gecko-dev/network/main/autoupdt.c
1998-09-22 04:15:00 +00:00

424 lines
11 KiB
C

/* -*- 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.
*/
#include "mkutils.h"
#include "autoupdt.h"
#include "client.h"
#include "prefapi.h"
#include "prio.h"
#ifndef MAXPATHLEN
#define MAXPATHLEN 1024
#endif
#if defined (WIN32)
extern char * FE_GetProgramDirectory(char *buffer, int length);
#elif defined (XP_UNIX)
extern void fe_GetProgramDirectory( char *, int );
#endif
static int32 autoupdt_getCurrentSize(char *file);
static void autoupdt_free(AutoUpdateConnnection autoupdt);
static void autoupdate_execute(AutoUpdateConnnection autoupdt);
static void autoupdate_flush(AutoUpdateConnnection autoupdt);
static void autoupdate_loadurl(AutoUpdateConnnection autoupdt);
static void autoupdate_TimerCallback(void* data);
static char* autoupdate_AssureDir(char* path);
AutoUpdateConnnection gAutoUpdateConnnection;
static int32
autoupdt_getCurrentSize(char *file)
{
struct stat in_stat;
int stat_result = -1;
stat_result = stat(file, &in_stat);
if (stat_result == 0) {
return in_stat.st_size;
}
return 0;
}
static void
autoupdt_free(AutoUpdateConnnection autoupdt)
{
if (autoupdt == NULL) {
return;
}
PR_FREEIF(autoupdt->url);
PR_FREEIF(autoupdt->outFile);
/* Don't free the autoupdt memory because Timer may still have
* a pointer to it.
*/
memset(autoupdt, '\0', sizeof(AutoUpdateConnnectionStruct));
}
static void
autoupdate_execute(AutoUpdateConnnection autoupdt)
{
#ifdef TEST_AUTOUPDATE
PRBool ok = PR_TRUE;
ok = FE_Confirm(autoupdt->mwcontext,
"A new browser has been downloaded. Should we install it?");
if (ok) {
autoupdate_ExecuteFile(autoupdt->outFile);
}
#endif /* TEST_AUTOUPDATE */
}
static void
autoupdate_flush(AutoUpdateConnnection autoupdt)
{
if (autoupdt == NULL) {
return;
}
if ((autoupdt->cur_len > 0) && (autoupdt->outputBuffer != NULL) &&
(autoupdt->outFile != NULL)) {
FILE* fp = fopen(autoupdt->outFile, "ab+");
if (fp != NULL) {
fwrite(autoupdt->outputBuffer, 1, autoupdt->cur_len, fp);
fclose(fp);
}
autoupdt->start_byte = autoupdt->start_byte + autoupdt->cur_len;
autoupdt->end_byte = autoupdt->start_byte + autoupdt->range;
}
if (autoupdt->outputBuffer != NULL) {
PR_FREEIF(autoupdt->outputBuffer);
}
autoupdt->outputBuffer = NULL;
autoupdt->cur_len = 0;
autoupdt->urls = NULL;
}
unsigned int
autoupdate_write_ready(NET_StreamClass *stream)
{
/* tell it how many bytes you are willing to take */
AutoUpdateConnnection autoupdt = (AutoUpdateConnnection)stream->data_object;
return autoupdt->range;
}
int
autoupdate_write(NET_StreamClass *stream, const char* blob, int32 size)
{
/* stream->data_object holds your connection data.
* return 0 or greater to get more bytes
*/
AutoUpdateConnnection autoupdt = (AutoUpdateConnnection)stream->data_object;
if ((autoupdt == NULL) || (autoupdt->outFile == NULL) ||
(autoupdt->range == 0) || (autoupdt->outputBuffer == NULL)) {
return -1;
}
if (autoupdt->cur_len+size > autoupdt->range) {
autoupdt->outputBuffer = PR_REALLOC(autoupdt->outputBuffer,
autoupdt->cur_len+size);
if (!autoupdt->outputBuffer) {
autoupdt->cur_len = 0;
TRACEMSG(("Out of memory in autoupdate_write\n"));
return -1;
}
}
memcpy(&(autoupdt->outputBuffer[autoupdt->cur_len]), blob, size);
autoupdt->cur_len += size;
if (autoupdt->cur_len >= autoupdt->range) {
/* We got the range of bytes we wanted to get */
return -1;
}
return autoupdt->range;
}
void
autoupdate_abort(NET_StreamClass *stream, int status)
{
/* something bad happened */
AutoUpdateConnnection autoupdt = (AutoUpdateConnnection)stream->data_object;
autoupdate_flush(autoupdt);
}
void
autoupdate_complete(NET_StreamClass *stream)
{
/* the complete function which gets called when the last packet comes in */
AutoUpdateConnnection autoupdt = (AutoUpdateConnnection)stream->data_object;
autoupdate_flush(autoupdt);
}
#ifdef XP_MAC
PR_PUBLIC_API(NET_StreamClass *)
#else
PUBLIC NET_StreamClass *
#endif
autoupdate_Converter(FO_Present_Types format_out, void *data_object,
URL_Struct *URL_s, MWContext *cx)
{
AutoUpdateConnnection autoupdt = (AutoUpdateConnnection) URL_s->fe_data;
if ((autoupdt == NULL) || (autoupdt->url == NULL)) {
return NULL;
}
if (!URL_s->server_can_do_byteranges) {
/* Server doesn't support byte ranges. Stop the autoupdate */
autoupdt_free(autoupdt);
return NULL;
}
TRACEMSG(("Setting up Autoupdate stream. Have URL: %s %s\n",
autoupdt->url, URL_s->address));
return NET_NewStream("AUTOUPDATE", (MKStreamWriteFunc)autoupdate_write,
(MKStreamCompleteFunc)autoupdate_complete,
(MKStreamAbortFunc)autoupdate_abort,
(MKStreamWriteReadyFunc)autoupdate_write_ready,
URL_s->fe_data, cx);
}
void
autoupdate_GetUrlExitFunc (URL_Struct *urls, int status, MWContext *cx)
{
NET_FreeURLStruct (urls);
}
static void
autoupdate_loadurl(AutoUpdateConnnection autoupdt)
{
URL_Struct *urls;
char *range=NULL;
if (autoupdt->url == NULL) {
return;
}
if (NET_AreThereActiveConnections()) {
return;
}
urls = NET_CreateURLStruct(autoupdt->url, NET_DONT_RELOAD);
if (urls == NULL) {
return;
}
urls->fe_data = autoupdt;
urls->range_header = PR_sprintf_append(range, "bytes=%ld-%ld",
autoupdt->start_byte,
autoupdt->end_byte);
autoupdt->urls = urls;
autoupdt->outputBuffer = PR_Malloc(autoupdt->range);
memset(autoupdt->outputBuffer, '\0', autoupdt->range);
autoupdt->cur_len = 0;
autoupdt->status = 1;
NET_GetURL(urls, FO_AUTOUPDATE, autoupdt->mwcontext, autoupdate_GetUrlExitFunc);
}
static void
autoupdate_TimerCallback(void* data)
{
AutoUpdateConnnection autoupdt = (AutoUpdateConnnection)data;
if ((autoupdt == NULL) || (autoupdt->url == NULL)) {
autoupdt_free(autoupdt);
/* We are not setting timer callbacks, thus we can free autoupdt */
PR_FREEIF(autoupdt);
return;
}
if (autoupdt->file_size > autoupdt->start_byte) {
autoupdt->timeout = FE_SetTimeout(autoupdate_TimerCallback,
(void*)autoupdt, autoupdt->interval);
autoupdate_loadurl(autoupdt);
} else {
autoupdate_execute(autoupdt);
}
}
void
autoupdate_suspend()
{
}
void
autoupdate_resume()
{
if (!NET_AreThereActiveConnections())
autoupdate_TimerCallback((void *)gAutoUpdateConnnection);
}
static char*
autoupdate_AssureDir(char* path)
{
char *autoupdt_dir = PR_smprintf("%sautoupdt", path);
if (PR_SUCCESS != PR_Access(autoupdt_dir, PR_ACCESS_WRITE_OK)) {
if ((PR_MkDir(autoupdt_dir, 0777)) < 0) {
/* Creation of directory failed. Don't do autoupdate. */
return NULL;
}
}
return autoupdt_dir;
}
#ifdef XP_MAC
PR_PUBLIC_API(void)
#else
PUBLIC void
#endif
checkForAutoUpdate(void *cx, char* url, int32 file_size)
{
int32 bytes_range;
int32 interval;
char *directory = NULL;
#ifdef WIN32
char Path[_MAX_PATH+1];
#else
char Path[MAXPATHLEN+1];
#endif
char *filename;
char *slash;
PRInt32 cur_size;
AutoUpdateConnnection autoupdt;
XP_Bool enabled;
char *autoupdt_dir;
PREF_GetBoolPref( "autoupdate.background_download_enabled", &enabled);
if (!enabled)
return;
if (PREF_OK != PREF_CopyCharPref("autoupdate.background_download_directory",
&directory)) {
directory = NULL;
} else {
if ((directory) && (XP_STRCMP(directory, "") == 0)) {
directory = NULL;
}
}
if (PREF_OK != PREF_GetIntPref("autoupdate.background_download_byte_range",
&bytes_range)) {
bytes_range = 3000;
}
if (PREF_OK != PREF_GetIntPref("autoupdate.background_download_interval",
&interval)) {
interval = 10000;
}
autoupdt = PR_Malloc(sizeof(AutoUpdateConnnectionStruct));
memset(autoupdt, '\0', sizeof(AutoUpdateConnnectionStruct));
autoupdt->url = copyString(url);
autoupdt->file_size = file_size;
autoupdt->interval = interval;
slash = PL_strrchr(url, '/');
if (slash != NULL) {
filename = ++slash;
} else {
filename = "prg";
}
#ifdef XP_UNIX
if (directory) {
PR_snprintf( Path, MAXPATHLEN, "%s/", directory);
PR_FREEIF(directory);
} else {
directory = getenv("MOZILLA_HOME");
if (directory) {
PR_snprintf( Path, MAXPATHLEN, "%s/", directory);
} else {
fe_GetProgramDirectory( Path, MAXPATHLEN-1 );
}
}
autoupdt_dir = autoupdate_AssureDir(Path);
if (autoupdt_dir != NULL) {
autoupdt->outFile = PR_smprintf("%s/%s", autoupdt_dir, filename);
PR_FREEIF(autoupdt_dir);
}
#elif defined(WIN32)
if (directory) {
PR_snprintf( Path, MAXPATHLEN, "%s\\", directory);
PR_FREEIF(directory);
} else {
FE_GetProgramDirectory( Path, _MAX_PATH );
}
autoupdt_dir = autoupdate_AssureDir(Path);
if (autoupdt_dir != NULL) {
autoupdt->outFile = PR_smprintf("%s\\%s", autoupdt_dir, filename);
PR_FREEIF(autoupdt_dir);
}
#elif defined(MAC)
/* XXX: Fix it for Mac with the correct folder */
if (directory) {
PR_snprintf( Path, MAXPATHLEN, "%s:", directory);
PR_FREEIF(directory);
} else {
directory = XP_TempDirName();
PR_snprintf( Path, MAXPATHLEN, "%s:", directory);
}
autoupdt->outFile = PR_smprintf("%s:%s", Path, filename);
#else
autoupdt->outFile = NULL;
#endif
if (autoupdt->outFile == NULL) {
autoupdt_free(autoupdt);
PR_FREEIF(autoupdt);
return;
}
cur_size = autoupdt_getCurrentSize(autoupdt->outFile);
if (cur_size >= autoupdt->file_size) {
/* XXX: We have all the data. We need not do anything more.
* Should we nag him with do you want to run install
* (if he didn't run it already)?
*/
autoupdt_free(autoupdt);
PR_FREEIF(autoupdt);
return;
}
autoupdt->start_byte = cur_size;
autoupdt->end_byte = cur_size + bytes_range;
autoupdt->range = bytes_range;
autoupdt->outputBuffer = NULL;
autoupdt->cur_len = 0;
autoupdt->mwcontext = (MWContext*)cx;
gAutoUpdateConnnection = autoupdt;
autoupdt->timeout = FE_SetTimeout(autoupdate_TimerCallback,
(void*)autoupdt, autoupdt->interval);
}