finished rendering");
var canvas = (options.type !== "view" && (node === clonedWindow.document.body || node === clonedWindow.document.documentElement)) ? renderer.canvas : crop(renderer.canvas, bounds); var canvas = (options.type !== "view" && (node === clonedWindow.document.body || node === clonedWindow.document.documentElement)) ? renderer.canvas : crop(renderer.canvas, bounds);
cleanupContainer(container, options);
return canvas;
});
}
function cleanupContainer(container, options) {
if (options.removeContainer) { if (options.removeContainer) {
container.parentNode.removeChild(container); container.parentNode.removeChild(container);
log("Cleaned up container"); log("Cleaned up container");
} }
return canvas;
});
} }
function crop(canvas, bounds) { function crop(canvas, bounds) {
@ -130,16 +135,16 @@ function createWindowClone(ownerDocument, containerDocument, width, height, opti
documentClone.write("<!DOCTYPE html>"); documentClone.write("<!DOCTYPE html>");
documentClone.close(); documentClone.close();
documentClone.replaceChild(removeScriptNodes(documentClone.adoptNode(documentElement)), documentClone.documentElement); documentClone.replaceChild(options.javascriptEnabled === true ? documentClone.adoptNode(documentElement) : removeScriptNodes(documentClone.adoptNode(documentElement)), documentClone.documentElement);
if (options.type === "view") { if (options.type === "view") {
container.contentWindow.scrollTo(window.pageXOffset, window.pageYOffset); container.contentWindow.scrollTo(window.pageXOffset, window.pageYOffset);
} }
}); });
} }
function loadUrlDocument(src, proxy, document, width, height) { function loadUrlDocument(src, proxy, document, width, height, options) {
return new Proxy(src, proxy, window.document).then(documentFromHTML(src)).then(function(doc) { return new Proxy(src, proxy, window.document).then(documentFromHTML(src)).then(function(doc) {
return createWindowClone(doc, document, width, height, {}); return createWindowClone(doc, document, width, height, options);
}); });
} }

10
src/framecontainer.js
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@ -1,9 +1,9 @@
function FrameContainer(container, sameOrigin, proxy) { function FrameContainer(container, sameOrigin, options) {
this.image = null; this.image = null;
this.src = container; this.src = container;
var self = this; var self = this;
var bounds = getBounds(container); var bounds = getBounds(container);
this.promise = (!sameOrigin ? this.proxyLoad(proxy, bounds) : new Promise(function(resolve) { this.promise = (!sameOrigin ? this.proxyLoad(options.proxy, bounds, options) : new Promise(function(resolve) {
if (container.contentWindow.document.URL === "about:blank" || container.contentWindow.document.documentElement == null) { if (container.contentWindow.document.URL === "about:blank" || container.contentWindow.document.documentElement == null) {
container.contentWindow.onload = container.onload = function() { container.contentWindow.onload = container.onload = function() {
resolve(container); resolve(container);
@ -12,13 +12,13 @@ function FrameContainer(container, sameOrigin, proxy) {
resolve(container); resolve(container);
} }
})).then(function(container) { })).then(function(container) {
return html2canvas(container.contentWindow.document.documentElement, {type: 'view', proxy: proxy}); return html2canvas(container.contentWindow.document.documentElement, {type: 'view', proxy: options.proxy, javascriptEnabled: options.javascriptEnabled, removeContainer: options.removeContainer});
}).then(function(canvas) { }).then(function(canvas) {
return self.image = canvas; return self.image = canvas;
}); });
} }
FrameContainer.prototype.proxyLoad = function(proxy, bounds) { FrameContainer.prototype.proxyLoad = function(proxy, bounds, options) {
var container = this.src; var container = this.src;
return loadUrlDocument(container.src, proxy, container.ownerDocument, bounds.width, bounds.height); return loadUrlDocument(container.src, proxy, container.ownerDocument, bounds.width, bounds.height, options);
}; };

2
src/imageloader.js
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@ -69,7 +69,7 @@ ImageLoader.prototype.loadImage = function(imageData) {
} else if (imageData.method === "svg") { } else if (imageData.method === "svg") {
return new SVGNodeContainer(imageData.args[0], this.support.svg); return new SVGNodeContainer(imageData.args[0], this.support.svg);
} else if (imageData.method === "IFRAME") { } else if (imageData.method === "IFRAME") {
return new FrameContainer(imageData.args[0], this.isSameOrigin(imageData.args[0].src), this.options.proxy); return new FrameContainer(imageData.args[0], this.isSameOrigin(imageData.args[0].src), this.options);
} else { } else {
return new DummyImageContainer(imageData); return new DummyImageContainer(imageData);
} }