First commit

README.md

@@ -0,0 +1,30 @@
+Save Telegram Chat History
+--------------------------
+
+###Why this extension?
+Perhaps, many of us use and like Telegram messenger for conversations with friends. However, we were a bit disappointed by the absence of any sort of easy-accessible "Save Conversation" feature in the messenger. Therefore, we've written a Chrome extension for it! 
+
+###How It Works
+- Install the Chrome extension ["Save Telegram Chat History"](https://chrome.google.com/webstore/detail/save-telegram-chat-histor/kgldnbjoeinkkgpphaaljlfhfdbndfjc?hl=en). You should now see a new icon in the browser.
+- Visit https://web.telegram.org.
+- Select a peer you want to get history from.
+- Click on the icon "Save Telegram Chat History".
+- In the popup window click one of the buttons to fetch some messages, then 'Save As' to a local file.
+- Congratulations! You are done.
+
+
+###Features
+* Shows your chat history with a Telegram peer or a group as text.
+* Works even for DELETED accounts.
+* Browse photos depending on the cursor position or as a list, with possibility to save one by one (since 2.1.0).
+* Fetching history without scrolling (since 2.0.0).
+* You can configure the output format (since 1.3.0).
+
+###Requirements
+* Chrome browser (48+), not tested on older versions.
+* Supported languages of web interface are English, German, Spanish, Italian, Dutch, and Portuguese.
+
+###Feedback
+If you have any feedback, feel free to visit us at https://github.com/pigpagnet/save-telegram-chat-history. The code is open-source.
+
+

RELEASE_NOTES.md

@@ -0,0 +1,37 @@
+###Release Notes
+
+February 2017 --- Version 2.1.1
+* Fixed the options page
+
+February 13, 2017 --- Version 2.1.0
+* Opens a list of all photos with possibility to navigate
+* Opens previous or next photo based on cursor in the chat log
+* Shows the time progress after 1.0 sec.
+* Remembers the scroll position
+
+
+October 4, 2016 --- Version 2.0.0
+* Faster loading history through the angular model
+
+
+September 10, 2016 --- Version 1.3.1
+* Supported multiple languages
+* Added diagnostic messages
+
+
+July 24, 2016 --- Version 1.3.0
+ * Added options to configure the output format
+
+
+July 6, 2016 --- Version 1.2.0 
+ * Improved efficiency
+ * Added autoscroll history
+
+
+June 16, 2016 --- Version 1.1.0
+ * Fixed parsing date format
+
+
+February 7, 2016 --- Version 1.0.0
+ * Initial release
+

background.html

@@ -0,0 +1,3 @@
+<script type="text/javascript">
+var textAreaScroll = 0
+</script>

content_script.js

@@ -0,0 +1,52 @@
+function inject_script(script_name){
+	var s = document.createElement('script');
+	s.src = chrome.extension.getURL(script_name);
+	(document.head||document.documentElement).appendChild(s);
+	//s.onload = function() {
+	//    s.parentNode.removeChild(s);
+	//};
+}
+
+inject_script('generic_tools.js')
+inject_script('inject.js')
+console.log("script injected.")
+
+document.addEventListener('from_injected', function(e) {
+    //console.log("sending message with history to extension");
+    chrome.runtime.sendMessage({detail: e.detail}, null);
+});
+
+//-----------------------------------
+/*keep_scrolling = false;
+
+function scrollUp(){
+  $('.nano.im_history_wrap').nanoScroller({scroll:'top'});
+  if (keep_scrolling){
+    setTimeout(scrollUp, 1000);
+  }
+}*/
+
+chrome.runtime.onMessage.addListener(function (request_msg, sender, sendResponse) {
+    console.log('content script received request '+request_msg.text);
+    if (request_msg.text === 'stch_check_conn') {
+        sendResponse({text : "OK"})
+    }
+    if (request_msg.text === 'stch_load_current_history') {
+        document.dispatchEvent(new CustomEvent('to_injected_current', {}));
+    }
+    if (request_msg.text === 'stch_load_more_history') {
+        document.dispatchEvent(new CustomEvent('to_injected_get_more', 
+            {'detail':request_msg.value}));
+    }
+    if (request_msg.text === 'stch_open_photos') {
+        document.dispatchEvent(new CustomEvent('to_injected_open_photos',
+            {'detail':request_msg.value}));
+    }
+    /*if (request_msg.text === 'stch_start_scrolling_up'){
+      keep_scrolling = true;
+      scrollUp();
+    }
+    if (request_msg.text === 'stch_stop_scrolling'){
+      keep_scrolling = false;
+    }*/
+});

generic_tools.js

@@ -0,0 +1,102 @@
+// Message format
+defaultMapFormats = {
+  formatCompact:"dt, u: m",
+  formatLarge:"u [dt]\\nm\\n",
+  formatCustom:"",
+  selected:"formatCompact",  
+};
+
+function formatMsg(format, datetime, username, text){
+  var msg = format;
+  var mapObj = {
+    dt:datetime,
+    d:datetime.substring(0,10),
+    t:datetime.substring(11,19),
+    u:username,
+    m:text,
+  };
+  var re = new RegExp(Object.keys(mapObj).join("|"),"gi");
+  msg = msg.replace(re, function(matched){
+    return mapObj[matched];
+  });
+  return msg;
+}
+
+function prepareFormat(format) {
+  format = format.replace(/\\n/g, "\n");
+  format = format.replace(/\\t/g, "\t");
+  return format;
+}
+
+
+
+
+// Argument is of type Date.
+// Some examples:
+//   d = new Date();  // current date
+//   d.setMonth(d.getMonth() - 3); // set 3 month prior to date
+function formatDate(d){
+  return lead(d.getDate())+'.'+lead(d.getMonth()+1)+'.'+d.getFullYear() + ' ' 
+    + lead(d.getHours()) + ':' + lead(d.getMinutes()) + ':' + lead(d.getSeconds());
+  //Example of output   31.12.2016 23:59:59
+}
+
+function formatDateForFileName(d){
+  return d.getFullYear() + '_' +lead(d.getMonth()+1)+'_' + lead(d.getDate()) +'--'
+    + lead(d.getHours()) + '-' + lead(d.getMinutes()) + '-' + lead(d.getSeconds());
+}
+
+function lead(a){
+  var s = '0' + a;
+  if (s.length>2)
+    s = s.substr(1);
+  return s;
+}
+
+function friendlySize(size){
+  var s = '' + size
+  var res = s
+    for(var i=s.length-3; i>0; i-=3){
+    res = res.slice(0,i) + "'" + res.slice(i)
+  }
+  return res
+}
+
+
+function appendWithSpace(input_string, new_part){
+  if (new_part.length == 0)
+    return input_string
+  if (input_string.length > 0)
+    return input_string + ' ' + new_part
+  return input_string + new_part
+}
+
+
+function comparatorArithmetic(a,b){
+  return a-b
+}
+
+// var arr = [3,4,6]
+// binSearch(arr, 5, comparator)
+function binSearch(arr, val, comparator) {
+  if (comparator == null){
+    comparator = comparatorArithmetic
+  }
+  var left = -1
+  var right = arr.length + 1
+  while (right - left > 1){    
+    var mid = Math.floor((right + left) / 2)    
+    var cmp = comparator(arr[mid], val)        
+    if (cmp == 0){
+      return mid
+    }    
+    if (cmp < 0){
+      left = mid
+    }else{
+      right = mid
+    }
+  } 
+  return -right
+}
+
+