# The XSLT C library for GNOME ## Module security from libxslt

API Menu
Main Menu Developer Menu API Menu ChangeLog
Related links
Mail archive XML libxml2 FTP Windows binaries Solaris binaries MacOsX binaries Bug Tracker XSLT with PHP Apache module Pascal bindings Xsldbg Debugger
API Indexes
Alphabetic Constructors Functions/Types Modules Symbols
the libxslt security framework allow to restrict the access to new resources (file or URL) from the stylesheet at runtime. ## Table of Contents
    Enum xsltSecurityOption
    Structure xsltSecurityPrefs
    struct _xsltSecurityPrefs
    The content of this structure is not made public by the API.
    Typedef xsltSecurityPrefs * xsltSecurityPrefsPtr
    int	xsltCheckRead			(xsltSecurityPrefsPtr sec,
    					 xsltTransformContextPtr ctxt,
    					 const xmlChar * URL)
    int	xsltCheckWrite			(xsltSecurityPrefsPtr sec,
    					 xsltTransformContextPtr ctxt,
    					 const xmlChar * URL)
    void	xsltFreeSecurityPrefs		(xsltSecurityPrefsPtr sec)
    xsltSecurityPrefsPtr	xsltGetDefaultSecurityPrefs	(void)
    xsltSecurityCheck	xsltGetSecurityPrefs	(xsltSecurityPrefsPtr sec,
    						 xsltSecurityOption option)
    xsltSecurityPrefsPtr	xsltNewSecurityPrefs	(void)
    int	xsltSecurityAllow		(xsltSecurityPrefsPtr sec,
    					 xsltTransformContextPtr ctxt,
    					 const char * value)
    Function type: xsltSecurityCheck
    int	xsltSecurityCheck		(xsltSecurityPrefsPtr sec,
    					 xsltTransformContextPtr ctxt,
    					 const char * value)
    int	xsltSecurityForbid		(xsltSecurityPrefsPtr sec,
    					 xsltTransformContextPtr ctxt,
    					 const char * value)
    int	xsltSetCtxtSecurityPrefs	(xsltSecurityPrefsPtr sec,
    					 xsltTransformContextPtr ctxt)
    void	xsltSetDefaultSecurityPrefs	(xsltSecurityPrefsPtr sec)
    int	xsltSetSecurityPrefs		(xsltSecurityPrefsPtr sec,
    					 xsltSecurityOption option,
    					 xsltSecurityCheck func)
## Description ### Enum xsltSecurityOption
    Enum xsltSecurityOption {
        XSLT_SECPREF_READ_FILE = 1
        XSLT_SECPREF_WRITE_FILE = 2
        XSLT_SECPREF_CREATE_DIRECTORY = 3
        XSLT_SECPREF_READ_NETWORK = 4
        XSLT_SECPREF_WRITE_NETWORK = 5
    }
### Structure xsltSecurityPrefs
    Structure xsltSecurityPrefs
    struct _xsltSecurityPrefs {
    The content of this structure is not made public by the API.
    }
### Function: xsltCheckRead
    int	xsltCheckRead			(xsltSecurityPrefsPtr sec,
    					 xsltTransformContextPtr ctxt,
    					 const xmlChar * URL)
Check if the resource is allowed to be read
`sec`: | the security options
`ctxt`: | an XSLT transformation context
`URL`: | the resource to be read
`Returns`: | 1 if read is allowed, 0 if not and -1 in case or error.
### Function: xsltCheckWrite
    int	xsltCheckWrite			(xsltSecurityPrefsPtr sec,
    					 xsltTransformContextPtr ctxt,
    					 const xmlChar * URL)
Check if the resource is allowed to be written, if necessary makes some preliminary work like creating directories
`sec`: | the security options
`ctxt`: | an XSLT transformation context
`URL`: | the resource to be written
`Returns`: | 1 if write is allowed, 0 if not and -1 in case or error.
### Function: xsltFreeSecurityPrefs
    void	xsltFreeSecurityPrefs		(xsltSecurityPrefsPtr sec)
Free up a security preference block
`sec`: | the security block to free
### Function: xsltGetDefaultSecurityPrefs
    xsltSecurityPrefsPtr	xsltGetDefaultSecurityPrefs	(void)
Get the default security preference application-wide
`Returns`: | the current xsltSecurityPrefsPtr in use or NULL if none
### Function: xsltGetSecurityPrefs
    xsltSecurityCheck	xsltGetSecurityPrefs	(xsltSecurityPrefsPtr sec,
    						 xsltSecurityOption option)
Lookup the security option to get the callback checking function
`sec`: | the security block to update
`option`: | the option to lookup
`Returns`: | NULL if not found, the function otherwise
### Function: xsltNewSecurityPrefs
    xsltSecurityPrefsPtr	xsltNewSecurityPrefs	(void)
Create a new security preference block
`Returns`: | a pointer to the new block or NULL in case of error
### Function: xsltSecurityAllow
    int	xsltSecurityAllow		(xsltSecurityPrefsPtr sec,
    					 xsltTransformContextPtr ctxt,
    					 const char * value)
Function used to always allow an operation
`sec`: | the security block to use
`ctxt`: | an XSLT transformation context
`value`: | unused
`Returns`: | 1 always
### Function type: xsltSecurityCheck
    Function type: xsltSecurityCheck
    int	xsltSecurityCheck		(xsltSecurityPrefsPtr sec,
    					 xsltTransformContextPtr ctxt,
    					 const char * value)
User provided function to check the value of a string like a file path or an URL ...
`sec`: |
`ctxt`: |
`value`: |
`Returns`: |
### Function: xsltSecurityForbid
    int	xsltSecurityForbid		(xsltSecurityPrefsPtr sec,
    					 xsltTransformContextPtr ctxt,
    					 const char * value)
Function used to always forbid an operation
`sec`: | the security block to use
`ctxt`: | an XSLT transformation context
`value`: | unused
`Returns`: | 0 always
### Function: xsltSetCtxtSecurityPrefs
    int	xsltSetCtxtSecurityPrefs	(xsltSecurityPrefsPtr sec,
    					 xsltTransformContextPtr ctxt)
Set the security preference for a specific transformation
`sec`: | the security block to use
`ctxt`: | an XSLT transformation context
`Returns`: | -1 in case of error, 0 otherwise
### Function: xsltSetDefaultSecurityPrefs
    void	xsltSetDefaultSecurityPrefs	(xsltSecurityPrefsPtr sec)
Set the default security preference application-wide
`sec`: | the security block to use
### Function: xsltSetSecurityPrefs
    int	xsltSetSecurityPrefs		(xsltSecurityPrefsPtr sec,
    					 xsltSecurityOption option,
    					 xsltSecurityCheck func)
Update the security option to use the new callback checking function
`sec`: | the security block to update
`option`: | the option to update
`func`: | the user callback to use for this option
`Returns`: | -1 in case of error, 0 otherwise
Daniel Veillard