initial

.gitignore

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+**.project
+**.classpath
+**.settings
+**/target/
+**/bin
+target

build.bat

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+@echo off
+rem http://homemedia.sbs/quicksearch.xpi
+mkdir target
+cd src
+jar -cf ..\target\checksum-verifier.xpi *.*
+cd ..
+
+copy target\checksum-verifier.xpi \\Alpha\Tomcat\andromeda2.sbs\ROOT\ 
+
+rmdir /s /q target
+
+echo Done.

src/chrome.manifest

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+content	checksum-verifier	chrome/content/
+overlay	chrome://browser/content/browser.xul	chrome://checksum-verifier/content/checksum.xul

src/chrome/content/checksum.js

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+var ChecksumExtension = {
+
+	log : function(str) {
+		Components.classes['@mozilla.org/consoleservice;1'].getService(
+				Components.interfaces.nsIConsoleService).logStringMessage(str);
+	},
+
+	onLoad : function() {
+		Components.classes["@mozilla.org/observer-service;1"].getService(
+				Components.interfaces.nsIObserverService).addObserver(
+				ChecksumExtension.downloadObserver, "dl-done", false);
+	},
+
+	onUnload : function() {
+		window.removeEventListener("load", ChecksumExtension.onLoad, false);
+		Components.classes["@mozilla.org/observer-service;1"].getService(
+				Components.interfaces.nsIObserverService).removeObserver(
+				ChecksumExtension.downloadObserver, "dl-done", false);
+	},
+
+	downloadObserver : {
+		observe : function(aSubject, topic, aData) {
+			ChecksumExtension.log("observe: " + topic);
+			if (topic == "dl-done") {
+				var prompts = Components.classes["@mozilla.org/embedcomp/prompt-service;1"]
+						.getService(Components.interfaces.nsIPromptService);
+				var jsonSubject = window.JSON.stringify(aSubject);
+				var dl = aSubject.nsIDownload;
+
+				var checksumMd5 = this.createChecksum(dl.targetFile,"MD5");
+				var checksumSha1 = this.createChecksum(dl.targetFile,"SHA1");
+//				prompts.alert(window, "Checksums", "MD5: "+checksumMd5+"\nSHA1: "+checksumSha1);
+
+
+				this.findChecksumInDocument(content.document.getElementsByTagName("body"), checksumMd5);
+
+
+			}
+		},
+
+		createChecksum : function(fileToCheck, hashType) {
+			// open input stream
+			var istream = Components.classes["@mozilla.org/network/file-input-stream;1"]
+			.createInstance(Components.interfaces.nsIFileInputStream);
+			istream.init(fileToCheck, -1, 0, 0);
+
+			// hash check
+			var ch = Components.classes["@mozilla.org/security/hash;1"]
+			.createInstance(Components.interfaces.nsICryptoHash);
+			ch.init(ch[hashType]);
+			const PR_UINT32_MAX = 0xffffffff;
+			ch.updateFromStream(istream, PR_UINT32_MAX);
+			var hash = ch.finish(false);
+			var toHexString = function (charCode){ return ("0" + charCode.toString(16)).slice(-2); }
+			var filechecksum = [toHexString(hash.charCodeAt(i)) for (i in hash)].join("");
+			filechecksum = filechecksum.replace(/[^0-9a-f]/ig, '').toLowerCase();
+			return filechecksum;
+
+		},
+
+		findChecksumInDocument : function(elements, checksum) {
+			for (var x = 0; x < elements.length;x++) {
+				var node = elements[x];
+				if (node.nodeType == 3) {
+					if (node.data.indexOf(checksum) != -1) {
+						ChecksumExtension.log("FOUND IT, parent: "+node.parentNode.nodeName);
+						node.parentNode.setAttribute("style","background-color:#00a500");
+						return true;
+					}
+				}
+				else {
+					if (this.findChecksumInDocument(node.childNodes,checksum))
+						return true;
+				}
+			}
+		}
+	}
+};
+
+window.addEventListener("load", ChecksumExtension.onLoad, false);
+window.addEventListener("unload", ChecksumExtension.onUnload, false);
+

src/chrome/content/checksum.xul

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+<?xml version="1.0"?>
+<overlay id="checksum-verifier" 
+         xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
+  <script type="application/x-javascript" src="chrome://checksum-verifier/content/checksum.js"/>
+</overlay>

src/install.rdf

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+<?xml version="1.0" encoding="UTF-8"?><RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:em="http://www.mozilla.org/2004/em-rdf#">
+
+  <Description about="urn:mozilla:install-manifest">
+    <em:id>checksum-verifier@grundid.de</em:id>
+    <em:version>0.1</em:version>
+    <em:type>2</em:type>
+
+
+    <!-- Target Application this extension can install into, 
+         with minimum and maximum supported versions. --> 
+
+    <em:targetApplication>
+      <Description>
+        <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
+        <em:minVersion>1.5</em:minVersion>
+        <em:maxVersion>12.0</em:maxVersion>
+      </Description>
+    </em:targetApplication>
+
+    <!-- Front End MetaData -->
+    <em:name>Checksum verifier</em:name>
+    <em:description>Verifies the checksum of a downloaded file.</em:description>
+    <em:creator>Adrian Stabiszewski</em:creator>
+    <em:homepageURL>http://www.grundid.de</em:homepageURL>
+  <em:optionsURL/><em:aboutURL/><em:iconURL/><em:updateURL/></Description>
+</RDF>