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applets/web: Fix a use-after-free when passing in the URL string

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The URL string was being deleted before being used, leading to a use-after-free occurring when it is used afterwards.

Fix this by taking the string by const ref to extend its lifetime, ensuring it doesn't get deleted before use.
This commit is contained in:
Morph
2021-04-28 11:32:44 -04:00
parent b096ec68cd
commit 0af182baa2
6 changed files with 28 additions and 25 deletions
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4
src/core/frontend/applets/web_browser.cpp
View File

@ -12,7 +12,7 @@ WebBrowserApplet::~WebBrowserApplet() = default;
DefaultWebBrowserApplet::~DefaultWebBrowserApplet() = default;
void DefaultWebBrowserApplet::OpenLocalWebPage(
std::string_view local_url, std::function<void()> extract_romfs_callback,
const std::string& local_url, std::function<void()> extract_romfs_callback,
std::function<void(Service::AM::Applets::WebExitReason, std::string)> callback) const {
LOG_WARNING(Service_AM, "(STUBBED) called, backend requested to open local web page at {}",
local_url);
@ -21,7 +21,7 @@ void DefaultWebBrowserApplet::OpenLocalWebPage(
}
void DefaultWebBrowserApplet::OpenExternalWebPage(
std::string_view external_url,
const std::string& external_url,
std::function<void(Service::AM::Applets::WebExitReason, std::string)> callback) const {
LOG_WARNING(Service_AM, "(STUBBED) called, backend requested to open external web page at {}",
external_url);

9
src/core/frontend/applets/web_browser.h
View File

@ -16,11 +16,11 @@ public:
virtual ~WebBrowserApplet();
virtual void OpenLocalWebPage(
std::string_view local_url, std::function<void()> extract_romfs_callback,
const std::string& local_url, std::function<void()> extract_romfs_callback,
std::function<void(Service::AM::Applets::WebExitReason, std::string)> callback) const = 0;
virtual void OpenExternalWebPage(
std::string_view external_url,
const std::string& external_url,
std::function<void(Service::AM::Applets::WebExitReason, std::string)> callback) const = 0;
};
@ -28,11 +28,12 @@ class DefaultWebBrowserApplet final : public WebBrowserApplet {
public:
~DefaultWebBrowserApplet() override;
void OpenLocalWebPage(std::string_view local_url, std::function<void()> extract_romfs_callback,
void OpenLocalWebPage(const std::string& local_url,
std::function<void()> extract_romfs_callback,
std::function<void(Service::AM::Applets::WebExitReason, std::string)>
callback) const override;
void OpenExternalWebPage(std::string_view external_url,
void OpenExternalWebPage(const std::string& external_url,
std::function<void(Service::AM::Applets::WebExitReason, std::string)>
callback) const override;
};