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Untranslocate app bundle path if needed on macOS.

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This commit is contained in:
squidbus 2024-08-21 03:06:10 -07:00
parent 958db559c6
commit 9275b0966e
1 changed files with 40 additions and 10 deletions
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50
src/common/path_util.cpp
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@ -8,6 +8,7 @@
#ifdef __APPLE__
#include <CoreFoundation/CFBundle.h>
#include <dlfcn.h>
#include <sys/param.h>
#endif
@ -26,23 +27,52 @@ namespace Common::FS {
namespace fs = std::filesystem;
#ifdef __APPLE__
using IsTranslocatedURLFunc = Boolean (*)(CFURLRef path, bool* isTranslocated,
CFErrorRef* __nullable error);
using CreateOriginalPathForURLFunc = CFURLRef __nullable (*)(CFURLRef translocatedPath,
CFErrorRef* __nullable error);
static CFURLRef UntranslocateBundlePath(const CFURLRef bundle_path) {
if (void* security_handle =
dlopen("/System/Library/Frameworks/Security.framework/Security", RTLD_LAZY)) {
SCOPE_EXIT {
dlclose(security_handle);
};
const auto IsTranslocatedURL = reinterpret_cast<IsTranslocatedURLFunc>(
dlsym(security_handle, "SecTranslocateIsTranslocatedURL"));
const auto CreateOriginalPathForURL = reinterpret_cast<CreateOriginalPathForURLFunc>(
dlsym(security_handle, "SecTranslocateCreateOriginalPathForURL"));
bool is_translocated = false;
if (IsTranslocatedURL && CreateOriginalPathForURL &&
IsTranslocatedURL(bundle_path, &is_translocated, nullptr) && is_translocated) {
return CreateOriginalPathForURL(bundle_path, nullptr);
}
}
return nullptr;
}
static std::filesystem::path GetBundleParentDirectory() {
if (CFBundleRef bundle_ref = CFBundleGetMainBundle()) {
if (CFURLRef bundle_url_ref = CFBundleCopyBundleURL(bundle_ref)) {
SCOPE_EXIT {
CFRelease(bundle_url_ref);
};
if (CFStringRef bundle_path_ref =
CFURLCopyFileSystemPath(bundle_url_ref, kCFURLPOSIXPathStyle)) {
SCOPE_EXIT {
CFRelease(bundle_path_ref);
};
char app_bundle_path[MAXPATHLEN];
if (CFStringGetFileSystemRepresentation(bundle_path_ref, app_bundle_path,
sizeof(app_bundle_path))) {
std::filesystem::path bundle_path{app_bundle_path};
return bundle_path.parent_path();
CFURLRef untranslocated_url_ref = UntranslocateBundlePath(bundle_url_ref);
SCOPE_EXIT {
if (untranslocated_url_ref) {
CFRelease(untranslocated_url_ref);
}
};
char app_bundle_path[MAXPATHLEN];
if (CFURLGetFileSystemRepresentation(
untranslocated_url_ref ? untranslocated_url_ref : bundle_url_ref, true,
reinterpret_cast<u8*>(app_bundle_path), sizeof(app_bundle_path))) {
std::filesystem::path bundle_path{app_bundle_path};
return bundle_path.parent_path();
}
}
}