1package eu.siacs.conversations.parser;
2
3import java.text.ParseException;
4import java.text.SimpleDateFormat;
5import java.util.Locale;
6
7import eu.siacs.conversations.entities.Account;
8import eu.siacs.conversations.entities.Contact;
9import eu.siacs.conversations.entities.Conversation;
10import eu.siacs.conversations.entities.MucOptions;
11import eu.siacs.conversations.services.XmppConnectionService;
12import eu.siacs.conversations.xml.Element;
13import eu.siacs.conversations.xmpp.jid.InvalidJidException;
14import eu.siacs.conversations.xmpp.jid.Jid;
15
16public abstract class AbstractParser {
17
18 protected XmppConnectionService mXmppConnectionService;
19
20 protected AbstractParser(XmppConnectionService service) {
21 this.mXmppConnectionService = service;
22 }
23
24 public static Long parseTimestamp(Element element, Long d) {
25 long min = Long.MAX_VALUE;
26 boolean returnDefault = true;
27 for(Element child : element.getChildren()) {
28 if ("delay".equals(child.getName()) && "urn:xmpp:delay".equals(child.getNamespace())) {
29 String stamp = child.getAttribute("stamp");
30 if (stamp != null) {
31 try {
32 min = Math.min(min,AbstractParser.parseTimestamp(stamp));
33 returnDefault = false;
34 } catch (ParseException e) {
35 //ignore
36 }
37 }
38 }
39 }
40 if (returnDefault) {
41 return d;
42 } else {
43 return min;
44 }
45 }
46
47 public static long parseTimestamp(Element element) {
48 return parseTimestamp(element, System.currentTimeMillis());
49 }
50
51 public static long parseTimestamp(String timestamp) throws ParseException {
52 timestamp = timestamp.replace("Z", "+0000");
53 SimpleDateFormat dateFormat;
54 long ms;
55 if (timestamp.charAt(19) == '.' && timestamp.length() >= 25) {
56 String millis = timestamp.substring(19,timestamp.length() - 5);
57 try {
58 double fractions = Double.parseDouble("0" + millis);
59 ms = Math.round(1000 * fractions);
60 } catch (NumberFormatException e) {
61 ms = 0;
62 }
63 } else {
64 ms = 0;
65 }
66 timestamp = timestamp.substring(0,19)+timestamp.substring(timestamp.length() -5,timestamp.length());
67 dateFormat = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssZ",Locale.US);
68 return Math.min(dateFormat.parse(timestamp).getTime()+ms, System.currentTimeMillis());
69 }
70
71 protected void updateLastseen(final Account account, final Jid from) {
72 final Contact contact = account.getRoster().getContact(from);
73 contact.setLastResource(from.isBareJid() ? "" : from.getResourcepart());
74 }
75
76 protected String avatarData(Element items) {
77 Element item = items.findChild("item");
78 if (item == null) {
79 return null;
80 }
81 return item.findChildContent("data", "urn:xmpp:avatar:data");
82 }
83
84 public static MucOptions.User parseItem(Conversation conference, Element item) {
85 return parseItem(conference,item, null);
86 }
87
88 public static MucOptions.User parseItem(Conversation conference, Element item, Jid fullJid) {
89 final String local = conference.getJid().getLocalpart();
90 final String domain = conference.getJid().getDomainpart();
91 String affiliation = item.getAttribute("affiliation");
92 String role = item.getAttribute("role");
93 String nick = item.getAttribute("nick");
94 if (nick != null && fullJid == null) {
95 try {
96 fullJid = Jid.fromParts(local, domain, nick);
97 } catch (InvalidJidException e) {
98 fullJid = null;
99 }
100 }
101 Jid realJid = item.getAttributeAsJid("jid");
102 MucOptions.User user = new MucOptions.User(conference.getMucOptions(), fullJid);
103 user.setRealJid(realJid);
104 user.setAffiliation(affiliation);
105 user.setRole(role);
106 return user;
107 }
108
109 public static String extractErrorMessage(Element packet) {
110 final Element error = packet.findChild("error");
111 if (error != null && error.getChildren().size() > 0) {
112 final String text = error.findChildContent("text");
113 if (text != null && !text.trim().isEmpty()) {
114 return text;
115 } else {
116 return error.getChildren().get(0).getName().replace("-"," ");
117 }
118 } else {
119 return null;
120 }
121 }
122}