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// -*- C++ -*-
// $Id$
// Ossama Othman <ossama@uci.edu>
#include "Content_Iterator_i.h"
#include "Iterator_Factory_i.h"
#include "ace/OS_NS_time.h"
#include "ace/OS_NS_strings.h"
#include "ace/OS_NS_string.h"
ACE_RCSID (AMI_Iterator,
Iterator_Factory_i,
"$Id$")
void
Iterator_Factory_i::get_iterator (const char *pathname,
Web_Server::Content_Iterator_out contents,
Web_Server::Metadata_Type_out metadata
ACE_ENV_ARG_DECL)
ACE_THROW_SPEC ((CORBA::SystemException, Web_Server::Error_Result))
{
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("Received request for file: <%s>\n"),
pathname));
ACE_stat file_status;
if (ACE_OS::stat (pathname, &file_status) == -1)
// HTTP 1.1 "Internal Server Error".
ACE_THROW (Web_Server::Error_Result (500));
Content_Iterator_i *iterator_servant = 0;
ACE_NEW_THROW_EX (iterator_servant,
Content_Iterator_i (pathname,
file_status.st_size),
CORBA::NO_MEMORY ());
ACE_CHECK;
if (iterator_servant->init () != 0)
{
if (errno == EACCES)
// HTTP 1.1 "Forbidden".
ACE_THROW (Web_Server::Error_Result (403));
else
// HTTP 1.1 "Internal Server Error".
ACE_THROW (Web_Server::Error_Result (500));
}
// Activate the Content_Iterator object.
Web_Server::Content_Iterator_var iterator =
iterator_servant->_this (ACE_ENV_SINGLE_ARG_PARAMETER);
ACE_CHECK;
Web_Server::Metadata_Type *tmp = 0;
ACE_NEW_THROW_EX (tmp,
Web_Server::Metadata_Type,
CORBA::NO_MEMORY ());
ACE_CHECK;
metadata = tmp;
if (this->modification_date (&file_status,
metadata) != 0)
// HTTP 1.1 "Internal Server Error.
ACE_THROW (Web_Server::Error_Result (500));
if (this->content_type (pathname,
metadata) != 0)
// HTTP 1.1 "Internal Server Error.
ACE_THROW (Web_Server::Error_Result (500));
contents = iterator._retn (); // Make a copy
}
int
Iterator_Factory_i::modification_date (ACE_stat * file_status,
Web_Server::Metadata_Type_out metadata)
{
// Get the modification time from the file status structure/
struct tm *t_gmt = gmtime (&(file_status->st_mtime));
// A time string is probably never going to exceed 256 bytes.
const size_t buflen = 256;
char buf[buflen];
// Format the time to conform to RFC 1123.
if (ACE_OS::strftime (buf,
buflen,
"%a, %d %b %Y %H:%M:%S GMT",
t_gmt) == 0)
return -1;
else
metadata->modification_date = CORBA::string_dup (buf);
return 0;
}
int
Iterator_Factory_i::content_type (const char *filename,
Web_Server::Metadata_Type_out metadata)
{
if (filename == 0)
return -1;
// @@ There are a bunch of const_casts in this method. It's ugly.
// I know.
// -Ossama
size_t len = ACE_OS::strlen (filename);
// Search for extension
// Handle the case where multiple periods exists in the filename,
// e.g.: foo.bar.ps
char *extension = 0;
for (char * tmp = const_cast<char *> (filename);
tmp != 0 && tmp != tmp + len;
)
{
tmp = const_cast<char *> (ACE_OS::strchr (tmp, '.'));
if (tmp != 0)
extension = ++tmp; // Skip over the '.'
}
if (extension == 0)
extension = const_cast<char *> (filename); // No extension!
if (ACE_OS::strcasecmp (extension, "htm") == 0
|| ACE_OS::strcasecmp (extension, "html") == 0)
metadata->content_type = CORBA::string_dup ("text/html");
else if (ACE_OS::strcasecmp (extension,
"txt") == 0)
metadata->content_type = CORBA::string_dup ("text/plain");
else if (ACE_OS::strcasecmp (extension,
"ps") == 0)
metadata->content_type =
CORBA::string_dup ("application/postscript");
else if (ACE_OS::strcasecmp (extension,
"pdf") == 0)
metadata->content_type = CORBA::string_dup ("application/pdf");
else if (ACE_OS::strcasecmp (extension,
"jpeg") == 0
|| ACE_OS::strcasecmp (extension,
"jpg") == 0)
metadata->content_type = CORBA::string_dup ("image/jpeg");
else if (ACE_OS::strcasecmp (extension,
"tiff") == 0)
metadata->content_type = CORBA::string_dup ("image/tiff");
else if (ACE_OS::strcasecmp (extension,
"gif") == 0)
metadata->content_type = CORBA::string_dup ("image/gif");
else if (ACE_OS::strcasecmp (extension,
"png") == 0)
metadata->content_type = CORBA::string_dup ("image/png");
else
{
metadata->content_type = CORBA::string_dup ("text/html");
ACE_ERROR ((LM_WARNING,
ACE_TEXT ("\n ")
ACE_TEXT ("Unknown file type. ")
ACE_TEXT ("Using \"text/html\" content type.\n")));
}
return 0;
}
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