1package eu.siacs.conversations.utils;
2
3import android.net.Uri;
4
5import java.io.UnsupportedEncodingException;
6import java.net.URLDecoder;
7import java.util.ArrayList;
8import java.util.List;
9import java.util.Locale;
10
11import eu.siacs.conversations.xmpp.jid.InvalidJidException;
12import eu.siacs.conversations.xmpp.jid.Jid;
13
14public class XmppUri {
15
16 protected String jid;
17 protected boolean muc;
18 protected List<Fingerprint> fingerprints = new ArrayList<>();
19
20 public static final String OMEMO_URI_PARAM = "omemo-sid-";
21 public static final String OTR_URI_PARAM = "otr-fingerprint";
22
23 public XmppUri(String uri) {
24 try {
25 parse(Uri.parse(uri));
26 } catch (IllegalArgumentException e) {
27 try {
28 jid = Jid.fromString(uri).toBareJid().toString();
29 } catch (InvalidJidException e2) {
30 jid = null;
31 }
32 }
33 }
34
35 public XmppUri(Uri uri) {
36 parse(uri);
37 }
38
39 protected void parse(Uri uri) {
40 String scheme = uri.getScheme();
41 String host = uri.getHost();
42 List<String> segments = uri.getPathSegments();
43 if ("https".equalsIgnoreCase(scheme) && "conversations.im".equalsIgnoreCase(host)) {
44 if (segments.size() >= 2 && segments.get(1).contains("@")) {
45 // sample : https://conversations.im/i/foo@bar.com
46 try {
47 jid = Jid.fromString(segments.get(1)).toString();
48 } catch (Exception e) {
49 jid = null;
50 }
51 } else if (segments.size() >= 3) {
52 // sample : https://conversations.im/i/foo/bar.com
53 jid = segments.get(1) + "@" + segments.get(2);
54 }
55 muc = segments.size() > 1 && "j".equalsIgnoreCase(segments.get(0));
56 } else if ("xmpp".equalsIgnoreCase(scheme)) {
57 // sample: xmpp:foo@bar.com
58 muc = "join".equalsIgnoreCase(uri.getQuery());
59 if (uri.getAuthority() != null) {
60 jid = uri.getAuthority();
61 } else {
62 jid = uri.getSchemeSpecificPart().split("\\?")[0];
63 }
64 this.fingerprints = parseFingerprints(uri.getQuery());
65 } else if ("imto".equalsIgnoreCase(scheme)) {
66 // sample: imto://xmpp/foo@bar.com
67 try {
68 jid = URLDecoder.decode(uri.getEncodedPath(), "UTF-8").split("/")[1];
69 } catch (final UnsupportedEncodingException ignored) {
70 jid = null;
71 }
72 } else {
73 try {
74 jid = Jid.fromString(uri.toString()).toBareJid().toString();
75 } catch (final InvalidJidException ignored) {
76 jid = null;
77 }
78 }
79 }
80
81 protected List<Fingerprint> parseFingerprints(String query) {
82 List<Fingerprint> fingerprints = new ArrayList<>();
83 String[] pairs = query == null ? new String[0] : query.split(";");
84 for(String pair : pairs) {
85 String[] parts = pair.split("=",2);
86 if (parts.length == 2) {
87 String key = parts[0].toLowerCase(Locale.US);
88 String value = parts[1].toLowerCase(Locale.US);
89 if (OTR_URI_PARAM.equals(key)) {
90 fingerprints.add(new Fingerprint(FingerprintType.OTR,value));
91 }
92 if (key.startsWith(OMEMO_URI_PARAM)) {
93 try {
94 int id = Integer.parseInt(key.substring(OMEMO_URI_PARAM.length()));
95 fingerprints.add(new Fingerprint(FingerprintType.OMEMO,value,id));
96 } catch (Exception e) {
97 //ignoring invalid device id
98 }
99 }
100 }
101 }
102 return fingerprints;
103 }
104
105 public Jid getJid() {
106 try {
107 return this.jid == null ? null :Jid.fromString(this.jid.toLowerCase());
108 } catch (InvalidJidException e) {
109 return null;
110 }
111 }
112
113 public List<Fingerprint> getFingerprints() {
114 return this.fingerprints;
115 }
116
117 public boolean hasFingerprints() {
118 return fingerprints.size() > 0;
119 }
120 public enum FingerprintType {
121 OMEMO,
122 OTR
123 }
124
125 public static class Fingerprint {
126 public final FingerprintType type;
127 public final String fingerprint;
128 public final int deviceId;
129
130 public Fingerprint(FingerprintType type, String fingerprint) {
131 this(type, fingerprint, 0);
132 }
133
134 public Fingerprint(FingerprintType type, String fingerprint, int deviceId) {
135 this.type = type;
136 this.fingerprint = fingerprint;
137 this.deviceId = deviceId;
138 }
139
140 @Override
141 public String toString() {
142 return type.toString()+": "+fingerprint+(deviceId != 0 ? " "+String.valueOf(deviceId) : "");
143 }
144 }
145}