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caps: handle multiple data forms of extened service discovery information
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1 changed files with 36 additions and 40 deletions
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@ -19,6 +19,7 @@ package org.jivesoftware.smackx.caps;
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import java.nio.charset.StandardCharsets;
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import java.nio.charset.StandardCharsets;
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import java.security.MessageDigest;
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import java.security.MessageDigest;
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import java.security.NoSuchAlgorithmException;
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import java.security.NoSuchAlgorithmException;
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import java.util.Collections;
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import java.util.Comparator;
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import java.util.Comparator;
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import java.util.HashMap;
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import java.util.HashMap;
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import java.util.LinkedList;
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import java.util.LinkedList;
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@ -664,8 +665,6 @@ public final class EntityCapsManager extends Manager {
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// be "broken" implementation in the wild, so we *always* transform to lowercase.
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// be "broken" implementation in the wild, so we *always* transform to lowercase.
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hash = hash.toLowerCase(Locale.US);
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hash = hash.toLowerCase(Locale.US);
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DataForm extendedInfo = DataForm.from(discoverInfo);
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// 1. Initialize an empty string S ('sb' in this method).
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// 1. Initialize an empty string S ('sb' in this method).
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StringBuilder sb = new StringBuilder(); // Use StringBuilder as we don't
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StringBuilder sb = new StringBuilder(); // Use StringBuilder as we don't
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// need thread-safe StringBuffer
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// need thread-safe StringBuffer
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@ -705,11 +704,14 @@ public final class EntityCapsManager extends Manager {
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sb.append('<');
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sb.append('<');
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}
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}
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// only use the data form for calculation is it has a hidden FORM_TYPE
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List<DataForm> extendedInfos = discoverInfo.getExtensions(DataForm.class);
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// field
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for (DataForm extendedInfo : extendedInfos) {
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// see XEP-0115 5.4 step 3.6
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if (!extendedInfo.hasHiddenFormTypeField()) {
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if (extendedInfo != null && extendedInfo.hasHiddenFormTypeField()) {
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// Only use the data form for calculation is it has a hidden FORM_TYPE field.
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synchronized (extendedInfo) {
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// See XEP-0115 5.4 step 3.f
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continue;
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}
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// 6. If the service discovery information response includes
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// 6. If the service discovery information response includes
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// XEP-0128 data forms, sort the forms by the FORM_TYPE (i.e.,
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// XEP-0128 data forms, sort the forms by the FORM_TYPE (i.e.,
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// by the XML character data of the <value/> element).
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// by the XML character data of the <value/> element).
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@ -720,20 +722,14 @@ public final class EntityCapsManager extends Manager {
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}
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}
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});
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});
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FormField ft = null;
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for (FormField f : extendedInfo.getFields()) {
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for (FormField f : extendedInfo.getFields()) {
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if (!f.getVariable().equals("FORM_TYPE")) {
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if (!f.getVariable().equals("FORM_TYPE")) {
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fs.add(f);
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fs.add(f);
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} else {
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ft = f;
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}
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}
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}
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}
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// Add FORM_TYPE values
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// Add FORM_TYPE values
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if (ft != null) {
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formFieldValuesToCaps(Collections.singletonList(extendedInfo.getFormType()), sb);
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formFieldValuesToCaps(ft.getValues(), sb);
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}
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// 7. 3. For each field other than FORM_TYPE:
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// 7. 3. For each field other than FORM_TYPE:
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// 1. Append the value of the "var" attribute, followed by the
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// 1. Append the value of the "var" attribute, followed by the
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@ -748,7 +744,7 @@ public final class EntityCapsManager extends Manager {
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formFieldValuesToCaps(f.getValues(), sb);
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formFieldValuesToCaps(f.getValues(), sb);
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}
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}
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}
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}
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}
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// 8. Ensure that S is encoded according to the UTF-8 encoding (RFC
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// 8. Ensure that S is encoded according to the UTF-8 encoding (RFC
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// 3269).
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// 3269).
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// 9. Compute the verification string by hashing S using the algorithm
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// 9. Compute the verification string by hashing S using the algorithm
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