android: Introduce LibreOfficeKit.java to bootstrap using LibreOfficeKit.

Change-Id: I5e1758c15684b06ab6809f62f4da6d5f50c071a9

3 files changed, 135 insertions, 7 deletions

diff --git a/sal/Library_lo-bootstrap.mk b/sal/Library_lo-bootstrap.mk
index 14380915162f..3dc4bf9dfeaa 100644
--- a/sal/Library_lo-bootstrap.mk
+++ b/sal/Library_lo-bootstrap.mk
@@ -19,6 +19,7 @@ $(eval $(call gb_Library_add_libs,lo-bootstrap,\
 ))
 
 $(eval $(call gb_Library_add_cobjects,lo-bootstrap,\
+	sal/android/libreofficekit-jni \
 	sal/android/lo-bootstrap \
 ))
 
diff --git a/sal/android/libreofficekit-jni.c b/sal/android/libreofficekit-jni.c
new file mode 100644
index 000000000000..3563d5b7891e
--- /dev/null
+++ b/sal/android/libreofficekit-jni.c
@@ -0,0 +1,130 @@
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include <fcntl.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <time.h>
+
+#include <jni.h>
+
+#include <android/log.h>
+
+#include <osl/detail/android-bootstrap.h>
+
+//#define LOGI(...) ((void)__android_log_print(ANDROID_LOG_INFO, "LibreOfficeKit", __VA_ARGS__))
+#define LOGE(...) ((void)__android_log_print(ANDROID_LOG_ERROR, "LibreOfficeKit", __VA_ARGS__))
+
+/* These are valid / used in all apps. */
+extern const char *data_dir;
+extern const char *cache_dir;
+extern void *apk_file;
+extern int apk_file_size;
+
+extern void Java_org_libreoffice_android_Bootstrap_putenv(JNIEnv* env, jobject clazz, jstring string);
+extern jboolean Java_org_libreoffice_android_Bootstrap_redirect_1stdio(JNIEnv* env, jobject clazz, jboolean state);
+extern void Java_org_libreoffice_android_Bootstrap_extract_1files(JNIEnv* env, jobject clazz);
+
+/// Call the same method from Bootstrap.
+__attribute__ ((visibility("default")))
+void
+Java_org_libreoffice_android_LibreOfficeKit_putenv(JNIEnv* env,
+                                              jobject clazz,
+                                              jstring string)
+{
+    Java_org_libreoffice_android_Bootstrap_putenv(env, clazz, string);
+}
+
+/// Call the same method from Bootstrap.
+__attribute__ ((visibility("default")))
+jboolean
+Java_org_libreoffice_android_LibreOfficeKit_redirect_1stdio(JNIEnv* env,
+                                                            jobject clazz,
+                                                            jboolean state)
+{
+    return Java_org_libreoffice_android_Bootstrap_redirect_1stdio(env, clazz, state);
+}
+
+/// Call the same method from Bootstrap.
+__attribute__ ((visibility("default")))
+void
+Java_org_libreoffice_android_LibreOfficeKit_extract_1files(JNIEnv* env,
+                                                           jobject clazz)
+{
+    Java_org_libreoffice_android_Bootstrap_extract_1files(env, clazz);
+}
+
+/// Initialize the LibreOfficeKit.
+__attribute__ ((visibility("default")))
+jboolean
+Java_org_libreoffice_android_LibreOfficeKit_init__Ljava_lang_String_2Ljava_lang_String_2Ljava_lang_String_2
+    (JNIEnv* env,
+     jobject clazz,
+     jstring dataDir,
+     jstring cacheDir,
+     jstring apkFile)
+{
+    struct stat st;
+    int fd;
+    const char *dataDirPath;
+    const char *cacheDirPath;
+    const char *apkFilePath;
+
+    (void) clazz;
+
+    dataDirPath = (*env)->GetStringUTFChars(env, dataDir, NULL);
+    data_dir = strdup(dataDirPath);
+    (*env)->ReleaseStringUTFChars(env, dataDir, dataDirPath);
+
+    cacheDirPath = (*env)->GetStringUTFChars(env, cacheDir, NULL);
+    cache_dir = strdup(cacheDirPath);
+    (*env)->ReleaseStringUTFChars(env, cacheDir, cacheDirPath);
+
+    apkFilePath =  (*env)->GetStringUTFChars(env, apkFile, NULL);
+
+    fd = open(apkFilePath, O_RDONLY);
+    if (fd == -1) {
+        LOGE("Could not open %s", apkFilePath);
+        (*env)->ReleaseStringUTFChars(env, apkFile, apkFilePath);
+        return JNI_FALSE;
+    }
+    if (fstat(fd, &st) == -1) {
+        LOGE("Could not fstat %s", apkFilePath);
+        close(fd);
+        (*env)->ReleaseStringUTFChars(env, apkFile, apkFilePath);
+        return JNI_FALSE;
+    }
+    apk_file = mmap(NULL, st.st_size, PROT_READ, MAP_SHARED, fd, 0);
+    close(fd);
+
+    if (apk_file == MAP_FAILED) {
+        LOGE("Could not mmap %s", apkFilePath);
+        (*env)->ReleaseStringUTFChars(env, apkFile, apkFilePath);
+        return JNI_FALSE;
+    }
+    apk_file_size = st.st_size;
+
+    (*env)->ReleaseStringUTFChars(env, apkFile, apkFilePath);
+
+    if (!setup_cdir())
+        return JNI_FALSE;
+
+    if (!setup_assets_tree())
+        return JNI_FALSE;
+
+    return JNI_TRUE;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sal/android/lo-bootstrap.c b/sal/android/lo-bootstrap.c
index 49f9b3aa627c..973c1b25116a 100644
--- a/sal/android/lo-bootstrap.c
+++ b/sal/android/lo-bootstrap.c
@@ -28,7 +28,7 @@
 
 #include "uthash.h"
 
-#include "osl/detail/android-bootstrap.h"
+#include <osl/detail/android-bootstrap.h>
 
 #undef LOGI
 
@@ -142,7 +142,7 @@ cdir_entry_size(struct cdir_entry *entry)
         letoh16(entry->file_comment_size);
 }
 
-static int
+int
 setup_cdir(void)
 {
     struct cdir_end *dirend = (struct cdir_end *)((char *) apk_file + apk_file_size - sizeof(*dirend));
@@ -221,7 +221,7 @@ handle_one_asset(struct cdir_entry *entry)
     }
 }
 
-static int
+int
 setup_assets_tree(void)
 {
     int count = cdir_entries;
@@ -629,9 +629,6 @@ lo_apk_lstat(const char *path,
     return -1;
 }
 
-#define UNPACK_TREE "/assets/unpack"
-#define UNPACK_TREE_GZ "/assets/gz.unpack"
-
 static int
 mkdir_p(const char *dirname)
 {
@@ -718,7 +715,7 @@ extract_gzipped(const char *filename,
     return total;
 }
 
-static void
+void
 extract_files(const char *root,
               const char *prefix,
               int gzipped)