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gecko/uriloader/exthandler/os2/nsOSHelperAppService.cpp

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set sw=2 sts=2 et cin: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsOSHelperAppService.h"
#include "nsISupports.h"
#include "nsString.h"
#include "nsReadableUtils.h"
#include "nsUnicharUtils.h"
#include "nsXPIDLString.h"
#include "nsIURL.h"
#include "nsIFileStreams.h"
#include "nsILineInputStream.h"
#include "nsIFile.h"
#include "nsIProcess.h"
#include "nsXPCOM.h"
#include "nsISupportsPrimitives.h"
#include "nsHashtable.h"
#include "nsCRT.h"
#include "prenv.h" // for PR_GetEnv()
#include "nsMIMEInfoOS2.h"
#include "nsAutoPtr.h"
#include "nsIRwsService.h"
#include "nsIStringBundle.h"
#include "nsLocalHandlerApp.h"
#include "mozilla/Services.h"
#include "mozilla/Preferences.h"
#include <stdlib.h> // for system()
using namespace mozilla;
//------------------------------------------------------------------------
// reduces overhead by preventing calls to nsRws when it isn't present
static bool sUseRws = true;
static nsresult
FindSemicolon(nsAString::const_iterator& aSemicolon_iter,
const nsAString::const_iterator& aEnd_iter);
static nsresult
ParseMIMEType(const nsAString::const_iterator& aStart_iter,
nsAString::const_iterator& aMajorTypeStart,
nsAString::const_iterator& aMajorTypeEnd,
nsAString::const_iterator& aMinorTypeStart,
nsAString::const_iterator& aMinorTypeEnd,
const nsAString::const_iterator& aEnd_iter);
inline bool
IsNetscapeFormat(const nsACString& aBuffer);
//------------------------------------------------------------------------
nsOSHelperAppService::nsOSHelperAppService() : nsExternalHelperAppService()
{
}
nsOSHelperAppService::~nsOSHelperAppService()
{}
/*
* Take a command with all the mailcap escapes in it and unescape it
* Ideally this needs the mime type, mime type options, and location of the
* temporary file, but this last can't be got from here
*/
// static
nsresult
nsOSHelperAppService::UnescapeCommand(const nsAString& aEscapedCommand,
const nsAString& aMajorType,
const nsAString& aMinorType,
nsHashtable& aTypeOptions,
nsACString& aUnEscapedCommand) {
LOG(("-- UnescapeCommand"));
LOG(("Command to escape: '%s'\n",
NS_LossyConvertUTF16toASCII(aEscapedCommand).get()));
// XXX This function will need to get the mime type and various stuff like that being passed in to work properly
LOG(("UnescapeCommand really needs some work -- it should actually do some unescaping\n"));
CopyUTF16toUTF8(aEscapedCommand, aUnEscapedCommand);
LOG(("Escaped command: '%s'\n",
PromiseFlatCString(aUnEscapedCommand).get()));
return NS_OK;
}
/* Put aSemicolon_iter at the first non-escaped semicolon after
* aStart_iter but before aEnd_iter
*/
static nsresult
FindSemicolon(nsAString::const_iterator& aSemicolon_iter,
const nsAString::const_iterator& aEnd_iter) {
bool semicolonFound = false;
while (aSemicolon_iter != aEnd_iter && !semicolonFound) {
switch(*aSemicolon_iter) {
case '\\':
aSemicolon_iter.advance(2);
break;
case ';':
semicolonFound = true;
break;
default:
++aSemicolon_iter;
break;
}
}
return NS_OK;
}
static nsresult
ParseMIMEType(const nsAString::const_iterator& aStart_iter,
nsAString::const_iterator& aMajorTypeStart,
nsAString::const_iterator& aMajorTypeEnd,
nsAString::const_iterator& aMinorTypeStart,
nsAString::const_iterator& aMinorTypeEnd,
const nsAString::const_iterator& aEnd_iter) {
nsAString::const_iterator iter(aStart_iter);
// skip leading whitespace
while (iter != aEnd_iter && nsCRT::IsAsciiSpace(*iter)) {
++iter;
}
if (iter == aEnd_iter) {
return NS_ERROR_INVALID_ARG;
}
aMajorTypeStart = iter;
// find major/minor separator ('/')
while (iter != aEnd_iter && *iter != '/') {
++iter;
}
if (iter == aEnd_iter) {
return NS_ERROR_INVALID_ARG;
}
aMajorTypeEnd = iter;
// skip '/'
++iter;
if (iter == aEnd_iter) {
return NS_ERROR_INVALID_ARG;
}
aMinorTypeStart = iter;
// find end of minor type, delimited by whitespace or ';'
while (iter != aEnd_iter && !nsCRT::IsAsciiSpace(*iter) && *iter != ';') {
++iter;
}
aMinorTypeEnd = iter;
return NS_OK;
}
// static
nsresult
nsOSHelperAppService::GetFileLocation(const char* aPrefName,
const char* aEnvVarName,
nsAString& aFileLocation) {
LOG(("-- GetFileLocation. Pref: '%s' EnvVar: '%s'\n",
aPrefName,
aEnvVarName));
NS_PRECONDITION(aPrefName, "Null pref name passed; don't do that!");
aFileLocation.Truncate();
/* The lookup order is:
1) user pref
2) env var
3) pref
*/
NS_ENSURE_TRUE(Preferences::GetRootBranch(), NS_ERROR_FAILURE);
/*
If we have an env var we should check whether the pref is a user
pref. If we do not, we don't care.
*/
if (Preferences::HasUserValue(aPrefName) &&
NS_SUCCEEDED(Preferences::GetString(aPrefName, &aFileLocation))) {
return NS_OK;
}
if (aEnvVarName && *aEnvVarName) {
char* prefValue = PR_GetEnv(aEnvVarName);
if (prefValue && *prefValue) {
// the pref is in the system charset and it's a filepath... The
// natural way to do the charset conversion is by just initing
// an nsIFile with the native path and asking it for the Unicode
// version.
nsCOMPtr<nsIFile> file(do_CreateInstance(NS_LOCAL_FILE_CONTRACTID, &rv));
NS_ENSURE_SUCCESS(rv, rv);
rv = file->InitWithNativePath(nsDependentCString(prefValue));
NS_ENSURE_SUCCESS(rv, rv);
rv = file->GetPath(aFileLocation);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
}
return Preferences::GetString(aPrefName, &aFileLocation);
}
/* Get the mime.types file names from prefs and look up info in them
based on extension */
// static
nsresult
nsOSHelperAppService::LookUpTypeAndDescription(const nsAString& aFileExtension,
nsAString& aMajorType,
nsAString& aMinorType,
nsAString& aDescription) {
LOG(("-- LookUpTypeAndDescription for extension '%s'\n",
NS_LossyConvertUTF16toASCII(aFileExtension).get()));
nsresult rv = NS_OK;
nsAutoString mimeFileName;
rv = GetFileLocation("helpers.private_mime_types_file",
nullptr, mimeFileName);
if (NS_SUCCEEDED(rv) && !mimeFileName.IsEmpty()) {
rv = GetTypeAndDescriptionFromMimetypesFile(mimeFileName,
aFileExtension,
aMajorType,
aMinorType,
aDescription);
} else {
rv = NS_ERROR_NOT_AVAILABLE;
}
if (NS_FAILED(rv) || aMajorType.IsEmpty()) {
rv = GetFileLocation("helpers.global_mime_types_file",
nullptr, mimeFileName);
if (NS_SUCCEEDED(rv) && !mimeFileName.IsEmpty()) {
rv = GetTypeAndDescriptionFromMimetypesFile(mimeFileName,
aFileExtension,
aMajorType,
aMinorType,
aDescription);
} else {
rv = NS_ERROR_NOT_AVAILABLE;
}
}
return rv;
}
inline bool
IsNetscapeFormat(const nsACString& aBuffer) {
return StringBeginsWith(aBuffer, NS_LITERAL_CSTRING("#--Netscape Communications Corporation MIME Information")) ||
StringBeginsWith(aBuffer, NS_LITERAL_CSTRING("#--MCOM MIME Information"));
}
/*
* Create a file stream and line input stream for the filename.
* Leaves the first line of the file in aBuffer and sets the format to
* true for netscape files and false for normail ones
*/
// static
nsresult
nsOSHelperAppService::CreateInputStream(const nsAString& aFilename,
nsIFileInputStream ** aFileInputStream,
nsILineInputStream ** aLineInputStream,
nsACString& aBuffer,
bool * aNetscapeFormat,
bool * aMore) {
LOG(("-- CreateInputStream"));
nsresult rv = NS_OK;
nsCOMPtr<nsIFile> file(do_CreateInstance(NS_LOCAL_FILE_CONTRACTID, &rv));
if (NS_FAILED(rv))
return rv;
rv = file->InitWithPath(aFilename);
if (NS_FAILED(rv))
return rv;
nsCOMPtr<nsIFileInputStream> fileStream(do_CreateInstance(NS_LOCALFILEINPUTSTREAM_CONTRACTID, &rv));
if (NS_FAILED(rv))
return rv;
rv = fileStream->Init(file, -1, -1, false);
if (NS_FAILED(rv))
return rv;
nsCOMPtr<nsILineInputStream> lineStream(do_QueryInterface(fileStream, &rv));
if (NS_FAILED(rv)) {
LOG(("Interface trouble in stream land!"));
return rv;
}
rv = lineStream->ReadLine(aBuffer, aMore);
if (NS_FAILED(rv)) {
fileStream->Close();
return rv;
}
*aNetscapeFormat = IsNetscapeFormat(aBuffer);
*aFileInputStream = fileStream;
NS_ADDREF(*aFileInputStream);
*aLineInputStream = lineStream;
NS_ADDREF(*aLineInputStream);
return NS_OK;
}
/* Open the file, read the first line, decide what type of file it is,
then get info based on extension */
// static
nsresult
nsOSHelperAppService::GetTypeAndDescriptionFromMimetypesFile(const nsAString& aFilename,
const nsAString& aFileExtension,
nsAString& aMajorType,
nsAString& aMinorType,
nsAString& aDescription) {
LOG(("-- GetTypeAndDescriptionFromMimetypesFile\n"));
LOG(("Getting type and description from types file '%s'\n",
NS_LossyConvertUTF16toASCII(aFilename).get()));
LOG(("Using extension '%s'\n",
NS_LossyConvertUTF16toASCII(aFileExtension).get()));
nsresult rv = NS_OK;
nsCOMPtr<nsIFileInputStream> mimeFile;
nsCOMPtr<nsILineInputStream> mimeTypes;
bool netscapeFormat;
nsAutoString buf;
nsAutoCString cBuf;
bool more = false;
rv = CreateInputStream(aFilename, getter_AddRefs(mimeFile), getter_AddRefs(mimeTypes),
cBuf, &netscapeFormat, &more);
if (NS_FAILED(rv)) {
return rv;
}
nsAutoString extensions;
nsString entry;
entry.SetCapacity(100);
nsAString::const_iterator majorTypeStart, majorTypeEnd,
minorTypeStart, minorTypeEnd,
descriptionStart, descriptionEnd;
do {
CopyASCIItoUTF16(cBuf, buf);
// read through, building up an entry. If we finish an entry, check for
// a match and return out of the loop if we match
// skip comments and empty lines
if (!buf.IsEmpty() && buf.First() != '#') {
entry.Append(buf);
if (entry.Last() == '\\') {
entry.Truncate(entry.Length() - 1);
entry.Append(PRUnichar(' ')); // in case there is no trailing whitespace on this line
} else { // we have a full entry
LOG(("Current entry: '%s'\n",
NS_LossyConvertUTF16toASCII(entry).get()));
if (netscapeFormat) {
rv = ParseNetscapeMIMETypesEntry(entry,
majorTypeStart, majorTypeEnd,
minorTypeStart, minorTypeEnd,
extensions,
descriptionStart, descriptionEnd);
if (NS_FAILED(rv)) {
// We sometimes get things like RealPlayer appending
// "normal" entries to "Netscape" .mime.types files. Try
// to handle that. Bug 106381.
LOG(("Bogus entry; trying 'normal' mode\n"));
rv = ParseNormalMIMETypesEntry(entry,
majorTypeStart, majorTypeEnd,
minorTypeStart, minorTypeEnd,
extensions,
descriptionStart, descriptionEnd);
}
} else {
rv = ParseNormalMIMETypesEntry(entry,
majorTypeStart, majorTypeEnd,
minorTypeStart, minorTypeEnd,
extensions,
descriptionStart, descriptionEnd);
if (NS_FAILED(rv)) {
// We sometimes get things like StarOffice prepending
// "normal" entries to "Netscape" .mime.types files. Try
// to handle that. Bug 136670.
LOG(("Bogus entry; trying 'Netscape' mode\n"));
rv = ParseNetscapeMIMETypesEntry(entry,
majorTypeStart, majorTypeEnd,
minorTypeStart, minorTypeEnd,
extensions,
descriptionStart, descriptionEnd);
}
}
if (NS_SUCCEEDED(rv)) { // entry parses
nsAString::const_iterator start, end;
extensions.BeginReading(start);
extensions.EndReading(end);
nsAString::const_iterator iter(start);
while (start != end) {
FindCharInReadable(',', iter, end);
if (Substring(start, iter).Equals(aFileExtension,
nsCaseInsensitiveStringComparator())) {
// it's a match. Assign the type and description and run
aMajorType.Assign(Substring(majorTypeStart, majorTypeEnd));
aMinorType.Assign(Substring(minorTypeStart, minorTypeEnd));
aDescription.Assign(Substring(descriptionStart, descriptionEnd));
mimeFile->Close();
return NS_OK;
}
if (iter != end) {
++iter;
}
start = iter;
}
} else {
LOG(("Failed to parse entry: %s\n", NS_LossyConvertUTF16toASCII(entry).get()));
}
// truncate the entry for the next iteration
entry.Truncate();
}
}
if (!more) {
rv = NS_ERROR_NOT_AVAILABLE;
break;
}
// read the next line
rv = mimeTypes->ReadLine(cBuf, &more);
} while (NS_SUCCEEDED(rv));
mimeFile->Close();
return rv;
}
/* Get the mime.types file names from prefs and look up info in them
based on mimetype */
// static
nsresult
nsOSHelperAppService::LookUpExtensionsAndDescription(const nsAString& aMajorType,
const nsAString& aMinorType,
nsAString& aFileExtensions,
nsAString& aDescription) {
LOG(("-- LookUpExtensionsAndDescription for type '%s/%s'\n",
NS_LossyConvertUTF16toASCII(aMajorType).get(),
NS_LossyConvertUTF16toASCII(aMinorType).get()));
nsresult rv = NS_OK;
nsAutoString mimeFileName;
rv = GetFileLocation("helpers.private_mime_types_file",
nullptr, mimeFileName);
if (NS_SUCCEEDED(rv) && !mimeFileName.IsEmpty()) {
rv = GetExtensionsAndDescriptionFromMimetypesFile(mimeFileName,
aMajorType,
aMinorType,
aFileExtensions,
aDescription);
} else {
rv = NS_ERROR_NOT_AVAILABLE;
}
if (NS_FAILED(rv) || aFileExtensions.IsEmpty()) {
rv = GetFileLocation("helpers.global_mime_types_file",
nullptr, mimeFileName);
if (NS_SUCCEEDED(rv) && !mimeFileName.IsEmpty()) {
rv = GetExtensionsAndDescriptionFromMimetypesFile(mimeFileName,
aMajorType,
aMinorType,
aFileExtensions,
aDescription);
} else {
rv = NS_ERROR_NOT_AVAILABLE;
}
}
return rv;
}
/* Open the file, read the first line, decide what type of file it is,
then get info based on extension */
// static
nsresult
nsOSHelperAppService::GetExtensionsAndDescriptionFromMimetypesFile(const nsAString& aFilename,
const nsAString& aMajorType,
const nsAString& aMinorType,
nsAString& aFileExtensions,
nsAString& aDescription) {
LOG(("-- GetExtensionsAndDescriptionFromMimetypesFile\n"));
LOG(("Getting extensions and description from types file '%s'\n",
NS_LossyConvertUTF16toASCII(aFilename).get()));
LOG(("Using type '%s/%s'\n",
NS_LossyConvertUTF16toASCII(aMajorType).get(),
NS_LossyConvertUTF16toASCII(aMinorType).get()));
nsresult rv = NS_OK;
nsCOMPtr<nsIFileInputStream> mimeFile;
nsCOMPtr<nsILineInputStream> mimeTypes;
bool netscapeFormat;
nsAutoString buf;
nsAutoCString cBuf;
bool more = false;
rv = CreateInputStream(aFilename, getter_AddRefs(mimeFile), getter_AddRefs(mimeTypes),
cBuf, &netscapeFormat, &more);
if (NS_FAILED(rv)) {
return rv;
}
nsAutoString extensions;
nsString entry;
entry.SetCapacity(100);
nsAString::const_iterator majorTypeStart, majorTypeEnd,
minorTypeStart, minorTypeEnd,
descriptionStart, descriptionEnd;
do {
CopyASCIItoUTF16(cBuf, buf);
// read through, building up an entry. If we finish an entry, check for
// a match and return out of the loop if we match
// skip comments and empty lines
if (!buf.IsEmpty() && buf.First() != '#') {
entry.Append(buf);
if (entry.Last() == '\\') {
entry.Truncate(entry.Length() - 1);
entry.Append(PRUnichar(' ')); // in case there is no trailing whitespace on this line
} else { // we have a full entry
LOG(("Current entry: '%s'\n",
NS_LossyConvertUTF16toASCII(entry).get()));
if (netscapeFormat) {
rv = ParseNetscapeMIMETypesEntry(entry,
majorTypeStart, majorTypeEnd,
minorTypeStart, minorTypeEnd,
extensions,
descriptionStart, descriptionEnd);
if (NS_FAILED(rv)) {
// We sometimes get things like RealPlayer appending
// "normal" entries to "Netscape" .mime.types files. Try
// to handle that. Bug 106381.
LOG(("Bogus entry; trying 'normal' mode\n"));
rv = ParseNormalMIMETypesEntry(entry,
majorTypeStart, majorTypeEnd,
minorTypeStart, minorTypeEnd,
extensions,
descriptionStart, descriptionEnd);
}
} else {
rv = ParseNormalMIMETypesEntry(entry,
majorTypeStart, majorTypeEnd,
minorTypeStart,
minorTypeEnd, extensions,
descriptionStart, descriptionEnd);
if (NS_FAILED(rv)) {
// We sometimes get things like StarOffice prepending
// "normal" entries to "Netscape" .mime.types files. Try
// to handle that. Bug 136670.
LOG(("Bogus entry; trying 'Netscape' mode\n"));
rv = ParseNetscapeMIMETypesEntry(entry,
majorTypeStart, majorTypeEnd,
minorTypeStart, minorTypeEnd,
extensions,
descriptionStart, descriptionEnd);
}
}
if (NS_SUCCEEDED(rv) &&
Substring(majorTypeStart,
majorTypeEnd).Equals(aMajorType,
nsCaseInsensitiveStringComparator())&&
Substring(minorTypeStart,
minorTypeEnd).Equals(aMinorType,
nsCaseInsensitiveStringComparator())) {
// it's a match
aFileExtensions.Assign(extensions);
aDescription.Assign(Substring(descriptionStart, descriptionEnd));
mimeFile->Close();
return NS_OK;
} else if (NS_FAILED(rv)) {
LOG(("Failed to parse entry: %s\n", NS_LossyConvertUTF16toASCII(entry).get()));
}
entry.Truncate();
}
}
if (!more) {
rv = NS_ERROR_NOT_AVAILABLE;
break;
}
// read the next line
rv = mimeTypes->ReadLine(cBuf, &more);
} while (NS_SUCCEEDED(rv));
mimeFile->Close();
return rv;
}
/*
* This parses a Netscape format mime.types entry. There are two
* possible formats:
*
* type=foo/bar; options exts="baz" description="Some type"
*
* and
*
* type=foo/bar; options description="Some type" exts="baz"
*/
// static
nsresult
nsOSHelperAppService::ParseNetscapeMIMETypesEntry(const nsAString& aEntry,
nsAString::const_iterator& aMajorTypeStart,
nsAString::const_iterator& aMajorTypeEnd,
nsAString::const_iterator& aMinorTypeStart,
nsAString::const_iterator& aMinorTypeEnd,
nsAString& aExtensions,
nsAString::const_iterator& aDescriptionStart,
nsAString::const_iterator& aDescriptionEnd) {
LOG(("-- ParseNetscapeMIMETypesEntry\n"));
NS_ASSERTION(!aEntry.IsEmpty(), "Empty Netscape MIME types entry being parsed.");
nsAString::const_iterator start_iter, end_iter, match_start, match_end;
aEntry.BeginReading(start_iter);
aEntry.EndReading(end_iter);
// skip trailing whitespace
do {
--end_iter;
} while (end_iter != start_iter &&
nsCRT::IsAsciiSpace(*end_iter));
// if we're pointing to a quote, don't advance -- we don't want to
// include the quote....
if (*end_iter != '"')
++end_iter;
match_start = start_iter;
match_end = end_iter;
// Get the major and minor types
// First the major type
if (! FindInReadable(NS_LITERAL_STRING("type="), match_start, match_end)) {
return NS_ERROR_FAILURE;
}
match_start = match_end;
while (match_end != end_iter &&
*match_end != '/') {
++match_end;
}
if (match_end == end_iter) {
return NS_ERROR_FAILURE;
}
aMajorTypeStart = match_start;
aMajorTypeEnd = match_end;
// now the minor type
if (++match_end == end_iter) {
return NS_ERROR_FAILURE;
}
match_start = match_end;
while (match_end != end_iter &&
!nsCRT::IsAsciiSpace(*match_end) &&
*match_end != ';') {
++match_end;
}
if (match_end == end_iter) {
return NS_ERROR_FAILURE;
}
aMinorTypeStart = match_start;
aMinorTypeEnd = match_end;
// ignore everything up to the end of the mime type from here on
start_iter = match_end;
// get the extensions
match_start = match_end;
match_end = end_iter;
if (FindInReadable(NS_LITERAL_STRING("exts="), match_start, match_end)) {
nsAString::const_iterator extStart, extEnd;
if (match_end == end_iter ||
(*match_end == '"' && ++match_end == end_iter)) {
return NS_ERROR_FAILURE;
}
extStart = match_end;
match_start = extStart;
match_end = end_iter;
if (FindInReadable(NS_LITERAL_STRING("desc=\""), match_start, match_end)) {
// exts= before desc=, so we have to find the actual end of the extensions
extEnd = match_start;
if (extEnd == extStart) {
return NS_ERROR_FAILURE;
}
do {
--extEnd;
} while (extEnd != extStart &&
nsCRT::IsAsciiSpace(*extEnd));
if (extEnd != extStart && *extEnd == '"') {
--extEnd;
}
} else {
// desc= before exts=, so we can use end_iter as the end of the extensions
extEnd = end_iter;
}
aExtensions = Substring(extStart, extEnd);
} else {
// no extensions
aExtensions.Truncate();
}
// get the description
match_start = start_iter;
match_end = end_iter;
if (FindInReadable(NS_LITERAL_STRING("desc=\""), match_start, match_end)) {
aDescriptionStart = match_end;
match_start = aDescriptionStart;
match_end = end_iter;
if (FindInReadable(NS_LITERAL_STRING("exts="), match_start, match_end)) {
// exts= after desc=, so have to find actual end of description
aDescriptionEnd = match_start;
if (aDescriptionEnd == aDescriptionStart) {
return NS_ERROR_FAILURE;
}
do {
--aDescriptionEnd;
} while (aDescriptionEnd != aDescriptionStart &&
nsCRT::IsAsciiSpace(*aDescriptionEnd));
if (aDescriptionStart != aDescriptionStart && *aDescriptionEnd == '"') {
--aDescriptionEnd;
}
} else {
// desc= after exts=, so use end_iter for the description end
aDescriptionEnd = end_iter;
}
} else {
// no description
aDescriptionStart = start_iter;
aDescriptionEnd = start_iter;
}
return NS_OK;
}
/*
* This parses a normal format mime.types entry. The format is:
*
* major/minor ext1 ext2 ext3
*/
// static
nsresult
nsOSHelperAppService::ParseNormalMIMETypesEntry(const nsAString& aEntry,
nsAString::const_iterator& aMajorTypeStart,
nsAString::const_iterator& aMajorTypeEnd,
nsAString::const_iterator& aMinorTypeStart,
nsAString::const_iterator& aMinorTypeEnd,
nsAString& aExtensions,
nsAString::const_iterator& aDescriptionStart,
nsAString::const_iterator& aDescriptionEnd) {
LOG(("-- ParseNormalMIMETypesEntry\n"));
NS_ASSERTION(!aEntry.IsEmpty(), "Empty Normal MIME types entry being parsed.");
nsAString::const_iterator start_iter, end_iter, iter;
aEntry.BeginReading(start_iter);
aEntry.EndReading(end_iter);
// no description
aDescriptionStart = start_iter;
aDescriptionEnd = start_iter;
// skip leading whitespace
while (start_iter != end_iter && nsCRT::IsAsciiSpace(*start_iter)) {
++start_iter;
}
if (start_iter == end_iter) {
return NS_ERROR_FAILURE;
}
// skip trailing whitespace
do {
--end_iter;
} while (end_iter != start_iter && nsCRT::IsAsciiSpace(*end_iter));
++end_iter; // point to first whitespace char (or to end of string)
iter = start_iter;
// get the major type
if (! FindCharInReadable('/', iter, end_iter))
return NS_ERROR_FAILURE;
nsAString::const_iterator equals_sign_iter(start_iter);
if (FindCharInReadable('=', equals_sign_iter, iter))
return NS_ERROR_FAILURE; // see bug 136670
aMajorTypeStart = start_iter;
aMajorTypeEnd = iter;
// get the minor type
if (++iter == end_iter) {
return NS_ERROR_FAILURE;
}
start_iter = iter;
while (iter != end_iter && !nsCRT::IsAsciiSpace(*iter)) {
++iter;
}
aMinorTypeStart = start_iter;
aMinorTypeEnd = iter;
// get the extensions
aExtensions.Truncate();
while (iter != end_iter) {
while (iter != end_iter && nsCRT::IsAsciiSpace(*iter)) {
++iter;
}
start_iter = iter;
while (iter != end_iter && !nsCRT::IsAsciiSpace(*iter)) {
++iter;
}
aExtensions.Append(Substring(start_iter, iter));
if (iter != end_iter) { // not the last extension
aExtensions.Append(PRUnichar(','));
}
}
return NS_OK;
}
// static
nsresult
nsOSHelperAppService::LookUpHandlerAndDescription(const nsAString& aMajorType,
const nsAString& aMinorType,
nsHashtable& aTypeOptions,
nsAString& aHandler,
nsAString& aDescription,
nsAString& aMozillaFlags) {
LOG(("-- LookUpHandlerAndDescription for type '%s/%s'\n",
NS_LossyConvertUTF16toASCII(aMajorType).get(),
NS_LossyConvertUTF16toASCII(aMinorType).get()));
nsresult rv = NS_OK;
nsAutoString mailcapFileName;
rv = GetFileLocation("helpers.private_mailcap_file",
"PERSONAL_MAILCAP", mailcapFileName);
if (NS_SUCCEEDED(rv) && !mailcapFileName.IsEmpty()) {
rv = GetHandlerAndDescriptionFromMailcapFile(mailcapFileName,
aMajorType,
aMinorType,
aTypeOptions,
aHandler,
aDescription,
aMozillaFlags);
} else {
rv = NS_ERROR_NOT_AVAILABLE;
}
if (NS_FAILED(rv) || aHandler.IsEmpty()) {
rv = GetFileLocation("helpers.global_mailcap_file",
"MAILCAP", mailcapFileName);
if (NS_SUCCEEDED(rv) && !mailcapFileName.IsEmpty()) {
rv = GetHandlerAndDescriptionFromMailcapFile(mailcapFileName,
aMajorType,
aMinorType,
aTypeOptions,
aHandler,
aDescription,
aMozillaFlags);
} else {
rv = NS_ERROR_NOT_AVAILABLE;
}
}
return rv;
}
// static
nsresult
nsOSHelperAppService::GetHandlerAndDescriptionFromMailcapFile(const nsAString& aFilename,
const nsAString& aMajorType,
const nsAString& aMinorType,
nsHashtable& aTypeOptions,
nsAString& aHandler,
nsAString& aDescription,
nsAString& aMozillaFlags) {
LOG(("-- GetHandlerAndDescriptionFromMailcapFile\n"));
LOG(("Getting handler and description from mailcap file '%s'\n",
NS_LossyConvertUTF16toASCII(aFilename).get()));
LOG(("Using type '%s/%s'\n",
NS_LossyConvertUTF16toASCII(aMajorType).get(),
NS_LossyConvertUTF16toASCII(aMinorType).get()));
nsresult rv = NS_OK;
bool more = false;
nsCOMPtr<nsIFile> file(do_CreateInstance(NS_LOCAL_FILE_CONTRACTID, &rv));
if (NS_FAILED(rv))
return rv;
rv = file->InitWithPath(aFilename);
if (NS_FAILED(rv))
return rv;
nsCOMPtr<nsIFileInputStream> mailcapFile(do_CreateInstance(NS_LOCALFILEINPUTSTREAM_CONTRACTID, &rv));
if (NS_FAILED(rv))
return rv;
rv = mailcapFile->Init(file, -1, -1, false);
if (NS_FAILED(rv))
return rv;
nsCOMPtr<nsILineInputStream> mailcap (do_QueryInterface(mailcapFile, &rv));
if (NS_FAILED(rv)) {
LOG(("Interface trouble in stream land!"));
return rv;
}
nsString entry, buffer;
nsAutoCString cBuffer;
entry.SetCapacity(128);
cBuffer.SetCapacity(80);
rv = mailcap->ReadLine(cBuffer, &more);
if (NS_FAILED(rv)) {
mailcapFile->Close();
return rv;
}
do { // return on end-of-file in the loop
CopyASCIItoUTF16(cBuffer, buffer);
if (!buffer.IsEmpty() && buffer.First() != '#') {
entry.Append(buffer);
if (entry.Last() == '\\') { // entry continues on next line
entry.Truncate(entry.Length()-1);
entry.Append(PRUnichar(' ')); // in case there is no trailing whitespace on this line
} else { // we have a full entry in entry. Check it for the type
LOG(("Current entry: '%s'\n",
NS_LossyConvertUTF16toASCII(entry).get()));
nsAString::const_iterator semicolon_iter,
start_iter, end_iter,
majorTypeStart, majorTypeEnd,
minorTypeStart, minorTypeEnd;
entry.BeginReading(start_iter);
entry.EndReading(end_iter);
semicolon_iter = start_iter;
FindSemicolon(semicolon_iter, end_iter);
if (semicolon_iter != end_iter) { // we have something resembling a valid entry
rv = ParseMIMEType(start_iter, majorTypeStart, majorTypeEnd,
minorTypeStart, minorTypeEnd, semicolon_iter);
if (NS_SUCCEEDED(rv) &&
Substring(majorTypeStart,
majorTypeEnd).Equals(aMajorType,
nsCaseInsensitiveStringComparator()) &&
Substring(minorTypeStart,
minorTypeEnd).Equals(aMinorType,
nsCaseInsensitiveStringComparator())) { // we have a match
bool match = true;
++semicolon_iter; // point at the first char past the semicolon
start_iter = semicolon_iter; // handler string starts here
FindSemicolon(semicolon_iter, end_iter);
while (start_iter != semicolon_iter &&
nsCRT::IsAsciiSpace(*start_iter)) {
++start_iter;
}
LOG(("The real handler is: '%s'\n",
NS_LossyConvertUTF16toASCII(Substring(start_iter,
semicolon_iter)).get()));
// XXX ugly hack. Just grab the executable name
nsAString::const_iterator end_handler_iter = semicolon_iter;
nsAString::const_iterator end_executable_iter = start_iter;
while (end_executable_iter != end_handler_iter &&
!nsCRT::IsAsciiSpace(*end_executable_iter)) {
++end_executable_iter;
}
// XXX End ugly hack
aHandler = Substring(start_iter, end_executable_iter);
nsAString::const_iterator start_option_iter, end_optionname_iter, equal_sign_iter;
bool equalSignFound;
while (match &&
semicolon_iter != end_iter &&
++semicolon_iter != end_iter) { // there are options left and we still match
start_option_iter = semicolon_iter;
// skip over leading whitespace
while (start_option_iter != end_iter &&
nsCRT::IsAsciiSpace(*start_option_iter)) {
++start_option_iter;
}
if (start_option_iter == end_iter) { // nothing actually here
break;
}
semicolon_iter = start_option_iter;
FindSemicolon(semicolon_iter, end_iter);
equal_sign_iter = start_option_iter;
equalSignFound = false;
while (equal_sign_iter != semicolon_iter && !equalSignFound) {
switch(*equal_sign_iter) {
case '\\':
equal_sign_iter.advance(2);
break;
case '=':
equalSignFound = true;
break;
default:
++equal_sign_iter;
break;
}
}
end_optionname_iter = start_option_iter;
// find end of option name
while (end_optionname_iter != equal_sign_iter &&
!nsCRT::IsAsciiSpace(*end_optionname_iter)) {
++end_optionname_iter;
}
nsDependentSubstring optionName(start_option_iter, end_optionname_iter);
if (equalSignFound) {
// This is an option that has a name and value
if (optionName.EqualsLiteral("description")) {
aDescription = Substring(++equal_sign_iter, semicolon_iter);
} else if (optionName.EqualsLiteral("x-mozilla-flags")) {
aMozillaFlags = Substring(++equal_sign_iter, semicolon_iter);
} else if (optionName.EqualsLiteral("test")) {
nsAutoCString testCommand;
rv = UnescapeCommand(Substring(++equal_sign_iter, semicolon_iter),
aMajorType,
aMinorType,
aTypeOptions,
testCommand);
LOG(("Running Test: %s\n", testCommand.get()));
// XXX this should not use system(), since that can block the UI thread!
if (NS_SUCCEEDED(rv) && system(testCommand.get()) != 0) {
match = false;
}
}
} else {
// This is an option that just has a name but no value (eg "copiousoutput")
}
}
if (match) { // we did not fail any test clauses; all is good
// get out of here
mailcapFile->Close();
return NS_OK;
} else { // pretend that this match never happened
aDescription.Truncate();
aMozillaFlags.Truncate();
aHandler.Truncate();
}
}
}
// zero out the entry for the next cycle
entry.Truncate();
}
}
if (!more) {
rv = NS_ERROR_NOT_AVAILABLE;
break;
}
rv = mailcap->ReadLine(cBuffer, &more);
} while (NS_SUCCEEDED(rv));
mailcapFile->Close();
return rv;
}
nsresult nsOSHelperAppService::OSProtocolHandlerExists(const char * aProtocolScheme, bool * aHandlerExists)
{
LOG(("-- nsOSHelperAppService::OSProtocolHandlerExists for '%s'\n",
aProtocolScheme));
*aHandlerExists = false;
/* if applications.protocol is in prefs, then we have an external protocol handler */
nsresult rv;
nsAutoCString branchName =
NS_LITERAL_CSTRING("applications.") + nsDependentCString(aProtocolScheme);
nsAutoCString prefName = branchName + branchName;
nsAdoptingCString prefString = Preferences::GetCString(prefName.get());
*aHandlerExists = !prefString.IsEmpty();
if (*aHandlerExists) {
return NS_OK;
}
/* Check the OS/2 INI for the protocol */
char szAppFromINI[CCHMAXPATH];
char szParamsFromINI[MAXINIPARAMLENGTH];
rv = GetApplicationAndParametersFromINI(nsDependentCString(aProtocolScheme),
szAppFromINI, sizeof(szAppFromINI),
szParamsFromINI, sizeof(szParamsFromINI));
if (NS_SUCCEEDED(rv)) {
*aHandlerExists = true;
}
return NS_OK;
}
already_AddRefed<nsMIMEInfoOS2>
nsOSHelperAppService::GetFromExtension(const nsCString& aFileExt) {
// if the extension is empty, return immediately
if (aFileExt.IsEmpty())
return nullptr;
LOG(("Here we do an extension lookup for '%s'\n", aFileExt.get()));
nsresult rv;
nsAutoString majorType, minorType,
mime_types_description, mailcap_description,
handler, mozillaFlags;
rv = LookUpTypeAndDescription(NS_ConvertUTF8toUTF16(aFileExt),
majorType,
minorType,
mime_types_description);
if (NS_FAILED(rv))
return nullptr;
NS_LossyConvertUTF16toASCII asciiMajorType(majorType);
NS_LossyConvertUTF16toASCII asciiMinorType(minorType);
LOG(("Type/Description results: majorType='%s', minorType='%s', description='%s'\n",
asciiMajorType.get(),
asciiMinorType.get(),
NS_LossyConvertUTF16toASCII(mime_types_description).get()));
if (majorType.IsEmpty() && minorType.IsEmpty()) {
// we didn't get a type mapping, so we can't do anything useful
return nullptr;
}
nsAutoCString mimeType(asciiMajorType + NS_LITERAL_CSTRING("/") + asciiMinorType);
nsMIMEInfoOS2* mimeInfo = new nsMIMEInfoOS2(mimeType);
if (!mimeInfo)
return nullptr;
NS_ADDREF(mimeInfo);
mimeInfo->AppendExtension(aFileExt);
nsHashtable typeOptions; // empty hash table
// The mailcap lookup is two-pass to handle the case of mailcap files
// that have something like:
//
// text/*; emacs %s
// text/rtf; soffice %s
//
// in that order. We want to pick up "soffice" for text/rtf in such cases
rv = LookUpHandlerAndDescription(majorType, minorType, typeOptions,
handler, mailcap_description,
mozillaFlags);
if (NS_FAILED(rv)) {
// maybe we have an entry for "majorType/*"?
rv = LookUpHandlerAndDescription(majorType, NS_LITERAL_STRING("*"),
typeOptions, handler, mailcap_description,
mozillaFlags);
}
LOG(("Handler/Description results: handler='%s', description='%s', mozillaFlags='%s'\n",
NS_LossyConvertUTF16toASCII(handler).get(),
NS_LossyConvertUTF16toASCII(mailcap_description).get(),
NS_LossyConvertUTF16toASCII(mozillaFlags).get()));
mailcap_description.Trim(" \t\"");
mozillaFlags.Trim(" \t");
if (!mime_types_description.IsEmpty()) {
mimeInfo->SetDescription(mime_types_description);
} else {
mimeInfo->SetDescription(mailcap_description);
}
if (NS_SUCCEEDED(rv) && !handler.IsEmpty()) {
nsCOMPtr<nsIFile> handlerFile;
rv = GetFileTokenForPath(handler.get(), getter_AddRefs(handlerFile));
if (NS_SUCCEEDED(rv)) {
mimeInfo->SetDefaultApplication(handlerFile);
mimeInfo->SetPreferredAction(nsIMIMEInfo::useSystemDefault);
mimeInfo->SetDefaultDescription(handler);
}
} else {
mimeInfo->SetPreferredAction(nsIMIMEInfo::saveToDisk);
}
return mimeInfo;
}
already_AddRefed<nsMIMEInfoOS2>
nsOSHelperAppService::GetFromType(const nsCString& aMIMEType) {
// if the extension is empty, return immediately
if (aMIMEType.IsEmpty())
return nullptr;
LOG(("Here we do a mimetype lookup for '%s'\n", aMIMEType.get()));
nsresult rv;
nsAutoString extensions,
mime_types_description, mailcap_description,
handler, mozillaFlags;
nsHashtable typeOptions;
// extract the major and minor types
NS_ConvertASCIItoUTF16 mimeType(aMIMEType);
nsAString::const_iterator start_iter, end_iter,
majorTypeStart, majorTypeEnd,
minorTypeStart, minorTypeEnd;
mimeType.BeginReading(start_iter);
mimeType.EndReading(end_iter);
// XXX FIXME: add typeOptions parsing in here
rv = ParseMIMEType(start_iter, majorTypeStart, majorTypeEnd,
minorTypeStart, minorTypeEnd, end_iter);
if (NS_FAILED(rv)) {
return nullptr;
}
nsDependentSubstring majorType(majorTypeStart, majorTypeEnd);
nsDependentSubstring minorType(minorTypeStart, minorTypeEnd);
// The mailcap lookup is two-pass to handle the case of mailcap files
// that have something like:
//
// text/*; emacs %s
// text/rtf; soffice %s
//
// in that order. We want to pick up "soffice" for text/rtf in such cases
rv = LookUpHandlerAndDescription(majorType,
minorType,
typeOptions,
handler,
mailcap_description,
mozillaFlags);
if (NS_FAILED(rv)) {
// maybe we have an entry for "majorType/*"?
rv = LookUpHandlerAndDescription(majorType,
NS_LITERAL_STRING("*"),
typeOptions,
handler,
mailcap_description,
mozillaFlags);
}
LOG(("Handler/Description results: handler='%s', description='%s', mozillaFlags='%s'\n",
NS_LossyConvertUTF16toASCII(handler).get(),
NS_LossyConvertUTF16toASCII(mailcap_description).get(),
NS_LossyConvertUTF16toASCII(mozillaFlags).get()));
if (handler.IsEmpty()) {
// we have no useful info....
return nullptr;
}
mailcap_description.Trim(" \t\"");
mozillaFlags.Trim(" \t");
LookUpExtensionsAndDescription(majorType,
minorType,
extensions,
mime_types_description);
nsMIMEInfoOS2* mimeInfo = new nsMIMEInfoOS2(aMIMEType);
if (!mimeInfo)
return nullptr;
NS_ADDREF(mimeInfo);
mimeInfo->SetFileExtensions(NS_ConvertUTF16toUTF8(extensions));
if (! mime_types_description.IsEmpty()) {
mimeInfo->SetDescription(mime_types_description);
} else {
mimeInfo->SetDescription(mailcap_description);
}
nsCOMPtr<nsIFile> handlerFile;
rv = GetFileTokenForPath(handler.get(), getter_AddRefs(handlerFile));
if (NS_SUCCEEDED(rv)) {
mimeInfo->SetDefaultApplication(handlerFile);
mimeInfo->SetPreferredAction(nsIMIMEInfo::useSystemDefault);
mimeInfo->SetDefaultDescription(handler);
} else {
mimeInfo->SetPreferredAction(nsIMIMEInfo::saveToDisk);
}
return mimeInfo;
}
//------------------------------------------------------------------------
// returns a localized string from unknownContentType.properties
static nsresult
GetNLSString(const PRUnichar *aKey, nsAString& result)
{
nsCOMPtr<nsIStringBundleService> bundleSvc =
mozilla::services::GetStringBundleService();
if (!bundleSvc)
return NS_ERROR_FAILURE;
nsCOMPtr<nsIStringBundle> bundle;
nsresult rv = bundleSvc->CreateBundle(
"chrome://mozapps/locale/downloads/unknownContentType.properties",
getter_AddRefs(bundle));
NS_ENSURE_SUCCESS(rv, rv);
nsXPIDLString string;
rv = bundle->GetStringFromName(aKey, getter_Copies(string));
NS_ENSURE_SUCCESS(rv, rv);
result.Assign(string);
return rv;
}
//------------------------------------------------------------------------
// returns the handle of the WPS object associated with a file extension;
// if RWS isn't being used or there's no association, returns zero;
// also constructs a description of the handler based on available info
static uint32_t
WpsGetDefaultHandler(const char *aFileExt, nsAString& aDescription)
{
aDescription.Truncate();
if (sUseRws) {
nsCOMPtr<nsIRwsService> rwsSvc(do_GetService("@mozilla.org/rwsos2;1"));
if (!rwsSvc)
sUseRws = false;
else {
uint32_t handle;
// the handle may be zero if the WPS class provides the default handler
if (NS_SUCCEEDED(rwsSvc->HandlerFromExtension(aFileExt, &handle, aDescription)))
return handle;
}
}
// no RWS or RWS failed to return at least a description
if (NS_FAILED(GetNLSString(NS_LITERAL_STRING("wpsDefaultOS2").get(),
aDescription)))
aDescription.Assign(NS_LITERAL_STRING("WPS default"));
return 0;
}
//------------------------------------------------------------------------
// this constructs the system-default entry when neither mailcap nor
// mime.types provided any info
static void
WpsMimeInfoFromExtension(const char *aFileExt, nsMIMEInfoOS2 *aMI)
{
// this identifies whether the mimetype is a bogus
// "application/octet-stream" generated when no match
// could be found for this extension
bool exists;
aMI->ExtensionExists(nsDependentCString(aFileExt), &exists);
// get the default app's description and WPS handle (if any)
nsAutoString ustr;
uint32_t handle = WpsGetDefaultHandler(aFileExt, ustr);
aMI->SetDefaultDescription(ustr);
aMI->SetDefaultAppHandle(handle);
// if the mimeinfo is bogus, change the mimetype & extensions list
if (!exists) {
nsAutoCString extLower;
nsAutoCString cstr;
ToLowerCase(nsDependentCString(aFileExt), extLower);
cstr.Assign(NS_LITERAL_CSTRING("application/x-") + extLower);
aMI->SetMIMEType(cstr);
aMI->SetFileExtensions(extLower);
}
// if the mimetype is valid, perhaps we can supply a description;
// if it's bogus, replace the description
if (exists)
aMI->GetDescription(ustr);
else
ustr.Truncate();
if (ustr.IsEmpty()) {
nsAutoCString extUpper;
ToUpperCase(nsDependentCString(aFileExt), extUpper);
CopyUTF8toUTF16(extUpper, ustr);
nsAutoString fileType;
if (NS_FAILED(GetNLSString(NS_LITERAL_STRING("fileType").get(), fileType)))
ustr.Assign(NS_LITERAL_STRING("%S file"));
int pos = -1;
if ((pos = fileType.Find("%S")) > -1)
fileType.Replace(pos, 2, ustr);
aMI->SetDescription(fileType);
}
}
//------------------------------------------------------------------------
// this is an override of nsExternalHelperAppService's method;
// after the parent's method has looked for a handler, add
// an entry for the WPS's handler if there's room and one exists;
// it will never replace entries from mailcap or mimetypes.rdf
NS_IMETHODIMP
nsOSHelperAppService::GetFromTypeAndExtension(const nsACString& aMIMEType,
const nsACString& aFileExt,
nsIMIMEInfo **_retval)
{
// let the existing code do its thing
nsresult rv = nsExternalHelperAppService::GetFromTypeAndExtension(
aMIMEType, aFileExt, _retval);
NS_ENSURE_SUCCESS(rv, rv);
// this is needed for Get/SetDefaultApplication()
nsMIMEInfoOS2 *mi = static_cast<nsMIMEInfoOS2*>(*_retval);
// do lookups using the original extension if present;
// otherwise use the extension derived from the mimetype
nsAutoCString ext;
if (!aFileExt.IsEmpty())
ext.Assign(aFileExt);
else {
mi->GetPrimaryExtension(ext);
if (ext.IsEmpty())
return NS_OK;
}
nsCOMPtr<nsIFile> defApp;
nsCOMPtr<nsIHandlerApp> prefApp;
mi->GetDefaultApplication(getter_AddRefs(defApp));
mi->GetPreferredApplicationHandler(getter_AddRefs(prefApp));
nsCOMPtr<nsILocalHandlerApp> locPrefApp = do_QueryInterface(prefApp, &rv);
// if neither mailcap nor mimetypes.rdf had an entry,
// create a default entry using the WPS handler
if (!defApp && !locPrefApp) {
WpsMimeInfoFromExtension(ext.get(), mi);
return NS_OK;
}
bool gotPromoted = false;
// both mailcap & mimetypes.rdf have an entry; if they're
// different, exit; otherwise, clear the default entry
if (defApp && locPrefApp) {
bool sameFile;
nsCOMPtr<nsIFile> app;
rv = locPrefApp->GetExecutable(getter_AddRefs(app));
NS_ENSURE_SUCCESS(rv, rv);
defApp->Equals(app, &sameFile);
if (!sameFile)
return NS_OK;
defApp = 0;
mi->SetDefaultApplication(0);
mi->SetDefaultDescription(EmptyString());
gotPromoted = true;
}
nsAutoString description;
// mailcap has an entry but mimetypes.rdf doesn't;
// promote mailcap's entry to preferred
if (defApp && !locPrefApp) {
mi->GetDefaultDescription(description);
nsLocalHandlerApp *handlerApp(new nsLocalHandlerApp(description, defApp));
mi->SetPreferredApplicationHandler(handlerApp);
gotPromoted = true;
}
// if the former default app was promoted to preferred app,
// update preferred action if appropriate
if (gotPromoted) {
nsHandlerInfoAction action;
mi->GetPreferredAction(&action);
if (action == nsIMIMEInfo::useSystemDefault) {
mi->SetPreferredAction(nsIMIMEInfo::useHelperApp);
mi->SetPreferredAction(nsIMIMEInfo::useHelperApp);
}
}
// use the WPS default as the system default handler
uint32_t handle = WpsGetDefaultHandler(ext.get(), description);
mi->SetDefaultDescription(description);
mi->SetDefaultApplication(0);
mi->SetDefaultAppHandle(handle);
return NS_OK;
}
//------------------------------------------------------------------------
already_AddRefed<nsIMIMEInfo>
nsOSHelperAppService::GetMIMEInfoFromOS(const nsACString& aType,
const nsACString& aFileExt,
bool *aFound) {
*aFound = true;
nsMIMEInfoOS2* retval = GetFromType(PromiseFlatCString(aType)).get();
bool hasDefault = false;
if (retval)
retval->GetHasDefaultHandler(&hasDefault);
if (!retval || !hasDefault) {
nsRefPtr<nsMIMEInfoOS2> miByExt = GetFromExtension(PromiseFlatCString(aFileExt));
// If we had no extension match, but a type match, use that
if (!miByExt && retval)
return retval;
// If we had an extension match but no type match, set the mimetype and use
// it
if (!retval && miByExt) {
if (!aType.IsEmpty())
miByExt->SetMIMEType(aType);
miByExt.swap(retval);
return retval;
}
// If we got nothing, make a new mimeinfo
if (!retval) {
*aFound = false;
retval = new nsMIMEInfoOS2(aType);
if (retval) {
NS_ADDREF(retval);
if (!aFileExt.IsEmpty())
retval->AppendExtension(aFileExt);
}
return retval;
}
// Copy the attributes of retval onto miByExt, to return it
retval->CopyBasicDataTo(miByExt);
miByExt.swap(retval);
}
return retval;
}
NS_IMETHODIMP
nsOSHelperAppService::GetProtocolHandlerInfoFromOS(const nsACString &aScheme,
bool *found,
nsIHandlerInfo **_retval)
{
NS_ASSERTION(!aScheme.IsEmpty(), "No scheme was specified!");
nsresult rv = OSProtocolHandlerExists(nsPromiseFlatCString(aScheme).get(),
found);
if (NS_FAILED(rv))
return rv;
nsMIMEInfoOS2 *handlerInfo =
new nsMIMEInfoOS2(aScheme, nsMIMEInfoBase::eProtocolInfo);
NS_ENSURE_TRUE(handlerInfo, NS_ERROR_OUT_OF_MEMORY);
NS_ADDREF(*_retval = handlerInfo);
if (!*found) {
// Code that calls this requires an object regardless if the OS has
// something for us, so we return the empty object.
return NS_OK;
}
nsAutoString desc;
GetApplicationDescription(aScheme, desc);
handlerInfo->SetDefaultDescription(desc);
return NS_OK;
}
NS_IMETHODIMP
nsOSHelperAppService::GetApplicationDescription(const nsACString& aScheme, nsAString& _retval)
{
nsresult rv;
nsAutoCString branchName = NS_LITERAL_CSTRING("applications.") + aScheme;
nsAutoCString applicationName;
nsAutoCString prefName = branchName + branchName;
nsAdoptingCString prefString = Preferences::GetCString(prefName.get());
if (!prefString) { // failed
char szAppFromINI[CCHMAXPATH];
char szParamsFromINI[MAXINIPARAMLENGTH];
/* did OS2.INI contain application? */
rv = GetApplicationAndParametersFromINI(aScheme,
szAppFromINI, sizeof(szAppFromINI),
szParamsFromINI, sizeof(szParamsFromINI));
if (NS_SUCCEEDED(rv)) {
applicationName = szAppFromINI;
} else {
return NS_ERROR_NOT_AVAILABLE;
}
} else if (!prefString.IsEmpty()) { // succeeded and not empty
applicationName.Append(prefString);
}
nsCOMPtr<nsIFile> application;
rv = NS_NewNativeLocalFile(nsDependentCString(applicationName.get()),
false,
getter_AddRefs(application));
if (NS_FAILED(rv)) {
char szAppPath[CCHMAXPATH];
APIRET rc = DosSearchPath(SEARCH_IGNORENETERRS | SEARCH_ENVIRONMENT,
"PATH",
applicationName.get(),
szAppPath,
sizeof(szAppPath));
/* if that worked, we can use the full pathname */
if (rc == NO_ERROR) {
_retval.Assign(NS_ConvertUTF8toUTF16(nsDependentCString(szAppPath)));
return NS_OK;
}
}
/* if the full path is given or not, use what we have */
_retval.Assign(NS_ConvertUTF8toUTF16(applicationName));
return NS_OK;
}
// Check OS/2 INI for application and parameters for the protocol
// return NS_OK, if application exists for protocol in INI and is not empty
nsresult GetApplicationAndParametersFromINI(const nsACString& aProtocol,
char* app, ULONG appLength,
char* param, ULONG paramLength)
{
/* initialize app to '\0' for later check */
*app = '\0';
/* http or https */
if ((aProtocol == NS_LITERAL_CSTRING("http")) ||
(aProtocol == NS_LITERAL_CSTRING("https"))) {
PrfQueryProfileString(HINI_USER,
"WPURLDEFAULTSETTINGS",
"DefaultBrowserExe",
"",
app,
appLength);
PrfQueryProfileString(HINI_USER,
"WPURLDEFAULTSETTINGS",
"DefaultParameters",
"",
param,
paramLength);
}
/* mailto: */
else if (aProtocol == NS_LITERAL_CSTRING("mailto")) {
PrfQueryProfileString(HINI_USER,
"WPURLDEFAULTSETTINGS",
"DefaultMailExe",
"",
app,
appLength);
PrfQueryProfileString(HINI_USER,
"WPURLDEFAULTSETTINGS",
"DefaultMailParameters",
"",
param,
paramLength);
}
/* ftp */
else if (aProtocol == NS_LITERAL_CSTRING("ftp")) {
PrfQueryProfileString(HINI_USER,
"WPURLDEFAULTSETTINGS",
"DefaultFTPExe",
"",
app,
appLength);
PrfQueryProfileString(HINI_USER,
"WPURLDEFAULTSETTINGS",
"DefaultFTPParameters",
"",
param,
paramLength);
}
/* news: or snews: */
else if ((aProtocol == NS_LITERAL_CSTRING("news")) ||
(aProtocol == NS_LITERAL_CSTRING("snews"))) {
PrfQueryProfileString(HINI_USER,
"WPURLDEFAULTSETTINGS",
"DefaultNewsExe",
"",
app,
appLength);
PrfQueryProfileString(HINI_USER,
"WPURLDEFAULTSETTINGS",
"DefaultNewsParameters",
"",
param,
paramLength);
}
/* irc: */
else if (aProtocol == NS_LITERAL_CSTRING("irc")) {
PrfQueryProfileString(HINI_USER,
"WPURLDEFAULTSETTINGS",
"DefaultIRCExe",
"",
app,
appLength);
PrfQueryProfileString(HINI_USER,
"WPURLDEFAULTSETTINGS",
"DefaultIRCParameters",
"",
param,
paramLength);
}
else {
#ifdef DEBUG
// output by hand instead of NS_WARNING() to easily add the protocol
fprintf(stderr, "GetApplicationAndParametersFromINI(): unsupported protocol"
" scheme \"%s\"\n", nsPromiseFlatCString(aProtocol).get());
#endif
return NS_ERROR_FAILURE;
}
/* application string in INI was empty */
if (app[0] == '\0')
return NS_ERROR_FAILURE;
return NS_OK;
}
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