diff --git a/plugins/http-files/src/manager.vala b/plugins/http-files/src/manager.vala
index 5b804a00..f398b700 100644
--- a/plugins/http-files/src/manager.vala
+++ b/plugins/http-files/src/manager.vala
@@ -33,16 +33,22 @@ public class Manager : StreamInteractionModule, Object {
     }
 
     public bool is_upload_available(Account account) {
-        return max_file_sizes.has_key(account);
+        lock (max_file_sizes) {
+            return max_file_sizes.has_key(account);
+        }
     }
 
     public int? get_max_file_size(Account account) {
-        return max_file_sizes[account];
+        lock (max_file_sizes) {
+            return max_file_sizes[account];
+        }
     }
 
     private void on_stream_negotiated(Account account, Core.XmppStream stream) {
         stream_interactor.module_manager.get_module(account, UploadStreamModule.IDENTITY).feature_available.connect((stream, max_file_size) => {
-            max_file_sizes[account] = max_file_size;
+            lock (max_file_sizes) {
+                max_file_sizes[account] = max_file_size;
+            }
             upload_available(account);
         });
     }
diff --git a/xmpp-vala/CMakeLists.txt b/xmpp-vala/CMakeLists.txt
index 80e665e2..54bd3886 100644
--- a/xmpp-vala/CMakeLists.txt
+++ b/xmpp-vala/CMakeLists.txt
@@ -13,6 +13,7 @@ SOURCES
     "src/core/stanza_node.vala"
     "src/core/stanza_reader.vala"
     "src/core/stanza_writer.vala"
+    "src/core/xmpp_log.vala"
     "src/core/xmpp_stream.vala"
 
     "src/module/bind.vala"
diff --git a/xmpp-vala/src/core/xmpp_log.vala b/xmpp-vala/src/core/xmpp_log.vala
new file mode 100644
index 00000000..7cfbf92f
--- /dev/null
+++ b/xmpp-vala/src/core/xmpp_log.vala
@@ -0,0 +1,127 @@
+using Gee;
+
+namespace Xmpp.Core {
+
+public class XmppLog {
+    protected const string ANSI_COLOR_END = "\x1b[0m";
+    protected const string ANSI_COLOR_WHITE = "\x1b[37;1m";
+
+    class NodeLogDesc {
+        public string? name;
+        private string? ns_uri;
+        private string? val;
+        private Map<string, string?> attrs = new HashMap<string, string?>();
+        private NodeLogDesc? inner;
+
+        public NodeLogDesc(string desc) {
+            string d = desc;
+
+            if (d.contains("[")) {
+                int start = d.index_of("[");
+                int end = d.index_of("]");
+                string attrs = d.substring(start + 1, end - start - 1);
+                d = d.substring(0, start) + d.substring(end + 1);
+                foreach (string attr in attrs.split(",")) {
+                    if (attr.contains("=")) {
+                        string key = attr.substring(0, attr.index_of("="));
+                        string val = attr.substring(attr.index_of("=") + 1);
+                        this.attrs[key] = val;
+                    } else {
+                        this.attrs[attr] = null;
+                    }
+                }
+            }
+            if (d.contains(":") && d.index_of("{") == 0 && d.index_of("}") != -1) {
+                int end = d.index_of("}");
+                this.ns_uri = d.substring(1, end - 2);
+                d = d.substring(end + 2);
+            }
+            if (d.contains(".")) {
+                inner = new NodeLogDesc(d.substring(d.index_of(".") + 1));
+                d = d.substring(0, d.index_of("."));
+            } else if (d.contains("=")) {
+                this.val = d.substring(d.index_of("="));
+                d = d.substring(0, d.index_of("="));
+            }
+
+            if (d != "") this.name = d;
+        }
+
+        public bool matches(StanzaNode node) {
+            if (name != null && node.name != name) return false;
+            if (ns_uri != null && node.ns_uri != ns_uri) return false;
+            if (val != null && node.val != val) return false;
+            foreach (var pair in attrs.entries) {
+                if (pair.value == null && node.get_attribute(pair.key) == null) return false;
+                        else if (pair.value != null && pair.value != node.get_attribute(pair.key)) return false;
+            }
+            if (inner == null) return true;
+            foreach (StanzaNode snode in node.get_all_subnodes()) {
+                if (((!)inner).matches(snode)) return true;
+            }
+            return false;
+        }
+    }
+
+    private bool use_ansi;
+    private bool hide_ns = true;
+    private string ident;
+    private string desc;
+    private Gee.List<NodeLogDesc> descs = new ArrayList<NodeLogDesc>();
+
+    public XmppLog(string? ident = null, string? desc = null) {
+        this.ident = ident ?? "";
+        this.desc = desc ?? "";
+        this.use_ansi = is_atty(stderr.fileno());
+        while (this.desc.contains(";")) {
+            string opt = this.desc.substring(0, this.desc.index_of(";"));
+            this.desc = this.desc.substring(opt.length + 1);
+            switch (opt) {
+                case "ansi": use_ansi = true; break;
+                case "no-ansi": use_ansi = false; break;
+                case "hide-ns": hide_ns = true; break;
+                case "show-ns": hide_ns = false; break;
+            }
+        }
+        if (desc != "") {
+            foreach (string d in this.desc.split("|")) {
+                descs.add(new NodeLogDesc(d));
+            }
+        }
+    }
+
+    public virtual bool should_log_node(StanzaNode node) {
+        if (ident == "" || desc == "") return false;
+        if (desc == "all") return true;
+        foreach (var desc in descs) {
+            if (desc.matches(node)) return true;
+        }
+        return false;
+    }
+
+    public virtual bool should_log_str(string str) {
+        if (ident == "" || desc == "") return false;
+        if (desc == "all") return true;
+        foreach (var desc in descs) {
+            if (desc.name == "#text") return true;
+        }
+        return false;
+    }
+
+    public void node(string what, StanzaNode node) {
+        if (should_log_node(node)) {
+            stderr.printf("%sXMPP %s [%s]%s\n%s\n", ANSI_COLOR_WHITE, what, ident, ANSI_COLOR_END, use_ansi ? node.to_ansi_string(hide_ns) : node.to_string());
+        }
+    }
+
+    public void str(string what, string str) {
+        if (should_log_str(str)) {
+            stderr.printf("%sXMPP %s [%s]%s\n%s\n", ANSI_COLOR_WHITE, what, ident, ANSI_COLOR_END, str);
+        }
+    }
+
+    [CCode (cname = "isatty")]
+    private static extern bool is_atty(int fd);
+}
+
+}
diff --git a/xmpp-vala/src/core/xmpp_stream.vala b/xmpp-vala/src/core/xmpp_stream.vala
index 682639a8..715e7832 100644
--- a/xmpp-vala/src/core/xmpp_stream.vala
+++ b/xmpp-vala/src/core/xmpp_stream.vala
@@ -10,128 +10,6 @@ public errordomain IOStreamError {
 
 }
 
-public class XmppLog {
-    protected const string ANSI_COLOR_END = "\x1b[0m";
-    protected const string ANSI_COLOR_WHITE = "\x1b[37;1m";
-
-    class NodeLogDesc {
-        public string? name;
-        private string? ns_uri;
-        private string? val;
-        private Map<string, string?> attrs = new HashMap<string, string?>();
-        private NodeLogDesc? inner;
-
-        public NodeLogDesc(string desc) {
-            string d = desc;
-
-            if (d.contains("[")) {
-                int start = d.index_of("[");
-                int end = d.index_of("]");
-                string attrs = d.substring(start + 1, end - start - 1);
-                d = d.substring(0, start) + d.substring(end + 1);
-                foreach (string attr in attrs.split(",")) {
-                    if (attr.contains("=")) {
-                        string key = attr.substring(0, attr.index_of("="));
-                        string val = attr.substring(attr.index_of("=") + 1);
-                        this.attrs[key] = val;
-                    } else {
-                        this.attrs[attr] = null;
-                    }
-                }
-            }
-            if (d.contains(":") && d.index_of("{") == 0 && d.index_of("}") != -1) {
-                int end = d.index_of("}");
-                this.ns_uri = d.substring(1, end - 2);
-                d = d.substring(end + 2);
-            }
-            if (d.contains(".")) {
-                inner = new NodeLogDesc(d.substring(d.index_of(".") + 1));
-                d = d.substring(0, d.index_of("."));
-            } else if (d.contains("=")) {
-                this.val = d.substring(d.index_of("="));
-                d = d.substring(0, d.index_of("="));
-            }
-
-            if (d != "") this.name = d;
-        }
-
-        public bool matches(StanzaNode node) {
-            if (name != null && node.name != name) return false;
-            if (ns_uri != null && node.ns_uri != ns_uri) return false;
-            if (val != null && node.val != val) return false;
-            foreach (var pair in attrs.entries) {
-                if (pair.value == null && node.get_attribute(pair.key) == null) return false;
-                else if (pair.value != null && pair.value != node.get_attribute(pair.key)) return false;
-            }
-            if (inner == null) return true;
-            foreach (StanzaNode snode in node.get_all_subnodes()) {
-                if (((!)inner).matches(snode)) return true;
-            }
-            return false;
-        }
-    }
-
-    private bool use_ansi;
-    private bool hide_ns = true;
-    private string ident;
-    private string desc;
-    private ArrayList<NodeLogDesc> descs = new ArrayList<NodeLogDesc>();
-
-    public XmppLog(string? ident = null, string? desc = null) {
-        this.ident = ident ?? "";
-        this.desc = desc ?? "";
-        this.use_ansi = is_atty(stderr.fileno());
-        while (this.desc.contains(";")) {
-            string opt = this.desc.substring(0, this.desc.index_of(";"));
-            this.desc = this.desc.substring(opt.length + 1);
-            switch (opt) {
-                case "ansi": use_ansi = true; break;
-                case "no-ansi": use_ansi = false; break;
-                case "hide-ns": hide_ns = true; break;
-                case "show-ns": hide_ns = false; break;
-            }
-        }
-        if (desc != "") {
-            foreach (string d in this.desc.split("|")) {
-                descs.add(new NodeLogDesc(d));
-            }
-        }
-    }
-
-    public virtual bool should_log_node(StanzaNode node) {
-        if (ident == "" || desc == "") return false;
-        if (desc == "all") return true;
-        foreach (var desc in descs) {
-            if (desc.matches(node)) return true;
-        }
-        return false;
-    }
-
-    public virtual bool should_log_str(string str) {
-        if (ident == "" || desc == "") return false;
-        if (desc == "all") return true;
-        foreach (var desc in descs) {
-            if (desc.name == "#text") return true;
-        }
-        return false;
-    }
-
-    public void node(string what, StanzaNode node) {
-        if (should_log_node(node)) {
-            stderr.printf("%sXMPP %s [%s]%s\n%s\n", ANSI_COLOR_WHITE, what, ident, ANSI_COLOR_END, use_ansi ? node.to_ansi_string(hide_ns) : node.to_string());
-        }
-    }
-
-    public void str(string what, string str) {
-        if (should_log_str(str)) {
-            stderr.printf("%sXMPP %s [%s]%s\n%s\n", ANSI_COLOR_WHITE, what, ident, ANSI_COLOR_END, str);
-        }
-    }
-
-    [CCode (cname = "isatty")]
-    private static extern bool is_atty(int fd);
-}
-
 public class XmppStream {
     private static string NS_URI = "http://etherx.jabber.org/streams";