JAL-3633 Memory only proxy auth password storage. Open Preferences->Connection tab...
[jalview.git] / src / jalview / bin / Cache.java
index f4b4aac..6435287 100755 (executable)
  */
 package jalview.bin;
 
-import jalview.datamodel.PDBEntry;
-import jalview.gui.UserDefinedColours;
-import jalview.schemes.ColourSchemeLoader;
-import jalview.schemes.ColourSchemes;
-import jalview.schemes.UserColourScheme;
-import jalview.structure.StructureImportSettings;
-import jalview.urls.IdOrgSettings;
-import jalview.util.ColorUtils;
-import jalview.ws.sifts.SiftsSettings;
-
 import java.awt.Color;
 import java.io.BufferedReader;
 import java.io.File;
@@ -37,6 +27,10 @@ import java.io.FileInputStream;
 import java.io.FileOutputStream;
 import java.io.InputStream;
 import java.io.InputStreamReader;
+import java.io.PrintWriter;
+import java.io.StringWriter;
+import java.net.Authenticator;
+import java.net.PasswordAuthentication;
 import java.text.DateFormat;
 import java.text.SimpleDateFormat;
 import java.util.Collections;
@@ -46,12 +40,29 @@ import java.util.Locale;
 import java.util.Properties;
 import java.util.StringTokenizer;
 import java.util.TreeSet;
+import java.util.regex.Pattern;
+
+import javax.swing.LookAndFeel;
+import javax.swing.UIManager;
 
 import org.apache.log4j.ConsoleAppender;
 import org.apache.log4j.Level;
 import org.apache.log4j.Logger;
 import org.apache.log4j.SimpleLayout;
 
+import jalview.datamodel.PDBEntry;
+import jalview.gui.Preferences;
+import jalview.gui.UserDefinedColours;
+import jalview.jbgui.GPreferences;
+import jalview.schemes.ColourSchemeLoader;
+import jalview.schemes.ColourSchemes;
+import jalview.schemes.UserColourScheme;
+import jalview.structure.StructureImportSettings;
+import jalview.urls.IdOrgSettings;
+import jalview.util.ColorUtils;
+import jalview.util.MessageManager;
+import jalview.ws.sifts.SiftsSettings;
+
 /**
  * Stores and retrieves Jalview Application Properties Lists and fields within
  * list entries are separated by '|' symbols unless otherwise stated (|) clauses
@@ -263,6 +274,28 @@ public class Cache
    */
   public static Logger log;
 
+  // save the proxy properties set at startup
+  public final static String[] startupProxyProperties = {
+      System.getProperty("http.proxyHost"),
+      System.getProperty("http.proxyPort"),
+      System.getProperty("https.proxyHost"),
+      System.getProperty("https.proxyPort"),
+      System.getProperty("http.proxyUser"),
+      System.getProperty("http.proxyPassword"),
+      System.getProperty("https.proxyUser"),
+      System.getProperty("https.proxyPassword"),
+      System.getProperty("http.nonProxyHosts") };
+
+  public final static String PROXYTYPE_NONE = "none";
+
+  // "false" and "true" for backward compatibility
+  public final static String PROXYTYPE_SYSTEM = "false";
+
+  public final static String PROXYTYPE_CUSTOM = "true";
+
+  // in-memory only storage of proxy password, safer to use char array
+  public static char[] proxyAuthPassword = null;
+
   /** Jalview Properties */
   public static Properties applicationProperties = new Properties()
   {
@@ -373,16 +406,34 @@ public class Cache
       System.out.println("Error reading properties file: " + ex);
     }
 
-    if (getDefault("USE_PROXY", false))
+    // PROXY TYPE settings (now three options "none", "false", "true", but using
+    // backward compatible strings)
+    String proxyType = getDefault("USE_PROXY", PROXYTYPE_SYSTEM);
+    // default to upgrading old settings
+    switch (proxyType)
     {
-      String proxyServer = getDefault("PROXY_SERVER", ""),
-              proxyPort = getDefault("PROXY_PORT", "8080");
-
-      System.out.println("Using proxyServer: " + proxyServer
-              + " proxyPort: " + proxyPort);
-
-      System.setProperty("http.proxyHost", proxyServer);
-      System.setProperty("http.proxyPort", proxyPort);
+    case PROXYTYPE_NONE:
+      clearProxyProperties();
+      break;
+    case PROXYTYPE_SYSTEM: // use system settings
+      resetProxyProperties();
+      break;
+    case PROXYTYPE_CUSTOM: // use specified proxy settings
+      String httpHost = getDefault("PROXY_SERVER", "");
+      String httpPort = getDefault("PROXY_PORT", "8080");
+      String httpsHost = getDefault("PROXY_SERVER_HTTPS", httpHost);
+      String httpsPort = getDefault("PROXY_PORT_HTTPS", httpPort);
+      String httpUser = getDefault("PROXY_AUTH_USER", null);
+      // https.proxyUser and https.proxyPassword are not able to be
+      // independently set in Preferences yet (or http.nonProxyHosts)
+      String httpsUser = getDefault("PROXY_AUTH_USER_HTTPS", httpUser);
+      setProxyProperties(httpHost, httpPort, httpsHost, httpsPort, httpUser,
+              proxyAuthPassword, httpsUser, proxyAuthPassword, "localhost");
+      break;
+    default:
+      String message = "Incorrect PROXY_TYPE - should be 'none' (clear proxy properties), 'false' (system settings), 'true' (custom settings): "
+              + proxyType;
+      Cache.warn(message);
     }
 
     // LOAD THE AUTHORS FROM THE authors.props file
@@ -435,8 +486,8 @@ public class Cache
 
     String jnlpVersion = System.getProperty("jalview.version");
 
-    // jnlpVersion will be null if a latest version check for the channel needs to
-    // be done
+    // jnlpVersion will be null if a latest version check for the channel needs
+    // to be done
     // Dont do this check if running in headless mode
 
     if (jnlpVersion == null && getDefault("VERSION_CHECK", true)
@@ -555,8 +606,8 @@ public class Cache
     new BuildDetails(codeVersion, null, codeInstallation);
     if (printV && reportVersion)
     {
-      System.out
-            .println("Jalview Version: " + codeVersion + codeInstallation);
+      System.out.println(
+              "Jalview Version: " + codeVersion + codeInstallation);
     }
   }
 
@@ -1075,31 +1126,73 @@ public class Cache
   }
 
   /**
+   * Initial logging information helper for various versions output
+   * 
+   * @param prefix
+   * @param value
+   * @param defaultValue
+   */
+  private static void appendIfNotNull(StringBuilder sb, String prefix,
+          String value, String suffix, String defaultValue)
+  {
+    if (value == null && defaultValue == null)
+    {
+      return;
+    }
+    String line = prefix + (value != null ? value : defaultValue) + suffix;
+    sb.append(line);
+  }
+
+  /**
    * 
    * @return Jalview version, build details and JVM platform version for console
    */
   public static String getVersionDetailsForConsole()
   {
-    return "Jalview Version: "
-            + jalview.bin.Cache.getDefault("VERSION", "TEST")
-            + "\n" + "Jalview Installation: "
-            + jalview.bin.Cache.getDefault("INSTALLATION",
-                    "unknown")
-            + "\n" + "Build Date: "
-            + jalview.bin.Cache.getDefault("BUILD_DATE", "unknown")
-            + "\n" + "Java version: "
-            + System.getProperty("java.version") + "\n"
-            + System.getProperty("os.arch") + " "
-            + System.getProperty("os.name") + " "
-            + System.getProperty("os.version")
-            + (jalview.bin.Cache.getDefault("VERSION", "TEST")
-                    .equals("DEVELOPMENT")
-                            ? "\nJava path:"
-                                    + System.getProperty(
-                                            "java.home")
-                                    + File.separator + "bin"
-                                    + File.separator + "java"
-                            : "");
+    StringBuilder sb = new StringBuilder();
+    sb.append("Jalview Version: ");
+    sb.append(jalview.bin.Cache.getDefault("VERSION", "TEST"));
+    sb.append("\n");
+    sb.append("Jalview Installation: ");
+    sb.append(jalview.bin.Cache.getDefault("INSTALLATION", "unknown"));
+    sb.append("\n");
+    sb.append("Build Date: ");
+    sb.append(jalview.bin.Cache.getDefault("BUILD_DATE", "unknown"));
+    sb.append("\n");
+    sb.append("Java version: ");
+    sb.append(System.getProperty("java.version"));
+    sb.append("\n");
+    sb.append(System.getProperty("os.arch"));
+    sb.append(" ");
+    sb.append(System.getProperty("os.name"));
+    sb.append(" ");
+    sb.append(System.getProperty("os.version"));
+    sb.append("\n");
+    appendIfNotNull(sb, "Install4j version: ",
+            System.getProperty("sys.install4jVersion"), "\n", null);
+    appendIfNotNull(sb, "Install4j template version: ",
+            System.getProperty("installer_template_version"), "\n", null);
+    appendIfNotNull(sb, "Launcher version: ",
+            System.getProperty("launcher_version"), "\n", null);
+    LookAndFeel laf = UIManager.getLookAndFeel();
+    String lafName = laf == null ? "Not obtained" : laf.getName();
+    String lafClass = laf == null ? "unknown" : laf.getClass().getName();
+    sb.append("LookAndFeel: ");
+    sb.append(lafName);
+    sb.append(" (");
+    sb.append(lafClass);
+    sb.append(")\n");
+    // Not displayed in release version ( determined by possible version number
+    // regex 9[9.]*9[.-_a9]* )
+    if (Pattern.matches("^\\d[\\d\\.]*\\d[\\.\\-\\w]*$",
+            jalview.bin.Cache.getDefault("VERSION", "TEST")))
+    {
+      appendIfNotNull(sb, "Getdown appdir: ",
+              System.getProperty("getdownappdir"), "\n", null);
+      appendIfNotNull(sb, "Java home: ", System.getProperty("java.home"),
+              "\n", "unknown");
+    }
+    return sb.toString();
   }
 
   /**
@@ -1112,4 +1205,229 @@ public class Cache
     // eg 'built from Source' or update channel
     return jalview.bin.Cache.getDefault("INSTALLATION", "unknown");
   }
+
+  public static String getStackTraceString(Throwable t)
+  {
+    StringWriter sw = new StringWriter();
+    PrintWriter pw = new PrintWriter(sw);
+    t.printStackTrace(pw);
+    return sw.toString();
+  }
+
+  // proxy properties methods
+  public static void clearProxyProperties()
+  {
+    setProxyProperties(null, null, null, null, null, null, null, null,
+            null);
+  }
+
+  public static void resetProxyProperties()
+  {
+    setProxyProperties(startupProxyProperties[0], startupProxyProperties[1],
+            startupProxyProperties[2], startupProxyProperties[3],
+            startupProxyProperties[4],
+            startupProxyProperties[5].toCharArray(),
+            startupProxyProperties[6],
+            startupProxyProperties[7].toCharArray(),
+            startupProxyProperties[8]);
+    StringBuilder sb = new StringBuilder();
+    sb.append("Setting proxy properties to: http.proxyHost=")
+            .append(startupProxyProperties[0]).append(", http.proxyPort=")
+            .append(startupProxyProperties[1])
+            .append(startupProxyProperties[4] != null
+                    && !startupProxyProperties[4].isEmpty()
+                            ? " [" + startupProxyProperties[4] + "]"
+                            : "")
+            .append(", https.proxyHost=").append(startupProxyProperties[2])
+            .append(", https.proxyPort=").append(startupProxyProperties[3])
+            .append(startupProxyProperties[6] != null
+                    && !startupProxyProperties[6].isEmpty()
+                            ? " [" + startupProxyProperties[6] + "]"
+                            : "");
+
+    Cache.debug(sb.toString());
+  }
+
+  public static void setProxyProperties(String httpHost, String httpPort,
+          String httpsHost, String httpsPort, String httpUser,
+          char[] httpPassword, String httpsUser, char[] httpsPassword,
+          String nonProxyHosts)
+  {
+    setOrClearSystemProperty("http.proxyHost", httpHost);
+    setOrClearSystemProperty("http.proxyPort", httpPort);
+    setOrClearSystemProperty("https.proxyHost", httpsHost);
+    setOrClearSystemProperty("https.proxyPort", httpsPort);
+    setOrClearSystemProperty("http.proxyUser", httpUser);
+    setOrClearSystemProperty("http.proxyPassword", httpPassword);
+    setOrClearSystemProperty("https.proxyUser", httpsUser);
+    setOrClearSystemProperty("https.proxyPassword", httpsPassword);
+    // are we using a custom proxy (password prompt might be required)?
+    boolean customProxySet = getDefault("USE_PROXY", PROXYTYPE_SYSTEM)
+            .equals(PROXYTYPE_CUSTOM);
+    if (httpUser != null || httpsUser != null)
+    {
+      try
+      {
+        Authenticator.setDefault(new Authenticator()
+        {
+          @Override
+          protected PasswordAuthentication getPasswordAuthentication()
+          {
+            if (getRequestorType() == RequestorType.PROXY)
+            {
+              String scheme = getRequestingScheme();
+              boolean needProxyPasswordSet = false;
+              if (customProxySet &&
+              // we have a username but no password for the scheme being
+              // requested
+              (scheme.equalsIgnoreCase("http")
+                      && (httpUser != null && httpUser.length() > 0
+                              && (httpPassword == null
+                                      || httpPassword.length == 0)))
+                      || (scheme.equalsIgnoreCase("https")
+                              && (httpsUser != null
+                                      && httpsUser.length() > 0
+                                      && (httpsPassword == null
+                                              || httpsPassword.length == 0))))
+              {
+                // open Preferences -> Connections
+                String message = MessageManager
+                        .getString("label.proxy_password_required");
+                openPreferencesConnectionsForProxyPassword(message);
+              }
+              else
+              {
+                try
+                {
+                  if (scheme.equalsIgnoreCase("http")
+                          && getRequestingHost().equalsIgnoreCase(httpHost)
+                          && getRequestingPort() == Integer
+                                  .valueOf(httpPort))
+                  {
+                    return new PasswordAuthentication(httpUser,
+                            httpPassword);
+                  }
+                  if (scheme.equalsIgnoreCase("https")
+                          && getRequestingHost().equalsIgnoreCase(httpsHost)
+                          && getRequestingPort() == Integer
+                                  .valueOf(httpsPort))
+                  {
+                    return new PasswordAuthentication(httpsUser,
+                            httpsPassword);
+                  }
+                } catch (NumberFormatException e)
+                {
+                  Cache.error("Problem with proxy port values [http:"
+                          + httpPort + ", https:" + httpsPort + "]");
+                }
+              }
+            }
+            // non proxy request
+            return null;
+          }
+        });
+        // required to re-enable basic authentication (should be okay for a
+        // local proxy)
+        System.setProperty("jdk.http.auth.tunneling.disabledSchemes", "");
+      } catch (SecurityException e)
+      {
+        Cache.error("Could not set default Authenticator");
+        Cache.debug(getStackTraceString(e));
+      }
+    }
+    else
+    {
+      // reset the Authenticator to protect http.proxyUser and
+      // http.proxyPassword Just In Case
+      Authenticator.setDefault(null);
+    }
+
+    // nonProxyHosts not currently configurable in Preferences
+    setOrClearSystemProperty("http.nonProxyHosts", nonProxyHosts);
+  }
+
+  private static void openPreferencesConnectionsForProxyPassword(
+          String message)
+  {
+    //
+    Cache.info("Opening Preferences for proxy password");
+    // Desktop.instance.preferences_actionPerformed(null);
+    Preferences p = new Preferences(GPreferences.CONNECTIONS_TAB);
+    p.grabFocus();
+  }
+
+  public static void setOrClearSystemProperty(String key, char[] value)
+  {
+    setOrClearSystemProperty(key,
+            (value == null) ? null : value.toString());
+  }
+
+  public static void setOrClearSystemProperty(String key, String value)
+  {
+    if (key == null)
+    {
+      return;
+    }
+    if (value == null)
+    {
+      System.clearProperty(key);
+    }
+    else
+    {
+      System.setProperty(key, value);
+    }
+  }
+
+  public final static int DEBUG = 10;
+
+  public final static int INFO = 20;
+
+  public final static int WARN = 30;
+
+  public final static int ERROR = 40;
+
+  public static boolean println(int level, String message)
+  {
+    if (Cache.log == null)
+    {
+      if (level >= ERROR)
+        System.err.println(message);
+      else
+        System.out.println(message);
+      return false;
+    }
+    if (level >= WARN)
+    {
+      Cache.log.warn(message);
+    }
+    else if (level >= INFO)
+    {
+      Cache.log.info(message);
+    }
+    else
+    {
+      Cache.log.debug(message);
+    }
+    return true;
+  }
+
+  public static void debug(String message)
+  {
+    println(DEBUG, message);
+  }
+
+  public static void info(String message)
+  {
+    println(INFO, message);
+  }
+
+  public static void warn(String message)
+  {
+    println(WARN, message);
+  }
+
+  public static void error(String message)
+  {
+    println(ERROR, message);
+  }
 }