modified create dialog to display torrent infos detected from files

2015-02-21 03:01:47 +01:00
parent af9a8eb81b
commit ebc7da1d05
5 changed files with 270 additions and 37 deletions
--- a/static/js/create.js
+++ b/static/js/create.js
@ -2,34 +2,13 @@ window.onload = function () {
 	$('.dropdown li > a').click(function(e){
 		setDropdownButtonText(this.innerHTML, this.parentElement.parentElement.parentElement) //set the display-text to the selected value
 		fillDropdownByValue(this.innerHTML, $(".dropdown")["1"])
+		this.parentElement.parentElement.parentElement.classList.remove("open");
+		return false;
 	});
 	
 	customizeUploadButton()
 }

-//function fillDropdownByValue(value, dropdownToFill) {
-//	dropdownToFill.getElementsByClassName("text")[0].innerHTML = "Subcategory"
-//	var dropdownToFillUl = dropdownToFill.getElementsByClassName("dropdown-menu")[0]
-//	dropdownToFillUl.innerHTML = ""
-//
-//	subCategory = getDescriptorByLocalString("english", value)
-//	catList = document.getElementById("subcategory_list")
-//	catList.innerHTML = ""
-//	categories = global_categories[subCategory].sort()
-//	for(var key in categories) {
-//		var newEntry = document.createElement("li")
-//		var newEntryLink = document.createElement("a")
-//		newEntry.setAttribute("role", "presentation")
-//		newEntryLink.setAttribute("role", "menuitem")
-//		newEntryLink.tabIndex = -1
-//		newEntryLink.href = "#"
-//		newEntryLink.innerHTML = getLocalString("english", categories[key])
-//		newEntryLink.onclick = function(){ setDropdownButtonText(this.innerHTML, this.parentElement.parentElement.parentElement) }
-//		newEntry.appendChild(newEntryLink)
-//		dropdownToFillUl.appendChild(newEntry)
-//	}
-//}
-
 function setDropdownButtonText(text, dropdownButton) {
 	var dropdownTextSpan = dropdownButton.getElementsByClassName("text")[0]
 	dropdownTextSpan.innerHTML = text
@ -44,6 +23,40 @@ function sortCategories(categories) {
 	return sortedCategories
 }

+function fillDetectedFilelist(file) {
+	var reader = new FileReader();
+	fileList = document.querySelectorAll(".detectedFiles ul")[0]
+	fileList.innerHTML = ""
+	reader.onload = function() {
+		b = new bencode()
+		torrentObject = b.decode(reader.result)
+		for(var fileIndex = 0; fileIndex < torrentObject.info.files.length; fileIndex++){
+			newListElement = document.createElement("li")
+			newListElement.innerHTML = torrentObject.info.files[fileIndex].path[0]
+			fileList.appendChild(newListElement)
+		}
+
+		document.querySelectorAll("input.name")[0].value = torrentObject.info.name
+
+		sizeGroup = document.querySelectorAll(".sizeGroup")[0]
+		if(torrentObject.info.pieces.length && torrentObject.info["piece length"]){
+			sizeGroup.style.display = ""
+			document.querySelectorAll(".detectedSize")[0].innerHTML = ((Math.round((torrentObject.info.pieces.length / 20) * torrentObject.info["piece length"]) / 1024 / 1024 * 100) / 100) + " MB"
+		} else {
+			sizeGroup.style.display = "none"
+		}
+
+		trackerGroup = document.querySelectorAll(".trackerGroup")[0]
+		if(torrentObject.announce){
+			trackerGroup.style.display = ""
+			document.querySelectorAll(".detectedTracker")[0].innerHTML = torrentObject.announce
+		} else {
+			trackerGroup.style.display = "none"
+		}
+	}
+	reader.readAsArrayBuffer(file)
+}
+
 // Fill a defined dropdown with values.
 // These values will be generated out of the categories.json
 function fillDropdownByValue(value, dropdownToFill) {
@ -63,7 +76,11 @@ function fillDropdownByValue(value, dropdownToFill) {
 		newEntryLink.tabIndex = -1
 		newEntryLink.href = "#"
 		newEntryLink.innerHTML = subcategoryLocalString
-		newEntryLink.onclick = function(){ setDropdownButtonText(this.innerHTML, this.parentElement.parentElement.parentElement) }
+		newEntryLink.onclick = function(e){
+			setDropdownButtonText(this.innerHTML, this.parentElement.parentElement.parentElement)
+			this.parentElement.parentElement.parentElement.classList.remove("open");
+			return false;
+		}
 		newEntry.appendChild(newEntryLink)
 		dropdownToFillUl.appendChild(newEntry)
 	}
@ -85,6 +102,7 @@ function setButtonToFilename(event) {
 		targetInput = event["target"]
 		button = targetInput.previousSibling.getElementsByClassName("text")[0]
 		button.innerHTML = chunk(fileName, 40)
+		fillDetectedFilelist(this.files[0])
 	});
 }

@ -162,3 +180,171 @@ function chunk(string, n) {
 	}
 	return ret
 };
+
+
+// Bencode Library 
+// Copyright 2014 Steven Goodwin
+// Released under the GPL, version 2
+
+// For format details, please see:
+// http://en.wikipedia.org/wiki/Bencode
+
+bencode = function() {
+	this.STATE_NULL = 0;
+	this.STATE_INTEGER = 1;				// i-?[0-9]e
+	this.STATE_STRING_LENGTH = 2;		// [0-9]+:\a+
+	this.STATE_STRING_CONTENT = 3;		// [0-9]+:\a+
+	this.STATE_LIST = 4;				// l<contents>e
+	this.STATE_DICTIONARY = 5;			// d<contents>e
+}
+
+// Parse accepts an array of characters to process, and the index of the
+// first character to parse.
+// It returns an object containing the parsed result (in result.o), and the index
+// of the next character to parse in result.idx
+bencode.prototype.parse = function(dataArray, fromIndex) {
+	var length = dataArray.byteLength;
+	var idx = fromIndex;
+	var state = this.STATE_NULL;
+
+	// State data
+	var current = "";
+	var currentObject = null;;
+	// String-specific state data
+	var stringLength;
+	
+	while(idx < length) {
+		var c = String.fromCharCode(dataArray[idx]) ;
+		
+		switch(state) {
+			case this.STATE_NULL:
+					switch(c) {
+						case 'i':
+								state = this.STATE_INTEGER;
+								current = "";
+								break;
+						case '0':
+						case '1':
+						case '2':
+						case '3':
+						case '4':
+						case '5':
+						case '6':
+						case '7':
+						case '8':
+						case '9':
+								state = this.STATE_STRING_LENGTH;
+								current = c;
+								break;
+						case 'l':
+								currentObject = new Array();
+								state = this.STATE_LIST;
+								break;
+								
+						case 'd':
+								currentObject = new Object();
+								state = this.STATE_DICTIONARY;
+								break;
+
+						default:
+								return null;
+						}
+					//
+					++idx;
+					break;
+					
+			case this.STATE_INTEGER:	
+					switch(c) {
+						case '-':	// we assume that negative numbers start with -
+								current = "-";
+								break;
+						case 'e':
+								return { o : current, idx : idx+1 };
+						case '0':
+						case '1':
+						case '2':
+						case '3':
+						case '4':
+						case '5':
+						case '6':
+						case '7':
+						case '8':
+						case '9':
+								current += c;
+								break;
+					}
+					++idx;
+					break;
+					
+			case this.STATE_STRING_LENGTH:	
+					switch(c) {
+						case ':':	// the separator between length and content
+								stringLength = parseInt(current, 10);
+								state = this.STATE_STRING_CONTENT;
+								current = "";		// We now parse the string content
+								break;
+						case '0':
+						case '1':
+						case '2':
+						case '3':
+						case '4':
+						case '5':
+						case '6':
+						case '7':
+						case '8':
+						case '9':
+								current += c;
+								break;
+						default:
+								return null;
+						
+					}
+					++idx;
+					break;
+					
+				case this.STATE_STRING_CONTENT:
+					current += c;
+					if (--stringLength == 0) {
+						return { o : current, idx : idx+1 };
+					}
+
+					++idx;
+					break;
+											
+				case this.STATE_DICTIONARY:
+					
+					if (c == 'e') {
+						return { o : currentObject, idx : idx+1 };
+					} else {
+						var objKey = this.parse(dataArray, idx);
+						var objValue = this.parse(dataArray, objKey.idx);
+						
+						currentObject[objKey.o] = objValue.o;
+						idx = objValue.idx;
+					}
+					break;
+					
+				case this.STATE_LIST:
+					
+					if (c == 'e') {
+						return { o : currentObject, idx : idx+1 };
+					} else {
+						var obj = this.parse(dataArray, idx);
+						
+						currentObject.push(obj.o);
+						idx = obj.idx;
+					}
+					break;
+				
+		}
+	}
+	
+	return null;
+}
+
+bencode.prototype.decode = function(byteArray) {
+	var dataArray = new Uint8Array(byteArray);
+	var result = this.parse(dataArray, 0);
+	
+	return result.o;
+}