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k-9/k9mail-library/src/main/java/com/fsck/k9/mail/Address.java
2014-12-20 01:31:33 +01:00

324 lines
10 KiB
Java

package com.fsck.k9.mail;
import java.util.ArrayList;
import java.util.List;
import java.util.regex.Pattern;
import org.apache.james.mime4j.MimeException;
import org.apache.james.mime4j.codec.EncoderUtil;
import org.apache.james.mime4j.dom.address.Mailbox;
import org.apache.james.mime4j.dom.address.MailboxList;
import org.apache.james.mime4j.field.address.AddressBuilder;
import android.text.TextUtils;
import android.text.util.Rfc822Token;
import android.text.util.Rfc822Tokenizer;
import android.util.Log;
import static com.fsck.k9.mail.K9MailLib.LOG_TAG;
public class Address {
private static final Pattern ATOM = Pattern.compile("^(?:[a-zA-Z0-9!#$%&'*+\\-/=?^_`{|}~]|\\s)+$");
/**
* Immutable empty {@link Address} array
*/
private static final Address[] EMPTY_ADDRESS_ARRAY = new Address[0];
private String mAddress;
private String mPersonal;
public Address(Address address) {
mAddress = address.mAddress;
mPersonal = address.mPersonal;
}
public Address(String address, String personal) {
this(address, personal, true);
}
public Address(String address) {
this(address, null, true);
}
private Address(String address, String personal, boolean parse) {
if (parse) {
Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(address);
if (tokens.length > 0) {
Rfc822Token token = tokens[0];
mAddress = token.getAddress();
String name = token.getName();
if (!TextUtils.isEmpty(name)) {
/*
* Don't use the "personal" argument if "address" is of the form:
* James Bond <james.bond@mi6.uk>
*
* See issue 2920
*/
mPersonal = name;
} else {
mPersonal = (personal == null) ? null : personal.trim();
}
} else {
// This should be an error
}
} else {
mAddress = address;
mPersonal = personal;
}
}
public String getAddress() {
return mAddress;
}
public String getHostname() {
int hostIdx = mAddress.lastIndexOf("@");
if (hostIdx == -1) {
return null;
}
return mAddress.substring(hostIdx+1);
}
public void setAddress(String address) {
this.mAddress = address;
}
public String getPersonal() {
return mPersonal;
}
public void setPersonal(String personal) {
if ("".equals(personal)) {
personal = null;
}
if (personal != null) {
personal = personal.trim();
}
this.mPersonal = personal;
}
/**
* Parse a comma separated list of email addresses in human readable format and return an
* array of Address objects, RFC-822 encoded.
*
* @param addressList
* @return An array of 0 or more Addresses.
*/
public static Address[] parseUnencoded(String addressList) {
List<Address> addresses = new ArrayList<Address>();
if (!TextUtils.isEmpty(addressList)) {
Rfc822Token[] tokens = Rfc822Tokenizer.tokenize(addressList);
for (Rfc822Token token : tokens) {
String address = token.getAddress();
if (!TextUtils.isEmpty(address)) {
addresses.add(new Address(token.getAddress(), token.getName(), false));
}
}
}
return addresses.toArray(EMPTY_ADDRESS_ARRAY);
}
/**
* Parse a comma separated list of addresses in RFC-822 format and return an
* array of Address objects.
*
* @param addressList
* @return An array of 0 or more Addresses.
*/
public static Address[] parse(String addressList) {
if (TextUtils.isEmpty(addressList)) {
return EMPTY_ADDRESS_ARRAY;
}
List<Address> addresses = new ArrayList<Address>();
try {
MailboxList parsedList = AddressBuilder.DEFAULT.parseAddressList(addressList).flatten();
for (int i = 0, count = parsedList.size(); i < count; i++) {
org.apache.james.mime4j.dom.address.Address address = parsedList.get(i);
if (address instanceof Mailbox) {
Mailbox mailbox = (Mailbox)address;
addresses.add(new Address(mailbox.getLocalPart() + "@" + mailbox.getDomain(), mailbox.getName(), false));
} else {
Log.e(LOG_TAG, "Unknown address type from Mime4J: "
+ address.getClass().toString());
}
}
} catch (MimeException pe) {
Log.e(LOG_TAG, "MimeException in Address.parse()", pe);
//but we do an silent failover : we just use the given string as name with empty address
addresses.add(new Address(null, addressList, false));
}
return addresses.toArray(EMPTY_ADDRESS_ARRAY);
}
@Override
public boolean equals(Object o) {
if (o instanceof Address) {
Address other = (Address) o;
if (mPersonal != null && other.mPersonal != null && !mPersonal.equals(other.mPersonal)) {
return false;
}
return mAddress.equals(other.mAddress);
}
return super.equals(o);
}
@Override
public int hashCode() {
int hash = mAddress.hashCode();
if (mPersonal != null) {
hash += 3 * mPersonal.hashCode();
}
return hash;
}
@Override
public String toString() {
if (!TextUtils.isEmpty(mPersonal)) {
return quoteAtoms(mPersonal) + " <" + mAddress + ">";
} else {
return mAddress;
}
}
public static String toString(Address[] addresses) {
if (addresses == null) {
return null;
}
return TextUtils.join(", ", addresses);
}
public String toEncodedString() {
if (!TextUtils.isEmpty(mPersonal)) {
return EncoderUtil.encodeAddressDisplayName(mPersonal) + " <" + mAddress + ">";
} else {
return mAddress;
}
}
public static String toEncodedString(Address[] addresses) {
if (addresses == null) {
return null;
}
StringBuilder sb = new StringBuilder();
for (int i = 0; i < addresses.length; i++) {
sb.append(addresses[i].toEncodedString());
if (i < addresses.length - 1) {
sb.append(',');
}
}
return sb.toString();
}
/**
* Unpacks an address list previously packed with packAddressList()
* @param addressList Packed address list.
* @return Unpacked list.
*/
public static Address[] unpack(String addressList) {
if (addressList == null) {
return new Address[] { };
}
List<Address> addresses = new ArrayList<Address>();
int length = addressList.length();
int pairStartIndex = 0;
int pairEndIndex = 0;
int addressEndIndex = 0;
while (pairStartIndex < length) {
pairEndIndex = addressList.indexOf(",\u0000", pairStartIndex);
if (pairEndIndex == -1) {
pairEndIndex = length;
}
addressEndIndex = addressList.indexOf(";\u0000", pairStartIndex);
String address = null;
String personal = null;
if (addressEndIndex == -1 || addressEndIndex > pairEndIndex) {
address = addressList.substring(pairStartIndex, pairEndIndex);
} else {
address = addressList.substring(pairStartIndex, addressEndIndex);
personal = addressList.substring(addressEndIndex + 2, pairEndIndex);
}
addresses.add(new Address(address, personal, false));
pairStartIndex = pairEndIndex + 2;
}
return addresses.toArray(new Address[addresses.size()]);
}
/**
* Packs an address list into a String that is very quick to read
* and parse. Packed lists can be unpacked with unpackAddressList()
* The packed list is a ",\u0000" separated list of:
* address;\u0000personal
* @param addresses Array of addresses to pack.
* @return Packed addresses.
*/
public static String pack(Address[] addresses) {
if (addresses == null) {
return null;
}
StringBuilder sb = new StringBuilder();
for (int i = 0, count = addresses.length; i < count; i++) {
Address address = addresses[i];
sb.append(address.getAddress());
String personal = address.getPersonal();
if (personal != null) {
sb.append(";\u0000");
// Escape quotes in the address part on the way in
personal = personal.replaceAll("\"", "\\\"");
sb.append(personal);
}
if (i < count - 1) {
sb.append(",\u0000");
}
}
return sb.toString();
}
/**
* Quote a string, if necessary, based upon the definition of an "atom," as defined by RFC2822
* (http://tools.ietf.org/html/rfc2822#section-3.2.4). Strings that consist purely of atoms are
* left unquoted; anything else is returned as a quoted string.
* @param text String to quote.
* @return Possibly quoted string.
*/
public static String quoteAtoms(final String text) {
if (ATOM.matcher(text).matches()) {
return text;
} else {
return quoteString(text);
}
}
/**
* Ensures that the given string starts and ends with the double quote character. The string is not modified in any way except to add the
* double quote character to start and end if it's not already there.
* sample -> "sample"
* "sample" -> "sample"
* ""sample"" -> "sample"
* "sample"" -> "sample"
* sa"mp"le -> "sa"mp"le"
* "sa"mp"le" -> "sa"mp"le"
* (empty string) -> ""
* " -> ""
* @param s
* @return
*/
private static String quoteString(String s) {
if (s == null) {
return null;
}
if (!s.matches("^\".*\"$")) {
return "\"" + s + "\"";
} else {
return s;
}
}
}