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Storage.cpp
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
/*
* 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 <config.h>
#include "Storage.hpp"
#include <algorithm>
#include <memory>
#include <cassert>
#include <errno.h>
#include <fstream>
#include <iconv.h>
#include <string>
#include <Poco/Exception.h>
#include <Poco/JSON/Object.h>
#include <Poco/JSON/Parser.h>
#if !MOBILEAPP
#include <Poco/Net/AcceptCertificateHandler.h>
#include <Poco/Net/Context.h>
#include <Poco/Net/DNS.h>
#include <Poco/Net/HTTPClientSession.h>
#include <Poco/Net/HTTPRequest.h>
#include <Poco/Net/HTTPResponse.h>
#include <Poco/Net/HTTPSClientSession.h>
#include <Poco/Net/KeyConsoleHandler.h>
#include <Poco/Net/NameValueCollection.h>
#include <Poco/Net/NetworkInterface.h>
#include <Poco/Net/SSLManager.h>
#endif
#include <Poco/StreamCopier.h>
#include <Poco/URI.h>
#include "Auth.hpp"
#include <Common.hpp>
#include "Exceptions.hpp"
#include <Log.hpp>
#include <Unit.hpp>
#include <Util.hpp>
#include "ProofKey.hpp"
#include <common/FileUtil.hpp>
#include <common/JsonUtil.hpp>
bool StorageBase::FilesystemEnabled;
bool StorageBase::WopiEnabled;
bool StorageBase::SSLAsScheme = true;
bool StorageBase::SSLEnabled = false;
Util::RegexListMatcher StorageBase::WopiHosts;
#if !MOBILEAPP
std::string StorageBase::getLocalRootPath() const
{
std::string localPath = _jailPath;
if (localPath[0] == '/')
{
// Remove the leading /
localPath.erase(0, 1);
}
// /chroot/jailId/user/doc/childId
const Poco::Path rootPath = Poco::Path(_localStorePath, localPath);
Poco::File(rootPath).createDirectories();
return rootPath.toString();
}
#endif
void StorageBase::initialize()
{
#if !MOBILEAPP
const auto& app = Poco::Util::Application::instance();
FilesystemEnabled = app.config().getBool("storage.filesystem[@allow]", false);
// Parse the WOPI settings.
WopiHosts.clear();
WopiEnabled = app.config().getBool("storage.wopi[@allow]", false);
if (WopiEnabled)
{
for (size_t i = 0; ; ++i)
{
const std::string path = "storage.wopi.host[" + std::to_string(i) + ']';
const std::string host = app.config().getString(path, "");
if (!host.empty())
{
if (app.config().getBool(path + "[@allow]", false))
{
LOG_INF("Adding trusted WOPI host: [" << host << "].");
WopiHosts.allow(host);
}
else
{
LOG_INF("Adding blocked WOPI host: [" << host << "].");
WopiHosts.deny(host);
}
}
else if (!app.config().has(path))
{
break;
}
}
}
#if ENABLE_SSL
// FIXME: should use our own SSL socket implementation here.
Poco::Crypto::initializeCrypto();
Poco::Net::initializeSSL();
// Init client
Poco::Net::Context::Params sslClientParams;
// false default for upgrade to preserve legacy configuration
// in-config-file defaults are true.
SSLAsScheme = LOOLWSD::getConfigValue<bool>("storage.ssl.as_scheme", false);
// Fallback to ssl.enable if not set - for back compatibility & simplicity.
SSLEnabled = LOOLWSD::getConfigValue<bool>(
"storage.ssl.enable", LOOLWSD::getConfigValue<bool>("ssl.enable", true));
#if ENABLE_DEBUG
char *StorageSSLEnabled = getenv("STORAGE_SSL_ENABLE");
if (StorageSSLEnabled != NULL)
{
if (!strcasecmp(StorageSSLEnabled, "true"))
SSLEnabled = true;
else if (!strcasecmp(StorageSSLEnabled, "false"))
SSLEnabled = false;
}
#endif
if (SSLEnabled)
{
sslClientParams.certificateFile = LOOLWSD::getPathFromConfigWithFallback("storage.ssl.cert_file_path", "ssl.cert_file_path");
sslClientParams.privateKeyFile = LOOLWSD::getPathFromConfigWithFallback("storage.ssl.key_file_path", "ssl.key_file_path");
sslClientParams.caLocation = LOOLWSD::getPathFromConfigWithFallback("storage.ssl.ca_file_path", "ssl.ca_file_path");
sslClientParams.cipherList = LOOLWSD::getPathFromConfigWithFallback("storage.ssl.cipher_list", "ssl.cipher_list");
sslClientParams.verificationMode = (sslClientParams.caLocation.empty() ? Poco::Net::Context::VERIFY_NONE : Poco::Net::Context::VERIFY_STRICT);
sslClientParams.loadDefaultCAs = true;
}
else
sslClientParams.verificationMode = Poco::Net::Context::VERIFY_NONE;
Poco::SharedPtr<Poco::Net::PrivateKeyPassphraseHandler> consoleClientHandler = new Poco::Net::KeyConsoleHandler(false);
Poco::SharedPtr<Poco::Net::InvalidCertificateHandler> invalidClientCertHandler = new Poco::Net::AcceptCertificateHandler(false);
Poco::Net::Context::Ptr sslClientContext = new Poco::Net::Context(Poco::Net::Context::CLIENT_USE, sslClientParams);
sslClientContext->disableProtocols(Poco::Net::Context::Protocols::PROTO_SSLV2 |
Poco::Net::Context::Protocols::PROTO_SSLV3 |
Poco::Net::Context::Protocols::PROTO_TLSV1);
Poco::Net::SSLManager::instance().initializeClient(consoleClientHandler, invalidClientCertHandler, sslClientContext);
#endif
#else
FilesystemEnabled = true;
#endif
}
bool StorageBase::allowedWopiHost(const std::string& host)
{
return WopiEnabled && WopiHosts.match(host);
}
#if !MOBILEAPP
bool isLocalhost(const std::string& targetHost)
{
std::string targetAddress;
try
{
targetAddress = Poco::Net::DNS::resolveOne(targetHost).toString();
}
catch (const Poco::Exception& exc)
{
LOG_WRN("Poco::Net::DNS::resolveOne(\"" << targetHost << "\") failed: " << exc.displayText());
try
{
targetAddress = Poco::Net::IPAddress(targetHost).toString();
}
catch (const Poco::Exception& exc1)
{
LOG_WRN("Poco::Net::IPAddress(\"" << targetHost << "\") failed: " << exc1.displayText());
}
}
Poco::Net::NetworkInterface::NetworkInterfaceList list = Poco::Net::NetworkInterface::list(true,true);
for (auto& netif : list)
{
std::string address = netif.address().toString();
address = address.substr(0, address.find('%', 0));
if (address == targetAddress)
{
LOG_INF("WOPI host is on the same host as the WOPI client: \"" <<
targetAddress << "\". Connection is allowed.");
return true;
}
}
LOG_INF("WOPI host is not on the same host as the WOPI client: \"" <<
targetAddress << "\". Connection is not allowed.");
return false;
}
#endif
std::unique_ptr<StorageBase> StorageBase::create(const Poco::URI& uri, const std::string& jailRoot,
const std::string& jailPath, bool takeOwnership)
{
// FIXME: By the time this gets called we have already sent to the client three
// 'statusindicator:' messages: 'find', 'connect' and 'ready'. We should ideally do the checks
// here much earlier. Also, using exceptions is lame and makes understanding the code harder,
// but that is just my personal preference.
std::unique_ptr<StorageBase> storage;
if (UnitWSD::get().createStorage(uri, jailRoot, jailPath, storage))
{
LOG_INF("Storage create hooked.");
if (storage)
{
return storage;
}
}
else if (uri.isRelative() || uri.getScheme() == "file")
{
LOG_INF("Public URI [" << LOOLWSD::anonymizeUrl(uri.toString()) << "] is a file.");
#if ENABLE_DEBUG
if (std::getenv("FAKE_UNAUTHORIZED"))
{
LOG_FTL("Faking an UnauthorizedRequestException");
throw UnauthorizedRequestException("No acceptable WOPI hosts found matching the target host in config.");
}
#endif
if (FilesystemEnabled || takeOwnership)
{
return std::unique_ptr<StorageBase>(
new LocalStorage(uri, jailRoot, jailPath, takeOwnership));
}
LOG_ERR("Local Storage is disabled by default. Enable in the config file or on the command-line to enable.");
}
#if !MOBILEAPP
else if (WopiEnabled)
{
LOG_INF("Public URI [" << LOOLWSD::anonymizeUrl(uri.toString()) << "] considered WOPI.");
const auto& targetHost = uri.getHost();
bool allowed(false);
if (WopiHosts.match(targetHost) || isLocalhost(targetHost))
{
allowed = true;
}
if (!allowed)
{
// check if the IP address is in the list of allowed hosts
const auto hostAddresses(Poco::Net::DNS::resolve(targetHost));
for (auto &address : hostAddresses.addresses())
{
if (WopiHosts.match(address.toString()))
{
allowed = true;
break;
}
}
}
if (allowed)
return std::unique_ptr<StorageBase>(new WopiStorage(uri, jailRoot, jailPath));
LOG_ERR("No acceptable WOPI hosts found matching the target host [" << targetHost << "] in config.");
throw UnauthorizedRequestException("No acceptable WOPI hosts found matching the target host [" + targetHost + "] in config.");
}
#endif
throw BadRequestException("No Storage configured or invalid URI.");
}
std::atomic<unsigned> LocalStorage::LastLocalStorageId;
std::unique_ptr<LocalStorage::LocalFileInfo> LocalStorage::getLocalFileInfo()
{
const Poco::Path path = getUri().getPath();
LOG_DBG("Getting info for local uri [" << LOOLWSD::anonymizeUrl(getUri().toString())
<< "], path [" << LOOLWSD::anonymizeUrl(path.toString())
<< "].");
const FileUtil::Stat stat(path.toString());
const std::chrono::system_clock::time_point lastModified = stat.modifiedTimepoint();
const std::size_t size = stat.size();
setFileInfo(FileInfo(path.getFileName(), "LocalOwner", lastModified, size));
// Set automatic userid and username.
const std::string userId = std::to_string(LastLocalStorageId++);
return std::unique_ptr<LocalStorage::LocalFileInfo>(
new LocalFileInfo("LocalUser" + userId, "LocalUser#" + userId));
}
std::string LocalStorage::downloadStorageFileToLocal(const Authorization& /*auth*/,
const std::string& /*cookies*/,
LockContext& /*lockCtx*/,
const std::string& /*templateUri*/)
{
#if !MOBILEAPP
// /chroot/jailId/user/doc/childId/file.ext
const std::string filename = Poco::Path(getUri().getPath()).getFileName();
setRootFilePath(Poco::Path(getLocalRootPath(), filename).toString());
setRootFilePathAnonym(LOOLWSD::anonymizeUrl(getRootFilePath()));
LOG_INF("Public URI [" << LOOLWSD::anonymizeUrl(getUri().getPath()) <<
"] jailed to [" << getRootFilePathAnonym() << "].");
// Despite the talk about URIs it seems that _uri is actually just a pathname here
const std::string publicFilePath = getUri().getPath();
if (!Poco::File(publicFilePath).exists())
{
LOG_ERR("Local file URI [" << publicFilePath << "] invalid or doesn't exist.");
throw BadRequestException("Invalid URI: " + getUri().toString());
}
if (!FileUtil::checkDiskSpace(getRootFilePath()))
{
throw StorageSpaceLowException("Low disk space for " + getRootFilePathAnonym());
}
if (_isTemporaryFile)
{
try
{
// Neither link nor copy, just move, it's a temporary file.
Poco::File(publicFilePath).moveTo(getRootFilePath());
// Cleanup the directory after moving.
const std::string dir = Poco::Path(publicFilePath).parent().toString();
if (FileUtil::isEmptyDirectory(dir))
FileUtil::removeFile(dir);
}
catch (const Poco::Exception& exc)
{
LOG_WRN("Failed to move [" << LOOLWSD::anonymizeUrl(publicFilePath) << "] to ["
<< getRootFilePathAnonym() << "]: " << exc.displayText());
}
}
if (!FileUtil::Stat(getRootFilePath()).exists())
{
// Try to link.
LOG_INF("Linking " << LOOLWSD::anonymizeUrl(publicFilePath) << " to "
<< getRootFilePathAnonym());
if (!Poco::File(getRootFilePath()).exists()
&& link(publicFilePath.c_str(), getRootFilePath().c_str()) == -1)
{
// Failed
LOG_INF("link(\"" << LOOLWSD::anonymizeUrl(publicFilePath) << "\", \""
<< getRootFilePathAnonym() << "\") failed. Will copy. Linking error: "
<< Util::symbolicErrno(errno) << ' ' << strerror(errno));
}
}
try
{
// Fallback to copying.
if (!FileUtil::Stat(getRootFilePath()).exists())
{
FileUtil::copyFileTo(publicFilePath, getRootFilePath());
_isCopy = true;
}
}
catch (const Poco::Exception& exc)
{
LOG_ERR("copyTo(\"" << LOOLWSD::anonymizeUrl(publicFilePath) << "\", \""
<< getRootFilePathAnonym() << "\") failed: " << exc.displayText());
throw;
}
setLoaded(true);
// Now return the jailed path.
#ifndef KIT_IN_PROCESS
if (LOOLWSD::NoCapsForKit)
return getRootFilePath();
else
return Poco::Path(getJailPath(), filename).toString();
#else
return getRootFilePath();
#endif
#else // MOBILEAPP
// In the mobile app we use no jail
setRootFilePath(getUri().getPath());
setLoaded(true);
return getRootFilePath();
#endif
}
StorageBase::UploadResult LocalStorage::uploadLocalFileToStorage(
const Authorization& /*auth*/, const std::string& /*cookies*/, LockContext& /*lockCtx*/,
const std::string& /*saveAsPath*/, const std::string& /*saveAsFilename*/, bool /*isRename*/)
{
const std::string path = getUri().getPath();
try
{
LOG_TRC("Copying local file to local file storage (isCopy: " << _isCopy << ") for "
<< getRootFilePathAnonym());
// Copy the file back.
if (_isCopy && Poco::File(getRootFilePath()).exists())
FileUtil::copyFileTo(getRootFilePath(), path);
// update its fileinfo object. This is used later to check if someone else changed the
// document while we are/were editing it
getFileInfo().setModifiedTime(FileUtil::Stat(path).modifiedTimepoint());
LOG_TRC("New FileInfo modified time in storage " << getFileInfo().getModifiedTime());
}
catch (const Poco::Exception& exc)
{
LOG_ERR("copyTo(\"" << getRootFilePathAnonym() << "\", \"" << LOOLWSD::anonymizeUrl(path)
<< "\") failed: " << exc.displayText());
return StorageBase::UploadResult::Result::FAILED;
}
return StorageBase::UploadResult::Result::OK;
}
#if !MOBILEAPP
Poco::Net::HTTPClientSession* StorageBase::getHTTPClientSession(const Poco::URI& uri)
{
bool useSSL = false;
if (SSLAsScheme)
{
// the WOPI URI itself should control whether we use SSL or not
// for whether we verify vs. certificates, cf. above
useSSL = uri.getScheme() != "http";
}
else
{
// We decoupled the Wopi communication from client communication because
// the Wopi communication must have an independent policy.
// So, we will use here only Storage settings.
useSSL = SSLEnabled || LOOLWSD::isSSLTermination();
}
// We decoupled the Wopi communication from client communication because
// the Wopi communication must have an independent policy.
// So, we will use here only Storage settings.
Poco::Net::HTTPClientSession* session = useSSL
? new Poco::Net::HTTPSClientSession(uri.getHost(), uri.getPort(),
Poco::Net::SSLManager::instance().defaultClientContext())
: new Poco::Net::HTTPClientSession(uri.getHost(), uri.getPort());
// Set the timeout to the configured value.
static int timeoutSec = LOOLWSD::getConfigValue<int>("net.connection_timeout_secs", 30);
session->setTimeout(Poco::Timespan(timeoutSec, 0));
return session;
}
namespace
{
static void addStorageDebugCookie(Poco::Net::HTTPRequest& request)
{
(void) request;
#if ENABLE_DEBUG
if (std::getenv("LOOL_STORAGE_COOKIE"))
{
Poco::Net::NameValueCollection nvcCookies;
StringVector cookieTokens = Util::tokenize(std::string(std::getenv("LOOL_STORAGE_COOKIE")), ':');
if (cookieTokens.size() == 2)
{
nvcCookies.add(cookieTokens[0], cookieTokens[1]);
request.setCookies(nvcCookies);
LOG_TRC("Added storage debug cookie [" << cookieTokens[0] << '=' << cookieTokens[1] << "].");
}
}
#endif
}
static void addStorageReuseCookie(Poco::Net::HTTPRequest& request, const std::string& reuseStorageCookies)
{
if (!reuseStorageCookies.empty())
{
Poco::Net::NameValueCollection nvcCookies;
request.getCookies(nvcCookies); // Preserve existing cookies.
StringVector cookies = Util::tokenize(reuseStorageCookies, ':');
LOG_TRC("Parsing reuse cookies to set in Wopi request ["
<< reuseStorageCookies << "], found " << cookies.size() << " cookies.");
for (auto cookie : cookies)
{
StringVector cookieTokens = Util::tokenize(cookies.getParam(cookie), '=');
if (cookieTokens.size() == 2)
{
nvcCookies.add(cookieTokens[0], cookieTokens[1]);
LOG_DBG("Added storage reuse cookie [" << cookieTokens[0] << '=' << cookieTokens[1] << "].");
}
}
request.setCookies(nvcCookies);
}
}
// access_token must be decoded
void addWopiProof(Poco::Net::HTTPRequest& request, const Poco::URI& uri,
const std::string& access_token)
{
assert(!uri.isRelative());
for (const auto& header : GetProofHeaders(access_token, uri.toString()))
request.set(header.first, header.second);
}
std::map<std::string, std::string> GetQueryParams(const Poco::URI& uri)
{
std::map<std::string, std::string> result;
for (const auto& param : uri.getQueryParameters())
result.emplace(param);
return result;
}
} // anonymous namespace
#endif // !MOBILEAPP
void LockContext::initSupportsLocks()
{
#if MOBILEAPP
_supportsLocks = false;
#else
if (_supportsLocks)
return;
// first time token setup
_supportsLocks = true;
_lockToken = "lool-lock" + Util::rng::getHexString(8);
#endif
}
bool LockContext::needsRefresh(const std::chrono::steady_clock::time_point &now) const
{
static int refreshSeconds = LOOLWSD::getConfigValue<int>("storage.wopi.locking.refresh", 900);
return _supportsLocks && _isLocked && refreshSeconds > 0 &&
std::chrono::duration_cast<std::chrono::seconds>
(now - _lastLockTime).count() >= refreshSeconds;
}
void LockContext::dumpState(std::ostream& os) const
{
if (!_supportsLocks)
return;
os << " lock:"
"\n locked: " << _isLocked;
os << "\n token: '" << _lockToken;
os << "\n last locked: " << Util::getSteadyClockAsString(_lastLockTime) << '\n';
}
#if !MOBILEAPP
void WopiStorage::initHttpRequest(Poco::Net::HTTPRequest& request, const Poco::URI& uri,
const Authorization& auth, const std::string& cookies) const
{
request.set("User-Agent", WOPI_AGENT_STRING);
auth.authorizeRequest(request);
addStorageDebugCookie(request);
// TODO: Avoid repeated parsing.
std::map<std::string, std::string> params = GetQueryParams(uri);
addWopiProof(request, uri, params["access_token"]);
if (_reuseCookies)
addStorageReuseCookie(request, cookies);
// Helps wrt. debugging cluster cases from the logs
request.set("X-LOOL-WOPI-ServerId", Util::getProcessIdentifier());
}
std::unique_ptr<WopiStorage::WOPIFileInfo> WopiStorage::getWOPIFileInfo(const Authorization& auth,
const std::string& cookies,
LockContext& lockCtx)
{
// update the access_token to the one matching to the session
Poco::URI uriObject(getUri());
auth.authorizeURI(uriObject);
const std::string uriAnonym = LOOLWSD::anonymizeUrl(uriObject.toString());
LOG_DBG("Getting info for wopi uri [" << uriAnonym << "].");
std::string wopiResponse;
std::chrono::duration<double> callDuration(0);
try
{
Poco::Net::HTTPRequest request(Poco::Net::HTTPRequest::HTTP_GET,
uriObject.getPathAndQuery(),
Poco::Net::HTTPMessage::HTTP_1_1);
initHttpRequest(request, uriObject, auth, cookies);
const auto startTime = std::chrono::steady_clock::now();
std::unique_ptr<Poco::Net::HTTPClientSession> psession(getHTTPClientSession(uriObject));
Log::StreamLogger logger = Log::trace();
if (logger.enabled())
{
logger << "WOPI::CheckFileInfo request header for URI [" << uriAnonym << "]:\n";
for (const auto& pair : request)
{
logger << '\t' << pair.first << ": " << pair.second << " / ";
}
LOG_END(logger, true);
}
psession->sendRequest(request);
Poco::Net::HTTPResponse response;
std::istream& rs = psession->receiveResponse(response);
callDuration = (std::chrono::steady_clock::now() - startTime);
Log::StreamLogger logRes = Log::trace();
if (logRes.enabled())
{
logRes << "WOPI::CheckFileInfo response header for URI [" << uriAnonym
<< "]: " << response.getStatus() << '\n';
for (const auto& pair : response)
{
logRes << '\t' << pair.first << ": " << pair.second << " / ";
}
LOG_END(logRes, true);
}
if (response.getStatus() != Poco::Net::HTTPResponse::HTTP_OK)
{
LOG_ERR("WOPI::CheckFileInfo failed with " << response.getStatus() << ' ' << response.getReason());
throw StorageConnectionException("WOPI::CheckFileInfo failed");
}
Poco::StreamCopier::copyToString(rs, wopiResponse);
}
catch (const Poco::Exception& pexc)
{
LOG_ERR("Cannot get file info from WOPI storage uri [" << uriAnonym << "]. Error: " <<
pexc.displayText() << (pexc.nested() ? " (" + pexc.nested()->displayText() + ')' : ""));
throw;
}
catch (const BadRequestException& exc)
{
LOG_ERR("Cannot get file info from WOPI storage uri [" << uriAnonym << "]. Error: " << exc.what());
}
Poco::JSON::Object::Ptr object;
if (JsonUtil::parseJSON(wopiResponse, object))
{
if (LOOLWSD::AnonymizeUserData)
LOG_DBG("WOPI::CheckFileInfo (" << callDuration.count() * 1000. << " ms): anonymizing...");
else
LOG_DBG("WOPI::CheckFileInfo (" << callDuration.count() * 1000. << " ms): " << wopiResponse);
std::size_t size = 0;
std::string filename, ownerId, lastModifiedTime;
JsonUtil::findJSONValue(object, "Size", size);
JsonUtil::findJSONValue(object, "OwnerId", ownerId);
JsonUtil::findJSONValue(object, "BaseFileName", filename);
JsonUtil::findJSONValue(object, "LastModifiedTime", lastModifiedTime);
const std::chrono::system_clock::time_point modifiedTime = Util::iso8601ToTimestamp(lastModifiedTime, "LastModifiedTime");
FileInfo fileInfo = FileInfo({filename, ownerId, modifiedTime, size});
setFileInfo(fileInfo);
if (LOOLWSD::AnonymizeUserData)
Util::mapAnonymized(Util::getFilenameFromURL(filename), Util::getFilenameFromURL(getUri().toString()));
auto wopiInfo = std::unique_ptr<WopiStorage::WOPIFileInfo>(new WOPIFileInfo(fileInfo, callDuration, object));
if (wopiInfo->getSupportsLocks())
lockCtx.initSupportsLocks();
return wopiInfo;
}
else
{
if (LOOLWSD::AnonymizeUserData)
wopiResponse = "obfuscated";
LOG_ERR("WOPI::CheckFileInfo (" << callDuration.count() * 1000. <<
" ms) failed or no valid JSON payload returned. Access denied. "
"Original response: [" << wopiResponse << "].");
throw UnauthorizedRequestException("Access denied. WOPI::CheckFileInfo failed on: " + uriAnonym);
}
}
void WopiStorage::WOPIFileInfo::init()
{
_userCanWrite = false;
_enableOwnerTermination = false;
_hidePrintOption = false;
_hideSaveOption = false;
_hideExportOption = false;
_disablePrint = false;
_disableExport = false;
_disableCopy = false;
_disableInactiveMessages = false;
_downloadAsPostMessage = false;
_userCanNotWriteRelative = true;
_enableInsertRemoteImage = false;
_enableShare = false;
_supportsLocks = false;
_supportsRename = false;
_userCanRename = false;
_hideUserList = "false";
_disableChangeTrackingRecord = WOPIFileInfo::TriState::Unset;
_disableChangeTrackingShow = WOPIFileInfo::TriState::Unset;
_hideChangeTrackingControls = WOPIFileInfo::TriState::Unset;
}
WopiStorage::WOPIFileInfo::WOPIFileInfo(const FileInfo &fileInfo,
std::chrono::duration<double> callDuration,
Poco::JSON::Object::Ptr &object)
{
init();
const std::string &filename = fileInfo.getFilename();
const std::string &ownerId = fileInfo.getOwnerId();
JsonUtil::findJSONValue(object, "UserId", _userId);
JsonUtil::findJSONValue(object, "UserFriendlyName", _username);
JsonUtil::findJSONValue(object, "TemplateSaveAs", _templateSaveAs);
JsonUtil::findJSONValue(object, "TemplateSource", _templateSource);
std::ostringstream wopiResponse;
// Anonymize key values.
if (LOOLWSD::AnonymizeUserData)
{
JsonUtil::findJSONValue(object, "ObfuscatedUserId", _obfuscatedUserId, false);
if (!_obfuscatedUserId.empty())
{
Util::mapAnonymized(ownerId, _obfuscatedUserId);
Util::mapAnonymized(_userId, _obfuscatedUserId);
Util::mapAnonymized(_username, _obfuscatedUserId);
}
Poco::JSON::Object::Ptr anonObject(object);
// Set anonymized version of the above fields before logging.
// Note: anonymization caches the result, so we don't need to store here.
if (LOOLWSD::AnonymizeUserData)
anonObject->set("BaseFileName", LOOLWSD::anonymizeUrl(filename));
// If obfuscatedUserId is provided, then don't log the originals and use it.
if (LOOLWSD::AnonymizeUserData && _obfuscatedUserId.empty())
{
anonObject->set("OwnerId", LOOLWSD::anonymizeUsername(ownerId));
anonObject->set("UserId", LOOLWSD::anonymizeUsername(_userId));
anonObject->set("UserFriendlyName", LOOLWSD::anonymizeUsername(_username));
}
anonObject->stringify(wopiResponse);
}
else
object->stringify(wopiResponse);
LOG_DBG("WOPI::CheckFileInfo (" << callDuration.count() * 1000. << " ms): " << wopiResponse.str());
JsonUtil::findJSONValue(object, "UserExtraInfo", _userExtraInfo);
JsonUtil::findJSONValue(object, "WatermarkText", _watermarkText);
JsonUtil::findJSONValue(object, "UserCanWrite", _userCanWrite);
JsonUtil::findJSONValue(object, "PostMessageOrigin", _postMessageOrigin);
JsonUtil::findJSONValue(object, "HidePrintOption", _hidePrintOption);
JsonUtil::findJSONValue(object, "HideSaveOption", _hideSaveOption);
JsonUtil::findJSONValue(object, "HideExportOption", _hideExportOption);
JsonUtil::findJSONValue(object, "EnableOwnerTermination", _enableOwnerTermination);
JsonUtil::findJSONValue(object, "DisablePrint", _disablePrint);
JsonUtil::findJSONValue(object, "DisableExport", _disableExport);
JsonUtil::findJSONValue(object, "DisableCopy", _disableCopy);
JsonUtil::findJSONValue(object, "DisableInactiveMessages", _disableInactiveMessages);
JsonUtil::findJSONValue(object, "DownloadAsPostMessage", _downloadAsPostMessage);
JsonUtil::findJSONValue(object, "UserCanNotWriteRelative", _userCanNotWriteRelative);
JsonUtil::findJSONValue(object, "EnableInsertRemoteImage", _enableInsertRemoteImage);
JsonUtil::findJSONValue(object, "EnableShare", _enableShare);
JsonUtil::findJSONValue(object, "HideUserList", _hideUserList);
JsonUtil::findJSONValue(object, "SupportsLocks", _supportsLocks);
JsonUtil::findJSONValue(object, "SupportsRename", _supportsRename);
JsonUtil::findJSONValue(object, "UserCanRename", _userCanRename);
JsonUtil::findJSONValue(object, "BreadcrumbDocName", _breadcrumbDocName);
bool booleanFlag = false;
if (JsonUtil::findJSONValue(object, "DisableChangeTrackingRecord", booleanFlag))
_disableChangeTrackingRecord = (booleanFlag ? WOPIFileInfo::TriState::True : WOPIFileInfo::TriState::False);
if (JsonUtil::findJSONValue(object, "DisableChangeTrackingShow", booleanFlag))
_disableChangeTrackingShow = (booleanFlag ? WOPIFileInfo::TriState::True : WOPIFileInfo::TriState::False);
if (JsonUtil::findJSONValue(object, "HideChangeTrackingControls", booleanFlag))
_hideChangeTrackingControls = (booleanFlag ? WOPIFileInfo::TriState::True : WOPIFileInfo::TriState::False);
std::string overrideWatermarks = LOOLWSD::getConfigValue<std::string>("watermark.text", "");
if (!overrideWatermarks.empty())
_watermarkText = overrideWatermarks;
}
bool WopiStorage::updateLockState(const Authorization& auth, const std::string& cookies,
LockContext& lockCtx, bool lock)
{
lockCtx._lockFailureReason.clear();
if (!lockCtx._supportsLocks)
return true;
Poco::URI uriObject(getUri());
auth.authorizeURI(uriObject);
Poco::URI uriObjectAnonym(getUri());
uriObjectAnonym.setPath(LOOLWSD::anonymizeUrl(uriObjectAnonym.getPath()));
const std::string uriAnonym = uriObjectAnonym.toString();
const std::string wopiLog(lock ? "WOPI::Lock" : "WOPI::Unlock");
LOG_DBG(wopiLog << " requesting: " << uriAnonym);
try
{
std::unique_ptr<Poco::Net::HTTPClientSession> psession(getHTTPClientSession(uriObject));
Poco::Net::HTTPRequest request(Poco::Net::HTTPRequest::HTTP_POST,
uriObject.getPathAndQuery(),
Poco::Net::HTTPMessage::HTTP_1_1);
initHttpRequest(request, uriObject, auth, cookies);
request.set("X-WOPI-Override", lock ? "LOCK" : "UNLOCK");
request.set("X-WOPI-Lock", lockCtx._lockToken);
if (!getExtendedData().empty())
request.set("X-LOOL-WOPI-ExtendedData", getExtendedData());
// IIS requires content-length for POST requests: see https://forums.iis.net/t/1119456.aspx
request.setContentLength(0);
psession->sendRequest(request);
Poco::Net::HTTPResponse response;
std::istream& rs = psession->receiveResponse(response);
std::ostringstream oss;
Poco::StreamCopier::copyStream(rs, oss);
std::string responseString = oss.str();
LOG_INF(wopiLog << " response: " << responseString <<
" status " << response.getStatus());
if (response.getStatus() == Poco::Net::HTTPResponse::HTTP_OK)
{
lockCtx._isLocked = lock;
lockCtx._lastLockTime = std::chrono::steady_clock::now();
return true;
}
else
{
std::string sMoreInfo = response.get("X-WOPI-LockFailureReason", "");
if (!sMoreInfo.empty())
{
lockCtx._lockFailureReason = sMoreInfo;
sMoreInfo = ", failure reason: \"" + sMoreInfo + "\"";
}
LOG_WRN("Un-successful " << wopiLog << " with status " << response.getStatus() <<
sMoreInfo << " and response: " << responseString);
}
}
catch (const Poco::Exception& pexc)
{
LOG_ERR("Cannot " << wopiLog << " uri [" << uriAnonym << "]. Error: " <<
pexc.displayText() << (pexc.nested() ? " (" + pexc.nested()->displayText() + ')' : ""));
}
catch (const BadRequestException& exc)
{
LOG_ERR("Cannot " << wopiLog << " uri [" << uriAnonym << "]. Error: " << exc.what());
}
return false;
}
/// uri format: http://server/<...>/wopi*/files/<id>/content
std::string WopiStorage::downloadStorageFileToLocal(const Authorization& auth,
const std::string& cookies,
LockContext& /*lockCtx*/,
const std::string& templateUri)
{
// WOPI URI to download files ends in '/contents'.
// Add it here to get the payload instead of file info.
Poco::URI uriObject(getUri());
uriObject.setPath(uriObject.getPath() + "/contents");
auth.authorizeURI(uriObject);
Poco::URI uriObjectAnonym(getUri());
uriObjectAnonym.setPath(LOOLWSD::anonymizeUrl(uriObjectAnonym.getPath()) + "/contents");
const std::string uriAnonym = uriObjectAnonym.toString();
if (!templateUri.empty())
{
// template are created in kit process, so just obtain a reference
setRootFilePath(Poco::Path(getLocalRootPath(), getFileInfo().getFilename()).toString());
setRootFilePathAnonym(LOOLWSD::anonymizeUrl(getRootFilePath()));
LOG_INF("Template reference " << getRootFilePathAnonym());
setLoaded(true);
return Poco::Path(getJailPath(), getFileInfo().getFilename()).toString();
}
LOG_DBG("Wopi requesting: " << uriAnonym);
const auto startTime = std::chrono::steady_clock::now();
try
{
std::unique_ptr<Poco::Net::HTTPClientSession> psession(getHTTPClientSession(uriObject));
Poco::Net::HTTPRequest request(Poco::Net::HTTPRequest::HTTP_GET,
uriObject.getPathAndQuery(),
Poco::Net::HTTPMessage::HTTP_1_1);
initHttpRequest(request, uriObject, auth, cookies);
psession->sendRequest(request);
Poco::Net::HTTPResponse response;
std::istream& rs = psession->receiveResponse(response);
const std::chrono::duration<double> diff = (std::chrono::steady_clock::now() - startTime);
_wopiLoadDuration += diff;
Log::StreamLogger logger = Log::trace();
if (logger.enabled())
{
logger << "WOPI::GetFile header for URI [" << uriAnonym << "]:\n";
for (const auto& pair : response)
{
logger << '\t' << pair.first << ": " << pair.second << " / ";
}
LOG_END(logger, true);
}
if (response.getStatus() != Poco::Net::HTTPResponse::HTTP_OK)
{
std::ostringstream oss;
Poco::StreamCopier::copyStream(rs, oss);
std::string responseString = oss.str();
LOG_ERR("WOPI::GetFile failed with " << response.getStatus() << ' ' << responseString);
throw StorageConnectionException("WOPI::GetFile failed: " + responseString);
}
else // Successful
{
setRootFilePath(Poco::Path(getLocalRootPath(), getFileInfo().getFilename()).toString());
setRootFilePathAnonym(LOOLWSD::anonymizeUrl(getRootFilePath()));
std::ofstream ofs(getRootFilePath());
std::copy(std::istreambuf_iterator<char>(rs),
std::istreambuf_iterator<char>(),
std::ostreambuf_iterator<char>(ofs));
ofs.close();
const FileUtil::Stat fileStat(getRootFilePath());
const std::size_t filesize = (fileStat.good() ? fileStat.size() : 0);
LOG_INF("WOPI::GetFile downloaded " << filesize << " bytes from [" <<
uriAnonym << "] -> " << getRootFilePathAnonym() << " in " << diff.count() << 's');
setLoaded(true);
// Now return the jailed path.
if (LOOLWSD::NoCapsForKit)
return getRootFilePath();
else
return Poco::Path(getJailPath(), getFileInfo().getFilename()).toString();
}
}
catch (const Poco::Exception& pexc)
{
LOG_ERR("Cannot download document from WOPI storage uri [" + uriAnonym + "]. Error: "
<< pexc.displayText()
<< (pexc.nested() ? " (" + pexc.nested()->displayText() + ')' : ""));
throw;
}
catch (const BadRequestException& exc)
{
LOG_ERR("Cannot download document from WOPI storage uri [" + uriAnonym + "]. Error: "
<< exc.what());
}
return std::string();
}
StorageBase::UploadResult
WopiStorage::uploadLocalFileToStorage(const Authorization& auth, const std::string& cookies,
LockContext& lockCtx, const std::string& saveAsPath,
const std::string& saveAsFilename, const bool isRename)
{
// TODO: Check if this URI has write permission (canWrite = true)
const bool isSaveAs = !saveAsPath.empty() && !saveAsFilename.empty();
const std::string filePath(isSaveAs ? saveAsPath : getRootFilePath());
const std::string filePathAnonym = LOOLWSD::anonymizeUrl(filePath);
const FileUtil::Stat fileStat(filePath);
if (!fileStat.good())
{