[libcalamares] Read structured upload-server info

- Use just type and url, since port can be specified in
  a URL. Note that we only use host and port, not the
  scheme (or the path, for that matter).
- Factor out understanding the *uploadServer* key to a function.

src/branding/default/branding.desc

@@ -220,15 +220,13 @@ slideshowAPI: 2
 
 
 # These options are to customize online uploading of logs to pastebins:
-#  - type   :  Defines the kind of pastebin service to be used.Currently
-#              it accepts two values:
-#              - none    :    disables the pastebin functionality
-#              - fiche   :    use fiche pastebin server
-#  - url    :  Defines the address of pastebin service to be used.
-#              Takes string as input
-#  - port   :  Defines the port number to be used to send logs. Takes 
-#              integer as input
+#  - type : Defines the kind of pastebin service to be used. Currently
+#           it accepts two values:
+#           - none    :    disables the pastebin functionality
+#           - fiche   :    use fiche pastebin server
+#  - url  : Defines the address of pastebin service to be used.
+#           Takes string as input. Important bits are the host and port,
+#           the scheme is not used.
 uploadServer :
     type :    "fiche"
-    url :      "termbin.com"
-    port :     9999
+    url :     "http://termbin.com:9999"

src/libcalamaresui/Branding.cpp

@@ -138,6 +138,32 @@ loadStrings( QMap< QString, QString >& map,
     }
 }
 
+static Branding::UploadServerInfo
+uploadServerFromMap( const QVariantMap& map )
+{
+    using Type = Branding::UploadServerType;
+    // *INDENT-OFF*
+    // clang-format off
+    static const NamedEnumTable< Type > names {
+        { "none", Type::None },
+        { "fiche", Type::Fiche }
+    };
+    // clang-format on
+    // *INDENT-ON*
+
+    QString typestring = map[ "type" ].toString();
+    QString urlstring = map[ "url" ].toString();
+
+    if ( typestring.isEmpty() || urlstring.isEmpty() )
+    {
+        return Branding::UploadServerInfo( Branding::UploadServerType::None, QUrl() );
+    }
+
+    bool bogus = false;  // we don't care about type-name lookup success here
+    return Branding::UploadServerInfo( names.find( typestring, bogus ),
+                                       QUrl( urlstring, QUrl::ParsingMode::StrictMode ) );
+}
+
 /** @brief Load the @p map with strings from @p config
  *
  * If os-release is supported (with KF5 CoreAddons >= 5.58) then
@@ -227,11 +253,7 @@ Branding::Branding( const QString& brandingFilePath, QObject* parent )
             } );
             loadStrings( m_style, doc, "style", []( const QString& s ) -> QString { return s; } );
 
-            const QVariantMap temp = CalamaresUtils::yamlMapToVariant( doc[ "uploadServer" ] );
-            for ( auto it = temp.constBegin(); it != temp.constEnd(); ++it )
-            {
-                m_uploadServer.insert( it.key(), it.value().toString() );
-            }
+            m_uploadServer = uploadServerFromMap( CalamaresUtils::yamlMapToVariant( doc[ "uploadServer" ] ) );
         }
         catch ( YAML::Exception& e )
         {
@@ -292,12 +314,6 @@ Branding::imagePath( Branding::ImageEntry imageEntry ) const
     return m_images.value( s_imageEntryStrings.value( imageEntry ) );
 }
 
-QString
-Branding::uploadServer( Branding::UploadServerEntry uploadServerEntry ) const
-{
-    return m_uploadServer.value( s_uploadServerStrings.value( uploadServerEntry ) );
-}
-
 QPixmap
 Branding::image( Branding::ImageEntry imageEntry, const QSize& size ) const
 {

src/libcalamaresui/Branding.h

@@ -226,7 +226,8 @@ public:
      * This is both the type (which may be none, in which case the URL
      * is irrelevant and usually empty) and the URL for the upload.
      */
-    QPair< UploadServerType, QUrl > uploadServer() const { return m_uploadServer; }
+    using UploadServerInfo = QPair< UploadServerType, QUrl >;
+    UploadServerInfo uploadServer() const { return m_uploadServer; }
 
     /**
      * Creates a map called "branding" in the global storage, and inserts an
@@ -261,7 +262,7 @@ private:
     QMap< QString, QString > m_strings;
     QMap< QString, QString > m_images;
     QMap< QString, QString > m_style;
-    QPair< UploadServerType, QUrl > m_uploadServer;
+    UploadServerInfo m_uploadServer;
 
     /* The slideshow can be done in one of two ways:
      *  - as a sequence of images