wininet: Implement IsUrlCacheEntryExpiredA.

dlls/wininet/urlcache.c

@@ -2894,8 +2894,45 @@ DWORD WINAPI DeleteIE3Cache(HWND hWnd, HINSTANCE hInst, LPSTR lpszCmdLine, int n
  */
 BOOL WINAPI IsUrlCacheEntryExpiredA( LPCSTR url, DWORD dwFlags, FILETIME* pftLastModified )
 {
-    FIXME("(%s, %08x, %p) stub\n", debugstr_a(url), dwFlags, pftLastModified);
+    LPURLCACHE_HEADER pHeader;
+    CACHEFILE_ENTRY * pEntry;
+    URL_CACHEFILE_ENTRY * pUrlEntry;
+    URLCACHECONTAINER * pContainer;
+
+    TRACE("(%s, %08x, %p)\n", debugstr_a(url), dwFlags, pftLastModified);
+
+    if (!URLCacheContainers_FindContainerA(url, &pContainer))
+        return FALSE;
+
+    if (!URLCacheContainer_OpenIndex(pContainer))
+        return FALSE;
+
+    if (!(pHeader = URLCacheContainer_LockIndex(pContainer)))
+        return FALSE;
+
+    if (!URLCache_FindEntryInHash(pHeader, url, &pEntry))
+    {
+        URLCacheContainer_UnlockIndex(pContainer, pHeader);
+        TRACE("entry %s not found!\n", url);
+        SetLastError(ERROR_FILE_NOT_FOUND);
         return FALSE;
+    }
+
+    if (pEntry->dwSignature != URL_SIGNATURE)
+    {
+        URLCacheContainer_UnlockIndex(pContainer, pHeader);
+        FIXME("Trying to retrieve entry of unknown format %s\n", debugstr_an((LPSTR)&pEntry->dwSignature, sizeof(DWORD)));
+        SetLastError(ERROR_FILE_NOT_FOUND);
+        return FALSE;
+    }
+
+    pUrlEntry = (URL_CACHEFILE_ENTRY *)pEntry;
+
+    DosDateTimeToFileTime(pUrlEntry->wExpiredDate, pUrlEntry->wExpiredTime, pftLastModified);
+
+    URLCacheContainer_UnlockIndex(pContainer, pHeader);
+
+    return TRUE;
 }
 
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