Add ability to not be hosted publicly

lib/about.js

@@ -25,6 +25,7 @@ module.exports = function (sbot, id, cb) {
       if (c.name) feedAbout.name = c.name.replace(/^@?/, '@')
       if (c.image) feedAbout.image = linkDest(c.image)
       if (c.description) feedAbout.description = c.description
+      if (c.publicWebHosting && author == c.about) feedAbout.publicWebHosting = c.publicWebHosting
     }, function (err) {
       if (err) return cb(err)
       // Use whatever properties have the most counts.

render.js

@@ -114,6 +114,13 @@ function toolTipTop() {
 }
 
 function renderAbout(opts, about, showAllHTML = "") {
+  if (about.publicWebHosting == 'false') {
+    return pull(
+      pull.map(renderMsg.bind(this, opts, '')),
+      wrap(toolTipTop() + '<main>', '</main>' + callToAction())
+    );
+  }
+
   opts.mentions = {};
   var figCaption = h('figcaption');
   figCaption.innerHTML = 'Feed of ' + about.name + '<br>' + marked(String(about.description), opts.marked);
@@ -338,6 +345,7 @@ function docWrite(str) {
 
 function renderMsg(opts, id, msg) {
   if (opts.renderPrivate == false && typeof(msg.value.content) == 'string') return ''
+  if (msg.author.publicWebHosting == 'false') return h('article', 'User has chosen not to be hosted publicly').outerHTML;
   var c = msg.value.content || {};
   var name = encodeURIComponent(msg.key);
   return h('article#' + name,