Added ability to listen on all ports + executable

Author: RandyParedis

.gitignore

@@ -3,6 +3,8 @@ __pycache__/
 *.py[cod]
 *$py.class
 
+.idea/
+
 # C extensions
 *.so
 

.idea/PySysLogQt.iml

@@ -1,11 +1,26 @@
 # PySysLogQt
 Simple `syslog` viewer written in `Python 3`.
 
-**Note: It is nothing too fancy at this point in time. Currently, there are no intentions of making this too fancy. Features may be requested in the _Issues_ page.**
+**Note: It is nothing too fancy at this point in time. Currently, there are
+no intentions of making this too fancy. Features may be requested in the
+_Issues_ page.**
 
-## Run from Source:
+## Execution
+### Run from Source
 Make sure you have `Python 3` and `PyQt5` installed.
 In the root directory, execute
 ```bash
 python3 __main__.py
 ```
+
+### Run from Executable
+For Linux-systems, an executable is bundled for simplicity of use. This file
+is located in the `dist` folder, or can be downloaded from the latest version.
+
+## Allow all Ports
+By default, all ports below 1024 (with the exception of port 0) require root
+access. Execute the application as such to be able to capture all those
+messages.
+
+Capturing on port 0 is disallowed, since it commonly indicates "_choose any
+valid port_".

.idea/inspectionProfiles/profiles_settings.xml

@@ -0,0 +1 @@
+pyinstaller -n PySysLogQt --onefile --windowed __main__.py

.idea/misc.xml

@@ -66,9 +66,8 @@ def handle(self):
         match = re.search(r"^<\d+>", data)
         prio = int(match.group(0)[1:-1])
 
-        socket = self.request[1]
-        f = socket.fileno()
-        level = self.levels[prio ^ (f << 3)]
+        f = prio // 8
+        level = self.levels[prio % 8]
 
         global TABLE
         row = TABLE.rowCount()
@@ -113,17 +112,32 @@ def searchTable(self, text):
     def change(self):
         self.end()
 
-        dialog = ServerDialog()
-        dialog.exec_()
-        self.host.setText(dialog.host.text())
-        self.port.setValue(dialog.port.value())
+        def accept():
+            self.host.setText(dialog.host.text())
+            self.port.setValue(dialog.port.value())
+            self.start()
+
+        def reject():
+            self.deleteLater()
 
-        self.start()
+        dialog = ServerDialog(self)
+        dialog.accepted.connect(accept)
+        dialog.rejected.connect(reject)
+        dialog.exec_()
 
     def start(self):
-        # TODO: catch "address already in use"
-        self.server = socketserver.UDPServer((self.host.text(), self.port.value()), SyslogUDPHandler)
-        self.thread.start()
+        try:
+            self.server = socketserver.UDPServer((self.host.text(), self.port.value()), SyslogUDPHandler)
+            self.thread.start()
+            return
+        except PermissionError as e:
+            QtWidgets.QMessageBox.warning(self, str(e), "You don't have permission to listen on this port.\n"
+                                                        "The ports below 1024 require root access.")
+        except OSError as e:
+            QtWidgets.QMessageBox.warning(self, str(e), "The address '%s:%i' is already in use." %
+                                          (self.host.text(), self.port.value()))
+
+        self.change()
 
     def run(self):
         # print("STARTED")

.idea/modules.xml

@@ -113,7 +113,7 @@
        <bool>false</bool>
       </property>
       <property name="minimum">
-       <number>1024</number>
+       <number>0</number>
       </property>
       <property name="maximum">
        <number>65535</number>