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1 files changed, 264 insertions, 0 deletions

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+// generate a public.private keypair with TweetNaCl.js
+
+function getKeys () {
+  if (localStorage['id']) {
+    var keys = JSON.parse(localStorage['id'])
+    return keys
+  } else {
+
+    var genkey = nacl.sign.keyPair()
+    if (genkey) {
+      var keys = {
+        publicKey: '@' + nacl.util.encodeBase64(genkey.publicKey),
+        privateKey: nacl.util.encodeBase64(genkey.secretKey),
+      }
+
+      console.log(genkey)
+      if ((keys.publicKey.includes('+')) || (keys.publicKey.includes('/'))) {
+        console.log('TRYING AGAIN')
+        setTimeout(function () {
+          window.location.reload()
+        }, 100)
+      } else {
+        localStorage['id'] = JSON.stringify(keys)
+        return keys
+      }
+    }
+  }
+}
+
+// publish new messages to your log
+function publish (content, keys) {
+
+  if (localStorage[keys.publicKey]) {
+    var log = JSON.parse(localStorage[keys.publicKey])
+    var lastPost = log[0]
+    var seq = lastPost.content.sequence
+    content.sequence = ++seq
+    content.previous = nacl.util.encodeBase64(nacl.hash(nacl.util.decodeUTF8(JSON.stringify(log[0]))))
+    console.log(content.previous)
+  } else {
+    console.log('SEQUENCE 0')
+    content.sequence = 0
+  }
+
+  var post = {
+     content: content,
+     signature: nacl.util.encodeBase64(nacl.sign(nacl.util.decodeUTF8(JSON.stringify(content)), nacl.util.decodeBase64(keys.privateKey)))
+   }
+
+  // add key (which is a hash of the stringified object post)
+  post.key = '%' + nacl.util.encodeBase64(nacl.hash(nacl.util.decodeUTF8(JSON.stringify(post))))
+
+  // update the log
+  updateLog(keys.publicKey, post)
+
+  var scroller = document.getElementById('scroller')
+  if (scroller.firstChild) {
+    scroller.insertBefore(renderMessage(post), scroller.childNodes[1])
+  } else {
+    scroller.appendChild(renderMessage(post))
+  }
+}
+
+// update your log in the browser
+
+function updateLog (feed, post) {
+  if (localStorage[feed]) {
+    var log = JSON.parse(localStorage[feed])
+    log.unshift(post)
+    localStorage[feed] = JSON.stringify(log)
+  } else {
+    var log = [post]
+    localStorage[feed] = JSON.stringify(log)
+  }
+
+  if (localStorage['log']) {
+    var log = JSON.parse(localStorage['log'])
+    log.unshift(post) 
+    localStorage['log'] = JSON.stringify(log)
+  } else {
+    var log = [post]
+    localStorage['log'] = JSON.stringify(log)
+  }
+}
+
+// file uploaders for user images
+
+function readFile () {
+  if (this.files && this.files[0]) {
+
+    var fr = new FileReader();
+
+    fr.addEventListener("load", function(e) {
+      var image = e.target.result
+      document.getElementById("img").src       = e.target.result;
+      document.getElementById("img").style = 'width: 75px; height: 75px';
+      document.getElementById("b64").innerHTML = e.target.result;
+    });
+
+    fr.readAsDataURL( this.files[0] );
+  }
+
+}
+
+
+// render messages
+
+function renderMessage (post) {
+  var message = h('div', {classList: 'message'})
+
+  if  (post.content.type == 'name') {
+    var mini = h('span', [
+      ' identified as ',
+      post.content.text
+    ])
+
+    message.appendChild(getHeader(post, mini))
+    //message.appendChild(h('pre', [JSON.stringify(post)]))
+  }
+
+  if (post.content.type == 'image') {
+
+    var mini = h('span', [
+      ' identified as ',
+      h('img', {classList: 'small', src:post.content.image}) 
+    ])
+ 
+    message.appendChild(getHeader(post, mini))
+    //message.appendChild(h('pre', [JSON.stringify(post)]))
+  }
+
+  if (post.content.type == 'post') {
+
+
+    message.appendChild(getHeader(post))
+    message.appendChild(h('div', [post.content.text]))
+    message.appendChild(h('pre', [JSON.stringify(post)]))
+
+    var textarea = h('textarea', {placeholder: 'Reply to this bog post'})
+
+    message.appendChild(h('button', {
+      onclick: function () {
+        message.appendChild(textarea)
+        message.appendChild(h('button', {
+          onclick: function () {
+            if (textarea.value) {
+              var content = {
+                author: keys.publicKey,
+                type: 'post',
+                text: textarea.value,
+                reply: post.key,
+                timestamp: Date.now()
+              }
+              console.log(content)
+              publish(content, keys)
+            }
+          }
+        }, ['Publish']))
+        
+      }
+    }, ['Reply']))
+
+
+  }
+
+  return message
+}
+
+
+function getImage (id) {
+  var image = h('img', {classList: 'small'})
+
+  if (localStorage[id]) {
+    var log = JSON.parse(localStorage[id])
+    for (var i=0; i < log.length; i++) {
+      var imagePost = log[i]
+      if (imagePost.content.type == 'image') {
+        image = h('img', {classList: 'small', src: imagePost.content.image})
+        return image
+      } 
+    }
+  }
+
+  return image
+}
+
+function getName (id) {
+  var name = h('span', [id])
+  if (localStorage[id]) {
+    var log = JSON.parse(localStorage[id])
+    for (var i=0; i < log.length; i++) {
+      var namePost = log[i]
+      if (namePost.content.type == 'name') {
+        name = h('span', ['@' + namePost.content.text])
+        return name
+      }
+    }
+  }
+  return name
+}
+
+function getHeader (post, mini) {
+  var inner 
+  if (mini) {
+    var inner = mini
+  }
+
+  var head = h('span', [
+    h('a', {href: '#' + post.key}, [
+      h('p', {classList: 'right'}, [human(new Date(post.content.timestamp))]),
+    ]),
+    h('p', [
+      h('a', {href: '#' + post.content.author}, [
+        getImage(post.content.author),
+        getName(post.content.author)
+      ]),
+      inner
+    ])
+  ])
+  return head
+}
+
+// human-time by Dave Eddy https://github.com/bahamas10/human
+
+function human(seconds) {
+  if (seconds instanceof Date)
+    seconds = Math.round((Date.now() - seconds) / 1000);
+  var suffix = seconds < 0 ? 'from now' : 'ago';
+  seconds = Math.abs(seconds);
+
+  var times = [
+    seconds / 60 / 60 / 24 / 365, // years
+    seconds / 60 / 60 / 24 / 30,  // months
+    seconds / 60 / 60 / 24 / 7,   // weeks
+    seconds / 60 / 60 / 24,       // days
+    seconds / 60 / 60,            // hours
+    seconds / 60,                 // minutes
+    seconds                       // seconds
+  ];
+  var names = ['year', 'month', 'week', 'day', 'hour', 'minute', 'second'];
+
+  for (var i = 0; i < names.length; i++) {
+    var time = Math.floor(times[i]);
+    var name = names[i];
+    if (time > 1)
+      name += 's';
+
+    if (time >= 1)
+      return time + ' ' + name + ' ' + suffix;
+  }
+  return '0 seconds ' + suffix;
+}
+
+// hscrpt by Dominic Tarr https://github.com/dominictarr/hscrpt/blob/master/LICENSE
+function h (tag, attrs, content) {
+  if(Array.isArray(attrs)) content = attrs, attrs = {}
+  var el = document.createElement(tag)
+  for(var k in attrs) el[k] = attrs[k]
+  if(content) content.forEach(function (e) {
+    if(e) el.appendChild('string' == typeof e ? document.createTextNode(e) : e)
+  })
+  return el
+}
+