package org.openqa.selenium.firefox.internal;
import org.openqa.selenium.Platform;
import org.openqa.selenium.WebDriverException;
import org.openqa.selenium.remote.internal.CircularOutputStream;
import java.io.File;
import java.io.OutputStream;
import java.util.Map;
/**
* Wrapper around our runtime environment requirements.
* Performs discovery of firefox instances.
*
* <p>NOTE: System and platform binaries will only be discovered at class initialization.
*
* @author gregory.block@google.com (Gregory Block)
*/
public class Executable {
private static final File SYSTEM_BINARY = locateFirefoxBinaryFromSystemProperty();
private static final File PLATFORM_BINARY = locateFirefoxBinaryFromPlatform();
private final File binary;
public Executable(File userSpecifiedBinaryPath) {
if (userSpecifiedBinaryPath != null) {
// It should exist and be a file.
if (userSpecifiedBinaryPath.exists() && userSpecifiedBinaryPath.isFile()) {
binary = userSpecifiedBinaryPath;
return;
}
throw new WebDriverException(
"Specified firefox binary location does not exist or is not a real file: " +
userSpecifiedBinaryPath);
}
if (SYSTEM_BINARY != null && SYSTEM_BINARY.exists()) {
binary = SYSTEM_BINARY;
return;
}
if (PLATFORM_BINARY != null && PLATFORM_BINARY.exists()) {
binary = PLATFORM_BINARY;
return;
}
throw new WebDriverException("Cannot find firefox binary in PATH. " +
"Make sure firefox is installed. OS appears to be: " + Platform.getCurrent());
}
public File getFile() {
return binary;
}
public String getPath() {
return binary.getAbsolutePath();
}
public void setLibraryPath(ProcessBuilder builder, Map<String, String> extraEnv) {
final String propertyName = getLibraryPathPropertyName();
StringBuilder libraryPath = new StringBuilder();
// If we have an env var set for the path, use it.
String env = getEnvVar(propertyName, null);
if (env != null) {
libraryPath.append(env).append(File.pathSeparator);
}
// Check our extra env vars for the same var, and use it too.
env = extraEnv.get(propertyName);
if (env != null) {
libraryPath.append(env).append(File.pathSeparator);
}
// Last, add the contents of the specified system property, defaulting to the binary's path.
// On Snow Leopard, beware of problems the sqlite library
String firefoxLibraryPath = System.getProperty("webdriver.firefox.library.path",
binary.getParentFile().getAbsolutePath());
if (Platform.getCurrent().is(Platform.MAC) && Platform.getCurrent().getMinorVersion() > 5) {
libraryPath.append(libraryPath).append(File.pathSeparator);
} else {
libraryPath.append(firefoxLibraryPath).append(File.pathSeparator).append(libraryPath);
}
// Add the library path to the builder.
builder.environment().put(propertyName, libraryPath.toString());
}
/**
* Locates the firefox binary from a system property. Will throw an exception if the binary
* cannot be found.
*/
private static File locateFirefoxBinaryFromSystemProperty() {
String binaryName = System.getProperty("webdriver.firefox.bin");
if (binaryName == null)
return null;
File binary = new File(binaryName);
if (binary.exists())
return binary;
switch (Platform.getCurrent()) {
case WINDOWS:
case VISTA:
case XP:
if (!binaryName.endsWith(".exe"))
binaryName += ".exe";
break;
case MAC:
if (!binaryName.endsWith(".app"))
binaryName += ".app";
binaryName += "/Contents/MacOS/firefox-bin";
break;
default:
// Fall through
}
binary = new File(binaryName);
if (binary.exists())
return binary;
throw new WebDriverException(
String.format(
"\"webdriver.firefox.bin\" property set, but unable to locate the requested binary: %s",
binaryName
));
}
/**
* Locates the firefox binary by platform.
*/
private static File locateFirefoxBinaryFromPlatform() {
File binary = null;
switch (Platform.getCurrent()) {
case WINDOWS:
case VISTA:
case XP:
binary = new File(getEnvVar("PROGRAMFILES", "\\Program Files") + "\\Mozilla Firefox\\firefox.exe");
if (!binary.exists()) {
binary = new File("/Program Files (x86)/Mozilla Firefox/firefox.exe");
}
break;
case MAC:
binary = new File("/Applications/Firefox.app/Contents/MacOS/firefox-bin");
break;
default:
// Do nothing
}
return binary != null && binary.exists() ? binary : findBinary("firefox3", "firefox2", "firefox");
}
/**
* Retrieve an env var; if no var is set, returns the default
*
* @param name the name of the variable
* @param defaultValue the default value of the variable
* @return the env var
*/
private static String getEnvVar(String name, String defaultValue) {
final String value = System.getenv(name);
if (value != null) {
return value;
}
return defaultValue;
}
/**
* Retrieves the platform specific env property name which contains the library path.
*/
private static String getLibraryPathPropertyName() {
switch (Platform.getCurrent()) {
case MAC:
return "DYLD_LIBRARY_PATH";
case WINDOWS:
case VISTA:
case XP:
return "PATH";
default:
return "LD_LIBRARY_PATH";
}
}
/**
* Walk a PATH to locate binaries with a specified name. Binaries will be searched for in the
* order they are provided.
*
* @param binaryNames the binary names to search for
* @return the first binary found matching that name.
*/
private static File findBinary(String... binaryNames) {
final String[] paths = System.getenv("PATH").split(File.pathSeparator);
for (String binaryName : binaryNames) {
for (String path : paths) {
File file = new File(path, binaryName);
if (file.exists() && !file.isDirectory()) {
return file;
}
if (Platform.getCurrent().is(Platform.WINDOWS)) {
File exe = new File(path, binaryName + ".exe");
if (exe.exists() && !exe.isDirectory()) {
return exe;
}
}
}
}
return null;
}
public OutputStream getDefaultOutputStream() {
String firefoxLogFile = System.getProperty("webdriver.firefox.logfile");
File logFile = firefoxLogFile == null ? null : new File(firefoxLogFile);
return new CircularOutputStream(logFile);
}
}