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/*******************************************************************************
* Copyright (c) 2000, 2005 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
/* Eclipse Mozilla Utility Methods */
#ifdef MOZILLA_FIX
#include "eclipseMozilla.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <dirent.h>
#include <sys/stat.h>
/* Filter function used by fixEnvForMozilla() for finding directories
* with a desired prefix.
*/
int filter(const struct dirent *dir)
{
char* prefixes[] = {
"xulrunner-",
"mozilla-",
"firefox-",
NULL
};
int XULRUNNER_INDEX = 0;
char* root = "/usr/lib/";
char* testlib = "/components/libwidget_gtk2.so";
struct stat buf;
int index = 0;
char* dirname = (char *)dir->d_name;
char* prefix = prefixes [index];
while (prefix != NULL)
{
if (strncmp(dirname, prefix, strlen(prefix)) == 0)
{
/* If a xulrunner install is found then success is immediate since
* xulrunner always provides an embeddable GRE.
*/
if (index == XULRUNNER_INDEX) return 1; /* include in scandir result */
char* testpath = malloc (strlen(root) + strlen(dirname) + strlen(testlib) + 1);
strcpy(testpath, root);
strcat(testpath, dirname);
strcat(testpath, testlib);
int success = stat(testpath, &buf) == 0;
free(testpath);
if (success)
{
return 1; /* include in scandir result */
}
}
prefix = prefixes [++index];
}
return 0; /* exclude from scandir result */
}
/* Set the environmnent required by the SWT Browser widget to bind to Mozilla.
* The SWT Browser widget relies on Mozilla on Linux. The LD_LIBRARY_PATH
* and the Mozilla environment variable MOZILLA_FIVE_HOME must point
* to the installation directory of Mozilla.
*
* 1. Use the location set by MOZILLA_FIVE_HOME if it is defined
* 2. Parse the file /etc/gre.conf if it is defined. This file is
* set by the RedtHat RPM manager.
* 3. Try some common installation locations.
*/
void fixEnvForMozilla() {
static int fixed = 0;
if (fixed) return;
{
char *ldPath = (char*)getenv("LD_LIBRARY_PATH");
char *mozillaFiveHome = (char*)getenv("MOZILLA_FIVE_HOME");
char *grePath = NULL; /* Gecko Runtime Environment Location */
fixed = 1;
/* Always dup the string so we can free later */
if (ldPath != NULL) ldPath = strdup(ldPath);
else ldPath = strdup("");
/* MOZILLA_FIVE_HOME (if defined) points to the Mozilla
* install directory. Don't look any further if it is set.
*/
if (mozillaFiveHome != NULL)
{
grePath = strdup(mozillaFiveHome);
}
/* The file gre.conf (if available) points to the
* Mozilla install directory. Don't look any further if
* it is set.
*/
if (grePath == NULL)
{
struct stat buf;
FILE *file = NULL;
#if defined(__amd64__) || defined(__x86_64__)
if (stat("/etc/gre64.conf", &buf) == 0)
{
file = fopen("/etc/gre64.conf", "r");
}
else if (stat("/etc/gre.d/gre64.conf", &buf) == 0)
{
file = fopen("/etc/gre.d/gre64.conf", "r");
} else
#endif
if (stat("/etc/gre.conf", &buf) == 0)
{
file = fopen("/etc/gre.conf", "r");
}
else if (stat("/etc/gre.d/gre.conf", &buf) == 0)
{
file = fopen("/etc/gre.d/gre.conf", "r");
}
if (file != NULL)
{
char buffer[1024];
char path[1024];
while (fgets(buffer, 1024, file) != NULL)
{
if (sscanf(buffer, "GRE_PATH=%s", path) == 1)
{
grePath = strdup(path);
break;
}
}
fclose(file);
}
}
/* Try some common installation locations. */
if (grePath == NULL)
{
/* some other typical installation locations */
char* dirs[] = {
"/usr/lib/mozilla/",
"/usr/local/mozilla/",
"/opt/mozilla/",
"/usr/lib/firefox/",
"/usr/local/firefox/",
"/opt/firefox/",
"/usr/lib/MozillaFirebird/",
"/usr/local/MozillaFirebird/",
"/opt/MozillaFirebird/",
NULL
};
char* testlib = "components/libwidget_gtk2.so";
struct stat buf;
int index = 0;
char* dir = dirs [index++];
while (dir != NULL)
{
char* testpath = malloc (strlen(dir) + strlen(testlib) + 1);
strcpy(testpath, dir);
strcat(testpath, testlib);
int success = stat(testpath, &buf) == 0;
free(testpath);
if (success)
{
grePath = strdup(dir);
break;
}
dir = dirs [index++];
}
if (grePath == NULL)
{
/* now try xulrunner-*, mozilla-*, firefox-* directories in /usr/lib/ */
char* dir = "/usr/lib/";
struct dirent **namelist;
int i;
int count = scandir(dir, &namelist, filter, alphasort);
if (count > 0)
{
/* count-1 is used below in an attempt to get the matched directory
* with the latest version number.
*/
char* name = namelist [count - 1]->d_name;
grePath = malloc (strlen(dir) + strlen(name) + 1);
strcpy(grePath, dir);
strcat(grePath, name);
for (i = 0; i < count; i++) {
free(namelist [i]);
}
free(namelist);
}
}
}
if (grePath != NULL)
{
ldPath = (char*)realloc(ldPath, strlen(ldPath) + strlen(grePath) + 2);
if (strlen(ldPath) > 0) strcat(ldPath, ":");
strcat(ldPath, grePath);
setenv("LD_LIBRARY_PATH", ldPath, 1);
if (mozillaFiveHome == NULL) setenv("MOZILLA_FIVE_HOME", grePath, 1);
free(grePath);
}
free(ldPath);
}
}
#endif /* MOZILLA_FIX */
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