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gecko-dev/network/cstream/cstream.c

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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
/*
* Do stream related stuff like push data down the
* stream and determine which converter to use to
* set up the stream.
* Additions/Changes by Judson Valeski 1998
*/
#include "mkutils.h"
#include "cstream.h"
#include "plstr.h"
#include "prmem.h"
#include "mkgeturl.h"
#include "netstream.h"
#include "strmutil.h"
#include "mktcp.h"
/* for XP_GetString() */
#include "xpgetstr.h"
extern int XP_ALERT_CANTFIND_CONVERTER;
#ifdef PROFILE
#pragma profile on
#endif
typedef struct _net_ConverterStruct {
XP_List * converter_stack; /* the ordered list of converters;
* elements are net_ConverterElement's
*/
char * format_in; /* the input (mime) type that the
* function accepts
*/
char * encoding_in; /* the input content-encoding that the
* function accepts, or 0 for `any'.
*/
FO_Present_Types format_out; /* the output type of the function */
Bool bAutomated; /* this flag currently only used by Window on the
client side. */
} net_ConverterStruct;
typedef struct _net_ConverterElement {
NET_Converter * converter; /* the converter function */
void * data_obj; /* a converter specific data object
* passed in at the
* time of registration
*/
} net_ConverterElement;
/* MWH - this is an ugly implement to get get around the following: I need to pass
a flag to NET_RegisterContentTypeConverter(), but I don't want to change the API.
If we changed this API please fixed this problem.
*/
static Bool autoFlag = 0;
#define MAX_FORMATS_OUT FO_ONLY_FROM_CACHE_AND_LOAD_HTML_HELP_MAP_FILE +1
static Bool needInit = TRUE; /* this is the flag to tell us that we need to initialize
net_converter_list, and net_decoder_list. */
PRIVATE XP_List * net_converter_list[MAX_FORMATS_OUT]; /* a list of converters */
PRIVATE XP_List * net_decoder_list[MAX_FORMATS_OUT]; /* a list of decoders */
#define NET_MIME_EXACT_MATCH 1
#define NET_MIME_PARTIAL_MATCH 2
#define NET_WILDCARD_MATCH 3
/* will compare two mime times and return
* NET_MIME_EXACT_MATCH if they match exactly
* or NET_MIME_PARTIAL_MATCH if they match due
* to a wildcard entry (image.*, or movie.*).
*
* if 'partial' equals '*' then
* NET_WILDCARD_MATCH is returned
*
* If there is no match then 0(zero) is returned
*/
PRIVATE int
net_compare_mime_types(char * absolute, char * partial)
{
char *star;
TRACEMSG(("StreamBuilder: Comparing %s and %s\n",absolute, partial));
if(!PL_strcasecmp(absolute, partial))
return(NET_MIME_EXACT_MATCH);
if(!PL_strcmp(partial, "*"))
return(NET_WILDCARD_MATCH);
if((star = PL_strchr(partial, '*')) == 0)
return(0); /* not a wildcard mime type */
/* compare just the part before the slash star
*
*/
if(!PL_strncasecmp(absolute, partial, (star-1)-partial))
return(NET_MIME_PARTIAL_MATCH);
return(0); /* no match */
}
PUBLIC XP_Bool
NET_HaveConverterForMimeType(char *content_type)
{
net_ConverterStruct * cs_ptr;
XP_List * ct_list_ptr = net_converter_list[FO_PRESENT];
while ((cs_ptr=(net_ConverterStruct *) XP_ListNextObject(ct_list_ptr))
!= 0)
{
if (FO_PRESENT == cs_ptr->format_out)
{
int compare_val = net_compare_mime_types (content_type, cs_ptr->format_in);
if (compare_val == NET_MIME_PARTIAL_MATCH || compare_val == NET_MIME_EXACT_MATCH)
return TRUE;
}
}
return FALSE;
}
/* Find a converter routine to create a stream and return the stream struct
*/
PUBLIC NET_StreamClass *
NET_StreamBuilder (FO_Present_Types format_out,
URL_Struct *URL_s,
MWContext *context)
{
net_ConverterStruct * cs_ptr;
XP_List * ct_list_ptr = net_converter_list[format_out];
XP_List * ce_list_ptr = net_decoder_list[format_out];
assert (URL_s->content_type);
TRACEMSG(("Entering StreamBuilder:\n\
F-in: %s\n\
F-out: %d\n\
Enc: %s\n",URL_s->content_type,format_out,
(URL_s->content_encoding ? URL_s->content_encoding : "None Specified")));
#if 0
/* First, determine whether there is a content-type converter for this
document; if there isn't one, then the only way to handle it is to
send it straight to disk, so try that.
*/
if (format_out != FO_SAVE_TO_DISK)
{
while ((cs_ptr=(net_ConverterStruct *) XP_ListNextObject(ct_list_ptr))
!= 0)
{
if (format_out == cs_ptr->format_out &&
net_compare_mime_types (URL_s->content_type,
cs_ptr->format_in))
break;
}
if (! cs_ptr) /* There is no content-type converter; save it. */
format_out = FO_SAVE_TO_DISK;
ct_list_ptr = net_converter_list; /* Reset for next traversal. */
}
#endif
/* if there are content encodings then
* execute decoders first
*/
/* go through list of converters and choose
* the first exact or partial match we
* find. The order of the list
* is guarenteed by the registration
* routines
*
* the format-out is compared as well.
*
* if there are transfer_encodings use them even before
* content_encodings
*/
if ((URL_s->transfer_encoding && *URL_s->transfer_encoding)
|| (URL_s->content_encoding && *URL_s->content_encoding))
{
char *encoding;
if(URL_s->transfer_encoding && *URL_s->transfer_encoding)
encoding = URL_s->transfer_encoding;
else
encoding = URL_s->content_encoding;
while ((cs_ptr=(net_ConverterStruct *) XP_ListNextObject(ce_list_ptr))
!= 0)
{
if (format_out == cs_ptr->format_out &&
net_compare_mime_types (URL_s->content_type,
cs_ptr->format_in) &&
net_compare_mime_types (encoding,
cs_ptr->encoding_in))
{
net_ConverterElement *elem = XP_ListPeekTopObject(cs_ptr->converter_stack);
PR_ASSERT(elem != (net_ConverterElement *)0);
return ((NET_StreamClass *)
((*elem->converter)
(format_out, elem->data_obj, URL_s, context)));
}
}
}
/* now search for content-type converters
*/
/* go through list of converters and choose
* the first exact or partial match we
* find. The order of the list
* is guarenteed by the registration
* routines
*/
while((cs_ptr=(net_ConverterStruct *) XP_ListNextObject(ct_list_ptr)) != 0)
{
if(format_out == cs_ptr->format_out)
if(net_compare_mime_types(URL_s->content_type, cs_ptr->format_in))
{
net_ConverterElement *elem = XP_ListPeekTopObject(cs_ptr->converter_stack);
PR_ASSERT(elem != (net_ConverterElement *)0);
return( (NET_StreamClass *) (*elem->converter) (format_out,
elem->data_obj, URL_s, context));
}
}
TRACEMSG(("Alert! did not find a converter or decoder\n"));
FE_Alert(context, XP_GetString(XP_ALERT_CANTFIND_CONVERTER));
return(0); /* Uh-oh. didn't find a converter. VERY VERY BAD! */
}
/* prints out all presentation mime types during successive calls
* call with first equal true to reset to the beginning
* and with first equal false to print out the next
* converter in the list. Returns zero when all converters
* are printed out.
*/
MODULE_PRIVATE char *
XP_ListNextPresentationType(PRBool first)
{
static XP_List * converter_list_ptr;
net_ConverterStruct * converter;
/* reset list pointers
*/
if(first)
converter_list_ptr = net_converter_list[FO_PRESENT];
/* print out next converter if there are any more
*/
converter = (net_ConverterStruct *) XP_ListNextObject(converter_list_ptr);
if(converter && converter->format_out == FO_PRESENT)
return(converter->format_in);
/* else */
return(NULL);
}
/* prints out all encoding mime types during successive calls
* call with first equal true to reset to the beginning
* and with first equal false to print out the next
* converter in the list. Returns zero when all converters
* are printed out.
*/
MODULE_PRIVATE char *
XP_ListNextEncodingType(PRBool first)
{
static XP_List * decoder_list_ptr;
net_ConverterStruct * converter;
static int count;
static index = 0;
static int curArrayIndex = 0;
while ((index < count) && (curArrayIndex < MAX_FORMATS_OUT)) {
decoder_list_ptr = net_decoder_list[curArrayIndex];
count = XP_ListCount(decoder_list_ptr);
if (count > 0) {
index = 0;
break;
}
else count++;
}
#if 0
/* reset list pointers
*/
if(first)
{
decoder_list_ptr = net_decoder_list;
}
#endif
converter = (net_ConverterStruct *) XP_ListNextObject(decoder_list_ptr);
if(converter) {
index++;
return(converter->format_in);
}
/* else */
return(NULL);
}
PRIVATE void
net_RegisterGenericConverterOrDecoder(XP_List ** conv_list,
char * format_in,
char * encoding_in,
FO_Present_Types format_out,
void * data_obj,
NET_Converter * converter_func)
{
XP_List * list_ptr = *conv_list;
net_ConverterStruct * converter_struct_ptr;
net_ConverterStruct * new_converter_struct;
net_ConverterElement *elem;
int f_in_type;
XP_List *pList;
int i;
if (needInit) { /* MWH - this will only happen once. It is pretty ugly,
but I don't know how to get around it. */
needInit = FALSE;
for (i = 0; i <MAX_FORMATS_OUT;i++) {
net_converter_list[i] = net_decoder_list[i] = 0;
}
}
pList = list_ptr = conv_list[format_out];
/* check for an existing converter with the same format_in and format_out
* and add this to the list if found.
*
* if the list is NULL XP_ListNextObject will return 0
*/
while((converter_struct_ptr = (net_ConverterStruct *) XP_ListNextObject(list_ptr)) != 0){
if(format_out == converter_struct_ptr->format_out)
/* Rewritten to logic equivalent but should-be-faster version:*/
if (((!encoding_in && !converter_struct_ptr->encoding_in) ||
(encoding_in && converter_struct_ptr->encoding_in &&
!PL_strcmp (encoding_in,
converter_struct_ptr->encoding_in)))
&& !PL_strcasecmp(format_in, converter_struct_ptr->format_in)
#ifdef XP_WIN
&& (converter_struct_ptr->bAutomated == autoFlag)
#endif
)
{
/* Add a new converter element to the list */
net_ConverterElement *elem = PR_NEWZAP(net_ConverterElement);
if( elem == (net_ConverterElement *)0 ) return;
elem->converter = converter_func;
elem->data_obj = data_obj;
XP_ListAddObject(converter_struct_ptr->converter_stack, elem);
return;
}
}
/* find out the type of entry format_in is
*/
f_in_type = NET_MIME_EXACT_MATCH;
if(PL_strchr(format_in, '*'))
{
if(!PL_strcmp(format_in, "*"))
f_in_type = NET_WILDCARD_MATCH;
else
f_in_type = NET_MIME_PARTIAL_MATCH;
}
/* if existing converter not found/replaced
* add this converter to the list in
* its order of importance so that we can
* take the first exact or partial fit
*/
new_converter_struct = PR_NEW(net_ConverterStruct);
if(!new_converter_struct) {
return;
}
new_converter_struct->converter_stack = XP_ListNew();
if( new_converter_struct->converter_stack == (XP_List *)0 )
{
PR_Free(new_converter_struct);
return;
}
elem = PR_NEWZAP(net_ConverterElement);
if( elem == (net_ConverterElement *)0 )
{
XP_ListDestroy(new_converter_struct->converter_stack);
PR_Free(new_converter_struct);
return;
}
elem->converter = converter_func;
elem->data_obj = data_obj;
new_converter_struct->format_in = 0;
StrAllocCopy(new_converter_struct->format_in, format_in);
new_converter_struct->encoding_in = (encoding_in
? PL_strdup (encoding_in) : 0);
new_converter_struct->format_out = format_out;
XP_ListAddObject(new_converter_struct->converter_stack, elem);
new_converter_struct->bAutomated = autoFlag;
if(!pList) {
/* if(!*conv_list) */
/* create the list and add this object
* don't worry about order since there
* can't be any
*/
pList = XP_ListNew();
if(!pList)
return; /* big error */
conv_list[format_out] = pList;
XP_ListAddObject(pList, new_converter_struct);
return;
}
if(f_in_type == NET_MIME_EXACT_MATCH)
{
#if defined(XP_WIN) && defined (MOZILLA_CLIENT)
net_ConverterStruct *pRegistered;
XP_List *tempList = pList;
int count = XP_ListCount(tempList);
for (i = 0; i < count; i++) {
pRegistered = (net_ConverterStruct *) XP_ListNextObject(tempList);
if(new_converter_struct->bAutomated == TRUE) {
if(pRegistered->bAutomated == FALSE) {
XP_ListInsertObject (pList, pRegistered, new_converter_struct);
return;
}
}
/* if it is an exact match type
* then we can just add it to the beginning
* of the list
*/
if (!PL_strcasecmp(pRegistered->format_in, new_converter_struct->format_in)
&& ((!pRegistered->encoding_in && !new_converter_struct->format_in)
|| !PL_strcasecmp(pRegistered->encoding_in, new_converter_struct->encoding_in))) {
if(new_converter_struct->bAutomated == TRUE) {
PR_Free( new_converter_struct);
return;
}
// Overwrite
memcpy(pRegistered, new_converter_struct, sizeof(net_ConverterStruct));
PR_Free( new_converter_struct);
return;
}
}
XP_ListInsertObject (pList, pRegistered, new_converter_struct);
#else
XP_ListAddObject(pList, new_converter_struct);
TRACEMSG(("Adding Converter to Beginning of list"));
#endif
}
else if(f_in_type == NET_MIME_PARTIAL_MATCH)
{
/* this is a partial wildcard of the form (image/(star))
* store it at the end of all the exact match pairs
*/
list_ptr = pList;
while((converter_struct_ptr = (net_ConverterStruct *) XP_ListNextObject(list_ptr)) != 0)
{
if(PL_strchr(converter_struct_ptr->format_in, '*'))
{
XP_ListInsertObject (pList,
converter_struct_ptr,
new_converter_struct);
return;
}
}
/* else no * objects in list */
XP_ListAddObjectToEnd(pList, new_converter_struct);
TRACEMSG(("Adding Converter to Middle of list"));
}
else
{
/* this is a very wild wildcard match of the form "*" only.
* It has the least precedence so store it at the end
* of the list. (There must always be at least one
* item in the list (see above))
*/
XP_ListAddObjectToEnd(pList, new_converter_struct);
TRACEMSG(("Adding Converter to end of list"));
}
}
struct net_encoding_converter
{
char *encoding_in;
void *data_obj;
NET_Converter * converter_func;
};
static struct net_encoding_converter *net_all_encoding_converters;
static int net_encoding_converter_size = 0;
static int net_encoding_converter_fp = 0;
PUBLIC void* NET_GETDataObject(XP_List* list, char* mineType, void** obj)
{
net_ConverterStruct* converter_struct_ptr;
*obj = (void*)0;
while((converter_struct_ptr = (net_ConverterStruct *)XP_ListNextObject(list)) != NULL) {
if(converter_struct_ptr->bAutomated) {
if(!PL_strcmp(converter_struct_ptr->format_in, mineType)) {
net_ConverterElement *elem = XP_ListPeekTopObject(converter_struct_ptr->converter_stack);
*obj = (void*)converter_struct_ptr;
return elem->data_obj;
}
}
}
return (void*)0;
}
PUBLIC XP_List* NET_GetRegConverterList(FO_Present_Types iFormatOut)
{
return net_converter_list[iFormatOut];
}
/* register a routine to decode a stream
*/
PUBLIC void
NET_RegisterEncodingConverter(char *encoding_in,
void * data_obj,
NET_Converter * converter_func)
{
/* Don't register anything right now, but remember that we have a
decoder for this so that we can register it hither and yon at
a later date.
*/
if (net_encoding_converter_size <= net_encoding_converter_fp)
{
net_encoding_converter_size += 10;
if (net_all_encoding_converters)
net_all_encoding_converters = (struct net_encoding_converter *)
PR_Realloc (net_all_encoding_converters,
net_encoding_converter_size
* sizeof (*net_all_encoding_converters));
else
net_all_encoding_converters = (struct net_encoding_converter *)
PR_Calloc (net_encoding_converter_size,
sizeof (*net_all_encoding_converters));
}
{ /* Don't register the same decoder twice; having too many
decoders is multiplicatively expensive with respect to the number of
calls to net_RegisterGenericConverterOrDecoder() from the loop inside
NET_RegisterAllEncodingConverters(). */
int i;
for (i=0; i < net_encoding_converter_fp; i++)
if ((net_all_encoding_converters[i].data_obj == data_obj)
&& (net_all_encoding_converters[i].converter_func == converter_func)
&& (strcmp(net_all_encoding_converters[i].encoding_in,encoding_in)
== 0))
return;
}
net_all_encoding_converters [net_encoding_converter_fp].encoding_in
= PL_strdup (encoding_in);
net_all_encoding_converters [net_encoding_converter_fp].data_obj
= data_obj;
net_all_encoding_converters [net_encoding_converter_fp].converter_func
= converter_func;
net_encoding_converter_fp++;
}
#ifdef MOZILLA_CLIENT
void
NET_DumpDecoders()
{
#ifdef DEBUG
net_ConverterStruct * cs_ptr;
XP_List *list_ptr = net_decoder_list[FO_PRESENT];
while((cs_ptr = XP_ListNextObject(list_ptr)))
{
char *msg = PR_smprintf("in: %s out: %d\n",cs_ptr->encoding_in, cs_ptr->format_out);
TRACEMSG(("%s", msg));
FREE(msg);
}
#endif /* DEBUG */
}
/* register an encoding converter that is used for everything,
* no exeptions
* this is necessary for chunked encoding
*/
MODULE_PRIVATE void
NET_RegisterUniversalEncodingConverter(char *encoding_in,
void * data_obj,
NET_Converter * converter_func)
{
int i;
/* for each list in the net_decoder_list array */
for (i = 0; i < MAX_FORMATS_OUT; i++)
{
net_RegisterGenericConverterOrDecoder (net_decoder_list,
"*",
encoding_in,
i, /* format out */
data_obj,
converter_func);
}
}
void
NET_RegisterAllEncodingConverters (char *format_in,
FO_Present_Types format_out)
{
int i;
#ifdef XP_UNIX
/* On Unix at least, there should be *some* registered... */
assert (net_encoding_converter_fp > 0);
#endif
for (i = 0; i < net_encoding_converter_fp; i++)
{
char *encoding_in = net_all_encoding_converters [i].encoding_in;
void *data_obj = net_all_encoding_converters [i].data_obj;
NET_Converter *func = net_all_encoding_converters [i].converter_func;
net_RegisterGenericConverterOrDecoder (net_decoder_list,
format_in,
encoding_in,
format_out,
data_obj,
func);
net_RegisterGenericConverterOrDecoder (net_decoder_list,
format_in,
encoding_in,
format_out | FO_CACHE_ONLY,
data_obj,
func);
net_RegisterGenericConverterOrDecoder (net_decoder_list,
format_in,
encoding_in,
format_out | FO_ONLY_FROM_CACHE,
data_obj,
func);
}
}
#endif /* MOZILLA_CLIENT */
/* Register a routine to convert between format_in and format_out
*
*/
#if (defined(XP_WIN) || defined(XP_OS2)) && defined(MOZILLA_CLIENT)
/* Reroute XP handling of streams for windows.
* MWH -This routine should not be called recursively.
It rely on the static global variable to set the
* automatedflag. The reason for this is I don't to
change the API on NET_RegisterContentTypeConverter
because some other group still depend on this API.
* If we decided to change API, please fix this.
*/
PUBLIC void
NET_RegContentTypeConverter (char * format_in,
FO_Present_Types format_out,
void * data_obj,
NET_Converter * converter_func,
Bool bAutomated)
{
autoFlag = bAutomated;
NET_RegisterContentTypeConverter (format_in, format_out,
data_obj,
converter_func);
autoFlag = FALSE;
}
#endif
PUBLIC void
NET_RegisterContentTypeConverter (char * format_in,
FO_Present_Types format_out,
void * data_obj,
NET_Converter * converter_func)
{
net_RegisterGenericConverterOrDecoder(net_converter_list,
format_in,
0,
format_out,
data_obj,
converter_func);
}
#ifdef MOZILLA_CLIENT
#ifdef XP_UNIX
#include "cvview.h"
#include "cvextcon.h"
/* register a mime type and a command to be executed
*
* if stream_block_size is zero then the data will be completely
* pooled and the external viewer called with the filename.
* if stream_block_size is greater than zero the viewer will be
* called with a popen and the stream_block_size will be used as
* the maximum size of each buffer to pass to the viewer
*/
MODULE_PRIVATE void
NET_RegisterExternalViewerCommand(char * format_in,
char * system_command,
unsigned int stream_block_size)
{
CV_ExtViewStruct * new_obj = PR_NEW(CV_ExtViewStruct);
if(!new_obj)
return;
memset(new_obj, 0, sizeof(CV_ExtViewStruct));
/* make a new copy of the command so it can be passed
* as the data object
*/
StrAllocCopy(new_obj->system_command, system_command);
new_obj->stream_block_size = stream_block_size;
/* register the routine
*/
NET_RegisterContentTypeConverter(format_in, FO_PRESENT, new_obj, NET_ExtViewerConverter);
/* Also register the content-encoding converters on this type.
Those get registered only on types we know how to display,
either internally or externally - and don't get registered
on types we know nothing about.
*/
NET_RegisterAllEncodingConverters (format_in, FO_PRESENT);
}
/* removes all external viewer commands
*/
PUBLIC void
NET_ClearExternalViewerConverters(void)
{
XP_List * list_ptr;
XP_List *temp_list;
net_ConverterStruct * converter_struct_ptr;
int i;
for (i = 0; i <MAX_FORMATS_OUT; i++) {
list_ptr = temp_list = net_converter_list[i];
while((converter_struct_ptr =
(net_ConverterStruct *) XP_ListNextObject(list_ptr)))
{
XP_List *new;
net_ConverterElement *elem;
new = XP_ListNew();
if( new == (XP_List *)0 ) return;
while( (elem = XP_ListRemoveTopObject(converter_struct_ptr->converter_stack)) != (net_ConverterElement *)0 )
{
if( elem->converter == NET_ExtViewerConverter )
{
PR_FREEIF(elem->data_obj);
PR_Free(elem);
continue;
}
else
{
XP_ListAddObjectToEnd(new, elem);
}
}
XP_ListDestroy(converter_struct_ptr->converter_stack);
if( XP_ListCount(new) > 0 )
{
converter_struct_ptr->converter_stack = new;
}
else
{
XP_ListDestroy(new);
XP_ListRemoveObject(temp_list, converter_struct_ptr);
PR_Free(converter_struct_ptr->format_in);
PR_Free(converter_struct_ptr->encoding_in);
PR_Free(converter_struct_ptr);
}
}
}
}
/* removes all registered converters of any kind
*/
PUBLIC void
NET_ClearAllConverters(void)
{
net_ConverterStruct * aConverter;
net_ConverterElement * aConverterStackElement;
XP_List * theList;
int i;
/* for each list in the net_converter_list array */
for (i = 0; i < MAX_FORMATS_OUT; i++) {
theList = net_converter_list[i];
/* Traverse it, removing each converter, and freeing its data */
while( aConverter = (net_ConverterStruct *) XP_ListRemoveTopObject(theList) )
{
FREEIF(aConverter->format_in);
FREEIF(aConverter->encoding_in);
while( aConverterStackElement = XP_ListRemoveTopObject(aConverter->converter_stack) )
{
#ifdef XP_UNIX
if(aConverterStackElement->converter == NET_ExtViewerConverter)
PR_FREEIF(aConverterStackElement->data_obj);
#endif /* XP_UNIX */
PR_Free(aConverterStackElement);
}
XP_ListDestroy(aConverter->converter_stack);
FREE(aConverter);
}
XP_ListDestroy(theList);
net_converter_list[i] = NULL;
}
/* for each list in the net_decoder_list array */
for (i = 0; i < MAX_FORMATS_OUT; i++) {
theList = net_decoder_list[i];
/* Traverse it, removing each converter, and freeing its data */
while( aConverter = (net_ConverterStruct *) XP_ListRemoveTopObject(theList) )
{
FREEIF(aConverter->format_in);
FREEIF(aConverter->encoding_in);
while( aConverterStackElement = XP_ListRemoveTopObject(aConverter->converter_stack) )
{
#ifdef XP_UNIX
if(aConverterStackElement->converter == NET_ExtViewerConverter)
PR_FREEIF(aConverterStackElement->data_obj);
#endif /* XP_UNIX */
PR_Free(aConverterStackElement);
}
XP_ListDestroy(aConverter->converter_stack);
FREE(aConverter);
}
XP_ListDestroy(theList);
net_decoder_list[i] = NULL;
}
}
/* register an external program to act as a content-type
* converter
*/
MODULE_PRIVATE void
NET_RegisterExternalConverterCommand(char * format_in,
int format_out,
char * system_command,
char * new_format)
{
CV_ExtConverterStruct * new_obj = PR_NEW(CV_ExtConverterStruct);
if(!new_obj)
return;
memset(new_obj, 0, sizeof(CV_ExtConverterStruct));
/* make a new copy of the command so it can be passed
* as the data object
*/
StrAllocCopy(new_obj->command, system_command);
StrAllocCopy(new_obj->new_format, new_format);
new_obj->is_encoding_converter = FALSE;
/* register the routine
*/
NET_RegisterContentTypeConverter(format_in, format_out, new_obj, NET_ExtConverterConverter);
}
/* register an external program to act as a content-encoding
* converter
*/
PUBLIC void
NET_RegisterExternalDecoderCommand (char * format_in,
char * format_out,
char * system_command)
{
CV_ExtConverterStruct * new_obj = PR_NEW(CV_ExtConverterStruct);
if(!new_obj)
return;
memset(new_obj, 0, sizeof(CV_ExtConverterStruct));
/* make a new copy of the command so it can be passed
* as the data object
*/
StrAllocCopy(new_obj->command, system_command);
StrAllocCopy(new_obj->new_format, format_out);
new_obj->is_encoding_converter = TRUE;
/* register the routine
*/
NET_RegisterEncodingConverter (format_in, new_obj,
NET_ExtConverterConverter);
}
#endif /* XP_UNIX */
#endif /* MOZILLA_CLIENT */
/* NewMKStream
* Utility to create a new initialized NET_StreamClass object
*/
NET_StreamClass *
NET_NewStream (char *name,
MKStreamWriteFunc process,
MKStreamCompleteFunc complete,
MKStreamAbortFunc abort,
MKStreamWriteReadyFunc ready,
void *streamData,
MWContext *windowID)
{
NET_StreamClass *stream = PR_NEW (NET_StreamClass);
if (!stream)
return nil;
stream->name = name;
stream->window_id = windowID;
stream->data_object = streamData;
stream->put_block = process;
stream->complete = complete;
stream->abort = abort;
stream->is_write_ready = ready;
return stream;
}
PRIVATE XP_List *
net_GetConverterOrDecoderList(XP_List ** conv_list,
char * format_in,
char * encoding_in,
FO_Present_Types format_out)
{
XP_List * list_ptr = *conv_list;
net_ConverterStruct * converter_struct_ptr;
while((converter_struct_ptr = (net_ConverterStruct *) XP_ListNextObject(list_ptr)) != 0)
if(format_out == converter_struct_ptr->format_out)
if(!PL_strcasecmp(format_in, converter_struct_ptr->format_in)
&& ((!encoding_in && !converter_struct_ptr->encoding_in) ||
(encoding_in && converter_struct_ptr->encoding_in &&
!PL_strcmp (encoding_in,
converter_struct_ptr->encoding_in)))
)
{
return converter_struct_ptr->converter_stack;
}
return (XP_List *)0;
}
PUBLIC void
NET_DeregisterContentTypeConverter(char *format_in, FO_Present_Types format_out)
{
XP_List *l;
net_ConverterElement *elem;
l = net_GetConverterOrDecoderList(net_converter_list, format_in, 0, format_out);
if( l == (XP_List *)0 ) return;
elem = XP_ListRemoveTopObject(l);
# ifdef XP_UNIX
/* total kludge!! */
if( elem->converter == NET_ExtViewerConverter )
PR_FREEIF(elem->data_obj);
# endif
PR_Free(elem);
return;
}
#ifdef DEBUG
MODULE_PRIVATE void
NET_DisplayStreamInfoAsHTML(ActiveEntry *cur_entry)
{
char *buffer = (char*)PR_Malloc(2048);
NET_StreamClass * stream;
int i;
static char *fo_names[] = {
/* 0 */ "(unknown)",
/* 1 */ "Present",
/* 2 */ "Internal Image",
/* 3 */ "Out to Proxy Client",
/* 4 */ "View Source",
/* 5 */ "Save As",
/* 6 */ "Save as Text",
/* 7 */ "Save as Postscript",
/* 8 */ "Quote Message",
/* 9 */ "Mail To",
/* 10 */ "OLE Network",
/* 11 */ "Multipart Image",
/* 12 */ "Embed",
/* 13 */ "Print",
/* 14 */ "Plugin",
/* 15 */ "Append to Folder",
/* 16 */ "Do Java",
/* 17 */ "Byterange",
/* 18 */ "EDT Save Image",
/* 19 */ "Edit",
/* 20 */ "Load HTML Help Map File",
/* 21 */ "Save to News DB",
/* 22 */ "Open Draft",
};
if(!buffer)
{
cur_entry->status = MK_UNABLE_TO_CONVERT;
return;
}
StrAllocCopy(cur_entry->URL_s->content_type, TEXT_HTML);
cur_entry->format_out = CLEAR_CACHE_BIT(cur_entry->format_out);
stream = NET_StreamBuilder(cur_entry->format_out,
cur_entry->URL_s,
cur_entry->window_id);
if(!stream)
{
cur_entry->status = MK_UNABLE_TO_CONVERT;
FREE(buffer);
return;
}
/* define a macro to push a string up the stream
* and handle errors
*/
#define PUT_PART(part) \
cur_entry->status = (*stream->put_block)(stream, \
part ? part : "Unknown", \
part ? PL_strlen(part) : 7); \
if(cur_entry->status < 0) \
goto END;
sprintf(buffer,
"<html><head><title>Information about the Netscape streams configuration</title></head>\n"
"<body><h1>Information about the Netscape streams configuration</h1>\n"
);
PUT_PART(buffer);
sprintf(buffer, "<h2>Converter List</h2>\n<ul>");
PUT_PART(buffer);
for( i = 0; i < MAX_FORMATS_OUT; i++ )
{
int j = i & ~FO_CACHE_ONLY & ~FO_ONLY_FROM_CACHE;
XP_List *list_ptr = net_converter_list[i];
net_ConverterStruct *csp;
sprintf(buffer, "<li><ul><p>%s", j < sizeof(fo_names)/sizeof(fo_names[0]) ?
fo_names[j] : fo_names[0]);
PUT_PART(buffer);
if( i & FO_CACHE_ONLY )
{
sprintf(buffer, " | Cache Only");
PUT_PART(buffer);
}
if( i & FO_ONLY_FROM_CACHE )
{
sprintf(buffer, " | Only From Cache");
PUT_PART(buffer);
}
sprintf(buffer, " [%d]</p>", i);
PUT_PART(buffer);
while( (csp = (net_ConverterStruct *)XP_ListNextObject(list_ptr)) != (net_ConverterStruct *)0 )
{
XP_List *stack = csp->converter_stack;
int stack_count = XP_ListCount(stack);
net_ConverterElement *elem;
sprintf(buffer,
"<li>Format In: %s<br>\n"
"Encoding In: %s<br>\n"
"Present Type: %d<br>\n"
"%s<br><ol>%d Converter%s:\n",
(csp->format_in != (char *)0) ? csp->format_in : "(null)",
(csp->encoding_in != (char *)0) ? csp->encoding_in : "(null)",
csp->format_out,
csp->bAutomated ? "Automated" : "Not automated",
stack_count, (stack_count == 1) ? "" : "s");
PUT_PART(buffer);
while( (elem = (net_ConverterElement *)XP_ListNextObject(stack)) != (net_ConverterElement *)0 )
{
#if defined(__sun) && !defined(SVR4)
sprintf(buffer, "<li>Converter: %lu<br>Object: %lu<br>\n",
elem->converter, elem->data_obj);
#else
sprintf(buffer, "<li>Converter: %p<br>Object: %p<br>\n",
elem->converter, elem->data_obj);
#endif
PUT_PART(buffer);
}
sprintf(buffer, "<br></ol>\n");
PUT_PART(buffer);
}
sprintf(buffer, "</ul>\n");
PUT_PART(buffer);
}
sprintf(buffer, "</ul>\n");
PUT_PART(buffer);
sprintf(buffer, "<h2>Decoder List</h2>\n<ul>");
PUT_PART(buffer);
for( i = 0; i < MAX_FORMATS_OUT; i++ )
{
int j = i & ~FO_CACHE_ONLY & ~FO_ONLY_FROM_CACHE;
XP_List *list_ptr = net_decoder_list[i];
net_ConverterStruct *csp;
sprintf(buffer, "<li><ul><p>%s", j < sizeof(fo_names)/sizeof(fo_names[0]) ?
fo_names[j] : fo_names[0]);
PUT_PART(buffer);
if( i & FO_CACHE_ONLY )
{
sprintf(buffer, " | Cache Only");
PUT_PART(buffer);
}
if( i & FO_ONLY_FROM_CACHE )
{
sprintf(buffer, " | Only From Cache");
PUT_PART(buffer);
}
sprintf(buffer, " [%d]</p>", i);
PUT_PART(buffer);
while( (csp = (net_ConverterStruct *)XP_ListNextObject(list_ptr)) != (net_ConverterStruct *)0 )
{
XP_List *stack = csp->converter_stack;
int stack_count = XP_ListCount(stack);
net_ConverterElement *elem;
sprintf(buffer,
"<li>Format In: %s<br>\n"
"Encoding In: %s<br>\n"
"Present Type: %d<br>\n"
"%s<br><ol>%d Converter%s:\n",
(csp->format_in != (char *)0) ? csp->format_in : "(null)",
(csp->encoding_in != (char *)0) ? csp->encoding_in : "(null)",
csp->format_out,
csp->bAutomated ? "Automated" : "Not automated",
stack_count, (stack_count == 1) ? "" : "s");
PUT_PART(buffer);
while( (elem = (net_ConverterElement *)XP_ListNextObject(stack)) != (net_ConverterElement *)0 )
{
#if defined(__sun) && !defined(SVR4)
sprintf(buffer, "<li>Converter: %lu<br>Object: %lu<br>\n",
elem->converter, elem->data_obj);
#else
sprintf(buffer, "<li>Converter: %p<br>Object: %p<br>\n",
elem->converter, elem->data_obj);
#endif
PUT_PART(buffer);
}
sprintf(buffer, "<br></ol>\n");
PUT_PART(buffer);
}
sprintf(buffer, "</ul>\n");
PUT_PART(buffer);
}
sprintf(buffer, "</ul>\n");
PUT_PART(buffer);
END:
PR_Free(buffer);
if( cur_entry->status < 0 )
(*stream->abort)(stream, cur_entry->status);
else
(*stream->complete)(stream);
return;
}
#endif /* DEBUG */
#ifdef PROFILE
#pragma profile off
#endif
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