Pier Angelo Vendrame pushed to branch mullvad-browser-128.2.0esr-14.0-1 at The Tor Project / Applications / Mullvad Browser

Commits: a64e84bc by Pier Angelo Vendrame at 2024-09-18T15:37:35+02:00 Bug 42220: Allow for more file types to be forced-inline.

Firefox allows to open some files in the browser without any confirmation, but this will result in a disk leak, because the file will be downloaded to the temporary directory first (and not deleted, in some cases). A preference allows PDFs to be opened without being downloaded to disk. So, we introduce a similar one to do the same for all the files that are set to be opened automatically in the browser.

- - - - -

2 changed files:

- modules/libpref/init/StaticPrefList.yaml - uriloader/base/nsURILoader.cpp

Changes:

===================================== modules/libpref/init/StaticPrefList.yaml ===================================== @@ -1446,6 +1446,12 @@ value: false mirror: always

+# tor-browser#42220 +- name: browser.download.ignore_content_disposition + type: bool + value: true + mirror: always + # See bug 1811830 - name: browser.download.force_save_internally_handled_attachments type: bool

===================================== uriloader/base/nsURILoader.cpp ===================================== @@ -292,34 +292,42 @@ nsresult nsDocumentOpenInfo::DispatchContent(nsIRequest* request) { LOG((" forceExternalHandling: %s", forceExternalHandling ? "yes" : "no"));

if (forceExternalHandling && - mozilla::StaticPrefs::browser_download_open_pdf_attachments_inline()) { + (mozilla::StaticPrefs::browser_download_open_pdf_attachments_inline() || + mozilla::StaticPrefs::browser_download_ignore_content_disposition())) { // Check if this is a PDF which should be opened internally. We also handle // octet-streams that look like they might be PDFs based on their extension. bool isPDF = mContentType.LowerCaseEqualsASCII(APPLICATION_PDF); - if (!isPDF && - (mContentType.LowerCaseEqualsASCII(APPLICATION_OCTET_STREAM) || - mContentType.IsEmpty())) { + nsAutoCString ext; + if (mContentType.LowerCaseEqualsASCII(APPLICATION_OCTET_STREAM) || + mContentType.IsEmpty()) { nsAutoString flname; aChannel->GetContentDispositionFilename(flname); - isPDF = StringEndsWith(flname, u".pdf"_ns); - if (!isPDF) { + if (!flname.IsEmpty()) { + int32_t extStart = flname.RFindChar(u'.'); + if (extStart != kNotFound) { + CopyUTF16toUTF8(Substring(flname, extStart + 1), ext); + } + } + if (ext.IsEmpty() || (!mozilla::StaticPrefs:: + browser_download_ignore_content_disposition() && + !ext.EqualsLiteral("pdf"))) { nsCOMPtr<nsIURI> uri; aChannel->GetURI(getter_AddRefs(uri)); nsCOMPtr<nsIURL> url(do_QueryInterface(uri)); if (url) { - nsAutoCString ext; url->GetFileExtension(ext); - isPDF = ext.EqualsLiteral("pdf"); } } + isPDF = ext.EqualsLiteral("pdf"); }

- // For a PDF, check if the preference is set that forces attachments to be - // opened inline. If so, treat it as a non-attachment by clearing - // 'forceExternalHandling' again. This allows it open a PDF directly - // instead of downloading it first. It may still end up being handled by - // a helper app depending anyway on the later checks. - if (isPDF) { + // One of the preferences to forces attachments to be opened inline is set. + // If so, treat it as a non-attachment by clearing 'forceExternalHandling' + // again. This allows it open a file directly instead of downloading it + // first. It may still end up being handled by a helper app depending anyway + // on the later checks. + if (mozilla::StaticPrefs::browser_download_ignore_content_disposition() || + isPDF) { nsCOMPtr<nsILoadInfo> loadInfo; aChannel->GetLoadInfo(getter_AddRefs(loadInfo));

@@ -328,8 +336,13 @@ nsresult nsDocumentOpenInfo::DispatchContent(nsIRequest* request) { nsCOMPtr<nsIMIMEService> mimeSvc( do_GetService(NS_MIMESERVICE_CONTRACTID)); NS_ENSURE_TRUE(mimeSvc, NS_ERROR_FAILURE); - mimeSvc->GetFromTypeAndExtension(nsLiteralCString(APPLICATION_PDF), ""_ns, - getter_AddRefs(mimeInfo)); + if (isPDF) { + mimeSvc->GetFromTypeAndExtension(nsLiteralCString(APPLICATION_PDF), + ""_ns, getter_AddRefs(mimeInfo)); + } else { + mimeSvc->GetFromTypeAndExtension(mContentType, ext, + getter_AddRefs(mimeInfo)); + }

if (mimeInfo) { int32_t action = nsIMIMEInfo::saveToDisk;

View it on GitLab: https://gitlab.torproject.org/tpo/applications/mullvad-browser/-/commit/a64e...