Adding upstream version 4.7.upstream/4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

15 files changed, 1722 insertions, 0 deletions

diff --git a/unused/_mbo16.png b/unused/_mbo16.png
new file mode 100644
index 0000000..a0ecec5
--- /dev/null
+++ b/unused/_mbo16.png
diff --git a/unused/_mbo32.png b/unused/_mbo32.png
new file mode 100644
index 0000000..a08c4b4
--- /dev/null
+++ b/unused/_mbo32.png
diff --git a/unused/_mbo48.png b/unused/_mbo48.png
new file mode 100644
index 0000000..128f729
--- /dev/null
+++ b/unused/_mbo48.png
diff --git a/unused/abUI.js b/unused/abUI.js
new file mode 100644
index 0000000..22008bc
--- /dev/null
+++ b/unused/abUI.js
@@ -0,0 +1,487 @@
+/*
+ * This file is part of DAV-4-TbSync.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. 
+ */
+
+"use strict";
+
+var ui = {
+
+    getUriFromDirectoryId: function(ownerId) {
+        let directories = MailServices.ab.directories;
+        for (let directory of directories) {
+          if (directory instanceof Components.interfaces.nsIAbDirectory) {
+                if (ownerId.startsWith(directory.dirPrefId)) return directory.URI;
+          }
+        }
+        return null;
+    },
+
+
+    //function to get correct uri of current card for global book as well for mailLists
+    getSelectedUri : function(aUri, aCard) {       
+        if (aUri == "moz-abdirectory://?") {
+            //get parent via card owner
+            let ownerId = aCard.directoryId;
+            return dav.ui.getUriFromDirectoryId(ownerId);            
+        } else if (MailServices.ab.getDirectory(aUri).isMailList) {
+            //MailList suck, we have to cut the url to get the parent
+            return aUri.substring(0, aUri.lastIndexOf("/"))     
+        } else {
+            return aUri;
+        }
+    },
+
+
+
+    //* * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+    //* Functions to handle advanced UI elements of AB
+    //* * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+
+    updatePref: function(aDocument, icon, toggle = false) {       
+        if (toggle) {
+            if (icon.parentNode.meta.includes("PREF")) icon.parentNode.meta = icon.parentNode.meta.filter(e => e != "PREF");
+            else icon.parentNode.meta.push("PREF");            
+ 
+            icon.parentNode.updateFunction (aDocument);
+        }
+
+        if (icon.parentNode.meta.includes("PREF")) {
+            icon.setAttribute("src", "chrome://dav4tbsync/content/skin/type.pref.png");
+        } else {
+            icon.setAttribute("src", "chrome://dav4tbsync/content/skin/type.nopref.png");
+        }
+    },
+
+    updateType: function(aDocument, button, newvalue = null) {        
+        if (newvalue) {
+            //we declare allowedValues to be non-overlapping -> remove all allowed values and just add the newvalue
+            button.parentNode.meta = button.parentNode.meta.filter(value => -1 == button.allowedValues.indexOf(value));
+            if (button.allowedValues.includes(newvalue)) {
+                //hardcoded sort order: HOME/WORK always before other types
+                if (["HOME","WORK"].includes(newvalue)) button.parentNode.meta.unshift(newvalue);
+                else button.parentNode.meta.push(newvalue);
+            }
+
+            button.parentNode.updateFunction (aDocument);
+        }
+
+        let intersection = button.parentNode.meta.filter(value => -1 !== button.allowedValues.indexOf(value));
+        let buttonType = (intersection.length > 0) ? intersection[0].toLowerCase() : button.otherIcon;       
+        button.setAttribute("image","chrome://dav4tbsync/content/skin/type."+buttonType+"10.png");
+    },    
+
+    dragdrop: {
+        handleEvent(event) {            
+            //only allow to drag the elements which are valid drag targets
+            if (event.target.getAttribute("dragtarget") != "true") {
+                event.stopPropagation();
+                return;
+            }
+
+            let outerbox = event.currentTarget;
+            let richlistitem = outerbox.parentNode; 
+                        
+            switch (event.type) {
+                case "dragenter":
+                case "dragover":                 
+                    let dropIndex = richlistitem.parentNode.getIndexOfItem(richlistitem);
+                    let dragIndex = richlistitem.parentNode.getIndexOfItem(richlistitem.ownerDocument.getElementById(event.dataTransfer.getData("id")));
+
+                    let centerY = event.currentTarget.clientHeight / 2;
+                    let insertBefore = (event.offsetY < centerY);
+                    let moveNeeded = !(dropIndex == dragIndex || (dropIndex+1 == dragIndex && !insertBefore) || (dropIndex-1 == dragIndex && insertBefore));
+
+                    if (moveNeeded) {
+                        if (insertBefore) {
+                            richlistitem.parentNode.insertBefore(richlistitem.parentNode.getItemAtIndex(dragIndex), richlistitem);
+                        } else {
+                            richlistitem.parentNode.insertBefore(richlistitem.parentNode.getItemAtIndex(dragIndex), richlistitem.nextSibling);
+                        }                        
+                    }
+                    
+                    event.preventDefault();
+                    break;
+                
+                case "drop":
+                    event.preventDefault();
+                case "dragleave":
+                    break;
+                
+                case "dragstart": 
+                    event.currentTarget.style["background-color"] = "#eeeeee"; 
+                    event.dataTransfer.setData("id", richlistitem.id);
+                    break;
+                    
+                case "dragend": 
+                    event.currentTarget.style["background-color"] = "transparent";
+                    outerbox.updateFunction(outerbox.ownerDocument);
+                    break;
+                
+                default: 
+                    return undefined;
+          }
+        },
+    },
+    
+    //* * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+    //* Functions to handle multiple email addresses in AB (UI)
+    //* * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+
+    getNewEmailDetailsRow: function (aWindow, aItemData) {
+        let emailType = "other";
+        if (aItemData.meta.includes("HOME")) emailType = "home";
+        else if (aItemData.meta.includes("WORK")) emailType = "work";            
+
+        //first column
+        let vbox = aWindow.document.createXULElement("vbox");
+        vbox.setAttribute("class","CardViewText");
+        vbox.setAttribute("style","margin-right:1ex; margin-bottom:0px;");
+            let image = aWindow.document.createXULElement("image");
+            image.setAttribute("width","10");
+            image.setAttribute("height","10");
+            image.setAttribute("src", "chrome://dav4tbsync/content/skin/type."+emailType+"10.png");
+        vbox.appendChild(image);
+
+        //second column
+        let description = aWindow.document.createXULElement("description");
+        description.setAttribute("class","plain");
+            let namespace = aWindow.document.lookupNamespaceURI("html");
+            let a = aWindow.document.createElementNS(namespace, "a");
+            a.setAttribute("href", "mailto:" + aItemData.value);    
+            a.textContent = aItemData.value;
+            description.appendChild(a);
+
+            if (aItemData.meta.includes("PREF")) {
+                let pref = aWindow.document.createXULElement("image");
+                pref.setAttribute("style", "margin-left:1ex;");
+                pref.setAttribute("width", "11");
+                pref.setAttribute("height", "10");
+                pref.setAttribute("src", "chrome://dav4tbsync/content/skin/type.nopref.png");
+                description.appendChild(pref);
+            }
+        
+        //row
+        let row = aWindow.document.createElement("tr");
+        let cell1 = aWindow.document.createElement("td");
+        let cell2 = aWindow.document.createElement("td");
+        cell2.setAttribute("width","100%");        
+
+        cell1.appendChild(vbox);
+        cell2.appendChild(description);
+
+        row.appendChild(cell1);
+        row.appendChild(cell2);
+        return row;
+    },
+    
+    getNewEmailListItem: function (aDocument, aItemData) {
+        //hbox
+        let outerhbox = aDocument.createXULElement("hbox");
+        outerhbox.setAttribute("dragtarget", "true");
+        outerhbox.setAttribute("flex", "1");
+        outerhbox.setAttribute("align", "center");
+        outerhbox.setAttribute("style", "padding:0; margin:0");
+        outerhbox.updateFunction = dav.ui.updateEmails;
+        outerhbox.meta =  aItemData.meta;
+
+        outerhbox.addEventListener("dragenter", dav.ui.dragdrop);
+        outerhbox.addEventListener("dragover", dav.ui.dragdrop);
+        outerhbox.addEventListener("dragleave", dav.ui.dragdrop);
+        outerhbox.addEventListener("dragstart", dav.ui.dragdrop);
+        outerhbox.addEventListener("dragend", dav.ui.dragdrop);
+        outerhbox.addEventListener("drop", dav.ui.dragdrop);
+        
+        outerhbox.style["background-image"] = "url('chrome://dav4tbsync/content/skin/dragdrop.png')"; 
+        outerhbox.style["background-position"] = "right";
+        outerhbox.style["background-repeat"] = "no-repeat";
+        
+            //button
+            let button = aDocument.createXULElement("button");
+            button.allowedValues = ["HOME", "WORK"];
+            button.otherIcon = "other";
+            button.setAttribute("type", "menu");
+            button.setAttribute("style", "width: 35px; min-width: 35px; margin: 0; padding:0");
+            button.appendChild(aDocument.getElementById("DavMenuTemplate").children[0].cloneNode(true));
+            outerhbox.appendChild(button);
+
+            //email box
+            let emailbox = aDocument.createXULElement("hbox");
+            emailbox.setAttribute("flex", "1");
+            let email = aDocument.createElement("input");
+            email.setAttribute("style", "width: 240px");
+            email.setAttribute("value", aItemData.value);
+            email.addEventListener("change", function(e) {dav.ui.updateEmails(aDocument)});
+            email.addEventListener("keydown", function(e) {if (e.key == "Enter") {e.stopPropagation(); e.preventDefault(); if (e.target.value != "") { dav.ui.addEmailEntry(e.target.ownerDocument); }}});
+            emailbox.appendChild(email);        
+            outerhbox.appendChild(emailbox);
+        
+            //image
+            let image = aDocument.createXULElement("image");
+            image.setAttribute("width", "11");
+            image.setAttribute("height", "10");
+            image.setAttribute("style", "margin:2px 20px 2px 1ex");
+            image.addEventListener("click", function(e) { dav.ui.updatePref(aDocument, e.target, true); });
+            outerhbox.appendChild(image);
+        
+        //richlistitem
+        let richlistitem = aDocument.createXULElement("richlistitem");
+        richlistitem.setAttribute("id", "entry_" + TbSync.generateUUID());
+        richlistitem.setAttribute("style", "padding:0;margin:0;");
+        richlistitem.appendChild(outerhbox);
+        
+        return richlistitem;
+    },
+    
+    getEmailListItemElement: function(item, element) {
+        switch (element) {
+            case "dataContainer": 
+                return item.children[0];
+            case "button": 
+                return item.children[0].children[0];
+            case "email":
+                return item.children[0].children[1].children[0];
+            case "pref":
+                return item.children[0].children[2];
+            default:
+                return null;
+        }
+    },
+    
+    addEmailEntry: function(aDocument) {
+        let list = aDocument.getElementById("X-DAV-EmailAddressList");
+        let data = {value: "", meta: ["HOME"]};
+        let item = list.appendChild(dav.ui.getNewEmailListItem(aDocument, data));
+        list.ensureElementIsVisible(item);
+
+        dav.ui.updateType(aDocument,  dav.ui.getEmailListItemElement(item, "button"));
+        dav.ui.updatePref(aDocument, dav.ui.getEmailListItemElement(item, "pref"));
+    
+        dav.ui.getEmailListItemElement(item, "email").focus();
+    },
+    
+
+    //if any setting changed, we need to update Primary and Secondary Email Fields
+    updateEmails: function(aDocument) {
+        let list = aDocument.getElementById("X-DAV-EmailAddressList");
+        
+        let emails = [];
+        for (let i=0; i < list.children.length; i++) {
+            let item = list.children[i];
+            let email = dav.ui.getEmailListItemElement(item, "email").value.trim();
+            if (email != "") {
+                let json = {};
+                json.meta = dav.ui.getEmailListItemElement(item, "dataContainer").meta;
+                json.value = email;
+                emails.push(json);
+            } 
+        }
+        aDocument.getElementById("X-DAV-JSON-Emails").value = JSON.stringify(emails);
+        
+        //now update all other TB email fields based on the new JSON data
+        let emailData = dav.tools.getEmailsFromJSON(aDocument.getElementById("X-DAV-JSON-Emails").value);
+        for (let field in emailData) {
+            if (emailData.hasOwnProperty(field)) {
+                aDocument.getElementById(field).value = emailData[field].join(", ");
+            }
+        }        
+    },
+    
+
+
+
+    //* * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+    //* Functions to handle multiple phone numbers in AB (UI)
+    //* * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+
+    getNewPhoneDetailsRow: function (aWindow, aItemData) {
+        let phoneType1 = "";
+        if (aItemData.meta.includes("HOME")) phoneType1 = "home";
+        else if (aItemData.meta.includes("WORK")) phoneType1 = "work";            
+
+        let phoneType2 = "";
+        if (aItemData.meta.includes("CELL")) phoneType2 = "cell";            
+        else if (aItemData.meta.includes("FAX")) phoneType2 = "fax";            
+        else if (aItemData.meta.includes("PAGER")) phoneType2 = "pager";            
+        else if (aItemData.meta.includes("CAR")) phoneType2 = "car";            
+        else if (aItemData.meta.includes("VIDEO")) phoneType2 = "video";            
+        else if (aItemData.meta.includes("VOICE")) phoneType2 = "voice";
+        
+        //first column
+        let vbox = aWindow.document.createXULElement("hbox");
+        vbox.setAttribute("pack","end");
+        vbox.setAttribute("class","CardViewText");
+        vbox.setAttribute("style","margin-bottom:0px;");
+            if (phoneType1) {
+                let image = aWindow.document.createXULElement("image");
+                image.setAttribute("style","margin-right:1ex;");
+                image.setAttribute("width","10");
+                image.setAttribute("height","10");
+                image.setAttribute("src", "chrome://dav4tbsync/content/skin/type."+phoneType1+"10.png");
+                vbox.appendChild(image);
+            }
+            if (phoneType2) {
+                let image = aWindow.document.createXULElement("image");
+                image.setAttribute("style","margin-right:1ex;");
+                image.setAttribute("width","10");
+                image.setAttribute("height","10");
+                image.setAttribute("src", "chrome://dav4tbsync/content/skin/type."+phoneType2+"10.png");
+                vbox.appendChild(image);
+            }
+
+        //second column
+        let description = aWindow.document.createXULElement("description");
+        description.setAttribute("class","plain");
+        description.setAttribute("style","-moz-user-select: text;");
+        description.textContent = aItemData.value;
+
+        if (aItemData.meta.includes("PREF")) {
+            let pref = aWindow.document.createXULElement("image");
+            pref.setAttribute("style", "margin-left:1ex;");
+            pref.setAttribute("width", "11");
+            pref.setAttribute("height", "10");
+            pref.setAttribute("src", "chrome://dav4tbsync/content/skin/type.nopref.png");
+            description.appendChild(pref);
+        }
+        
+        //row
+        let row = aWindow.document.createElement("tr");
+        let cell1 = aWindow.document.createElement("td");
+        let cell2 = aWindow.document.createElement("td");
+        cell2.setAttribute("width","100%");        
+        
+        cell1.appendChild(vbox);
+        cell2.appendChild(description);
+
+        row.appendChild(cell1);
+        row.appendChild(cell2);
+        return row;
+    },
+    
+    getNewPhoneListItem: function (aDocument, aItemData) {
+        //hbox
+        let outerhbox = aDocument.createXULElement("hbox");
+        outerhbox.setAttribute("dragtarget", "true");
+        outerhbox.setAttribute("flex", "1");
+        outerhbox.setAttribute("align", "center");
+        outerhbox.setAttribute("style", "padding:0; margin:0");
+        outerhbox.updateFunction = dav.ui.updatePhoneNumbers;
+        outerhbox.meta = aItemData.meta;
+
+        outerhbox.addEventListener("dragenter", dav.ui.dragdrop);
+        outerhbox.addEventListener("dragover", dav.ui.dragdrop);
+        outerhbox.addEventListener("dragleave", dav.ui.dragdrop);
+        outerhbox.addEventListener("dragstart", dav.ui.dragdrop);
+        outerhbox.addEventListener("dragend", dav.ui.dragdrop);
+        outerhbox.addEventListener("drop", dav.ui.dragdrop);
+        
+        outerhbox.style["background-image"] = "url('chrome://dav4tbsync/content/skin/dragdrop.png')"; 
+        outerhbox.style["background-position"] = "right";
+        outerhbox.style["background-repeat"] = "no-repeat";
+
+            //button1
+            let button1 = aDocument.createXULElement("button");
+            button1.allowedValues = ["HOME", "WORK"];
+            button1.otherIcon = "none";
+            button1.setAttribute("type", "menu");
+            button1.setAttribute("style", "width: 35px; min-width: 35px; margin: 0; padding:0");
+            button1.appendChild(aDocument.getElementById("DavMenuTemplate").children[1].cloneNode(true));
+            outerhbox.appendChild(button1);
+
+            //button2
+            let button2 = aDocument.createXULElement("button");
+            button2.allowedValues = ["CELL", "FAX", "PAGER", "CAR", "VIDEO", "VOICE"] ; //same order as in getNewPhoneDetailsRow
+            button2.otherIcon = "none";
+            button2.setAttribute("type", "menu");
+            button2.setAttribute("class", "plain");
+            button2.setAttribute("style", "width: 35px; min-width: 35px; margin: 0;");
+            button2.appendChild(aDocument.getElementById("DavMenuTemplate").children[2].cloneNode(true));
+            outerhbox.appendChild(button2);
+
+            //phone box
+            let phonebox = aDocument.createXULElement("hbox");
+            phonebox.setAttribute("flex", "1");
+            let phone = aDocument.createElement("input");
+            phone.setAttribute("style", "width: 205px");
+            phone.setAttribute("value", aItemData.value);
+            phone.addEventListener("change", function(e) {dav.ui.updatePhoneNumbers(aDocument)});
+            phone.addEventListener("keydown", function(e) {if (e.key == "Enter") {e.stopPropagation(); e.preventDefault(); if (e.target.value != "") { dav.ui.addPhoneEntry(e.target.ownerDocument); }}});
+            phonebox.appendChild(phone);        
+            outerhbox.appendChild(phonebox);
+        
+            //image
+            let image = aDocument.createXULElement("image");
+            image.setAttribute("width", "11");
+            image.setAttribute("height", "10");
+            image.setAttribute("style", "margin:2px 20px 2px 1ex");
+            image.addEventListener("click", function(e) { dav.ui.updatePref(aDocument, e.target, true); });
+            outerhbox.appendChild(image);
+        
+        //richlistitem
+        let richlistitem = aDocument.createXULElement("richlistitem");
+        richlistitem.setAttribute("id", "entry_" + TbSync.generateUUID());
+        richlistitem.setAttribute("style", "padding:0;margin:0;");
+        richlistitem.appendChild(outerhbox);
+        
+        return richlistitem;
+    },
+    
+    updatePhoneNumbers: function(aDocument) {
+        let list = aDocument.getElementById("X-DAV-PhoneNumberList");
+        
+        let phones = [];
+        for (let i=0; i < list.children.length; i++) {
+            let item = list.children[i];
+            let phone = dav.ui.getPhoneListItemElement(item, "phone").value.trim();
+            if (phone != "") {
+                let json = {};
+                json.meta = dav.ui.getPhoneListItemElement(item, "dataContainer").meta;
+                json.value = phone;
+                phones.push(json);
+            } 
+        }
+        aDocument.getElementById("X-DAV-JSON-Phones").value = JSON.stringify(phones);
+        
+        //now update all other TB number fields based on the new JSON data
+        let phoneData = dav.tools.getPhoneNumbersFromJSON(aDocument.getElementById("X-DAV-JSON-Phones").value);
+        for (let field in phoneData) {
+            if (phoneData.hasOwnProperty(field)) {
+                aDocument.getElementById(field).value = phoneData[field].join(", ");
+            }
+        }        
+    },
+
+    addPhoneEntry: function(aDocument) {
+        let list = aDocument.getElementById("X-DAV-PhoneNumberList");
+        let data = {value: "", meta: ["VOICE"]};
+        let item = list.appendChild(dav.ui.getNewPhoneListItem(aDocument, data));
+        list.ensureElementIsVisible(item);
+
+        dav.ui.updateType(aDocument, dav.ui.getPhoneListItemElement(item, "button1"));
+        dav.ui.updateType(aDocument, dav.ui.getPhoneListItemElement(item, "button2"));
+        dav.ui.updatePref(aDocument, dav.ui.getPhoneListItemElement(item, "pref"));
+    
+        dav.ui.getPhoneListItemElement(item, "phone").focus();
+    },    
+
+    getPhoneListItemElement: function(item, element) {
+        switch (element) {
+            case "dataContainer": 
+                return item.children[0];
+            case "button1": 
+                return item.children[0].children[0];
+            case "button2": 
+                return item.children[0].children[1];
+            case "phone":
+                return item.children[0].children[2].children[0];
+            case "pref":
+                return item.children[0].children[3];
+            default:
+                return null;
+        }
+    },
+
+}
diff --git a/unused/iconfinder_17_939744_16.png b/unused/iconfinder_17_939744_16.png
new file mode 100644
index 0000000..00eab4b
--- /dev/null
+++ b/unused/iconfinder_17_939744_16.png
diff --git a/unused/iconfinder_17_939744_32.png b/unused/iconfinder_17_939744_32.png
new file mode 100644
index 0000000..baacddc
--- /dev/null
+++ b/unused/iconfinder_17_939744_32.png
diff --git a/unused/iconfinder_17_939744_64.png b/unused/iconfinder_17_939744_64.png
new file mode 100644
index 0000000..b6a227b
--- /dev/null
+++ b/unused/iconfinder_17_939744_64.png
diff --git a/unused/iconfinder_Apple_1298725_16.png b/unused/iconfinder_Apple_1298725_16.png
new file mode 100644
index 0000000..fd5fa79
--- /dev/null
+++ b/unused/iconfinder_Apple_1298725_16.png
diff --git a/unused/iconfinder_Apple_1298725_32.png b/unused/iconfinder_Apple_1298725_32.png
new file mode 100644
index 0000000..0815a20
--- /dev/null
+++ b/unused/iconfinder_Apple_1298725_32.png
diff --git a/unused/iconfinder_Apple_1298725_64.png b/unused/iconfinder_Apple_1298725_64.png
new file mode 100644
index 0000000..2d05773
--- /dev/null
+++ b/unused/iconfinder_Apple_1298725_64.png
diff --git a/unused/mbo48_2.png b/unused/mbo48_2.png
new file mode 100644
index 0000000..0379947
--- /dev/null
+++ b/unused/mbo48_2.png
diff --git a/unused/orig_sync.js b/unused/orig_sync.js
new file mode 100644
index 0000000..ac654f8
--- /dev/null
+++ b/unused/orig_sync.js
@@ -0,0 +1,908 @@
+/*
+/*
+ * This file is part of DAV-4-TbSync.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. 
+ */
+
+"use strict";
+
+var sync = {
+
+    finish: function (aStatus = "", msg = "", details = "") {
+        let status = TbSync.StatusData.SUCCESS
+        switch (aStatus) {
+            
+            case "":
+            case "ok":
+                status = TbSync.StatusData.SUCCESS;
+                break;
+            
+            case "info":
+                status = TbSync.StatusData.INFO;
+                break;
+            
+            case "resyncAccount":
+                status = TbSync.StatusData.ACCOUNT_RERUN;
+                break;
+
+            case "resyncFolder":
+                status = TbSync.StatusData.FOLDER_RERUN;
+                break;
+            
+            case "warning":
+                status = TbSync.StatusData.WARNING;
+                break;
+            
+            case "error":
+                status = TbSync.StatusData.ERROR;
+                break;
+
+            default:
+                console.log("TbSync/DAV: Unknown status <"+aStatus+">");
+                status = TbSync.StatusData.ERROR;
+                break;
+        }
+        
+        let e = new Error(); 
+        e.name = "dav4tbsync";
+        e.message = status.toUpperCase() + ": " + msg.toString() + " (" + details.toString() + ")";
+        e.statusData = new TbSync.StatusData(status, msg.toString(), details.toString());        
+        return e; 
+    }, 
+
+    prefSettings: Services.prefs.getBranch("extensions.dav4tbsync."),
+
+    ns: {
+        d: "DAV:",
+        cal: "urn:ietf:params:xml:ns:caldav" ,
+        card: "urn:ietf:params:xml:ns:carddav" ,
+        cs: "http://calendarserver.org/ns/",
+        s: "http://sabredav.org/ns",
+        apple: "http://apple.com/ns/ical/"
+    },
+
+    serviceproviders: {
+        "fruux" : {revision: 1, icon: "fruux", caldav: "https://dav.fruux.com", carddav: "https://dav.fruux.com"},
+        "mbo" : {revision: 1, icon: "mbo", caldav: "caldav6764://mailbox.org", carddav: "carddav6764://mailbox.org"},
+        "icloud" : {revision: 1, icon: "icloud", caldav: "https://caldav.icloud.com", carddav: "https://contacts.icloud.com"},
+        "gmx.net" : {revision: 1, icon: "gmx", caldav: "caldav6764://gmx.net", carddav: "carddav6764://gmx.net"},
+        "gmx.com" : {revision: 1, icon: "gmx", caldav: "caldav6764://gmx.com", carddav: "carddav6764://gmx.com"},
+        "posteo" : {revision: 1, icon: "posteo", caldav: "https://posteo.de:8443", carddav: "posteo.de:8843"},
+        "web.de" : {revision: 1, icon: "web", caldav: "caldav6764://web.de", carddav: "carddav6764://web.de"},
+        "yahoo" : {revision: 1, icon: "yahoo", caldav: "caldav6764://yahoo.com", carddav: "carddav6764://yahoo.com"},
+    },
+
+    onChange(abItem) {
+        if (!this._syncOnChangeTimers)
+            this._syncOnChangeTimers = {};
+            
+        this._syncOnChangeTimers[abItem.abDirectory.UID] = {};
+        this._syncOnChangeTimers[abItem.abDirectory.UID].timer = Components.classes["@mozilla.org/timer;1"].createInstance(Components.interfaces.nsITimer);
+        this._syncOnChangeTimers[abItem.abDirectory.UID].event = {
+            notify: function(timer) {
+                // if account is syncing, re-schedule
+                // if folder got synced after the start time (due to re-scheduling) abort
+                console.log("DONE: "+ abItem.abDirectory.UID);
+            }
+        }
+        
+        this._syncOnChangeTimers[abItem.abDirectory.UID].timer.initWithCallback(
+            this._syncOnChangeTimers[abItem.abDirectory.UID].event, 
+            2000, 
+            Components.interfaces.nsITimer.TYPE_ONE_SHOT);
+    },
+
+    resetFolderSyncInfo : function (folderData) {
+        folderData.resetFolderProperty("ctag");
+        folderData.resetFolderProperty("token");
+        folderData.setFolderProperty("createdWithProviderVersion", folderData.accountData.providerData.getVersion());
+    },
+    
+    folderList: async function (syncData) {
+        //Method description: http://sabre.io/dav/building-a-caldav-client/
+        //get all folders currently known
+        let folderTypes = ["caldav", "carddav", "ics"];
+        let unhandledFolders = {};
+        for (let type of folderTypes) {
+            unhandledFolders[type] = [];
+        }
+
+        
+        let folders = syncData.accountData.getAllFolders();
+        for (let folder of folders) {
+            //just in case
+            if (!unhandledFolders.hasOwnProperty(folder.getFolderProperty("type"))) {
+                unhandledFolders[folder.getFolderProperty("type")] = [];
+            }
+            unhandledFolders[folder.getFolderProperty("type")].push(folder);
+        }
+
+        // refresh urls of service provider, if they have been updated
+        let serviceprovider = syncData.accountData.getAccountProperty("serviceprovider");
+        let serviceproviderRevision = syncData.accountData.getAccountProperty("serviceproviderRevision");
+        if (dav.sync.serviceproviders.hasOwnProperty(serviceprovider) && serviceproviderRevision != dav.sync.serviceproviders[serviceprovider].revision) {            
+            TbSync.eventlog.add("info", syncData.eventLogInfo, "updatingServiceProvider", serviceprovider);
+            syncData.accountData.setAccountProperty("serviceproviderRevision", dav.sync.serviceproviders[serviceprovider].revision);
+            syncData.accountData.resetAccountProperty("calDavPrincipal");
+            syncData.accountData.resetAccountProperty("cardDavPrincipal");
+            syncData.accountData.setAccountProperty("calDavHost", dav.sync.serviceproviders[serviceprovider].caldav);
+            syncData.accountData.setAccountProperty("cardDavHost", dav.sync.serviceproviders[serviceprovider].carddav);
+        }
+
+        let davjobs = {
+            cal : {server: syncData.accountData.getAccountProperty("calDavHost")},
+            card : {server: syncData.accountData.getAccountProperty("cardDavHost")},
+        };
+        
+        for (let job in davjobs) {
+            if (!davjobs[job].server) continue;
+            
+            // SOGo needs some special handling for shared addressbooks. We detect it by having SOGo/dav in the url.
+            let isSogo = davjobs[job].server.includes("/SOGo/dav");
+
+            //sync states are only printed while the account state is "syncing" to inform user about sync process (it is not stored in DB, just in syncData)
+            //example state "getfolders" to get folder information from server
+            //if you send a request to a server and thus have to wait for answer, use a "send." syncstate, which will give visual feedback to the user,
+            //that we are waiting for an answer with timeout countdown
+
+            let home = [];
+            let own = [];
+
+            // migration code for http setting, we might keep it as a fallback, if user removed the http:// scheme from the url in the settings
+            if (!dav.network.startsWithScheme(davjobs[job].server)) {
+                davjobs[job].server = "http" + (syncData.accountData.getAccountProperty("https") ? "s" : "") + "://" + davjobs[job].server;
+                syncData.accountData.setAccountProperty(job + "DavHost", davjobs[job].server);
+            }
+            
+            //add connection to syncData
+            syncData.connectionData = new dav.network.ConnectionData(syncData);
+            
+            //only do that, if a new calendar has been enabled
+            TbSync.network.resetContainerForUser(syncData.connectionData.username);
+
+            syncData.setSyncState("send.getfolders");
+            let principal = syncData.accountData.getAccountProperty(job + "DavPrincipal"); // defaults to null
+            if (principal === null) {
+          
+                let response = await dav.network.sendRequest("<d:propfind "+dav.tools.xmlns(["d"])+"><d:prop><d:current-user-principal /></d:prop></d:propfind>", davjobs[job].server , "PROPFIND", syncData.connectionData, {"Depth": "0", "Prefer": "return=minimal"});
+                syncData.setSyncState("eval.folders");
+
+                // keep track of permanent redirects for the server URL
+                if (response && response.permanentlyRedirectedUrl) {
+                    syncData.accountData.setAccountProperty(job + "DavHost", response.permanentlyRedirectedUrl)
+                }
+
+                // store dav options send by server
+                if (response && response.davOptions) {
+                    syncData.accountData.setAccountProperty(job + "DavOptions", response.davOptions.split(",").map(e => e.trim())); 
+                }
+                
+                // allow 404 because iCloud sends it on valid answer (yeah!)
+                if (response && response.multi) {
+                    principal = dav.tools.getNodeTextContentFromMultiResponse(response, [["d","prop"], ["d","current-user-principal"], ["d","href"]], null, ["200","404"]);
+                }
+            }
+
+            //principal now contains something like "/remote.php/carddav/principals/john.bieling/"
+            //principal can also be an absolute url
+            // -> get home/root of storage
+            if (principal !== null) {
+                syncData.setSyncState("send.getfolders");
+                
+                let options = syncData.accountData.getAccountProperty(job + "DavOptions");
+                
+                let homeset = (job == "cal")
+                                        ? "calendar-home-set"
+                                        : "addressbook-home-set";
+
+                let request = "<d:propfind "+dav.tools.xmlns(["d", job, "cs"])+"><d:prop><"+job+":" + homeset + " />"
+                                            + (job == "cal" && options.includes("calendar-proxy") ? "<cs:calendar-proxy-write-for /><cs:calendar-proxy-read-for />" : "") 
+                                            + "<d:group-membership />"
+                                            + "</d:prop></d:propfind>";
+
+                let response = await dav.network.sendRequest(request, principal, "PROPFIND", syncData.connectionData, {"Depth": "0", "Prefer": "return=minimal"});
+                syncData.setSyncState("eval.folders");
+
+                // keep track of permanent redirects for the principal URL
+                if (response && response.permanentlyRedirectedUrl) {
+                    principal = response.permanentlyRedirectedUrl;
+                }
+                
+                own = dav.tools.getNodesTextContentFromMultiResponse(response, [["d","prop"], [job, homeset ], ["d","href"]], principal);
+                home = own.concat(dav.tools.getNodesTextContentFromMultiResponse(response, [["d","prop"], ["cs", "calendar-proxy-read-for" ], ["d","href"]], principal));
+                home = home.concat(dav.tools.getNodesTextContentFromMultiResponse(response, [["d","prop"], ["cs", "calendar-proxy-write-for" ], ["d","href"]], principal));
+
+                //Any groups we need to find? Only diving one level at the moment, 
+                let g = dav.tools.getNodesTextContentFromMultiResponse(response, [["d","prop"], ["d", "group-membership" ], ["d","href"]], principal);
+                for (let gc=0; gc < g.length; gc++) {
+                    //SOGo reports a 403 if I request the provided resource, also since we do not dive, remove the request for group-membership                    
+                    response = await dav.network.sendRequest(request.replace("<d:group-membership />",""), g[gc], "PROPFIND", syncData.connectionData, {"Depth": "0", "Prefer": "return=minimal"}, {softfail: [403, 404]});
+                    if (response && response.softerror) {
+                        continue;
+                    }		    
+                    home = home.concat(dav.tools.getNodesTextContentFromMultiResponse(response, [["d","prop"], [job, homeset ], ["d","href"]], g[gc]));
+                }
+
+                //calendar-proxy and group-membership could have returned the same values, make the homeset unique
+                home = home.filter((v,i,a) => a.indexOf(v) == i);
+            } else {
+                // do not throw here, but log the error and skip this server
+                TbSync.eventlog.add("error", syncData.eventLogInfo, job+"davservernotfound", davjobs[job].server);
+            }
+
+            //home now contains something like /remote.php/caldav/calendars/john.bieling/
+            // -> get all resources
+            if (home.length > 0) {
+                // the used principal returned valid resources, store/update it
+                // as the principal is being used as a starting point, it must be stored as absolute url
+                syncData.accountData.setAccountProperty(job + "DavPrincipal", dav.network.startsWithScheme(principal) 
+                    ? principal 
+                    : "http" + (syncData.connectionData.https ? "s" : "") + "://" + syncData.connectionData.fqdn + principal);
+
+                for (let h=0; h < home.length; h++) {
+                    syncData.setSyncState("send.getfolders");
+                    let request = (job == "cal")
+                                            ? "<d:propfind "+dav.tools.xmlns(["d","apple","cs"])+"><d:prop><d:current-user-privilege-set/><d:resourcetype /><d:displayname /><apple:calendar-color/><cs:source/></d:prop></d:propfind>"
+                                            : "<d:propfind "+dav.tools.xmlns(["d"])+"><d:prop><d:current-user-privilege-set/><d:resourcetype /><d:displayname /></d:prop></d:propfind>";
+
+                    //some servers report to have calendar-proxy-read but return a 404 when that gets actually queried
+                    let response = await dav.network.sendRequest(request, home[h], "PROPFIND", syncData.connectionData, {"Depth": "1", "Prefer": "return=minimal"}, {softfail: [403, 404]});
+                    if (response && response.softerror) {
+                        continue;
+                    }
+                    
+                    for (let r=0; r < response.multi.length; r++) {
+                        if (response.multi[r].status != "200") continue;
+                        
+                        let resourcetype = null;
+                        //is this a result with a valid recourcetype? (the node must be present)
+                        switch (job) {
+                            case "card": 
+                                    if (dav.tools.evaluateNode(response.multi[r].node, [["d","prop"], ["d","resourcetype"], ["card", "addressbook"]]) !== null) resourcetype = "carddav";
+                                break;
+                                
+                            case "cal":
+                                    if (dav.tools.evaluateNode(response.multi[r].node, [["d","prop"], ["d","resourcetype"], ["cal", "calendar"]]) !== null) resourcetype = "caldav";
+                                    else if (dav.tools.evaluateNode(response.multi[r].node, [["d","prop"], ["d","resourcetype"], ["cs", "subscribed"]]) !== null) resourcetype = "ics";
+                                break;
+                        }
+                        if (resourcetype === null) continue;
+                        
+                        //get ACL (grant read rights per default, if it is SOGo, as they do not send that permission)
+                        let acl = isSogo ? 0x1 : 0;
+
+                        let privilegNode = dav.tools.evaluateNode(response.multi[r].node, [["d","prop"], ["d","current-user-privilege-set"]]);
+                        if (privilegNode) {
+                            if (privilegNode.getElementsByTagNameNS(dav.sync.ns.d, "all").length > 0) { 
+                                acl = 0xF; //read=1, mod=2, create=4, delete=8 
+                            } else {
+                                // check for individual write permissions
+                                if (privilegNode.getElementsByTagNameNS(dav.sync.ns.d, "write").length > 0) {
+                                    acl = 0xF; 
+                                } else {
+                                    if (privilegNode.getElementsByTagNameNS(dav.sync.ns.d, "write-content").length > 0) acl |= 0x2;
+                                    if (privilegNode.getElementsByTagNameNS(dav.sync.ns.d, "bind").length > 0) acl |= 0x4;
+                                    if (privilegNode.getElementsByTagNameNS(dav.sync.ns.d, "unbind").length > 0) acl |= 0x8;
+                                }
+                                
+                                // check for read permission (implying read if any write is given)
+                                if (privilegNode.getElementsByTagNameNS(dav.sync.ns.d, "read").length > 0 || acl != 0) acl |= 0x1;
+                            }
+                        }
+                        
+                        //ignore this resource, if no read access
+                        if ((acl & 0x1) == 0) continue;
+
+                        let href = response.multi[r].href;
+                        if (resourcetype == "ics") href =  dav.tools.evaluateNode(response.multi[r].node, [["d","prop"], ["cs","source"], ["d","href"]]).textContent;
+                        
+                        let name_node = dav.tools.evaluateNode(response.multi[r].node, [["d","prop"], ["d","displayname"]]);
+                        let name = TbSync.getString("defaultname." +  ((job == "cal") ? "calendar" : "contacts") , "dav");
+                        if (name_node != null) {
+                            name = name_node.textContent;
+                        }
+                        let color = dav.tools.evaluateNode(response.multi[r].node, [["d","prop"], ["apple","calendar-color"]]);
+
+                        //remove found folder from list of unhandled folders
+                        unhandledFolders[resourcetype] = unhandledFolders[resourcetype].filter(item => item.getFolderProperty("href") !== href);
+
+                        
+                        // interaction with TbSync
+                        // do we have a folder for that href?
+                        let folderData = syncData.accountData.getFolder("href", href);
+                        if (!folderData) {
+                            // create a new folder entry
+                            folderData = syncData.accountData.createNewFolder();
+                            // this MUST be set to either "addressbook" or "calendar" to use the standard target support, or any other value, which 
+                            // requires a corresponding targets implementation by this provider
+                            folderData.setFolderProperty("targetType", (job == "card") ? "addressbook" : "calendar");
+                            
+                            folderData.setFolderProperty("href", href);
+                            folderData.setFolderProperty("foldername", name);
+                            folderData.setFolderProperty("type", resourcetype);
+                            folderData.setFolderProperty("shared", !own.includes(home[h]));
+                            folderData.setFolderProperty("acl", acl.toString());
+                            folderData.setFolderProperty("downloadonly", (acl == 0x1)); //if any write access is granted, setup as writeable
+
+                            //we assume the folder has the same fqdn as the homeset, otherwise href must contain the full URL and the fqdn is ignored
+                            folderData.setFolderProperty("fqdn", syncData.connectionData.fqdn);
+                            folderData.setFolderProperty("https", syncData.connectionData.https);
+                            
+                            //do we have a cached folder?
+                            let cachedFolderData = syncData.accountData.getFolderFromCache("href", href);
+                            if (cachedFolderData) {
+                                // copy fields from cache which we want to re-use
+                                folderData.setFolderProperty("targetColor", cachedFolderData.getFolderProperty("targetColor"));
+                                folderData.setFolderProperty("targetName", cachedFolderData.getFolderProperty("targetName"));
+                                //if we have only READ access, do not restore cached value for downloadonly
+                                if (acl > 0x1) folderData.setFolderProperty("downloadonly", cachedFolderData.getFolderProperty("downloadonly"));
+                            }
+                        } else {
+                            //Update name & color
+                            folderData.setFolderProperty("foldername", name);
+                            folderData.setFolderProperty("fqdn", syncData.connectionData.fqdn);
+                            folderData.setFolderProperty("https", syncData.connectionData.https);
+                            folderData.setFolderProperty("acl", acl);
+                            //if the acl changed from RW to RO we need to update the downloadonly setting
+                            if (acl == 0x1) {
+                                folderData.setFolderProperty("downloadonly", true);
+                            }
+                        }
+
+                        // Update color from server.
+                        if (color && job == "cal") {
+                            color = color.textContent.substring(0,7);
+                            folderData.setFolderProperty("targetColor", color);
+                            
+                            // Do we have to update the calendar?
+                            if (folderData.targetData && folderData.targetData.hasTarget()) {
+                                try {
+                                    let targetCal = await folderData.targetData.getTarget();
+                                    targetCal.calendar.setProperty("color", color);
+                                } catch (e) {
+                                    Components.utils.reportError(e)
+                                }
+                            }
+                        }
+                    }
+                }
+            } else {
+                //home was not found - connection error? - do not delete unhandled folders
+                switch (job) {
+                    case "card": 
+                            unhandledFolders.carddav = [];
+                        break;
+                        
+                    case "cal":
+                            unhandledFolders.caldav = [];
+                            unhandledFolders.ics = [];
+                        break;
+                }
+                //reset stored principal
+                syncData.accountData.resetAccountProperty(job + "DavPrincipal");
+            }
+        }
+
+        // Remove unhandled old folders, (because they no longer exist on the server).
+        // Do not delete the targets, but keep them as stale/unconnected elements.
+        for (let type of folderTypes) {
+            for (let folder of unhandledFolders[type]) {
+                folder.remove("[deleted on server]");
+            }
+        }
+    },
+
+
+
+
+
+
+    folder: async function (syncData) {
+        // add connection data to syncData
+        syncData.connectionData = new dav.network.ConnectionData(syncData);
+
+        // add target to syncData
+        let hadTarget;
+        try {
+            // accessing the target for the first time will check if it is avail and if not will create it (if possible)
+            hadTarget = syncData.currentFolderData.targetData.hasTarget();
+            syncData.target = await syncData.currentFolderData.targetData.getTarget();
+        } catch (e) {
+            Components.utils.reportError(e);
+            throw dav.sync.finish("warning", e.message);
+        }
+        
+        switch (syncData.currentFolderData.getFolderProperty("type")) {
+            case "carddav":
+                {
+                    await dav.sync.singleFolder(syncData);
+                }
+                break;
+
+            case "caldav":
+            case "ics":
+                {
+                    // update downloadonly - we do not use TbCalendar (syncData.target) but the underlying lightning calendar obj
+                    if (syncData.currentFolderData.getFolderProperty("downloadonly")) syncData.target.calendar.setProperty("readOnly", true);
+                    
+                    // update username of calendar
+                    syncData.target.calendar.setProperty("username", syncData.connectionData.username);
+                    
+                    //init sync via lightning
+                    if (hadTarget) syncData.target.calendar.refresh();
+
+                    throw dav.sync.finish("ok", "managed-by-thunderbird");
+                }
+                break;
+
+            default:
+                {
+                    throw dav.sync.finish("warning", "notsupported");
+                }
+                break;
+        }
+    },
+
+
+    singleFolder: async function (syncData)  {
+        let downloadonly = syncData.currentFolderData.getFolderProperty("downloadonly");
+        
+        // we have to abort sync of this folder, if it is contact, has groupSync enabled and gContactSync is enabled
+        let syncGroups = syncData.accountData.getAccountProperty("syncGroups");
+        let gContactSync = await AddonManager.getAddonByID("gContactSync@pirules.net") ;
+        let contactSync = (syncData.currentFolderData.getFolderProperty("type") == "carddav");
+        if (syncGroups && contactSync && gContactSync && gContactSync.isActive) {
+            throw dav.sync.finish("warning", "gContactSync");
+        }
+        
+        await dav.sync.remoteChanges(syncData);
+        let numOfLocalChanges = await dav.sync.localChanges(syncData);
+
+        //revert all local changes on permission error by doing a clean sync
+        if (numOfLocalChanges < 0) {
+            dav.sync.resetFolderSyncInfo(syncData.currentFolderData);
+            await dav.sync.remoteChanges(syncData);
+
+            if (!downloadonly) throw dav.sync.finish("info", "info.restored");
+        } else if (numOfLocalChanges > 0){
+            //we will get back our own changes and can store etags and vcards and also get a clean ctag/token
+            await dav.sync.remoteChanges(syncData);
+        }
+    },
+
+
+
+
+
+
+
+
+
+
+    remoteChanges: async function (syncData) {
+        //Do we have a sync token? No? -> Initial Sync (or WebDAV sync not supported) / Yes? -> Get updates only (token only present if WebDAV sync is suported)
+        let token = syncData.currentFolderData.getFolderProperty("token");
+        if (token) {
+            //update via token sync
+            let tokenSyncSucceeded = await dav.sync.remoteChangesByTOKEN(syncData);
+            if (tokenSyncSucceeded) return;
+
+            //token sync failed, reset ctag and token and do a full sync
+            dav.sync.resetFolderSyncInfo(syncData.currentFolderData);
+        }
+
+        //Either token sync did not work or there is no token (initial sync)
+        //loop until ctag is the same before and after polling data (sane start condition)
+        let maxloops = 20;
+        for (let i=0; i <= maxloops; i++) {
+                if (i == maxloops)
+                    throw dav.sync.finish("warning", "could-not-get-stable-ctag");
+
+                let ctagChanged = await dav.sync.remoteChangesByCTAG(syncData);
+                if (!ctagChanged) break;
+        }
+    },
+
+    remoteChangesByTOKEN: async function (syncData) {
+        syncData.progressData.reset();
+
+        let token = syncData.currentFolderData.getFolderProperty("token");
+        syncData.setSyncState("send.request.remotechanges");
+        let cards = await dav.network.sendRequest("<d:sync-collection "+dav.tools.xmlns(["d"])+"><d:sync-token>"+token+"</d:sync-token><d:sync-level>1</d:sync-level><d:prop><d:getetag/></d:prop></d:sync-collection>", syncData.currentFolderData.getFolderProperty("href"), "REPORT", syncData.connectionData, {}, {softfail: [415,403,409]});
+        
+        //EteSync throws 409 because it does not support sync-token
+        //Sabre\DAV\Exception\ReportNotSupported - Unsupported media type - returned by fruux if synctoken is 0 (empty book), 415 & 403
+        //https://github.com/sabre-io/dav/issues/1075
+        //Sabre\DAV\Exception\InvalidSyncToken (403)
+        if (cards && cards.softerror) {
+            //token sync failed, reset ctag and do a full sync
+            return false;
+        }
+
+        let tokenNode = dav.tools.evaluateNode(cards.node, [["d", "sync-token"]]);
+        if (tokenNode === null) {
+            //token sync failed, reset ctag and do a full sync
+            return false;
+        }
+
+        let vCardsDeletedOnServer = [];
+        let vCardsChangedOnServer = {};
+        
+        let localDeletes = syncData.target.getDeletedItemsFromChangeLog();
+        
+        let cardsFound = 0;
+        for (let c=0; c < cards.multi.length; c++) {
+            let id = cards.multi[c].href;
+            if (id !==null) {
+                //valid
+                let card = await syncData.target.getItemFromProperty("X-DAV-HREF", id);
+                if (cards.multi[c].status == "200") {
+                    //MOD or ADD
+                    let etag = dav.tools.evaluateNode(cards.multi[c].node, [["d","prop"], ["d","getetag"]]);
+                    if (!card) {
+                        //if the user deleted this card (not yet send to server), do not add it again
+                        if (!localDeletes.includes(id))  { 
+                            cardsFound++;
+                            vCardsChangedOnServer[id] = "ADD"; 
+                        }
+                    } else if (etag.textContent != card.getProperty("X-DAV-ETAG")) {
+                        cardsFound++;
+                        vCardsChangedOnServer[id] = "MOD"; 
+                    }
+                } else if (cards.multi[c].responsestatus == "404" && card) {
+                    //DEL
+                    cardsFound++;
+                    vCardsDeletedOnServer.push(card);
+                } else {
+                    //We received something, that is not a DEL, MOD or ADD
+                    TbSync.eventlog.add("warning", syncData.eventLogInfo, "Unknown XML", JSON.stringify(cards.multi[c]));
+                }
+            }
+        }
+
+        // reset sync process
+        syncData.progressData.reset(0, cardsFound);
+
+        //download all cards added to vCardsChangedOnServer and process changes
+        await dav.sync.multiget(syncData, vCardsChangedOnServer);
+
+        //delete all contacts added to vCardsDeletedOnServer
+        await dav.sync.deleteContacts (syncData, vCardsDeletedOnServer);
+
+        //update token
+        syncData.currentFolderData.setFolderProperty("token", tokenNode.textContent);
+
+        return true;
+    },
+
+    remoteChangesByCTAG: async function (syncData) {
+        syncData.progressData.reset();
+
+        //Request ctag and token
+        syncData.setSyncState("send.request.remotechanges");
+        let response = await dav.network.sendRequest("<d:propfind "+dav.tools.xmlns(["d", "cs"])+"><d:prop><cs:getctag /><d:sync-token /></d:prop></d:propfind>", syncData.currentFolderData.getFolderProperty("href"), "PROPFIND", syncData.connectionData, {"Depth": "0"});
+
+        syncData.setSyncState("eval.response.remotechanges");
+        let ctag = dav.tools.getNodeTextContentFromMultiResponse(response, [["d","prop"], ["cs", "getctag"]], syncData.currentFolderData.getFolderProperty("href"));
+        let token = dav.tools.getNodeTextContentFromMultiResponse(response, [["d","prop"], ["d", "sync-token"]], syncData.currentFolderData.getFolderProperty("href"));
+
+        let localDeletes = syncData.target.getDeletedItemsFromChangeLog();
+
+        //if CTAG changed, we need to sync everything and compare
+        if (ctag === null || ctag != syncData.currentFolderData.getFolderProperty("ctag")) {
+            let vCardsFoundOnServer = [];
+            let vCardsChangedOnServer = {};
+
+            //get etags of all cards on server and find the changed cards
+            syncData.setSyncState("send.request.remotechanges");
+            let cards = await dav.network.sendRequest("<d:propfind "+dav.tools.xmlns(["d"])+"><d:prop><d:getetag /></d:prop></d:propfind>", syncData.currentFolderData.getFolderProperty("href"), "PROPFIND", syncData.connectionData, {"Depth": "1", "Prefer": "return=minimal"});
+            
+            //to test other impl
+            //let cards = await dav.network.sendRequest("<d:propfind "+dav.tools.xmlns(["d"])+"><d:prop><d:getetag /></d:prop></d:propfind>", syncData.currentFolderData.getFolderProperty("href"), "PROPFIND", syncData.connectionData, {"Depth": "1", "Prefer": "return=minimal"}, {softfail: []}, false);
+
+            //this is the same request, but includes getcontenttype, do we need it? icloud send contacts without
+            //let cards = await dav.network.sendRequest("<d:propfind "+dav.tools.xmlns(["d"])+"><d:prop><d:getetag /><d:getcontenttype /></d:prop></d:propfind>", syncData.currentFolderData.getFolderProperty("href"), "PROPFIND", syncData.connectionData, {"Depth": "1", "Prefer": "return=minimal"});
+
+            //play with filters and limits for synology
+            /*
+            let additional = "<card:limit><card:nresults>10</card:nresults></card:limit>";
+            additional += "<card:filter test='anyof'>";
+                additional += "<card:prop-filter name='FN'>";
+                    additional += "<card:text-match negate-condition='yes' match-type='equals'>bogusxy</card:text-match>";
+                additional += "</card:prop-filter>";
+            additional += "</card:filter>";*/
+        
+            //addressbook-query does not work on older servers (zimbra)
+            //let cards = await dav.network.sendRequest("<card:addressbook-query "+dav.tools.xmlns(["d", "card"])+"><d:prop><d:getetag /></d:prop></card:addressbook-query>", syncData.currentFolderData.getFolderProperty("href"), "REPORT", syncData.connectionData, {"Depth": "1", "Prefer": "return=minimal"});
+
+            syncData.setSyncState("eval.response.remotechanges");
+            let cardsFound = 0;
+            for (let c=0; cards.multi && c < cards.multi.length; c++) {
+                let id =  cards.multi[c].href;
+                if (id == syncData.currentFolderData.getFolderProperty("href")) {
+                    //some servers (Radicale) report the folder itself and a querry to that would return everything again
+                    continue;
+                }
+                let etag = dav.tools.evaluateNode(cards.multi[c].node, [["d","prop"], ["d","getetag"]]);
+
+                //ctype is currently not used, because iCloud does not send one and sabre/dav documentation is not checking ctype 
+                //let ctype = dav.tools.evaluateNode(cards.multi[c].node, [["d","prop"], ["d","getcontenttype"]]);
+
+                if (cards.multi[c].status == "200" && etag !== null && id !== null /* && ctype !== null */) { //we do not actually check the content of ctype - but why do we request it? iCloud seems to send cards without ctype
+                    vCardsFoundOnServer.push(id);
+                    let card = await syncData.target.getItemFromProperty("X-DAV-HREF", id);
+                    if (!card) {
+                        //if the user deleted this card (not yet send to server), do not add it again
+                        if (!localDeletes.includes(id)) {
+                            cardsFound++;
+                            vCardsChangedOnServer[id] = "ADD"; 
+                        }
+                    } else if (etag.textContent != card.getProperty("X-DAV-ETAG")) {
+                        cardsFound++;
+                        vCardsChangedOnServer[id] = "MOD"; 
+                    }
+                }
+            }
+
+            //FIND DELETES: loop over current addressbook and check each local card if it still exists on the server
+            let vCardsDeletedOnServer = [];
+            let localAdditions = syncData.target.getAddedItemsFromChangeLog();
+            let allItems = syncData.target.getAllItems()
+            for (let card of allItems) {
+                let id = card.getProperty("X-DAV-HREF");
+                if (id && !vCardsFoundOnServer.includes(id) && !localAdditions.includes(id)) {
+                    //delete request from server
+                    cardsFound++;
+                    vCardsDeletedOnServer.push(card);
+                }
+            }
+
+            // reset sync process
+            syncData.progressData.reset(0, cardsFound);
+
+            //download all cards added to vCardsChangedOnServer and process changes
+            await dav.sync.multiget(syncData, vCardsChangedOnServer);
+
+            //delete all contacts added to vCardsDeletedOnServer
+            await dav.sync.deleteContacts (syncData, vCardsDeletedOnServer);
+
+            //update ctag and token (if there is one)
+            if (ctag === null) return false; //if server does not support ctag, "it did not change"
+            syncData.currentFolderData.setFolderProperty("ctag", ctag);
+            if (token) syncData.currentFolderData.setFolderProperty("token", token);
+
+            //ctag did change
+            return true;
+        } else {
+
+            //ctag did not change
+            return false;
+        }
+
+    },
+
+
+
+    multiget: async function (syncData, vCardsChangedOnServer) {
+        //keep track of found mailing lists and its members
+        syncData.foundMailingListsDuringDownSync = {};
+        
+        //download all changed cards and process changes
+        let cards2catch = Object.keys(vCardsChangedOnServer);
+        let maxitems = dav.sync.prefSettings.getIntPref("maxitems");
+
+        for (let i=0; i < cards2catch.length; i+=maxitems) {
+            let request = dav.tools.getMultiGetRequest(cards2catch.slice(i, i+maxitems));
+            if (request) {
+                syncData.setSyncState("send.request.remotechanges");
+                let cards = await dav.network.sendRequest(request, syncData.currentFolderData.getFolderProperty("href"), "REPORT", syncData.connectionData, {"Depth": "1"});
+
+                syncData.setSyncState("eval.response.remotechanges");
+                for (let c=0; c < cards.multi.length; c++) {
+                    syncData.progressData.inc();
+                    let id =  cards.multi[c].href;
+                    let etag = dav.tools.evaluateNode(cards.multi[c].node, [["d","prop"], ["d","getetag"]]);
+                    let data = dav.tools.evaluateNode(cards.multi[c].node, [["d","prop"], ["card","address-data"]]);
+
+                    if (cards.multi[c].status == "200" && etag !== null && data !== null && id !== null && vCardsChangedOnServer.hasOwnProperty(id)) {
+                        switch (vCardsChangedOnServer[id]) {
+                            case "ADD":
+                                await dav.tools.addContact (syncData, id, data, etag);
+                                break;
+
+                            case "MOD":
+                                await dav.tools.modifyContact (syncData, id, data, etag);
+                                break;
+                        }
+                        //Feedback from users: They want to see the individual count
+                        syncData.setSyncState("eval.response.remotechanges");		
+                        await TbSync.tools.sleep(100);
+                    } else {
+                        TbSync.dump("Skipped Card", [id, cards.multi[c].status == "200", etag !== null, data !== null, id !== null, vCardsChangedOnServer.hasOwnProperty(id)].join(", "));
+                    }
+                }
+            }
+        }
+        // Feedback from users: They want to see the final count.
+        syncData.setSyncState("eval.response.remotechanges");		
+        await TbSync.tools.sleep(200);
+    
+        // On down sync, mailinglists need to be done at the very end so all member data is avail.
+        if (syncData.accountData.getAccountProperty("syncGroups")) {
+            let l=0;
+            for (let listID in syncData.foundMailingListsDuringDownSync) {
+                if (syncData.foundMailingListsDuringDownSync.hasOwnProperty(listID)) {
+                    l++;
+                    
+                    let list = await syncData.target.getItemFromProperty("X-DAV-HREF", listID);
+                    if (!list.isMailList)
+                        continue;
+                                        
+                    //CardInfo contains the name and the X-DAV-UID list of the members
+                    let vCardInfo = dav.tools.getGroupInfoFromCardData(syncData.foundMailingListsDuringDownSync[listID].vCardData, syncData.target);
+                    let oCardInfo = dav.tools.getGroupInfoFromCardData(syncData.foundMailingListsDuringDownSync[listID].oCardData, syncData.target);
+
+                    // Smart merge: oCardInfo contains the state during last sync, vCardInfo is the current state.
+                    // By comparing we can learn, which member was deleted by the server (in old but not in new),
+                    // and which one was added (in new but not in old)
+                    let removedMembers = oCardInfo.members.filter(e => !vCardInfo.members.includes(e));
+                    let newMembers = vCardInfo.members.filter(e => !oCardInfo.members.includes(e));
+
+                    // Check that all new members have an email address (fix for bug 1522453)
+                    let m=0;
+                    for (let member of newMembers) {
+                        let card = await syncData.target.getItemFromProperty("X-DAV-UID", member);
+                        if (card) {
+                            let email = card.getProperty("PrimaryEmail");
+                            if (!email) {
+                                let email = Date.now() + "." + l + "." + m + "@bug1522453";
+                                card.setProperty("PrimaryEmail", email);
+                                syncData.target.modifyItem(card);
+                            }
+                        } else {
+                            TbSync.dump("Member not found: " + member);
+                        }
+                        m++;
+                    }
+                    
+                    // if any of the to-be-removed members are not members of the local list, they are skipt
+                    // if any of the to-be-added members are already members of the local list, they are skipt
+                    list.removeListMembers("X-DAV-UID", removedMembers);
+                    list.addListMembers("X-DAV-UID", newMembers);
+                    syncData.target.modifyItem(list);
+                }
+            }
+        }            
+    },
+
+    deleteContacts: async function (syncData, cards2delete) {
+        let maxitems = dav.sync.prefSettings.getIntPref("maxitems");
+
+        // try to show a progress based on maxitens during delete and not delete all at once
+        for (let i=0; i < cards2delete.length; i+=maxitems) {
+            //get size of next block
+            let remain = (cards2delete.length - i);
+            let chunk = Math.min(remain, maxitems);
+
+            syncData.progressData.inc(chunk);
+            syncData.setSyncState("eval.response.remotechanges");
+            await TbSync.tools.sleep(200); //we want the user to see, that deletes are happening
+
+            for (let j=0; j < chunk; j++) {
+                syncData.target.deleteItem(cards2delete[i+j]);
+            }
+        }
+    },
+
+
+
+
+    localChanges: async function (syncData) {
+        //define how many entries can be send in one request
+        let maxitems = dav.sync.prefSettings.getIntPref("maxitems");
+
+        let downloadonly = syncData.currentFolderData.getFolderProperty("downloadonly");
+
+        let permissionErrors = 0;
+        let permissionError = { //keep track of permission errors - preset with downloadonly status to skip sync in that case
+            "added_by_user": downloadonly, 
+            "modified_by_user": downloadonly, 
+            "deleted_by_user": downloadonly
+        }; 
+        
+        let syncGroups = syncData.accountData.getAccountProperty("syncGroups");
+        
+        //access changelog to get local modifications (done and todo are used for UI to display progress)
+        syncData.progressData.reset(0, syncData.target.getItemsFromChangeLog().length);
+
+        do {
+            syncData.setSyncState("prepare.request.localchanges");
+
+            //get changed items from ChangeLog 
+            let changes = syncData.target.getItemsFromChangeLog(maxitems);
+            if (changes.length == 0)
+                break;
+
+            for (let i=0; i < changes.length; i++) {
+                switch (changes[i].status) {
+                    case "added_by_user":
+                    case "modified_by_user":
+                        {
+                            let isAdding = (changes[i].status == "added_by_user");
+                            if (!permissionError[changes[i].status]) { //if this operation failed already, do not retry
+
+                                let card = await syncData.target.getItem(changes[i].itemId);
+                                if (card) {
+                                    if (card.isMailList && !syncGroups) {                                        
+                                        // Conditionally break out of the switch early, but do
+                                        // execute the cleanup code below the switch. A continue would
+                                        // miss that.
+                                        break;
+                                    }
+                                    
+                                    let vcard = card.isMailList
+                                                        ? dav.tools.getVCardFromThunderbirdListCard(syncData, card, isAdding)
+                                                        : dav.tools.getVCardFromThunderbirdContactCard(syncData, card, isAdding);
+                                    let headers = {"Content-Type": "text/vcard; charset=utf-8"};
+                                    //if (!isAdding) headers["If-Match"] = vcard.etag;
+
+                                    syncData.setSyncState("send.request.localchanges");
+                                    if (isAdding || vcard.modified) {
+                                        let response = await dav.network.sendRequest(vcard.data, card.getProperty("X-DAV-HREF"), "PUT", syncData.connectionData, headers, {softfail: [403,405]});
+
+                                        syncData.setSyncState("eval.response.localchanges");
+                                        if (response && response.softerror) {
+                                            permissionError[changes[i].status] = true;
+                                            TbSync.eventlog.add("warning", syncData.eventLogInfo, "missing-permission::" + TbSync.getString(isAdding ? "acl.add" : "acl.modify", "dav"));
+                                        }
+                                    }
+                                } else {
+                                    TbSync.eventlog.add("warning", syncData.eventLogInfo, "cardnotfoundbutinchangelog::" + changes[i].itemId + "/" + changes[i].status);
+                                }
+                            }
+
+                            if (permissionError[changes[i].status]) {
+                                //we where not allowed to add or modify that card, remove it, we will get a fresh copy on the following revert
+                                let card = await syncData.target.getItem(changes[i].itemId);
+                                if (card) syncData.target.deleteItem(card);
+                                permissionErrors++;
+                            }
+                        }
+                        break;
+
+                    case "deleted_by_user":
+                        {
+                            if (!permissionError[changes[i].status]) { //if this operation failed already, do not retry
+                                syncData.setSyncState("send.request.localchanges");
+                                let response = await dav.network.sendRequest("", changes[i].itemId , "DELETE", syncData.connectionData, {}, {softfail: [403, 404, 405]});
+
+                                syncData.setSyncState("eval.response.localchanges");
+                                if (response  && response.softerror) {
+                                    if (response.softerror != 404) { //we cannot do anything about a 404 on delete, the card has been deleted here and is not avail on server
+                                        permissionError[changes[i].status] = true;
+                                        TbSync.eventlog.add("warning", syncData.eventLogInfo, "missing-permission::" + TbSync.getString("acl.delete", "dav"));
+                                    }
+                                }
+                            }
+
+                            if (permissionError[changes[i].status]) {
+                                permissionErrors++;                                
+                            }
+                        }
+                        break;
+                }
+
+                syncData.target.removeItemFromChangeLog(changes[i].itemId);                
+                syncData.progressData.inc(); //UI feedback
+            }
+
+
+        } while (true);
+
+        //return number of modified cards or the number of permission errors (negativ)
+        return (permissionErrors > 0 ? 0 - permissionErrors : syncData.progressData.done);
+    },
+}
diff --git a/unused/vcard/LICENSE b/unused/vcard/LICENSE
new file mode 100644
index 0000000..fa9dba1
--- /dev/null
+++ b/unused/vcard/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2018 Aleksandr Kitov
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/unused/vcard/SOURCE b/unused/vcard/SOURCE
new file mode 100644
index 0000000..21d88d2
--- /dev/null
+++ b/unused/vcard/SOURCE
@@ -0,0 +1 @@
+https://github.com/Heymdall/vcard/releases/tag/v0.2.7
\ No newline at end of file
diff --git a/unused/vcard/vcard.js b/unused/vcard/vcard.js
new file mode 100644
index 0000000..d1b9757
--- /dev/null
+++ b/unused/vcard/vcard.js
@@ -0,0 +1,305 @@
+(function (namespace) {
+    var PREFIX = 'BEGIN:VCARD',
+        POSTFIX = 'END:VCARD';
+
+    /**
+     * Return json representation of vCard
+     * @param {string} string raw vCard
+     * @returns {*}
+     */
+    function parse(string) {
+        var result = {},
+            lines = string.split(/\r\n|\r|\n/),
+            count = lines.length,
+            pieces,
+            key,
+            value,
+            meta,
+            namespace;
+
+        for (var i = 0; i < count; i++) {
+            if (lines[i] == '') {
+                continue;
+            }
+            if (lines[i].toUpperCase() == PREFIX || lines[i].toUpperCase() == POSTFIX) {
+                continue;
+            }
+            var data = lines[i];
+
+            /**
+             * Check that next line continues current
+             * @param {number} i
+             * @returns {boolean}
+             */
+            var isValueContinued = function (i) {
+                return i + 1 < count && (lines[i + 1][0] == ' ' || lines[i + 1][0] == '\t');
+            };
+            // handle multiline properties (i.e. photo).
+            // next line should start with space or tab character
+            if (isValueContinued(i)) {
+                while (isValueContinued(i)) {
+                    data += lines[i + 1].trim();
+                    i++;
+                }
+            }
+
+            pieces = data.split(':');
+            key = pieces.shift();
+            value = pieces.join(':');
+            namespace = false;
+            meta = {};
+
+            // meta fields in property
+            if (key.match(/;/)) {
+                key = key
+                    .replace(/\\;/g, 'ΩΩΩ')
+                    .replace(/\\,/, ',');
+                var metaArr = key.split(';').map(function (item) {
+                    return item.replace(/ΩΩΩ/g, ';');
+                });
+                key = metaArr.shift();
+                metaArr.forEach(function (item) {
+                    var arr = item.split('=');
+                    arr[0] = arr[0].toLowerCase();
+                    if (arr[0].length === 0) {
+                        return;
+                    }
+                    if (arr.length>1) {
+                        //removing boundary quotes and splitting up values, if send as list - upperCase for hitory reasons
+                        let metavalue = arr[1].replace (/(^")|("$)/g, '').toUpperCase().split(",");
+                        if (meta[arr[0]]) {
+                            meta[arr[0]].push(...metavalue);
+                        } else {
+                            meta[arr[0]] = metavalue;
+                        }
+                    }
+                });
+            }
+
+            // values with \n
+            value = value
+                .replace(/\\r/g, '')
+                .replace(/\\n/g, '\n');
+
+            value = tryToSplit(value);
+
+            // Grouped properties
+            if (key.match(/\./)) {
+                var arr = key.split('.');
+                key = arr[1];
+                namespace = arr[0];
+            }
+
+            var newValue = {
+                value: value
+            };
+            if (Object.keys(meta).length) {
+                newValue.meta = meta;
+            }
+            if (namespace) {
+                newValue.namespace = namespace;
+            }
+
+            if (key.indexOf('X-') !== 0) {
+                key = key.toLowerCase();
+            }
+
+            if (typeof result[key] === 'undefined') {
+                result[key] = [newValue];
+            } else {
+                result[key].push(newValue);
+            }
+
+        }
+
+        return result;
+    }
+
+    var HAS_SEMICOLON_SEPARATOR = /[^\\];|^;/,
+        HAS_COMMA_SEPARATOR = /[^\\],|^,/;
+    /**
+     * Split value by "," or ";" and remove escape sequences for this separators
+     * @param {string} value
+     * @returns {string|string[]
+     */
+    function tryToSplit(value) {
+        if (value.match(HAS_SEMICOLON_SEPARATOR)) {
+            value = value.replace(/\\,/g, ',');
+            return splitValue(value, ';');
+        } else if (value.match(HAS_COMMA_SEPARATOR)) {
+            value = value.replace(/\\;/g, ';');
+            return splitValue(value, ',');
+        } else {
+            return value
+                .replace(/\\,/g, ',')
+                .replace(/\\;/g, ';');
+        }
+    }
+    /**
+     * Split vcard field value by separator
+     * @param {string|string[]} value
+     * @param {string} separator
+     * @returns {string|string[]}
+     */
+    function splitValue(value, separator) {
+        var separatorRegexp = new RegExp(separator);
+        var escapedSeparatorRegexp = new RegExp('\\\\' + separator, 'g');
+        // easiest way, replace it with really rare character sequence
+        value = value.replace(escapedSeparatorRegexp, 'ΩΩΩ');
+        if (value.match(separatorRegexp)) {
+            value = value.split(separator);
+
+            value = value.map(function (item) {
+                return item.replace(/ΩΩΩ/g, separator);
+            });
+        } else {
+            value = value.replace(/ΩΩΩ/g, separator);
+        }
+        return value;
+    }
+
+    var guid = (function() {
+        function s4() {
+            return Math.floor((1 + Math.random()) * 0x10000)
+                .toString(16)
+                .substring(1);
+        }
+        return function() {
+            return s4() + s4() + '-' + s4() + '-' + s4() + '-' +
+                s4() + '-' + s4() + s4() + s4();
+        };
+    })();
+
+    var COMMA_SEPARATED_FIELDS = ['nickname', 'related', 'categories', 'pid'];
+
+    /**
+     * Generate vCard representation af object
+     * @param {*} data
+     * @param {obj} 
+     *       member "simpleType" returns all types joined by , instead of multiple TYPE= entries
+     *       member "addRequired" determine if generator should add required properties (version and uid)
+     * @returns {string}
+     */
+    function generate(data, options = {simpleType: true}) {
+        var lines = [PREFIX],
+            line = '';
+
+        if (options.addRequired && !data.version) {
+            data.version = [{value: '3.0'}];
+        }
+        if (options.addRequired && !data.uid) {
+            data.uid = [{value: guid()}];
+        }
+
+        var escapeCharacters = function (v) {
+            if (typeof v === 'undefined') {
+                return '';
+            }
+            return v
+                .replace(/\r\n|\r|\n/g, '\\n')
+                .replace(/;/g, '\\;')
+                .replace(/,/g, '\\,')
+        };
+
+        var escapeTypeCharacters = function(v) {
+            if (typeof v === 'undefined') {
+                return '';
+            }
+            return v
+                .replace(/\r\n|\r|\n/g, '\\n')
+                .replace(/;/g, '\\;')
+        };
+
+        Object.keys(data).forEach(function (key) {
+            if (!data[key] || typeof data[key].forEach !== 'function') {
+                return;
+            }
+            data[key].forEach(function (value) {
+                // ignore empty values
+                if (typeof value.value === 'undefined' || value.value == '') {
+                    return;
+                }
+                // ignore empty array values
+                if (value.value instanceof Array) {
+                    var empty = true;
+                    for (var i = 0; i < value.value.length; i++) {
+                        if (typeof value.value[i] !== 'undefined' && value.value[i] != '') {
+                            empty = false;
+                            break;
+                        }
+                    }
+                    if (empty) {
+                        return;
+                    }
+                }
+                line = '';
+
+                // add namespace if exists
+                if (value.namespace) {
+                    line += value.namespace + '.';
+                }
+                line += key.indexOf('X-') === 0 ? key : key.toUpperCase();
+
+                // add meta properties
+                if (typeof value.meta === 'object') {
+                    Object.keys(value.meta).forEach(function (metaKey) {
+                        // values of meta tags must be an array
+                        if (typeof value.meta[metaKey].forEach !== 'function') {
+                            return;
+                        }
+                        //join meta types so we get TYPE=a,b,c instead of TYPE=a;TYPE=b;TYPE=c
+                        let metaArr = (options.simpleType && metaKey.toUpperCase() === 'TYPE') ? [value.meta[metaKey].join(",")] : value.meta[metaKey];
+                        metaArr.forEach(function (metaValue) {
+                            if (metaKey.length > 0) {
+                                if (metaKey.toUpperCase() === 'TYPE') {
+                                        // Do not escape the comma when it is the type property. This breaks a lot.
+                                        line += ';' + escapeCharacters(metaKey.toUpperCase()) + '=' + escapeTypeCharacters(metaValue);
+                                } else {
+                                        line += ';' + escapeCharacters(metaKey.toUpperCase()) + '=' + escapeCharacters(metaValue);
+                                }
+                            }
+                        });
+                    });
+                }
+
+                line += ':';
+
+
+
+                if (typeof value.value === 'string') {
+                    line += escapeCharacters(value.value);
+                } else {
+                    // list-values
+                    var separator = COMMA_SEPARATED_FIELDS.indexOf(key) !== -1
+                        ? ','
+                        : ';';
+                    line += value.value.map(function (item) {
+                        return escapeCharacters(item);
+                    }).join(separator);
+                }
+
+                // line-length limit. Content lines
+                // SHOULD be folded to a maximum width of 75 octets, excluding the line break.
+                if (line.length > 75) {
+                    var firstChunk = line.substr(0, 75),
+                        least = line.substr(75);
+                    var splitted = least.match(/.{1,74}/g);
+                    lines.push(firstChunk);
+                    splitted.forEach(function (chunk) {
+                        lines.push(' ' + chunk);
+                    });
+                } else {
+                    lines.push(line);
+                }
+            });
+        });
+
+        lines.push(POSTFIX);
+        return lines.join('\r\n');
+    }
+
+    namespace.vCard = {
+        parse: parse,
+        generate: generate
+    };
+})(this);