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gecko-dev/network/module/nsStubContext.cpp
dp%netscape.com 94344009c8 Landing xpcom20/21 branch.
1999-05-26 01:38:36 +00:00

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* 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.
*/
#include "nsStubContext.h"
#include "net.h"
#include "mktrace.h"
#include "structs.h"
#include "ctxtfunc.h"
#include "xp_list.h"
#include "plstr.h"
#include "fe_proto.h" // Needed for prototype of FE_Alert().
#include "proto.h" // Needed for prototype of XP_FindContextOfType().
#include "nsString.h"
#include "nsIStreamListener.h"
#include "nsINetSupport.h"
#include "nsNetStream.h"
/* forward declaration */
extern "C" void NET_ResumeWithAuth (void *);
void free_stub_context(MWContext *window_id);
/****************************************************************************/
/* Beginning of MWContext Evil!!! */
/* ------------------------------- */
/* */
/* Define a dummy MWContext where all of the upcalls are stubbed out. */
/* */
/****************************************************************************/
PRIVATE int
stub_noop(int x, ...)
{
#ifdef XP_MAC
#pragma unused (x)
#endif
/* DebugBreak(); */
return 0;
}
static nsIStreamListener *getStreamListener(URL_Struct *URL_s)
{
nsIStreamListener *res = NULL;
if (URL_s && URL_s->fe_data) {
/*
* Retrieve the nsConnectionInfo object from the fe_data field
* of the URL_Struct...
*/
nsConnectionInfo *pConn = (nsConnectionInfo *)URL_s->fe_data;
if (pConn) {
res = pConn->pConsumer;
}
}
NS_IF_ADDREF(res);
return res;
}
static NS_DEFINE_IID(kINetSupportIID, NS_INETSUPPORT_IID);
static nsINetSupport *getNetSupport(URL_Struct *URL_s)
{
nsINetSupport *netSupport = nsnull;
/* Access the nsConnectionInfo object off of the URL Struct fe_data */
if ((nsnull != URL_s) && (nsnull != URL_s->fe_data)) {
nsConnectionInfo *pConn = (nsConnectionInfo *)URL_s->fe_data;
/* Now get the nsIURL held by the nsConnectionInfo... */
if ((nsnull != pConn) && (nsnull != pConn->pURL)) {
nsISupports *container;
/* The nsINetSupport interface will be implemented by the container */
nsresult err = pConn->pURL->GetContainer(&container);
if (NS_SUCCEEDED(err) && (nsnull != container)) {
container->QueryInterface(kINetSupportIID, (void **) &netSupport);
NS_RELEASE(container);
}
}
}
return netSupport;
}
PRIVATE
void stub_Alert(MWContext *context,
const char *msg)
{
nsINetSupport *ins;
if (nsnull != (ins = getNetSupport(context->modular_data))) {
nsAutoString str(msg);
ins->Alert(str);
NS_RELEASE(ins);;
}
/* No nsINetSupport interface... */
else {
printf("%cAlert: %s", '\007', msg);
}
}
extern "C" void FE_Alert(MWContext *context, const char *msg)
{
stub_Alert(context, msg);
}
#if defined (WIN32)
extern "C" char * FE_GetProgramDirectory(char *buffer, int length) {
printf("XXX: returning c:\\temp\\ for the FE_GetProgramDirectory!\n");
strcpy(buffer, "c:\\temp\\");
return buffer;
}
#elif defined (XP_UNIX)
extern "C" char * fe_GetProgramDirectory(char *buffer, int length) {
printf("XXX: returning /tmp for the fe_GetProgramDirectory!\n");
strcpy(buffer, "/tmp/");
return buffer;
}
#endif
PRIVATE
XP_Bool stub_Confirm(MWContext *context,
const char *msg)
{
nsINetSupport *ins;
XP_Bool bResult = FALSE;
if (nsnull != (ins = getNetSupport(context->modular_data))) {
nsAutoString str(msg);
bResult = ins->Confirm(str);
NS_RELEASE(ins);
}
/* No nsINetSupport interface... */
else {
printf("%cConfirm: %s (y/n)? ", '\007', msg);
char c;
for (;;) {
c = getchar();
if (tolower(c) == 'y') {
bResult = TRUE;
}
if (tolower(c) == 'n') {
bResult = FALSE;
}
}
}
return bResult;
}
PRIVATE
char *stub_Prompt(MWContext *context,
const char *msg,
const char *def)
{
nsINetSupport *ins;
char *result = nsnull;
if (nsnull != (ins = getNetSupport(context->modular_data))) {
nsAutoString str(msg);
nsAutoString defStr(def);
nsAutoString res;
if (ins->Prompt(msg, defStr, res)) {
NS_RELEASE(ins);
result = res.ToNewCString();
}
NS_RELEASE(ins);
}
/* No nsINetSupport interface... */
else {
char buf[256];
printf("%s\n", msg);
printf("%cPrompt (default=%s): ", '\007', def);
fgets(buf, sizeof buf, stdin);
if (PL_strlen(buf)) {
result = PL_strdup(buf);
} else {
result = PL_strdup(def);
}
}
return result;
}
// Choose between using the command line and the UI for getting the new password
#if 1
#include "nsIComponentManager.h"
#include "nsIBlockingNotification.h"
#include "nsAppShellCIDs.h"
#include "plevent.h"
static NS_DEFINE_IID(kProtocolHelperCID, NS_PROTOCOL_HELPER_CID);
// static NS_DEFINE_IID(kDefaultNotificationCID, NS_DEFAULT_NOTIFICATION_CID);
static NS_DEFINE_IID(kIBlockingNotificationObserverIID,
NS_IBLOCKINGNOTIFICATION_OBSERVER_IID);
static NS_DEFINE_IID(kIBlockingNotificationIID, NS_IBLOCKINGNOTIFICATION_IID);
/*-------------------- nsDefaultNotification ----------------------------*/
// our notification object
class nsDefaultNotification : public nsIBlockingNotification
{
public:
nsDefaultNotification();
/* nsISupports interface... */
NS_DECL_ISUPPORTS
/* nsIBlockingNotification interface... */
NS_IMETHOD IsBlocked(nsIURL *aURL, PRBool *aResult);
NS_IMETHOD Resume(nsIURL *aUrl, void *aExtraInfo);
};
nsDefaultNotification::nsDefaultNotification()
{
NS_INIT_REFCNT();
}
/*
* Implementations of nsISupports interface methods...
*/
NS_IMPL_ADDREF(nsDefaultNotification);
NS_IMPL_RELEASE(nsDefaultNotification);
NS_IMPL_QUERY_INTERFACE(nsDefaultNotification, kIBlockingNotificationIID);
NS_IMETHODIMP
nsDefaultNotification::IsBlocked(nsIURL *aURL, PRBool *aResult)
{
nsresult rv = NS_NOTIFY_BLOCKED;
return rv;
}
NS_IMETHODIMP
nsDefaultNotification::Resume(nsIURL *aURL, void *aExtraInfo)
{
nsresult rv = NS_NOTIFY_SUCCEEDED;
NET_ResumeWithAuth((void *) aExtraInfo);
return rv;
}
/*--------------------------------------------------------------*/
#if 0
#include "nsXPComFactory.h"
/* forward declaration */
class nsDefaultNotification;
NS_DEF_FACTORY(DefaultNotification,nsDefaultNotification)
nsresult NS_NewDefaultNotificationFactory(nsIFactory** aResult)
{
nsresult rv = NS_OK;
nsIFactory* inst;
inst = new nsDefaultNotificationFactory;
if (nsnull == inst) {
rv = NS_ERROR_OUT_OF_MEMORY;
}
else {
NS_ADDREF(inst);
}
*aResult = inst;
return rv;
}
#endif
/*--------------------------------------------------------------*/
PRIVATE XP_Bool
_stub_PromptUsernameAndPassword(MWContext *context,
const char *msg,
char **username,
char **password,
void *closure)
{
nsIBlockingNotificationObserver *helper;
nsIBlockingNotification *caller;
nsConnectionInfo *pConn = nsnull;
URL_Struct *URL_s = context->modular_data;
nsIURL *base = nsnull;
nsresult rv;
printf ("stub_PromptUsernameAndPassword()\n");
/* Access the nsConnectionInfo object off of the URL Struct fe_data */
if ((nsnull != URL_s) && (nsnull != URL_s->fe_data)) {
pConn = (nsConnectionInfo *)URL_s->fe_data;
}
#if 0
// create an object that calls Resume() XXX
rv = nsComponentManager::CreateInstance(kProtocolHelperCID, nsnull, kIBlockingNotificationIID, (void**)&caller);
if (NS_FAILED(rv)) {
return FALSE;
}
#else
caller = new nsDefaultNotification;
if ( ! caller )
return FALSE;
#endif
// build an nsIURL
rv = NS_NewURL(&base, URL_s->address);
if (NS_FAILED(rv)) {
return FALSE;
}
rv = nsComponentManager::CreateInstance(kProtocolHelperCID, nsnull, kIBlockingNotificationObserverIID, (void**)&helper);
if (NS_SUCCEEDED(rv)) {
rv = helper->Notify(caller, base, pConn->mRequestingThread, 0, closure);
NS_RELEASE(helper);
} else {
return FALSE;
}
*username = nsnull;
*password = nsnull;
// XXX we can't return TRUE anymore, since the ProtocolHelper is
// is still waiting for the user ...
// return TRUE;
return FALSE;
}
#else
PRIVATE XP_Bool _stub_PromptUsernameAndPassword(MWContext *context,
const char *msg,
char **username,
char **password,
void *closure)
{
nsINetSupport *ins;
XP_Bool bResult = FALSE;
#ifndef XP_UNIX
if (nsnull != (ins = getNetSupport(context->modular_data))) {
nsAutoString str(msg);
nsAutoString userStr(*username);
nsAutoString pwdStr(*password);
if (ins->PromptUserAndPassword(msg, userStr, pwdStr)) {
*username = userStr.ToNewCString();
*password = pwdStr.ToNewCString();
bResult = TRUE;
}
NS_RELEASE(ins);
}
/* No nsINetSupport interface... */
else
#endif /* !XP_UNIX */
{
NET_AuthClosure *auth_closure = (NET_AuthClosure *) closure;
char buf[256];
char *tmp_user = *username;
char *tmp_pass = *password;
printf("%s\n", msg);
printf("%cUser: ", '\007');
fgets(buf, sizeof buf, stdin);
if (strlen(buf)) {
tmp_user = PL_strdup(buf);
tmp_user[strlen(tmp_user)-1] = '\0';
}
printf("%cPassword: ", '\007');
fgets(buf, sizeof buf, stdin);
if (strlen(buf)) {
tmp_pass = PL_strdup(buf);
tmp_pass[strlen(tmp_pass)-1] = '\0';
}
if (tmp_user) {
bResult = FALSE; /* XXX false because the callback will finalize */
auth_closure->user = tmp_user;
auth_closure->pass = tmp_pass;
NET_ResumeWithAuth (closure);
} else {
PR_FREEIF(tmp_user);
PR_FREEIF(tmp_pass);
}
}
return bResult;
}
#endif //0
PRIVATE
char *_stub_PromptPassword(MWContext *context,
char *msg,
XP_Bool *remember,
XP_Bool is_secure,
void *closure)
{
nsINetSupport *ins;
char *result = nsnull;
#ifndef XP_UNIX
if (nsnull != (ins = getNetSupport(context->modular_data))) {
nsAutoString str(msg);
nsAutoString res;
if (ins->PromptPassword(msg, res)) {
result = res.ToNewCString();
}
NS_RELEASE(ins);
}
/* No nsINetSupport interface... */
else
#endif /* !XP_UNIX */
{
NET_AuthClosure *auth_closure = (NET_AuthClosure *) closure;
char buf[256];
printf("%s\n", msg);
printf("%cPassword: ", '\007');
fgets(buf, sizeof buf, stdin);
if (PL_strlen(buf)) {
auth_closure->pass = PL_strdup(buf);
auth_closure->pass[strlen(buf)-1] = '\0';
NET_ResumeWithAuth (closure);
}
}
return result;
}
extern "C" char *
stub_PromptPassword(MWContext *context,
char *msg,
XP_Bool *remember,
XP_Bool is_secure,
void * closure)
{
return _stub_PromptPassword(context, msg, remember,
is_secure, closure);
}
extern "C" XP_Bool
stub_PromptUsernameAndPassword(MWContext *context,
const char *msg,
char **username,
char **password,
void *closure)
{
return _stub_PromptUsernameAndPassword(context, msg,
username, password,
closure);
}
PRIVATE void stub_GraphProgressInit(MWContext *context,
URL_Struct *URL_s,
int32 content_length)
{
nsIStreamListener *pListener;
if (URL_s->load_background)
return;
if (nsnull != (pListener = getStreamListener(URL_s))) {
nsConnectionInfo *pConn = (nsConnectionInfo *) URL_s->fe_data;
NS_ASSERTION(content_length >= 0, "negative content_length");
pListener->OnProgress(pConn->pURL, 0, (PRUint32)content_length);
NS_RELEASE(pListener);
}
}
PRIVATE void stub_GraphProgress(MWContext *context,
URL_Struct *URL_s,
int32 bytes_received,
int32 bytes_since_last_time,
int32 content_length)
{
nsIStreamListener *pListener;
if (URL_s->load_background)
return;
if (nsnull != (pListener = getStreamListener(URL_s))) {
nsConnectionInfo *pConn = (nsConnectionInfo *) URL_s->fe_data;
NS_ASSERTION(bytes_received >= 0, "negative bytes_received");
NS_ASSERTION(content_length >= 0, "negative content_length");
pListener->OnProgress(pConn->pURL, (PRUint32)bytes_received,
(PRUint32)content_length);
NS_RELEASE(pListener);
}
}
PRIVATE void stub_GraphProgressDestroy(MWContext *context,
URL_Struct *URL_s,
int32 content_length,
int32 total_bytes_read)
{
/*
* XXX: Currently this function never calls OnProgress(...) because
* netlib calls FE_GraphProgressDestroy(...) after closing the
* stream... So, OnStopBinding(...) has already been called and
* the nsConnectionInfo->pConsumer has been released and NULLed...
*/
nsIStreamListener *pListener;
if (URL_s->load_background)
return;
if (nsnull != (pListener = getStreamListener(URL_s))) {
nsConnectionInfo *pConn = (nsConnectionInfo *) URL_s->fe_data;
NS_ASSERTION(total_bytes_read >= 0, "negative total_bytes_read");
NS_ASSERTION(content_length >= 0, "negative content_length");
pListener->OnProgress(pConn->pURL, (PRUint32)total_bytes_read,
(PRUint32)content_length);
// XXX The comment above no longer applies, and this function does
// get called...
NS_RELEASE(pListener);
}
}
PRIVATE void stub_Progress(MWContext *context, const char *msg)
{
nsIStreamListener *pListener;
if (nsnull != (pListener = getStreamListener(context->modular_data))) {
nsConnectionInfo *pConn =
(nsConnectionInfo *) context->modular_data->fe_data;
nsAutoString status(msg);
pListener->OnStatus(pConn->pURL, status.GetUnicode());
NS_RELEASE(pListener);
} else {
printf("%s\n", msg);
}
}
PRIVATE void stub_AllConnectionsComplete(MWContext *context)
{
}
#define MAKE_FE_TYPES_PREFIX(func) func##_t
#define MAKE_FE_FUNCS_TYPES
#include "mk_cx_fn.h"
#undef MAKE_FE_FUNCS_TYPES
#define stub_CreateNewDocWindow (CreateNewDocWindow_t)stub_noop
#define stub_LayoutNewDocument (LayoutNewDocument_t)stub_noop
#define stub_SetDocTitle (SetDocTitle_t)stub_noop
#define stub_FinishedLayout (FinishedLayout_t)stub_noop
#define stub_TranslateISOText (TranslateISOText_t)stub_noop
#define stub_GetTextInfo (GetTextInfo_t)stub_noop
#define stub_MeasureText (MeasureText_t)stub_noop
#define stub_GetEmbedSize (GetEmbedSize_t)stub_noop
#define stub_GetJavaAppSize (GetJavaAppSize_t)stub_noop
#define stub_GetFormElementInfo (GetFormElementInfo_t)stub_noop
#define stub_GetFormElementValue (GetFormElementValue_t)stub_noop
#define stub_ResetFormElement (ResetFormElement_t)stub_noop
#define stub_SetFormElementToggle (SetFormElementToggle_t)stub_noop
#define stub_FreeFormElement (FreeFormElement_t)stub_noop
#define stub_FreeImageElement (FreeImageElement_t)stub_noop
#define stub_FreeEmbedElement (FreeEmbedElement_t)stub_noop
#define stub_FreeBuiltinElement (FreeBuiltinElement_t)stub_noop
#define stub_FreeJavaAppElement (FreeJavaAppElement_t)stub_noop
#define stub_CreateEmbedWindow (CreateEmbedWindow_t)stub_noop
#define stub_SaveEmbedWindow (SaveEmbedWindow_t)stub_noop
#define stub_RestoreEmbedWindow (RestoreEmbedWindow_t)stub_noop
#define stub_DestroyEmbedWindow (DestroyEmbedWindow_t)stub_noop
#define stub_HideJavaAppElement (HideJavaAppElement_t)stub_noop
#define stub_FreeEdgeElement (FreeEdgeElement_t)stub_noop
#define stub_FormTextIsSubmit (FormTextIsSubmit_t)stub_noop
#define stub_DisplaySubtext (DisplaySubtext_t)stub_noop
#define stub_DisplayText (DisplayText_t)stub_noop
#define stub_DisplayImage (DisplayImage_t)stub_noop
#define stub_DisplayEmbed (DisplayEmbed_t)stub_noop
#define stub_DisplayBuiltin (DisplayBuiltin_t)stub_noop
#define stub_DisplayJavaApp (DisplayJavaApp_t)stub_noop
#define stub_DisplaySubImage (DisplaySubImage_t)stub_noop
#define stub_DisplayEdge (DisplayEdge_t)stub_noop
#define stub_DisplayTable (DisplayTable_t)stub_noop
#define stub_DisplayCell (DisplayCell_t)stub_noop
#define stub_InvalidateEntireTableOrCell (InvalidateEntireTableOrCell_t)stub_noop
#define stub_DisplayAddRowOrColBorder (DisplayAddRowOrColBorder_t)stub_noop
#define stub_DisplaySubDoc (DisplaySubDoc_t)stub_noop
#define stub_DisplayLineFeed (DisplayLineFeed_t)stub_noop
#define stub_DisplayHR (DisplayHR_t)stub_noop
#define stub_DisplayBullet (DisplayBullet_t)stub_noop
#define stub_DisplayFormElement (DisplayFormElement_t)stub_noop
#define stub_DisplayBorder (DisplayBorder_t)stub_noop
#define stub_UpdateEnableStates (UpdateEnableStates_t)stub_noop
#define stub_DisplayFeedback (DisplayFeedback_t)stub_noop
#define stub_ClearView (ClearView_t)stub_noop
#define stub_SetDocDimension (SetDocDimension_t)stub_noop
#define stub_SetDocPosition (SetDocPosition_t)stub_noop
#define stub_GetDocPosition (GetDocPosition_t)stub_noop
#define stub_BeginPreSection (BeginPreSection_t)stub_noop
#define stub_EndPreSection (EndPreSection_t)stub_noop
#define stub_SetProgressBarPercent (SetProgressBarPercent_t)stub_noop
#define stub_SetBackgroundColor (SetBackgroundColor_t)stub_noop
#define stub_Progress (Progress_t)stub_Progress
#define stub_Alert (Alert_t)stub_Alert
#define stub_SetCallNetlibAllTheTime (SetCallNetlibAllTheTime_t)stub_noop
#define stub_ClearCallNetlibAllTheTime (ClearCallNetlibAllTheTime_t)stub_noop
#define stub_GraphProgressInit (GraphProgressInit_t)stub_GraphProgressInit
#define stub_GraphProgressDestroy (GraphProgressDestroy_t)stub_GraphProgressDestroy
#define stub_GraphProgress (GraphProgress_t)stub_GraphProgress
#define stub_UseFancyFTP (UseFancyFTP_t)stub_noop
#define stub_UseFancyNewsgroupListing (UseFancyNewsgroupListing_t)stub_noop
#define stub_FileSortMethod (FileSortMethod_t)stub_noop
#define stub_ShowAllNewsArticles (ShowAllNewsArticles_t)stub_noop
#define stub_Confirm (Confirm_t)stub_Confirm
#define stub_CheckConfirm (CheckConfirm_t)stub_noop
#define stub_SelectDialog (SelectDialog_t)stub_noop
#define stub_Prompt (Prompt_t)stub_Prompt
#define stub_PromptWithCaption (PromptWithCaption_t)stub_noop
#define stub_PromptUsernameAndPassword (PromptUsernameAndPassword_t)stub_PromptUsernameAndPassword
#define stub_PromptPassword (PromptPassword_t)stub_PromptPassword
#define stub_EnableClicking (EnableClicking_t)stub_noop
#define stub_AllConnectionsComplete (AllConnectionsComplete_t)stub_AllConnectionsComplete
#define stub_ImageSize (ImageSize_t)stub_noop
#define stub_ImageData (ImageData_t)stub_noop
#define stub_ImageIcon (ImageIcon_t)stub_noop
#define stub_ImageOnScreen (ImageOnScreen_t)stub_noop
#define stub_SetColormap (SetColormap_t)stub_noop
#ifdef LAYERS
#define stub_EraseBackground (EraseBackground_t)stub_noop
#define stub_SetDrawable (SetDrawable_t)stub_noop
#define stub_GetTextFrame (GetTextFrame_t)stub_noop
#define stub_SetClipRegion (SetClipRegion_t)stub_noop
#define stub_SetOrigin (SetOrigin_t)stub_noop
#define stub_GetOrigin (GetOrigin_t)stub_noop
#define stub_GetTextFrame (GetTextFrame_t)stub_noop
#endif
#define stub_GetDefaultBackgroundColor (GetDefaultBackgroundColor_t)stub_noop
#define stub_LoadFontResource (LoadFontResource_t)stub_noop
#define stub_DrawJavaApp (DrawJavaApp_t)stub_noop
#define stub_HandleClippingView (HandleClippingView_t)stub_noop
/* Just reuse the same set of context functions: */
ContextFuncs stub_context_funcs;
XP_List *stub_context_list = NULL;
MWContext *new_stub_context(URL_Struct *URL_s)
{
static int funcsInitialized = 0;
MWContext *context;
if (!funcsInitialized) {
#define MAKE_FE_FUNCS_PREFIX(f) stub_##f
#define MAKE_FE_FUNCS_ASSIGN stub_context_funcs.
#include "mk_cx_fn.h"
funcsInitialized = 1;
stub_context_list = XP_ListNew();
}
context = (MWContext *)calloc(sizeof(struct MWContext_), 1);
if (nsnull != context) {
context->funcs = &stub_context_funcs;
context->type = MWContextBrowser;
context->modular_data = URL_s;
context->ref_count = 0;
if (nsnull != stub_context_list) {
XP_ListAddObjectToEnd(stub_context_list, context);
}
}
return context;
}
void free_stub_context(MWContext *window_id)
{
TRACEMSG(("Freeing stub context...\n"));
if (window_id) {
if (stub_context_list) {
PRBool result;
result = XP_ListRemoveObject(stub_context_list, window_id);
PR_ASSERT(PR_TRUE == result);
}
free(window_id);
}
}
extern "C" MWContext * XP_FindContextOfType (MWContext * context,
MWContextType type)
{
MWContext *window_id = 0;
/*
* Return the context that was passed in if it is the correct type
*/
if (nsnull != context) {
if (context->type == type) {
window_id = context;
}
}
/*
* Otherwise, the type MUST be a MWBrowserContext, since that is the
* only type of context that is created...
*
* Return the first stub context, since it is as good as any... :-)
*/
else if (MWContextBrowser == type) {
window_id = (MWContext *)XP_ListTopObject(stub_context_list);
}
return window_id;
}
/****************************************************************************/
/* End of MWContext Evil!!! */
/****************************************************************************/
PRIVATE
nsConnectionInfo *GetConnectionInfoFromStream(NET_StreamClass *stream)
{
URL_Struct *URL_s = (URL_Struct *)stream->data_object;
return (URL_s) ? (nsConnectionInfo *)URL_s->fe_data : NULL;
}
/*
* Define a NET_StreamClass which pushes its data into an nsIStream
* and fires off notifications through the nsIStreamListener interface
*/
PRIVATE
void stub_complete(NET_StreamClass *stream)
{
URL_Struct *URL_s = (URL_Struct *)stream->data_object;
nsConnectionInfo *pConn = GetConnectionInfoFromStream(stream);
TRACEMSG(("+++ stream complete.\n"));
/* Close the stream and remove it from the ConnectionInfo... */
pConn->pNetStream->Close();
NS_RELEASE(pConn->pNetStream);
/* Notify the Data Consumer that the Binding has completed... */
if (pConn->pConsumer) {
nsAutoString status;
pConn->pConsumer->OnStopBinding(pConn->pURL, NS_BINDING_SUCCEEDED, status.GetUnicode());
pConn->mStatus = nsConnectionSucceeded;
}
/* Release the URL_Struct hanging off of the data_object */
stream->data_object = NULL;
NET_DropURLStruct(URL_s);
}
PRIVATE
void stub_abort(NET_StreamClass *stream, int status)
{
URL_Struct *URL_s = (URL_Struct *)stream->data_object;
nsConnectionInfo *pConn = GetConnectionInfoFromStream(stream);
TRACEMSG(("+++ stream abort. Status = %d\n", status));
/* Close the stream and remove it from the ConnectionInfo... */
pConn->pNetStream->Close();
NS_RELEASE(pConn->pNetStream);
/* Notify the Data Consumer that the Binding has completed... */
/*
* XXX: Currently, there is no difference between complete and
* abort...
*/
if (pConn->pConsumer) {
nsAutoString status;
pConn->pConsumer->OnStopBinding(pConn->pURL, NS_BINDING_ABORTED, status.GetUnicode());
pConn->mStatus = nsConnectionAborted;
}
/* Release the URL_Struct hanging off of the data_object */
stream->data_object = NULL;
NET_DropURLStruct(URL_s);
}
PRIVATE
int stub_put_block(NET_StreamClass *stream, const char *buffer, int32 length)
{
PRUint32 bytesWritten;
nsresult errorCode;
nsConnectionInfo *pConn = GetConnectionInfoFromStream(stream);
TRACEMSG(("+++ stream put_block. Length = %d\n", length));
/*
* XXX: Sometimes put_block(...) will be called without having
* called is_write_ready(...) first. One case is when a stream
* is interrupted... In this case, Netlib will call put_block(...)
* with the string "Transfer Interrupted!"
*/
NS_ASSERTION(length >= 0, "negative length");
errorCode = pConn->pNetStream->Write(buffer, (PRUint32)length, &bytesWritten);
/* Abort the connection... */
if (NS_BASE_STREAM_EOF == errorCode) {
return -1;
}
if (pConn->pConsumer && (0 < bytesWritten)) {
errorCode = pConn->pConsumer->OnDataAvailable(pConn->pURL, pConn->pNetStream, bytesWritten);
}
/* Abort the connection if an error occurred... */
NS_ASSERTION(bytesWritten >= 0, "negative bytesWritten");
if (NS_FAILED(errorCode) || ((int32)bytesWritten != length)) {
return -1;
}
return 1;
}
PRIVATE
unsigned int stub_is_write_ready(NET_StreamClass *stream)
{
nsresult errorCode;
PRUint32 free_space = 0;
/* URL_Struct *URL_s = (URL_Struct *)stream->data_object; */
nsConnectionInfo *pConn = GetConnectionInfoFromStream(stream);
errorCode = pConn->pNetStream->GetAvailableSpace(&free_space);
/*
* If the InputStream has been closed... Return 1 byte available so
* Netlib will call put_block(...) one more time...
*/
if (NS_BASE_STREAM_EOF == errorCode) {
free_space = 1;
}
TRACEMSG(("+++ stream is_write_ready. Returning %d\n", free_space));
return (int)free_space;
}
extern "C" {
PUBLIC NET_StreamClass *
NET_NGLayoutConverter(FO_Present_Types format_out,
void *converter_obj,
URL_Struct *URL_s,
MWContext *context);
/*
*Find a converter routine to create a stream and return the stream struct
*/
PUBLIC NET_StreamClass *
NET_NGLayoutConverter(FO_Present_Types format_out,
void *converter_obj,
URL_Struct *URL_s,
MWContext *context)
{
NET_StreamClass *stream = NULL;
/*
* Only create a stream if an nsConnectionInfo object is
* available from the fe_data...
*/
if (NULL != URL_s->fe_data) {
stream = (NET_StreamClass *)calloc(sizeof(NET_StreamClass), 1);
if (NULL != stream) {
nsConnectionInfo *pConn;
/*
* Initialize the NET_StreamClass instance...
*/
stream->name = "Stub Stream";
stream->window_id = context;
stream->complete = stub_complete;
stream->abort = stub_abort;
stream->put_block = stub_put_block;
stream->is_write_ready = stub_is_write_ready;
/*
* Retrieve the nsConnectionInfo object from the fe_data field
* of the URL_Struct...
*/
pConn = (nsConnectionInfo *)URL_s->fe_data;
/* Mark the connection as active... */
pConn->mStatus = nsConnectionActive;
/*
* If the URL address has been rewritten by netlib then update
* the cached info in the URL object...
*/
if ((URL_s->address_modified) && (NULL != pConn->pURL)) {
pConn->pURL->SetSpec(URL_s->address);
}
/*
* Create an Async stream unless a blocking stream is already
* available in the ConnectionInfo...
*/
if (NULL == pConn->pNetStream) {
pConn->pNetStream = new nsAsyncStream(8192);
if (NULL == pConn->pNetStream) {
free(stream);
return NULL;
}
NS_ADDREF(pConn->pNetStream);
}
/* Hang the URL_Struct off of the NET_StreamClass */
NET_HoldURLStruct(URL_s);
stream->data_object = URL_s;
#ifdef NOISY
printf("+++ Created a stream for %s\n", URL_s->address);
#endif
/* Notify the data consumer that Binding is beginning...*/
if (nsnull != pConn->pConsumer) {
nsresult rv;
rv = pConn->pConsumer->OnStartBinding(pConn->pURL, URL_s->content_type);
/*
* If OnStartBinding fails, then tear down the NET_StreamClass
* and release all references...
*/
if (NS_OK != rv) {
NET_DropURLStruct(URL_s);
free(stream);
stream = NULL;
/*
* The NET_GetURL(...) exit_routine will clean up the
* nsConnectionInfo and associated objects.
*/
}
}
}
}
return stream;
}
} /* extern "C" */
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