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Changes for page Reconnaissance

Last modified by Nicolas Gregoire on 2012/02/03 14:52
From version 1.1 Icon
edited by Nicolas Gregoire
on 2012/01/10 14:47
Change comment: There is no comment for this version
To version Icon 18.1 Icon
edited by Nicolas Gregoire
on 2012/01/16 12:53
Change comment: There is no comment for this version

Summary

Details

Icon Page properties
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1 +recon|fingerprint|system-property
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1 +{{toc/}}
2 +
3 += Using XSLT properties =
4 +
1 1  XSLT standards define several properties about the XSLT engine itself. Querying for these properties allows to easily identify the engine.
2 2  
3 -=== XSLT 1.0 ===
7 +== XSLT 1.0 ==
4 4  
5 5  The function [[system-property()>>http://www.w3.org/TR/xslt#function-system-property||rel="__blank"]] supports by default the following properties :
6 6  
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8 8  * xsl:vendor : a string identifying the vendor of the XSLT processor
9 9  * xsl:vendor-url : a URL identifying the vendor of the XSLT processor (typically its Web site)
10 10  
15 +The attached stylesheet [[recon-xslt10.xsl>>attach:recon-xslt10.xsl]] fingerprints a XSLT 1.0 engine.
16 +
11 11  == XSLT 2.0 ==
12 12  
13 -
14 14  This version supports some [[additional>>http://www.w3.org/TR/xslt20/#system-property||rel="__blank"]] properties :
15 15  
16 16  * xsl:product-name : a string containing the name of the implementation, as defined by the implementer
17 17  * xsl:product-version : a string identifying the version of the implementation, as defined by the implementer
18 -* xsl:is-schema-aware : returns the string "yes" in the case of a schema-aware XSLT processor, or "no" otherwise
19 -* xsl:supports-serialization : returns the string "yes" in the case of a processor that offers the serialization feature, or "no" otherwise
20 -* xsl:supports-backwards-compatibility : returns the string "yes" in the case of a processor that offers the backwards compatibility feature, or "no" otherwise
23 +* xsl:is-schema-aware : returns "yes" if the XSLT processor is schema-aware, or "no" otherwise
24 +* xsl:supports-serialization : returns "yes" if the XSLT processor offers this feature, or "no" otherwise
25 +* xsl:supports-backwards-compatibility : returns "yes" if the XSLT processor offers this feature, or "no" otherwise
21 21  
22 -
27 + The attached stylesheet [[recon-xslt20.xsl>>attach:recon-xslt20.xsl]] fingerprints a XSLT 2.0 engine.
23 23  
29 += Enumerating supported features =
24 24  
31 +== Needed functions ==
32 +
33 +The XSLT standards define two additional functions used to enumerate the available features :
34 +
35 +* function-available()
36 +* element-available()
37 +
38 +== Example ==
39 +
40 +This [[stylesheet>>http://www.xmlplease.com/element-function-available.xsl||rel="__blank"]] uses these functions to test the availability of :
41 +
42 +* XSLT and XPath functions
43 +
44 +* XSLT elements
45 +
46 +* Saxon extensions
47 +
48 +* EXSLT extensions
49 +
50 +{{warning}}
51 +TODO : include my own examples !
52 +{{/warning}}
53 +
54 +== Live demo ==
55 +
56 +If you want to execute the "xmlplease.com" stylesheet, just click on [[attach:recon-enumerate-features.xml]] (will crash Opera).
Icon recon-enumerate-features.xml
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1 +xwiki:XWiki.NicolasGregoire
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1 +108 bytes
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1 +<?xml-stylesheet type="text/xsl" href="http://www.xmlplease.com/element-function-available.xsl" ?>
2 +<empty/>
3 +
Icon recon-xslt10.xsl
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1 +xwiki:XWiki.NicolasGregoire
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1 +372 bytes
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1 +<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
2 +<xsl:output method="text"/>
3 +<xsl:template match="/">
4 +Version : <xsl:value-of select="system-property('xsl:version')" />
5 +Vendor : <xsl:value-of select="system-property('xsl:vendor')" />
6 +Vendor URL : <xsl:value-of select="system-property('xsl:vendor-url')" />
7 +</xsl:template>
8 +</xsl:stylesheet>
9 +
Icon recon-xslt20.xsl
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1 +xwiki:XWiki.NicolasGregoire
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1 +816 bytes
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1 +<xsl:stylesheet version="2.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
2 +<xsl:output method="text"/>
3 +<xsl:template match="/">
4 +Version : <xsl:value-of select="system-property('xsl:version')" />
5 +Vendor : <xsl:value-of select="system-property('xsl:vendor')" />
6 +Vendor URL : <xsl:value-of select="system-property('xsl:vendor-url')" />
7 +Product Name : <xsl:value-of select="system-property('xsl:product-name')" />
8 +Product Version : <xsl:value-of select="system-property('xsl:product-version')" />
9 +Is Schema Aware : <xsl:value-of select="system-property('xsl:is-schema-aware')" />
10 +Supports Serialization : <xsl:value-of select="system-property('xsl:supports-serialization')" />
11 +Backward Compatible : <xsl:value-of select="system-property('xsl:supports-backwards-compatibility')" />
12 +</xsl:template>
13 +</xsl:stylesheet>
14 +