java - Eclipse RCP 应用程序 - 创建首选项页面条目，该条目已加密保存

Question

我发现可以为我的 Eclipse 3.7 RCP 应用程序创建首选项页面。
描述了如何做到这一点 here .

问题:
是否可以在首选页面中添加一个输入字段，该字段将被保存在安全存储中加密？

到目前为止，我只找到了一种以编程方式使用安全存储的方法。
这不是我的解决方案，因为首选项页面条目是自动保存的。

解决方案:我做到了，Tonny Madsen 对他说:

• 扩展了 SecureIPreferenceStore 类，这是一个 IPreferenceStore。
• 使用 ISecurePreferences 类型的私有(private)变量使新类将所有首选项存储在安全存储中
• 将新类设置为首选项页面的 PreferenceStore

ScopedPreferenceStore 的扩展

public class SecureIPreferenceStore extends ScopedPreferenceStore {<p></p>

<p>/* Current class will override all storage and loading methods, using this secure preferenceStore, to store all preferences in an encrypted way. */ 
    private static final ISecurePreferences SECURE_PREFERENCES = SecurePreferencesFactory.getDefault();</p>

<p>/**
* Use this class to retrieve an instance of  {@code SecureIPreferenceStore}, which will store all preferences in the default secure storage.
 * 
 * @param context - the scope to store to, e.g. {@link org.eclipse.core.runtime.preferences.ConfigurationScope ConfigurationScope} 
 * or {@link org.eclipse.core.runtime.preferences.InstanceScope InstanceScope}
 * 
* @param qualifier - the qualifier to look up the preference node. An example of a qualifier would be the plug-in identifier that the preference is associated with,
* (e.g. the "org.eclipse.core.resources" uses the preference node in the instance scope where the preferences for "org.eclipse.core.resources" are stored)
*/
public SecureIPreferenceStore(IScopeContext context, String qualifier){
        super(context, qualifier);
}</p>

<p>@Override
public void setValue(String name, boolean value) {
    try {
        SECURE_PREFERENCES.putBoolean(name, value, true);
    } catch (StorageException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
}</p>

<p>@Override
public void setValue(String name, double value) {
    try {
        SECURE_PREFERENCES.putDouble(name, value, true);
    } catch (StorageException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
}</p>

<p>@Override
public void setValue(String name, float value) {
    try {
        SECURE_PREFERENCES.putFloat(name, value, true);
    } catch (StorageException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
}</p>

<p>@Override
public void setValue(String name, int value) {
    try {
        SECURE_PREFERENCES.putInt(name, value, true);
    } catch (StorageException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
}</p>

<p>@Override
public void setValue(String name, long value) {
    try {
        SECURE_PREFERENCES.putLong(name, value, true);
    } catch (StorageException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
}</p>

<p>@Override
public void setValue(String name, String value) {
    try {
        SECURE_PREFERENCES.put(name, value, true);
    } catch (StorageException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
}</p>

<p>@Override
public boolean getBoolean(String name) {
    Boolean result = false;
    try {
        result = SECURE_PREFERENCES.getBoolean(name, result);
    } catch (StorageException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    return result;
}</p>

<p>@Override
public double getDouble(String name) {
    Double result = 0.0;
    try {
        result = SECURE_PREFERENCES.getDouble(name, result);
    } catch (StorageException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    return result;
}</p>

<p>@Override
public float getFloat(String name) {
    Float result = 0.0f;
    try {
        result = SECURE_PREFERENCES.getFloat(name, result);
    } catch (StorageException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    return result;
}</p>

<p>@Override
public int getInt(String name) {
    int result = 0;
    try {
        result = SECURE_PREFERENCES.getInt(name, result);
    } catch (StorageException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    return result;
}</p>

<p>@Override
public long getLong(String name) {
    Long result = 0L;
    try {
        result = SECURE_PREFERENCES.getLong(name, result);
    } catch (StorageException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    return result;
}
}
</p>

FieldEditorPreferencePage 中新类的用法:

    @Override
    public void init(IWorkbench workbench) {
        setPreferenceStore(
                new SecureIPreferenceStore(ConfigurationScope.INSTANCE, 
                        "de.vogella.rcp.preferences.secure") );
        setDescription("A demonstration of a preference page implementation");
    }

Answer 1

我没试过，但是...

我会添加自己的 IPreferenceStore 用于安全存储，然后在首选项页面中使用常用的 FieldEditors。

执行此操作的最简单方法是子类化 ScopedPreferenceStore 覆盖 getStorePreferences() 以返回新的 IEclipsePreferences。这可能是 EclipsePreferences 的子类，它覆盖了各种 internal...(...) 方法以连接到 ISecurePreferences。鉴于内部方法与 ISecurePreferences 的方法非常匹配，这可能不会非常困难:-)