diff options
Diffstat (limited to 'features/org.eclipse.equinox.executable.feature/library/eclipseMozilla.c')
| -rw-r--r-- | features/org.eclipse.equinox.executable.feature/library/eclipseMozilla.c | 300 |
1 files changed, 300 insertions, 0 deletions
diff --git a/features/org.eclipse.equinox.executable.feature/library/eclipseMozilla.c b/features/org.eclipse.equinox.executable.feature/library/eclipseMozilla.c new file mode 100644 index 000000000..a599589d5 --- /dev/null +++ b/features/org.eclipse.equinox.executable.feature/library/eclipseMozilla.c @@ -0,0 +1,300 @@ +/******************************************************************************* + * Copyright (c) 2000, 2011 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> + +static char* prefixes[] = { + "xulrunner-1", + "mozilla-seamonkey-1", + "seamonkey-1", + "mozilla-1", + "mozilla-firefox-2", + "firefox-2", + "mozilla-firefox-3", + "firefox-3", + NULL +}; +static const int XULRUNNER_INDEX = 0; + +/* Filter function used by fixEnvForMozilla() for finding directories + * with a desired prefix. + */ +int filter(const struct dirent *dir) +{ +#if defined(__amd64__) || defined(__x86_64__) || defined(__powerpc64__) + char* root = "/usr/lib64/"; +#else + char* root = "/usr/lib/"; +#endif + +#if defined (SOLARIS) + /* + * The solaris compiler does not do static linking, so just check + * for a common lib to ensure that the install seems valid. + */ + char* testlib = "/libxpcom.so"; +#else + /* Ensure that the install is dynamically-linked and is built with GTK2 */ + char* testlib = "/components/libwidget_gtk2.so"; +#endif + + struct stat buf; + int index = 0; + char* dirname = (char *)dir->d_name; + + char* prefix = prefixes [index]; + while (prefix != NULL) + { + int prefixLength = strlen(prefix); + if (strncmp(dirname, prefix, prefixLength) == 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 */ + + int dirLength = strlen(dirname); + char* testpath = malloc (strlen(root) + dirLength + 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 */ +} + +#if defined (SOLARIS) +/* + * A replacement for + * scandir(const char *dir, struct dirent ***namelist, filter, alphasort); + * because scandir & alphasort don't exist on Solaris 9. + * Return the dirent->d_name that was sorted the highest according to strcoll, + * or NULL on error or if no entries matched the filter. + * The caller is responsible for freeing the returned string + */ +char * scan(const char * path) { + DIR *dir = NULL; + struct dirent * entry = NULL; + char * candidate = NULL; + + if ((dir = opendir(path)) == NULL) { + return NULL; + } + + while ((entry = readdir(dir)) != NULL) { + if (filter(entry)) { + if (candidate == NULL) { + candidate = strdup(entry->d_name); + } else if (strcoll(candidate, entry->d_name) < 0) { + free(candidate); + candidate = strdup(entry->d_name); + } + } + } + closedir(dir); + + return candidate; +} +#endif + +/* 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__) || defined(__powerpc64__) + 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) + { + int index = 0; + char* prefix = prefixes [index]; + while (prefix != NULL) + { + if (strstr(path, prefix)) + { + grePath = strdup(path); + break; + } + prefix = prefixes [++index]; + } + } + } + fclose(file); + } + } + + /* Try some common installation locations. */ + if (grePath == NULL) + { + /* try xulrunner-1*, mozilla-1*, firefox-2/3*, seamonkey-1* directories in /usr/lib/ */ +#if defined(__amd64__) || defined(__x86_64__) || defined(__powerpc64__) + char* dir = "/usr/lib64/"; +#else + char* dir = "/usr/lib/"; +#endif +#if defined (SOLARIS) + char * name = scan(dir); + if (name != NULL) { +#else + struct dirent **namelist; + int i; + int count = scandir(dir, &namelist, filter, alphasort); + if (count > 0) + { + /* count-1 is used below in an attempt to choose XULRunner + * any time one is found + */ + char* name = namelist [count - 1]->d_name; +#endif + grePath = malloc (strlen(dir) + strlen(name) + 1); + strcpy(grePath, dir); + strcat(grePath, name); +#if defined (SOLARIS) + free(name); +#else + for (i = 0; i < count; i++) { + free(namelist [i]); + } + free(namelist); +#endif + } + +#if defined (SOLARIS) + if (grePath == NULL) + { + /* some other typical installation locations */ + char* dirs[] = { + "/usr/sfw/lib/mozilla/", /* Solaris location */ + "/usr/lib/firefox/", /* OpenSolaris location */ + NULL + }; + + /* + * The solaris compiler does not do static linking, so just check + * for a common lib to ensure that the install seems valid. + */ + char* testlib = "libxpcom.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++]; + } + } +#endif // SOLARIS + } + + if (grePath != NULL) + { + /* If grePath contains "xulrunner" then do not change the LD_LIBRARY_PATH, + * since it is likely that a xulrunner (not a mozilla or firefox) + * will be found at runtime. Note that MOZILLA_FIVE_HOME is still + * updated if grePath contains "xul" since this variable can act as + * a backup GRE to try if an initially-detected one fails to load. + */ + if (!strstr(grePath, "xulrunner")) { + 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 */ |