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PI3WEB.EXE
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UserDir.c
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/*____________________________________________________________________________*\
Copyright (c) 1997 John Roy. All rights reserved.
These sources, libraries and applications are
FREE FOR COMMERCIAL AND NON-COMMERCIAL USE
as long as the following conditions are adhered to.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in
the documentation and/or other materials provided with the
distribution.
3. Redistributions of any form whatsoever and all advertising materials
mentioning features must contain the following
acknowledgment:
"This product includes software developed by John Roy
(http://www.johnroy.com/pi3/)."
THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHORS OR ITS CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
OF THE POSSIBILITY OF SUCH DAMAGE.
*____________________________________________________________________________*|
*
* $Source: UserDir.c$
* $Date: Sun Aug 10 06:37:33 1997$
*
Description:
User directory mapping.
\*____________________________________________________________________________*/
/* $SourceTop:$ */
#include <string.h>
#include <assert.h>
#include "Pi3API.h"
#define KEY_CONF_USERDIRECTORYROOT "UserDirectoryRoot"
#define KEY_CONF_HTMLDIRECTORY "HTMLDirectory"
/*____________________________________________________________________________*\
*
Description:
Documentation
\*____________________________________________________________________________*/
#if 0
/*
** HTML documentation for this handler
*/
/*___+++HTMLDOC_BEGIN+++___*/
Name:
UserDirectory
Description:
Remap user directories.
Example
<B><PRE>
UserDirectoryRoot="/home/"
HTMLDirectory="/public_html"
/~jroy/hello.html --> /home/jroy/public_html/hello.html
</PRE></B>
Options:
<H5>Overview</H5>
<TABLE BORDER=1>
<TH>Option
<TH>Default
<TH>Values
<TH>Short Description
<TH>Example(s)
<TR>
<TD>UserDirectoryRoot
<TD>+
<TD>A directory path
<TD>Root of user directories
<TD>UserDirectoryRoot="/home/"
<TR>
<TD>HTMLDirectory
<TD>+
<TD>A directory name
<TD>User directory with web files
<TD>HTMLDirectory="/public_html"
</TABLE>
<STRONG>-</STRONG> in the <IT>default</IT> indicates no default<BR>
<STRONG>+</STRONG> in the <IT>default</IT> indicates the field is mandatory<BR>
<!--
Dont forget the slashes
<H4>Description of Options</H4>
<H5>
Pi3Expression
</H5>
Pi3Expression to write in the debug log.
-->
Phase:
MAPPING
Returns:
PIAPI_COMPLETED if the directory was mapped, otherwise PIAPI_CONTINUE.
Note:
Example:
<PRE>
<Object>
Name UserDirectory
Class UserDirectoryClass
UserDirectoryRoot "/home/"
HTMLDirectory "/public_html"
</Object>
<Object>
...
Handle UserDirectory
...
</Object>
</PRE>
/*___+++HTMLDOC_END+++___*/
#endif
/*____________________________________________________________________________*\
*
Description:
\*____________________________________________________________________________*/
struct _UserDirectory
{
char *pRoot;
int iRootLen;
char *pDirectory;
int iDirectoryLen;
};
typedef struct _UserDirectory UserDirectory;
/*____________________________________________________________________________*\
*
Function:
Synopsis:
Description:
\*____________________________________________________________________________*/
int UserDirectory_fnParameter( void *pData, const char *pVar, const char *pVal,
const char *pWhere )
{
PIObject *pObject = (PIObject *)pData;
UserDirectory *pUserDirectory = (UserDirectory *)PIObject_getUserData( pObject );
(void)pUserDirectory;
assert( pVar );
assert( pVal );
if ( !PIUtil_stricmp( pVar, KEY_CONF_USERDIRECTORYROOT) )
{
pUserDirectory->pRoot = PIUtil_strdup( pVal );
pUserDirectory->iRootLen = strlen( pUserDirectory->pRoot );
}
else if ( !PIUtil_stricmp( pVar, KEY_CONF_HTMLDIRECTORY) )
{
pUserDirectory->pDirectory = PIUtil_strdup( pVal );
pUserDirectory->iDirectoryLen = strlen( pUserDirectory->pDirectory );
}
else
{
/* --- Configuration error --- */
PILog_addMessage( PIObject_getDB( pObject ),
PIObject_getConfigurationDB( pObject ),
PILOG_ERROR, "UserDirectory: %sUnknown directive '%s'.",
pWhere, pVar );
return 0;
};
return 1;
}
/*____________________________________________________________________________*\
*
Function:
Synopsis:
Description:
\*____________________________________________________________________________*/
int UserDirectory_init( UserDirectory *pUserDirectory, PIObject *pObject, int iArgc,
const char *ppArgv[] )
{
int iRet = PIObject_readParameters( pObject, iArgc, ppArgv,
UserDirectory_fnParameter, pObject );
/* --- set defaults --- */
if ( iRet )
{
if ( !pUserDirectory->pRoot )
{
PILog_addMessage(
PIObject_getDB( pObject ),
PIObject_getConfigurationDB( pObject ),
PILOG_ERROR, "%s", "UserDirectory: 'UserDirectoryRoot' \
not specified." );
iRet = 0;
}
else if ( !pUserDirectory->pDirectory )
{
PILog_addMessage(
PIObject_getDB( pObject ),
PIObject_getConfigurationDB( pObject ),
PILOG_ERROR, "%s", "UserDirectory: 'HTMLDirectory' \
not specified." );
iRet = 0;
};
};
return iRet;
}
/*____________________________________________________________________________*\
*
Function:
Synopsis:
Description:
\*____________________________________________________________________________*/
int UserDirectory_handle( PIHTTP *pPIHTTP, UserDirectory *pUserDirectory )
{
const char *pPath;
int i;
enum { BUF_SIZE=2047 };
char szBuffer[BUF_SIZE+1];
char *pBuffer = szBuffer;
int iSize;
assert( pUserDirectory );
assert( pUserDirectory->pRoot );
assert( pUserDirectory->pDirectory );
/* ---
Get Path
--- */
pPath = (const char *)PIDB_lookup( pPIHTTP->pResponseDB, PIDBTYPE_STRING,
KEY_INT_PATH, 0 );
/* ---
See if this path is not a user path
--- */
if ( !pPath || *pPath!='/' || pPath[1]!='~' )
{
return PIAPI_CONTINUE;
};
/* ---
Scan to first '/' character
--- */
pPath = &( pPath[2] );
for( i=0; pPath[i] && pPath[i]!='/'; i++ );
/* ---
Write in root
--- */
iSize = BUF_SIZE;
if ( !iSize ) { goto buffer_error; };
strncpy( pBuffer, pUserDirectory->pRoot, iSize );
iSize -= pUserDirectory->iRootLen;
pBuffer = &( pBuffer[pUserDirectory->iRootLen] );
/* ---
Then user name
--- */
if ( iSize<i ) { goto buffer_error; };
if ( i )
{
strncat( pBuffer, pPath, i );
iSize -= i;
pBuffer = &( pBuffer[i] );
};
/* ---
Then HTML directory
--- */
if ( iSize<pUserDirectory->iDirectoryLen ) { goto buffer_error; };
if ( pUserDirectory->iDirectoryLen )
{
strcat( pBuffer, pUserDirectory->pDirectory );
iSize -= pUserDirectory->iDirectoryLen;
pBuffer = &( pBuffer[pUserDirectory->iDirectoryLen] );
};
/* ---
Then the path that followed the user directory
--- */
pPath = &( pPath[i] );
i = strlen( pPath );
if ( iSize<i ) { goto buffer_error; };
if ( i )
{
strcat( pBuffer, pPath );
};
/* ---
Done, replace path
--- */
PIDB_replace( pPIHTTP->pResponseDB, PIDBTYPE_STRING, KEY_INT_PATH,
szBuffer, 0 );
/*
** NOTE: Verify that path is world readable? (UNIX only)
*/
return PIAPI_COMPLETED;
buffer_error:
HTTPCore_logError( pPIHTTP, "UserDirectory: Internal error remapping \
to user directory. Path components too long for internal buffer." );
/* ---
Internal redirect to error handler
--- */
return HTTPUtil_doHTTPError( pPIHTTP, ST_INTERNALERROR );
}
/*____________________________________________________________________________*\
*
Function:
Synopsis:
Description:
\*____________________________________________________________________________*/
PUBLIC_PIAPI int UserDirectory_onClassLoad( PIClass_LoadAction eLoad, int i,
const char *a[] )
{
return PIAPI_COMPLETED;
}
/*____________________________________________________________________________*\
*
Function:
Synopsis:
Description:
\*____________________________________________________________________________*/
PUBLIC_PIAPI int UserDirectory_constructor( PIObject *pObj,
int iArgc, const char *ppArgv[] )
{
UserDirectory *pUserDirectory = PIUtil_malloc( sizeof( UserDirectory ) );
memset( pUserDirectory, 0, sizeof( UserDirectory ) );
PIObject_setUserData( pObj, pUserDirectory );
if ( !UserDirectory_init( pUserDirectory, pObj, iArgc, ppArgv ) )
{
return PIAPI_ERROR;
};
return PIAPI_COMPLETED;
}
/*____________________________________________________________________________*\
*
Function:
Synopsis:
Description:
\*____________________________________________________________________________*/
PUBLIC_PIAPI int UserDirectory_copyConstructor( PIObject *o, int i, const char *a[] )
{
return PIAPI_ERROR;
}
/*____________________________________________________________________________*\
*
Function:
Synopsis:
Description:
\*____________________________________________________________________________*/
PUBLIC_PIAPI int UserDirectory_execute( PIObject *pObj,
int iArgc, const char *ppArgv[] )
{
PIHTTP *pPIHTTP;
if ( iArgc<1 )
{ return PIAPI_ERROR; };
pPIHTTP = (PIHTTP *)*ppArgv;
if ( pPIHTTP->ciPhase!=PH_MAPPING )
{ return PIAPI_ERROR; };
return UserDirectory_handle( pPIHTTP,
(UserDirectory *)PIObject_getUserData( pObj ) );
}
/*____________________________________________________________________________*\
*
Function:
Synopsis:
Description:
\*____________________________________________________________________________*/
PUBLIC_PIAPI int UserDirectory_destructor( PIObject *pObj, int i, const char *a[] )
{
UserDirectory *pUserDirectory = (UserDirectory *)PIObject_getUserData( pObj );
if ( pUserDirectory->pRoot )
{ PIUtil_free( pUserDirectory->pRoot ); };
if ( pUserDirectory->pDirectory )
{ PIUtil_free( pUserDirectory->pDirectory ); };
PIUtil_free( pUserDirectory );
return PIAPI_COMPLETED;
}
#if 0
/*___+++CNF_BEGIN+++___*/
<Class>
Name UserDirectoryClass
Type LogicExtension
Library Plugins
OnClassLoad UserDirectory_onClassLoad
Constructor UserDirectory_constructor
CopyConstructor UserDirectory_copyConstructor
Destructor UserDirectory_destructor
Execute UserDirectory_execute
</Class>
<Object>
Name UserDirectory
Class UserDirectoryClass
</Object>
/*___+++CNF_END+++___*/
#endif