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Weather: Detect and break infinite loops on navigating to the error page

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This commit is contained in:
Valentin Radu 2022-08-04 23:56:55 +03:00
parent f7ffaca146
commit aeb8e54b58
2 changed files with 16 additions and 6 deletions
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3
ep_weather_host/ep_weather_error_html.h
View File

@ -1,6 +1,7 @@
#ifndef _H_EP_WEATHER_ERROR_HTML_H_ #ifndef _H_EP_WEATHER_ERROR_HTML_H_
#define _H_EP_WEATHER_ERROR_HTML_H_ #define _H_EP_WEATHER_ERROR_HTML_H_
#include <Windows.h> #include <Windows.h>
#include <tchar.h>
#define EP_WEATHER_ERROR_LEN 2000 #define EP_WEATHER_ERROR_LEN 2000
LPCWSTR ep_weather_error_html = L"\ LPCWSTR ep_weather_error_html = L"\
<!DOCTYPE html>\n\ <!DOCTYPE html>\n\
@ -8,7 +9,7 @@ LPCWSTR ep_weather_error_html = L"\
<head>\n\ <head>\n\
<meta charset=\"utf-8\" />\n\ <meta charset=\"utf-8\" />\n\
<meta name=\"color-scheme\" content=\"light dark\">\n\ <meta name=\"color-scheme\" content=\"light dark\">\n\
<title>Weather</title>\n\ <title>" _T(CLSID_EPWeather_TEXT) L"_ErrorPage</title>\n\
<style>\n\ <style>\n\
html {\n\ html {\n\
background-color: transparent !important;\n\ background-color: transparent !important;\n\

15
ep_weather_host/ep_weather_host.c
View File

@ -250,13 +250,21 @@ HRESULT STDMETHODCALLTYPE _epw_Weather_NavigateToError(EPWeather* _this)
} }
if (_this->pCoreWebView2) if (_this->pCoreWebView2)
{ {
return _this->pCoreWebView2->lpVtbl->NavigateToString(_this->pCoreWebView2, ep_weather_error_html); LPWSTR wszPageTitle = NULL;
} if (SUCCEEDED(_this->pCoreWebView2->lpVtbl->get_DocumentTitle(_this->pCoreWebView2, &wszPageTitle)))
{
BOOL bIsOnErrorPage = !_wcsicmp(wszPageTitle, _T(CLSID_EPWeather_TEXT) L"_ErrorPage");
CoTaskMemFree(wszPageTitle);
if (!bIsOnErrorPage) return _this->pCoreWebView2->lpVtbl->NavigateToString(_this->pCoreWebView2, ep_weather_error_html);
else else
{ {
return E_FAIL; printf("[Browser] Already on the error page.\n");
return S_OK;
} }
} }
}
return E_FAIL;
}
HRESULT STDMETHODCALLTYPE _epw_Weather_NavigateToProvider(EPWeather* _this) HRESULT STDMETHODCALLTYPE _epw_Weather_NavigateToProvider(EPWeather* _this)
{ {
@ -500,6 +508,7 @@ HRESULT STDMETHODCALLTYPE ICoreWebView2_NavigationCompleted(ICoreWebView2Navigat
} }
else else
{ {
printf("[Browser] Navigation completed with error, showing error page.\n");
_epw_Weather_NavigateToError(_this); _epw_Weather_NavigateToError(_this);
} }
_this->pCoreWebView2Controller->lpVtbl->put_IsVisible(_this->pCoreWebView2Controller, FALSE); _this->pCoreWebView2Controller->lpVtbl->put_IsVisible(_this->pCoreWebView2Controller, FALSE);