summaryrefslogtreecommitdiffstats
path: root/contrib/xml2/sql/xml2.sql
blob: ac49cfa7c52315ca48c4829e58253acc7eed49eb (plain)
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
CREATE EXTENSION xml2;

select query_to_xml('select 1 as x',true,false,'');

select xslt_process( query_to_xml('select x from generate_series(1,5) as
x',true,false,'')::text,
$$<xsl:stylesheet version="1.0"
               xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="xml" indent="yes" />
<xsl:template match="*">
  <xsl:copy>
     <xsl:copy-of select="@*" />
     <xsl:apply-templates />
  </xsl:copy>
</xsl:template>
<xsl:template match="comment()|processing-instruction()">
  <xsl:copy />
</xsl:template>
</xsl:stylesheet>
$$::text);

CREATE TABLE xpath_test (id integer NOT NULL, t xml);
INSERT INTO xpath_test VALUES (1, '<doc><int>1</int></doc>');
SELECT * FROM xpath_table('id', 't', 'xpath_test', '/doc/int', 'true')
as t(id int4);
SELECT * FROM xpath_table('id', 't', 'xpath_test', '/doc/int', 'true')
as t(id int4, doc int4);

DROP TABLE xpath_test;
CREATE TABLE xpath_test (id integer NOT NULL, t text);
INSERT INTO xpath_test VALUES (1, '<doc><int>1</int></doc>');
SELECT * FROM xpath_table('id', 't', 'xpath_test', '/doc/int', 'true')
as t(id int4);
SELECT * FROM xpath_table('id', 't', 'xpath_test', '/doc/int', 'true')
as t(id int4, doc int4);

create table articles (article_id integer, article_xml xml, date_entered date);
insert into articles (article_id, article_xml, date_entered)
values (2, '<article><author>test</author><pages>37</pages></article>', now());
SELECT * FROM
xpath_table('article_id',
            'article_xml',
            'articles',
            '/article/author|/article/pages|/article/title',
            'date_entered > ''2003-01-01'' ')
AS t(article_id integer, author text, page_count integer, title text);

-- this used to fail when invoked a second time
select xslt_process('<aaa/>',$$<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:template match="@*|node()">
      <xsl:copy>
         <xsl:apply-templates select="@*|node()"/>
      </xsl:copy>
   </xsl:template>
</xsl:stylesheet>$$)::xml;

select xslt_process('<aaa/>',$$<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:template match="@*|node()">
      <xsl:copy>
         <xsl:apply-templates select="@*|node()"/>
      </xsl:copy>
   </xsl:template>
</xsl:stylesheet>$$)::xml;

create table t1 (id integer, xml_data xml);
insert into t1 (id, xml_data)
values
(1, '<attributes><attribute name="attr_1">Some
Value</attribute></attributes>');

create index idx_xpath on t1 ( xpath_string
('/attributes/attribute[@name="attr_1"]/text()', xml_data::text));

SELECT xslt_process('<employee><name>cim</name><age>30</age><pay>400</pay></employee>'::text, $$<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
  <xsl:output method="xml" omit-xml-declaration="yes" indent="yes"/>
  <xsl:strip-space elements="*"/>
  <xsl:param name="n1"/>
  <xsl:param name="n2"/>
  <xsl:param name="n3"/>
  <xsl:param name="n4"/>
  <xsl:param name="n5" select="'me'"/>
  <xsl:template match="*">
    <xsl:element name="samples">
      <xsl:element name="sample">
        <xsl:value-of select="$n1"/>
      </xsl:element>
      <xsl:element name="sample">
        <xsl:value-of select="$n2"/>
      </xsl:element>
      <xsl:element name="sample">
        <xsl:value-of select="$n3"/>
      </xsl:element>
      <xsl:element name="sample">
        <xsl:value-of select="$n4"/>
      </xsl:element>
      <xsl:element name="sample">
        <xsl:value-of select="$n5"/>
      </xsl:element>
      <xsl:element name="sample">
        <xsl:value-of select="$n6"/>
      </xsl:element>
      <xsl:element name="sample">
        <xsl:value-of select="$n7"/>
      </xsl:element>
      <xsl:element name="sample">
        <xsl:value-of select="$n8"/>
      </xsl:element>
      <xsl:element name="sample">
        <xsl:value-of select="$n9"/>
      </xsl:element>
      <xsl:element name="sample">
        <xsl:value-of select="$n10"/>
      </xsl:element>
      <xsl:element name="sample">
        <xsl:value-of select="$n11"/>
      </xsl:element>
      <xsl:element name="sample">
        <xsl:value-of select="$n12"/>
      </xsl:element>
    </xsl:element>
  </xsl:template>
</xsl:stylesheet>$$::text, 'n1="v1",n2="v2",n3="v3",n4="v4",n5="v5",n6="v6",n7="v7",n8="v8",n9="v9",n10="v10",n11="v11",n12="v12"'::text);

-- possible security exploit
SELECT xslt_process('<xml><foo>Hello from XML</foo></xml>',
$$<xsl:stylesheet version="1.0"
      xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
      xmlns:sax="http://icl.com/saxon"
      extension-element-prefixes="sax">

  <xsl:template match="//foo">
    <sax:output href="0wn3d.txt" method="text">
      <xsl:value-of select="'0wn3d via xml2 extension and libxslt'"/>
      <xsl:apply-templates/>
    </sax:output>
  </xsl:template>
</xsl:stylesheet>$$);