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Code Issues Releases Wiki Activity

added comments, reworked a bit, and created warning dialog if some recipients don't have keys saved.

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This commit is contained in:
ashley willis 2011-11-21 01:59:51 -06:00
parent 18ad12eda7
commit 94ba9bf71f
5 changed files with 115 additions and 19 deletions
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4
res/values/strings.xml
View File

@ -61,6 +61,7 @@
<string name="forward_action">Forward</string>
<string name="move_action">Move</string>
<string name="continue_action">Continue</string>
<string name="back_action">Back</string>
<string name="done_action">Done</string> <!-- Used to complete a multi-step process -->
<string name="remove_action">Remove</string>
<string name="discard_action">Discard</string>
@ -1026,6 +1027,9 @@ Welcome to K-9 Mail setup. K-9 is an open source mail client for Android origin
<string name="refuse_to_save_draft_marked_encrypted_dlg_title">Refuse to save draft message.</string>
<string name="refuse_to_save_draft_marked_encrypted_instructions_fmt">Refuse to save draft message marked encrypted.</string>
<string name="continue_without_public_key_dlg_title">Continue without public key?</string>
<string name="continue_without_public_key_instructions_fmt">One or more recipients do not have a saved public key. Continue?</string>
<string name="charset_not_found">This message can\'t be displayed because the charset \"<xliff:g id="charset">%s</xliff:g>\" wasn\'t found.</string>
<string name="select_text_now">Select text to copy.</string>

48
src/com/fsck/k9/activity/MessageCompose.java
View File

@ -81,6 +81,7 @@ import com.fsck.k9.mail.store.LocalStore.LocalAttachmentBody;
public class MessageCompose extends K9Activity implements OnClickListener, OnFocusChangeListener {
private static final int DIALOG_SAVE_OR_DISCARD_DRAFT_MESSAGE = 1;
private static final int DIALOG_REFUSE_TO_SAVE_DRAFT_MARKED_ENCRYPTED = 2;
private static final int DIALOG_CONTINUE_WITHOUT_PUBLIC_KEY = 3;
private static final String ACTION_COMPOSE = "com.fsck.k9.intent.action.COMPOSE";
private static final String ACTION_REPLY = "com.fsck.k9.intent.action.REPLY";
@ -210,6 +211,7 @@ public class MessageCompose extends K9Activity implements OnClickListener, OnFoc
private PgpData mPgpData = null;
private boolean mAutoEncrypt = false;
private boolean mContinueWithoutPublicKey = false;
private String mReferences;
private String mInReplyTo;
@ -444,6 +446,8 @@ public class MessageCompose extends K9Activity implements OnClickListener, OnFoc
public void afterTextChanged(android.text.Editable s) { }
};
// For watching changes to the To:, Cc:, and Bcc: fields for auto-encryption on a matching
// address.
TextWatcher recipientWatcher = new TextWatcher() {
public void beforeTextChanged(CharSequence s, int start, int before, int after) { }
@ -455,10 +459,10 @@ public class MessageCompose extends K9Activity implements OnClickListener, OnFoc
final CryptoProvider crypto = mAccount.getCryptoProvider();
if (mAutoEncrypt && crypto.isAvailable(getApplicationContext())) {
for (Address address : getRecipientAddresses()) {
long ids[] = crypto.getPublicKeyIdsFromEmail(getApplicationContext(),
address.getAddress());
if (ids != null && ids.length > 0) {
if (crypto.hasPublicKeyForEmail(getApplicationContext(),
address.getAddress())) {
mEncryptCheckbox.setChecked(true);
mContinueWithoutPublicKey = false;
break;
}
}
@ -950,6 +954,10 @@ public class MessageCompose extends K9Activity implements OnClickListener, OnFoc
return Address.parseUnencoded(view.getText().toString().trim());
}
/*
* Returns an Address array of recipients this email will be sent to.
* @return Address array of recipients this email will be sent to.
*/
private Address[] getRecipientAddresses() {
String addresses = mToView.getText().toString() + mCcView.getText().toString()
+ mBccView.getText().toString();
@ -1497,20 +1505,20 @@ public class MessageCompose extends K9Activity implements OnClickListener, OnFoc
Toast.makeText(this, getString(R.string.message_compose_error_no_recipients), Toast.LENGTH_LONG).show();
return;
}
final CryptoProvider crypto = mAccount.getCryptoProvider();
if (mEncryptCheckbox.isChecked() && !mPgpData.hasEncryptionKeys()) {
mMessageFormat = MessageFormat.TEXT;
// key selection before encryption
StringBuilder emails = new StringBuilder();
Address[][] addresses = new Address[][] { getAddresses(mToView),
getAddresses(mCcView),
getAddresses(mBccView)
};
for (Address[] addressArray : addresses) {
for (Address address : addressArray) {
for (Address address : getRecipientAddresses()) {
if (emails.length() != 0) {
emails.append(',');
}
emails.append(address.getAddress());
if (!mContinueWithoutPublicKey &&
!crypto.hasPublicKeyForEmail(this, address.getAddress())) {
showDialog(DIALOG_CONTINUE_WITHOUT_PUBLIC_KEY);
return;
}
}
if (emails.length() != 0) {
@ -1519,7 +1527,7 @@ public class MessageCompose extends K9Activity implements OnClickListener, OnFoc
emails.append(mIdentity.getEmail());
mPreventDraftSaving = true;
if (!mAccount.getCryptoProvider().selectEncryptionKeys(MessageCompose.this, emails.toString(), mPgpData)) {
if (!crypto.selectEncryptionKeys(MessageCompose.this, emails.toString(), mPgpData)) {
mPreventDraftSaving = false;
}
return;
@ -1528,7 +1536,7 @@ public class MessageCompose extends K9Activity implements OnClickListener, OnFoc
if (mPgpData.getEncryptedData() == null) {
String text = buildText(false).getText();
mPreventDraftSaving = true;
if (!mAccount.getCryptoProvider().encrypt(this, text, mPgpData)) {
if (!crypto.encrypt(this, text, mPgpData)) {
mPreventDraftSaving = false;
}
return;
@ -2015,6 +2023,24 @@ public class MessageCompose extends K9Activity implements OnClickListener, OnFoc
}
})
.create();
case DIALOG_CONTINUE_WITHOUT_PUBLIC_KEY:
return new AlertDialog.Builder(this)
.setTitle(R.string.continue_without_public_key_dlg_title)
.setMessage(R.string.continue_without_public_key_instructions_fmt)
.setPositiveButton(R.string.continue_action, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
dismissDialog(DIALOG_CONTINUE_WITHOUT_PUBLIC_KEY);
mContinueWithoutPublicKey = true;
onSend();
}
})
.setNegativeButton(R.string.back_action, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
dismissDialog(DIALOG_CONTINUE_WITHOUT_PUBLIC_KEY);
mContinueWithoutPublicKey = false;
}
})
.create();
}
return super.onCreateDialog(id);
}

62
src/com/fsck/k9/crypto/Apg.java
View File

@ -243,11 +243,9 @@ public class Apg extends CryptoProvider {
public long[] getPublicKeyIdsFromEmail(Context context, String email) {
long ids[] = null;
try {
Uri contentUri = Uri.withAppendedPath(Apg.CONTENT_URI_PUBLIC_KEY_RING_BY_EMAILS,
email);
Uri contentUri = Uri.withAppendedPath(Apg.CONTENT_URI_PUBLIC_KEY_RING_BY_EMAILS, email);
Cursor c = context.getContentResolver().query(contentUri,
new String[] { "master_key_id" },
null, null, null);
new String[] { "master_key_id" }, null, null, null);
if (c != null && c.getCount() > 0) {
ids = new long[c.getCount()];
while (c.moveToNext()) {
@ -267,6 +265,62 @@ public class Apg extends CryptoProvider {
return ids;
}
/**
* Find out if a given email has a secret key.
*
* @param context
* @param email The email in question.
* @return true if there is a secret key for this email.
*/
@Override
public boolean hasSecretKeyForEmail(Context context, String email) {
try {
Uri contentUri = Uri.withAppendedPath(Apg.CONTENT_URI_SECRET_KEY_RING_BY_EMAILS, email);
Cursor c = context.getContentResolver().query(contentUri,
new String[] { "master_key_id" }, null, null, null);
if (c != null && c.getCount() > 0) {
c.close();
return true;
}
if (c != null) {
c.close();
}
} catch (SecurityException e) {
Toast.makeText(context,
context.getResources().getString(R.string.insufficient_apg_permissions),
Toast.LENGTH_LONG).show();
}
return false;
}
/**
* Find out if a given email has a public key.
*
* @param context
* @param email The email in question.
* @return true if there is a public key for this email.
*/
@Override
public boolean hasPublicKeyForEmail(Context context, String email) {
try {
Uri contentUri = Uri.withAppendedPath(Apg.CONTENT_URI_PUBLIC_KEY_RING_BY_EMAILS, email);
Cursor c = context.getContentResolver().query(contentUri,
new String[] { "master_key_id" }, null, null, null);
if (c != null && c.getCount() > 0) {
c.close();
return true;
}
if (c != null) {
c.close();
}
} catch (SecurityException e) {
Toast.makeText(context,
context.getResources().getString(R.string.insufficient_apg_permissions),
Toast.LENGTH_LONG).show();
}
return false;
}
/**
* Get the user id based on the key id.
*

2
src/com/fsck/k9/crypto/CryptoProvider.java
View File

@ -25,6 +25,8 @@ abstract public class CryptoProvider {
abstract public boolean decrypt(Activity activity, String data, PgpData pgpData);
abstract public long[] getSecretKeyIdsFromEmail(Context context, String email);
abstract public long[] getPublicKeyIdsFromEmail(Context context, String email);
abstract public boolean hasSecretKeyForEmail(Context context, String email);
abstract public boolean hasPublicKeyForEmail(Context context, String email);
abstract public String getUserId(Context context, long keyId);
abstract public String getName();
abstract public boolean test(Context context);

10
src/com/fsck/k9/crypto/None.java
View File

@ -42,6 +42,16 @@ public class None extends CryptoProvider {
return null;
}
@Override
public boolean hasSecretKeyForEmail(Context context, String email) {
return false;
}
@Override
public boolean hasPublicKeyForEmail(Context context, String email) {
return false;
}
@Override
public String getUserId(Context context, long keyId) {
return null;