feat(webfuse): add multiclient support (#23)

* fixes verbosity option when set through command line

* adds support for build type and allows to run gdb in container

* adds missing toolchain headers to project

* renames container macros

* adds gdbserver

* fixes verbosity option when set through command line

* adds support for build type and allows to run gdb in container

* adds missing toolchain headers to project

* renames container macros

* adds gdbserver

* removes language settings, which contains alternating values

* adds wrapper script to launch gdbserver

* fix docker command in wrapper script

* fixes run in dind setup

* replaces docker's init through dump-init

* moves filesystem to session

* fixes verbosity option when set through command line

* adds support for build type and allows to run gdb in container

* renames container macros

* adds gdbserver

* fixes verbosity option when set through command line

* adds support for build type and allows to run gdb in container

* renames container macros

* adds gdbserver

* adds wrapper script to launch gdbserver

* fix docker command in wrapper script

* fixes run in dind setup

* replaces docker's init through dump-init

* moves filesystem to session

* adds container_of

* added dlist

* allows multiple clients to connect

* removes directory when session is closed

* adds dependecy to uuid-dev

* allow clients to register filesystems

* updates documentation

* moves mountpoint handling into filesystem: mountpoints are removed during session cleanup

* adds filesystem name/id to request parameters

* fixes security issue: add_filesystem did not check name

* removes default link, if it is broken

* recreates symlink "default", if filesystem is gone

* updates documentation

* fixes memory leak

* makes authentication work .. again

* updates provider to support changed protocol

* removes execute right of hello.txt

* fixes style issues

* fixes javascript style issues

* fixes flase positive from Flawfinder

* fixes some javascript style issues

* removes use of PATH_MAX

* removes use of GNU extensions in container_of implementation

* ignores findings of flawfinder

* replaces dlist by slist

* removes duplicate implementation of slist (message_queue)

test/test_container_of.cc

@@ -0,0 +1,29 @@
+#include <gtest/gtest.h>
+#include "webfuse/core/container_of.h"
+
+namespace
+{
+
+struct MyStruct
+{
+    int first;
+    int second;
+};
+
+}
+
+TEST(ContainerOf, FirstMember)
+{
+    MyStruct my_struct = {23, 42};
+
+    int * first = &my_struct.first;
+    ASSERT_EQ(&my_struct, WF_CONTAINER_OF(first, MyStruct, first));
+}
+
+TEST(ContainerOf, SecondMember)
+{
+    MyStruct my_struct = {23, 42};
+
+    int * second = &my_struct.second;
+    ASSERT_EQ(&my_struct, WF_CONTAINER_OF(second, MyStruct, second));
+}

test/test_slist.cc

@@ -0,0 +1,35 @@
+#include <gtest/gtest.h>
+#include "webfuse/core/slist.h"
+
+TEST(wf_slist_remove_after, RemoveFirst)
+{
+    struct wf_slist list;
+    struct wf_slist_item item[10];
+
+    wf_slist_init(&list);
+    wf_slist_append(&list, &item[0]);
+
+    wf_slist_item * removed = wf_slist_remove_after(&list, NULL);
+    ASSERT_TRUE(wf_slist_empty(&list));
+    ASSERT_EQ(nullptr, list.first);
+    ASSERT_EQ(nullptr, list.last);
+    ASSERT_EQ(&item[0], removed);
+}
+
+TEST(wf_slist_remove_after, RemoveLast)
+{
+    struct wf_slist list;
+    struct wf_slist_item item[10];
+
+    wf_slist_init(&list);
+    wf_slist_append(&list, &item[0]);
+    wf_slist_append(&list, &item[1]);
+    wf_slist_append(&list, &item[2]);
+
+    wf_slist_item * removed = wf_slist_remove_after(&list, &item[1]);
+    ASSERT_FALSE(wf_slist_empty(&list));
+    ASSERT_EQ(&item[0], list.first);
+    ASSERT_EQ(&item[1], list.last);
+    ASSERT_EQ(nullptr, item[1].next);
+    ASSERT_EQ(&item[2], removed);
+}

test/test_string.cc

@@ -0,0 +1,18 @@
+#include <gtest/gtest.h>
+#include <stdlib.h>
+
+#include "webfuse/core/string.h"
+
+TEST(wf_string_create, Default)
+{
+    char * value = wf_create_string("test %s/%d", "hello", 42);
+    ASSERT_STREQ("test hello/42", value);
+    free(value);
+}
+
+TEST(wf_string_create, EmptyString)
+{
+    char * value = wf_create_string("");
+    ASSERT_STREQ("", value);
+    free(value);
+}