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package eu.siacs.conversations.xmpp.pep;
import android.util.Base64;
import eu.siacs.conversations.xml.Element;
import eu.siacs.conversations.xmpp.jid.Jid;
public class Avatar {
public enum Origin { PEP, VCARD };
public String type;
public String sha1sum;
public String image;
public int height;
public int width;
public long size;
public Jid owner;
public Origin origin = Origin.PEP; //default to maintain compat
public byte[] getImageAsBytes() {
return Base64.decode(image, Base64.DEFAULT);
}
public String getFilename() {
return sha1sum;
}
public static Avatar parseMetadata(Element items) {
Element item = items.findChild("item");
if (item == null) {
return null;
}
Element metadata = item.findChild("metadata");
if (metadata == null) {
return null;
}
String primaryId = item.getAttribute("id");
if (primaryId == null) {
return null;
}
for (Element child : metadata.getChildren()) {
if (child.getName().equals("info")
&& primaryId.equals(child.getAttribute("id"))) {
Avatar avatar = new Avatar();
String height = child.getAttribute("height");
String width = child.getAttribute("width");
String size = child.getAttribute("bytes");
try {
if (height != null) {
avatar.height = Integer.parseInt(height);
}
if (width != null) {
avatar.width = Integer.parseInt(width);
}
if (size != null) {
avatar.size = Long.parseLong(size);
}
} catch (NumberFormatException e) {
return null;
}
avatar.type = child.getAttribute("type");
String hash = child.getAttribute("id");
if (!isValidSHA1(hash)) {
return null;
}
avatar.sha1sum = hash;
avatar.origin = Origin.PEP;
return avatar;
}
}
return null;
}
@Override
public boolean equals(Object object) {
if (object != null && object instanceof Avatar) {
Avatar other = (Avatar) object;
return other.getFilename().equals(this.getFilename());
} else {
return false;
}
}
public static Avatar parsePresence(Element x) {
String hash = x == null ? null : x.findChildContent("photo");
if (hash == null) {
return null;
}
if (!isValidSHA1(hash)) {
return null;
}
Avatar avatar = new Avatar();
avatar.sha1sum = hash;
avatar.origin = Origin.VCARD;
return avatar;
}
private static boolean isValidSHA1(String s) {
return s != null && s.matches("[a-fA-F0-9]{40}");
}
}
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