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 private String body;
20
21 public static final String OMEMO_URI_PARAM = "omemo-sid-";
22 public static final String OTR_URI_PARAM = "otr-fingerprint";
23
24 public XmppUri(String uri) {
25 try {
26 parse(Uri.parse(uri));
27 } catch (IllegalArgumentException e) {
28 try {
29 jid = Jid.fromString(uri).toBareJid().toString();
30 } catch (InvalidJidException e2) {
31 jid = null;
32 }
33 }
34 }
35
36 public XmppUri(Uri uri) {
37 parse(uri);
38 }
39
40 protected void parse(Uri uri) {
41 String scheme = uri.getScheme();
42 String host = uri.getHost();
43 List<String> segments = uri.getPathSegments();
44 if ("https".equalsIgnoreCase(scheme) && "conversations.im".equalsIgnoreCase(host)) {
45 if (segments.size() >= 2 && segments.get(1).contains("@")) {
46 // sample : https://conversations.im/i/foo@bar.com
47 try {
48 jid = Jid.fromString(segments.get(1)).toString();
49 } catch (Exception e) {
50 jid = null;
51 }
52 } else if (segments.size() >= 3) {
53 // sample : https://conversations.im/i/foo/bar.com
54 jid = segments.get(1) + "@" + segments.get(2);
55 }
56 muc = segments.size() > 1 && "j".equalsIgnoreCase(segments.get(0));
57 } else if ("xmpp".equalsIgnoreCase(scheme)) {
58 // sample: xmpp:foo@bar.com
59 muc = isMuc(uri.getQuery());
60 if (uri.getAuthority() != null) {
61 jid = uri.getAuthority();
62 } else {
63 jid = uri.getSchemeSpecificPart().split("\\?")[0];
64 }
65 this.fingerprints = parseFingerprints(uri.getQuery());
66 this.body = parseBody(uri.getQuery());
67 } else if ("imto".equalsIgnoreCase(scheme)) {
68 // sample: imto://xmpp/foo@bar.com
69 try {
70 jid = URLDecoder.decode(uri.getEncodedPath(), "UTF-8").split("/")[1];
71 } catch (final UnsupportedEncodingException ignored) {
72 jid = null;
73 }
74 } else {
75 try {
76 jid = Jid.fromString(uri.toString()).toBareJid().toString();
77 } catch (final InvalidJidException ignored) {
78 jid = null;
79 }
80 }
81 }
82
83 protected List<Fingerprint> parseFingerprints(String query) {
84 List<Fingerprint> fingerprints = new ArrayList<>();
85 String[] pairs = query == null ? new String[0] : query.split(";");
86 for(String pair : pairs) {
87 String[] parts = pair.split("=",2);
88 if (parts.length == 2) {
89 String key = parts[0].toLowerCase(Locale.US);
90 String value = parts[1].toLowerCase(Locale.US);
91 if (OTR_URI_PARAM.equals(key)) {
92 fingerprints.add(new Fingerprint(FingerprintType.OTR,value));
93 }
94 if (key.startsWith(OMEMO_URI_PARAM)) {
95 try {
96 int id = Integer.parseInt(key.substring(OMEMO_URI_PARAM.length()));
97 fingerprints.add(new Fingerprint(FingerprintType.OMEMO,value,id));
98 } catch (Exception e) {
99 //ignoring invalid device id
100 }
101 }
102 }
103 }
104 return fingerprints;
105 }
106
107 protected String parseBody(String query) {
108 for(String pair : query == null ? new String[0] : query.split(";")) {
109 final String[] parts = pair.split("=",2);
110 if (parts.length == 2 && "body".equals(parts[0].toLowerCase(Locale.US))) {
111 try {
112 return URLDecoder.decode(parts[1],"UTF-8");
113 } catch (UnsupportedEncodingException e) {
114 return null;
115 }
116 }
117 }
118 return null;
119 }
120
121 protected boolean isMuc(String query) {
122 for(String pair : query == null ? new String[0] : query.split(";")) {
123 final String[] parts = pair.split("=",2);
124 if (parts.length == 1 && "join".equals(parts[0])) {
125 return true;
126 }
127 }
128 return false;
129 }
130
131 public Jid getJid() {
132 try {
133 return this.jid == null ? null :Jid.fromString(this.jid.toLowerCase());
134 } catch (InvalidJidException e) {
135 return null;
136 }
137 }
138
139 public String getBody() {
140 return body;
141 }
142
143 public List<Fingerprint> getFingerprints() {
144 return this.fingerprints;
145 }
146
147 public boolean hasFingerprints() {
148 return fingerprints.size() > 0;
149 }
150 public enum FingerprintType {
151 OMEMO,
152 OTR
153 }
154
155 public static class Fingerprint {
156 public final FingerprintType type;
157 public final String fingerprint;
158 public final int deviceId;
159
160 public Fingerprint(FingerprintType type, String fingerprint) {
161 this(type, fingerprint, 0);
162 }
163
164 public Fingerprint(FingerprintType type, String fingerprint, int deviceId) {
165 this.type = type;
166 this.fingerprint = fingerprint;
167 this.deviceId = deviceId;
168 }
169
170 @Override
171 public String toString() {
172 return type.toString()+": "+fingerprint+(deviceId != 0 ? " "+String.valueOf(deviceId) : "");
173 }
174 }
175}