handling errors and carry out via socket

debomatic-webui/lib/broadcaster.js

@@ -12,7 +12,10 @@ function __watch_build_status (socket, status) {
     var data = null
     try {
       data = JSON.parse(new_content)
-    } catch (error) { return }
+    } catch (err) {
+      utils.erros_handler('Broadcaster:__watch_build_status:JSON.parse(new_content) - ', err, socket)
+      return
+    }
     if (data.status == config.status.package.building) {
       status.packages.push(data)
     }

debomatic-webui/lib/client.js

@@ -3,6 +3,8 @@ var fs = require('fs')
   , config = require('./config.js')
   , utils = require('./utils.js')
 
+var _e = config.events.client
+
 function __get_files_list_from_package(data, callback) {
   package_path = utils.get_package_path(data)
   utils.get_files_list(package_path, false, function(files) {
@@ -108,9 +110,12 @@ function __send_distribution_packages (event_name, socket, data) {
 }
 
 function __send_file (event_name, socket, data) {
-  file_path = utils.get_file_path(data)
+  var file_path = utils.get_file_path(data)
   fs.readFile(file_path, 'utf8', function (err, content) {
-    if (err) return;
+    if (err) {
+      utils.errors_handler('client:__send_file', err, socket)
+      return
+    }
     data.file.orig_name = file_path.split('/').pop()
     data.file.content = content
     data.file.path = file_path.replace(config.debomatic.path, config.routes.debomatic)
@@ -119,8 +124,7 @@ function __send_file (event_name, socket, data) {
 }
 
 function __handler_get_file (socket, data) {
-  var _e = config.events.client
-  file_path = utils.get_file_path(data)
+  var file_path = utils.get_file_path(data)
   utils.watch_path_onsocket(_e.file_newcontent, socket, data, file_path, function(event_name, socket, data) {
     data.file.content = null
     socket.emit(event_name, data)
@@ -132,8 +136,6 @@ function Client (socket) {
 
   var socket = socket
 
-  var _e = config.events.client
-
   this.start = function () {
     // init send distributions and status
     utils.get_files_list(config.debomatic.path, true, function(distros) {

debomatic-webui/lib/utils.js

@@ -3,6 +3,14 @@ var path = require('path')
   , Tail = require('tail').Tail
   , config = require('./config.js')
 
+function __errors_handler(from, err, socket) {
+  if (! socket)
+    from = "NO SOCKET: " + from
+  console.error(from, err)
+  if (socket)
+    socket.emit(config.events.error, err.message)
+}
+
 function __check_no_backward(backward_path) {
   try {
     return backward_path.indexOf('..') < 0
@@ -37,7 +45,7 @@ function __get_files_list(dir, onlyDirectories, callback) {
   fs.readdir(dir, function(err, files){
     result = [];
     if (err) {
-      console.error(err);
+      __errors_handler("__get_files_list", err)
       return;
     }
     files.forEach( function(f) {
@@ -54,7 +62,10 @@ function __get_files_list(dir, onlyDirectories, callback) {
             result.push(f);
           }
         }
-      } catch (fs_error) {}
+      } catch (fs_error) {
+        __errors_handler("__get_files_list:forEach", fs_err)
+        return
+      }
     });
     callback(result);
   });
@@ -63,6 +74,7 @@ function __get_files_list(dir, onlyDirectories, callback) {
 function __watch_path_onsocket(event_name, socket, data, watch_path, updater) {
   name = "watcher-" + event_name
   socket.get(name, function (err, watcher) {
+    try {
       if (watcher) {
         try {
           watcher.unwatch()
@@ -70,10 +82,11 @@ function __watch_path_onsocket(event_name, socket, data, watch_path, updater) {
           watcher.close()
         }
       }
-    try {
       fs.stat(watch_path, function(err, stats) {
-        if (err)
+        if (err) {
+          utils.errors_handler("__watch_path_onsocket:fs.stat", err, socket)
           return
+        }
         if (stats.isDirectory()) {
           watcher = fs.watch(watch_path, {persistent: true}, function (event, fileName) {
           if(event == 'rename')
@@ -85,12 +98,20 @@ function __watch_path_onsocket(event_name, socket, data, watch_path, updater) {
           watcher.on('line', function(new_content) {
             data.file.new_content = new_content + '\n'
             updater(event_name, socket, data)
+          }).on('error', function(err) {
+            watcher.unwatch()
+            __errors_handler("__watch_path_onsocket.Tail <- " + arguments.callee.caller.name, err, socket)
+            return
           })
-        }
         socket.set(name, watcher)
+        }
       })
-    } catch (err_watch) { console.error('utils.__watch_path_onsocket ' + err_watch)}
+    } catch (err) {
+      __errors_handler("__watch_path_onsocket <- " + arguments.callee.caller.name, err, socket)
+      return
+    }
   })
+  return true;
 }
 
 function __generic_handler_watcher(event_name, socket, data, watch_path, callback) {
@@ -126,6 +147,9 @@ utils = {
   generic_handler_watcher: function(event_name, socket, data, watch_path, callback) {
     return __generic_handler_watcher(event_name, socket, data, watch_path, callback);
   },
+  errors_handler: function(from, error, socket) {
+    return __errors_handler(from, error, socket)
+  }
 }
 
 module.exports = utils

debomatic-webui/public/javascripts/page_generic.js

@@ -98,8 +98,6 @@ function Page_Generic()
       distributions.set(socket_distributions)
     });
 
-    socket.on('error', function(socket_data_error) { console.error(socket_data_error) });
-
     socket.on(_e.client.status, function(packages_status) {
       status.set(packages_status)
     })
@@ -107,5 +105,9 @@ function Page_Generic()
     socket.on(_e.broadcast.status_update, function(package_status) {
       status.update(package_status)
     })
+
+    socket.on(_e.error, function(error) {
+      console.error(error)
+    })
   }
 }