1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
|
/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch licenses this file to you under
* the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.elasticsearch.script.mustache;
import com.github.mustachejava.MustacheFactory;
import org.elasticsearch.common.ParseFieldMatcher;
import org.elasticsearch.common.bytes.BytesReference;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.xcontent.XContentFactory;
import org.elasticsearch.common.xcontent.XContentParser;
import org.elasticsearch.script.CompiledScript;
import org.elasticsearch.script.ExecutableScript;
import org.elasticsearch.script.Script;
import org.elasticsearch.script.ScriptType;
import org.elasticsearch.test.ESTestCase;
import org.junit.Before;
import java.io.IOException;
import java.io.StringWriter;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import static org.hamcrest.Matchers.equalTo;
/**
* Mustache based templating test
*/
public class MustacheScriptEngineTests extends ESTestCase {
private MustacheScriptEngineService qe;
private MustacheFactory factory;
@Before
public void setup() {
qe = new MustacheScriptEngineService(Settings.Builder.EMPTY_SETTINGS);
factory = new CustomMustacheFactory();
}
public void testSimpleParameterReplace() {
Map<String, String> compileParams = Collections.singletonMap("content_type", "application/json");
{
String template = "GET _search {\"query\": " + "{\"boosting\": {" + "\"positive\": {\"match\": {\"body\": \"gift\"}},"
+ "\"negative\": {\"term\": {\"body\": {\"value\": \"solr\"}" + "}}, \"negative_boost\": {{boost_val}} } }}";
Map<String, Object> vars = new HashMap<>();
vars.put("boost_val", "0.3");
BytesReference o = (BytesReference) qe.executable(new CompiledScript(ScriptType.INLINE, "", "mustache",
qe.compile(null, template, compileParams)), vars).run();
assertEquals("GET _search {\"query\": {\"boosting\": {\"positive\": {\"match\": {\"body\": \"gift\"}},"
+ "\"negative\": {\"term\": {\"body\": {\"value\": \"solr\"}}}, \"negative_boost\": 0.3 } }}",
o.utf8ToString());
}
{
String template = "GET _search {\"query\": " + "{\"boosting\": {" + "\"positive\": {\"match\": {\"body\": \"gift\"}},"
+ "\"negative\": {\"term\": {\"body\": {\"value\": \"{{body_val}}\"}" + "}}, \"negative_boost\": {{boost_val}} } }}";
Map<String, Object> vars = new HashMap<>();
vars.put("boost_val", "0.3");
vars.put("body_val", "\"quick brown\"");
BytesReference o = (BytesReference) qe.executable(new CompiledScript(ScriptType.INLINE, "", "mustache",
qe.compile(null, template, compileParams)), vars).run();
assertEquals("GET _search {\"query\": {\"boosting\": {\"positive\": {\"match\": {\"body\": \"gift\"}},"
+ "\"negative\": {\"term\": {\"body\": {\"value\": \"\\\"quick brown\\\"\"}}}, \"negative_boost\": 0.3 } }}",
o.utf8ToString());
}
}
public void testSimple() throws IOException {
String templateString = "{" + "\"inline\":{\"match_{{template}}\": {}}," + "\"params\":{\"template\":\"all\"}" + "}";
XContentParser parser = XContentFactory.xContent(templateString).createParser(templateString);
Script script = Script.parse(parser, new ParseFieldMatcher(false));
CompiledScript compiledScript = new CompiledScript(ScriptType.INLINE, null, "mustache",
qe.compile(null, script.getScript(), Collections.emptyMap()));
ExecutableScript executableScript = qe.executable(compiledScript, script.getParams());
assertThat(((BytesReference) executableScript.run()).utf8ToString(), equalTo("{\"match_all\":{}}"));
}
public void testParseTemplateAsSingleStringWithConditionalClause() throws IOException {
String templateString = "{" + " \"inline\" : \"{ \\\"match_{{#use_it}}{{template}}{{/use_it}}\\\":{} }\"," + " \"params\":{"
+ " \"template\":\"all\"," + " \"use_it\": true" + " }" + "}";
XContentParser parser = XContentFactory.xContent(templateString).createParser(templateString);
Script script = Script.parse(parser, new ParseFieldMatcher(false));
CompiledScript compiledScript = new CompiledScript(ScriptType.INLINE, null, "mustache",
qe.compile(null, script.getScript(), Collections.emptyMap()));
ExecutableScript executableScript = qe.executable(compiledScript, script.getParams());
assertThat(((BytesReference) executableScript.run()).utf8ToString(), equalTo("{ \"match_all\":{} }"));
}
public void testEscapeJson() throws IOException {
{
StringWriter writer = new StringWriter();
factory.encode("hello \n world", writer);
assertThat(writer.toString(), equalTo("hello \\n world"));
}
{
StringWriter writer = new StringWriter();
factory.encode("\n", writer);
assertThat(writer.toString(), equalTo("\\n"));
}
Character[] specialChars = new Character[]{
'\"',
'\\',
'\u0000',
'\u0001',
'\u0002',
'\u0003',
'\u0004',
'\u0005',
'\u0006',
'\u0007',
'\u0008',
'\u0009',
'\u000B',
'\u000C',
'\u000E',
'\u000F',
'\u001F'};
String[] escapedChars = new String[]{
"\\\"",
"\\\\",
"\\u0000",
"\\u0001",
"\\u0002",
"\\u0003",
"\\u0004",
"\\u0005",
"\\u0006",
"\\u0007",
"\\u0008",
"\\u0009",
"\\u000B",
"\\u000C",
"\\u000E",
"\\u000F",
"\\u001F"};
int iters = scaledRandomIntBetween(100, 1000);
for (int i = 0; i < iters; i++) {
int rounds = scaledRandomIntBetween(1, 20);
StringWriter expect = new StringWriter();
StringWriter writer = new StringWriter();
for (int j = 0; j < rounds; j++) {
String s = getChars();
writer.write(s);
expect.write(s);
int charIndex = randomInt(7);
writer.append(specialChars[charIndex]);
expect.append(escapedChars[charIndex]);
}
StringWriter target = new StringWriter();
factory.encode(writer.toString(), target);
assertThat(expect.toString(), equalTo(target.toString()));
}
}
private String getChars() {
String string = randomRealisticUnicodeOfCodepointLengthBetween(0, 10);
for (int i = 0; i < string.length(); i++) {
if (isEscapeChar(string.charAt(i))) {
return string.substring(0, i);
}
}
return string;
}
/**
* From https://www.ietf.org/rfc/rfc4627.txt:
*
* All Unicode characters may be placed within the
* quotation marks except for the characters that must be escaped:
* quotation mark, reverse solidus, and the control characters (U+0000
* through U+001F).
* */
private static boolean isEscapeChar(char c) {
switch (c) {
case '"':
case '\\':
return true;
}
if (c < '\u002F')
return true;
return false;
}
}
|
