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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 <chrono>
#include <config.h>
#include "HttpRequest.hpp"
#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/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>
#include <common/TraceEvent.hpp>
#include <NetUtil.hpp>
#include <CommandControl.hpp>
#include "HostUtil.hpp"
#ifdef IOS
#include <ios.h>
#elif defined(__ANDROID__)
#include "androidapp.hpp"
#endif
bool StorageBase::FilesystemEnabled;
bool StorageBase::SSLAsScheme = true;
bool StorageBase::SSLEnabled = false;
#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 wopi.storage.host only when there is no storage.wopi.alias_groups entry in config
if (!app.config().has("storage.wopi.alias_groups"))
{
HostUtil::parseWopiHost(app.config());
}
#if ENABLE_FEATURE_LOCK
CommandControl::LockManager::parseLockedHost(app.config());
#endif
HostUtil::parseAliases(app.config());
#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 = COOLWSD::getConfigValue<bool>("storage.ssl.as_scheme", false);
// Fallback to ssl.enable if not set - for back compatibility & simplicity.
SSLEnabled = COOLWSD::getConfigValue<bool>(
"storage.ssl.enable", COOLWSD::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 = COOLWSD::getPathFromConfigWithFallback("storage.ssl.cert_file_path", "ssl.cert_file_path");
sslClientParams.privateKeyFile = COOLWSD::getPathFromConfigWithFallback("storage.ssl.key_file_path", "ssl.key_file_path");
sslClientParams.caLocation = COOLWSD::getPathFromConfigWithFallback("storage.ssl.ca_file_path", "ssl.ca_file_path");
sslClientParams.cipherList = COOLWSD::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);
// Initialize our client SSL context.
ssl::Manager::initializeClientContext(
sslClientParams.certificateFile, sslClientParams.privateKeyFile, sslClientParams.caLocation,
sslClientParams.cipherList,
sslClientParams.caLocation.empty() ? ssl::CertificateVerification::Disabled
: ssl::CertificateVerification::Required);
if (!ssl::Manager::isClientContextInitialized())
LOG_ERR("Failed to initialize Client SSL.");
else
LOG_INF("Initialized Client SSL.");
#endif
#else
FilesystemEnabled = true;
#endif
}
#if !MOBILEAPP
bool isLocalhost(const std::string& targetHost)
{
const std::string targetAddress = net::resolveHostAddress(targetHost);
if (net::isLocalhost(targetHost))
{
LOG_INF("WOPI host [" << targetHost << "] is on the same host as the WOPI client: \""
<< targetAddress << "\". Connection is allowed.");
return true;
}
LOG_INF("WOPI host [" << targetHost << "] is not on the same host as the WOPI client: \""
<< targetAddress << "\". Connection is not allowed.");
return false;
}
#endif
bool isTemplate(const std::string& filename)
{
std::vector<std::string> templateExtensions {".stw", ".ott", ".dot", ".dotx", ".dotm", ".otm", ".stc", ".ots", ".xltx", ".xltm", ".sti", ".otp", ".potx", ".potm", ".std", ".otg"};
for (auto & extension : templateExtensions)
if (Util::endsWith(filename, extension))
return true;
return false;
}
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 [" << COOLWSD::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 (HostUtil::isWopiEnabled())
{
LOG_INF("Public URI [" << COOLWSD::anonymizeUrl(uri.toString()) << "] considered WOPI.");
const auto& targetHost = uri.getHost();
bool allowed(false);
HostUtil::setFirstHost(uri);
if (HostUtil::allowedWopiHost(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 (HostUtil::allowedWopiHost(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 [" << COOLWSD::anonymizeUrl(getUri().toString()) << "], path [" << COOLWSD::anonymizeUrl(path.toString()) << "].");
const FileUtil::Stat stat(path.toString());
const std::chrono::system_clock::time_point lastModified = stat.modifiedTimepoint();
setFileInfo(FileInfo(path.getFileName(), "LocalOwner",
Util::getIso8601FracformatTime(lastModified)));
// Set automatic userid and username.
const std::string userId = std::to_string(LastLocalStorageId++);
std::string userNameString;
#if MOBILEAPP
if (user_name != nullptr)
userNameString = std::string(user_name);
#endif
if (userNameString.size() == 0)
userNameString = "LocalUser#" + userId;
return std::unique_ptr<LocalStorage::LocalFileInfo>(
new LocalFileInfo({"LocalUser" + userId, userNameString}));
}
std::string LocalStorage::downloadStorageFileToLocal(const Authorization& /*auth*/,
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(COOLWSD::anonymizeUrl(getRootFilePath()));
LOG_INF("Public URI [" << COOLWSD::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_ERR("Failed to move [" << COOLWSD::anonymizeUrl(publicFilePath) << "] to ["
<< getRootFilePathAnonym() << "]: " << exc.displayText());
}
}
if (!FileUtil::Stat(getRootFilePath()).exists())
{
// Try to link.
LOG_INF("Linking " << COOLWSD::anonymizeUrl(publicFilePath) << " to "
<< getRootFilePathAnonym());
if (!Poco::File(getRootFilePath()).exists()
&& link(publicFilePath.c_str(), getRootFilePath().c_str()) == -1)
{
// Failed
LOG_INF("link(\"" << COOLWSD::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(\"" << COOLWSD::anonymizeUrl(publicFilePath) << "\", \""
<< getRootFilePathAnonym() << "\") failed: " << exc.displayText());
throw;
}
setDownloaded(true);
// Now return the jailed path.
#ifndef KIT_IN_PROCESS
if (COOLWSD::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());
return getRootFilePath();
#endif
}
StorageBase::UploadResult
LocalStorage::uploadLocalFileToStorage(const Authorization& /*auth*/, 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(getRootFilePathUploading()).exists())
FileUtil::copyFileTo(getRootFilePathUploading(), path);
// update its fileinfo object. This is used later to check if someone else changed the
// document while we are/were editing it
getFileInfo().setLastModifiedTime(
Util::getIso8601FracformatTime(FileUtil::Stat(path).modifiedTimepoint()));
LOG_TRC("New FileInfo modified time in storage " << getFileInfo().getLastModifiedTime());
}
catch (const Poco::Exception& exc)
{
LOG_ERR("copyTo(\"" << getRootFilePathAnonym() << "\", \"" << COOLWSD::anonymizeUrl(path)
<< "\") failed: " << exc.displayText());
return UploadResult(UploadResult::Result::FAILED, "Internal error.");
}
return UploadResult(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 || COOLWSD::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 = COOLWSD::getConfigValue<int>("net.connection_timeout_secs", 30);
session->setTimeout(Poco::Timespan(timeoutSec, 0));
return session;
}
std::shared_ptr<http::Session> StorageBase::getHttpSession(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 || COOLWSD::isSSLTermination();
}
const auto protocol
= useSSL ? http::Session::Protocol::HttpSsl : http::Session::Protocol::HttpUnencrypted;
// Create the session.
auto httpSession = http::Session::create(uri.getHost(), protocol, uri.getPort());
static int timeoutSec = COOLWSD::getConfigValue<int>("net.connection_timeout_secs", 30);
httpSession->setTimeout(std::chrono::seconds(timeoutSec));
return httpSession;
}
namespace
{
static void addStorageDebugCookie(Poco::Net::HTTPRequest& request)
{
(void) request;
#if ENABLE_DEBUG
if (std::getenv("COOL_STORAGE_COOKIE"))
{
Poco::Net::NameValueCollection nvcCookies;
StringVector cookieTokens = StringVector::tokenize(std::string(std::getenv("COOL_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
}
// 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 = "cool-lock" + Util::rng::getHexString(8);
#endif
}
bool LockContext::needsRefresh(const std::chrono::steady_clock::time_point &now) const
{
static int refreshSeconds = COOLWSD::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 << "\n LockContext:";
os << "\n locked: " << _isLocked;
os << "\n token: " << _lockToken;
os << "\n last locked: " << Util::getSteadyClockAsString(_lastLockTime);
}
#if !MOBILEAPP
void WopiStorage::initHttpRequest(Poco::Net::HTTPRequest& request, const Poco::URI& uri,
const Authorization& auth) 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);
const auto it = params.find("access_token");
if (it != params.end())
addWopiProof(request, uri, it->second);
// Helps wrt. debugging cluster cases from the logs
request.set("X-COOL-WOPI-ServerId", Util::getProcessIdentifier());
}
http::Request WopiStorage::initHttpRequest(const Poco::URI& uri, const Authorization& auth) const
{
http::Request httpRequest(uri.getPathAndQuery());
//FIXME: Hack Hack Hack! Use own version.
Poco::Net::HTTPRequest request;
initHttpRequest(request, uri, auth);
// Copy the headers, including the cookies.
for (const auto& pair : request)
{
httpRequest.header().set(pair.first, pair.second);
}
return httpRequest;
}
std::unique_ptr<WopiStorage::WOPIFileInfo>
WopiStorage::getWOPIFileInfoForUri(Poco::URI uriObject, const Authorization& auth,
LockContext& lockCtx, unsigned redirectLimit)
{
ProfileZone profileZone("WopiStorage::getWOPIFileInfo", { {"url", _fileUrl} });
// update the access_token to the one matching to the session
auth.authorizeURI(uriObject);
const std::string uriAnonym = COOLWSD::anonymizeUrl(uriObject.toString());
LOG_DBG("Getting info for wopi uri [" << uriAnonym << "].");
std::string wopiResponse;
std::chrono::milliseconds callDurationMs;
try
{
std::shared_ptr<http::Session> httpSession = getHttpSession(uriObject);
http::Request httpRequest = initHttpRequest(uriObject, auth);
const auto startTime = std::chrono::steady_clock::now();
Log::StreamLogger logger = Log::trace();
if (logger.enabled())
{
logger << "WOPI::CheckFileInfo request header for URI [" << uriAnonym << "]:\n";
for (const auto& pair : httpRequest.header())
{
logger << '\t' << pair.first << ": " << pair.second << " / ";
}
LOG_END(logger);
}
const std::shared_ptr<const http::Response> httpResponse
= httpSession->syncRequest(httpRequest);
callDurationMs = std::chrono::duration_cast<std::chrono::milliseconds>(
std::chrono::steady_clock::now() - startTime);
if (httpResponse->statusLine().statusCode() == Poco::Net::HTTPResponse::HTTP_FOUND ||
httpResponse->statusLine().statusCode() == Poco::Net::HTTPResponse::HTTP_MOVED_PERMANENTLY ||
httpResponse->statusLine().statusCode() == Poco::Net::HTTPResponse::HTTP_TEMPORARY_REDIRECT ||
httpResponse->statusLine().statusCode() == Poco::Net::HTTPResponse::HTTP_PERMANENT_REDIRECT)
{
if (redirectLimit)
{
const std::string& location = httpResponse->get("Location");
LOG_TRC("WOPI::CheckFileInfo redirect to URI [" << COOLWSD::anonymizeUrl(location) << "]");
Poco::URI redirectUriObject(location);
setUri(redirectUriObject);
return getWOPIFileInfoForUri(redirectUriObject, auth, lockCtx, redirectLimit - 1);
}
else
{
LOG_WRN("WOPI::CheckFileInfo redirected too many times - URI [" << uriAnonym << "]");
}
}
// Note: we don't log the response if obfuscation is enabled, except for failures.
wopiResponse = httpResponse->getBody();
const bool failed
= (httpResponse->statusLine().statusCode() != Poco::Net::HTTPResponse::HTTP_OK);
Log::StreamLogger logRes = failed ? Log::error() : Log::trace();
if (logRes.enabled())
{
logRes << "WOPI::CheckFileInfo " << (failed ? "failed" : "returned") << " for URI ["
<< uriAnonym << "]: " << httpResponse->statusLine().statusCode() << ' '
<< httpResponse->statusLine().reasonPhrase() << ". Headers: ";
for (const auto& pair : httpResponse->header())
{
logRes << '\t' << pair.first << ": " << pair.second << " / ";
}
if (failed)
logRes << "\tBody: [" << wopiResponse << "]";
LOG_END(logRes);
}
if (failed)
{
if (httpResponse->statusLine().statusCode() == Poco::Net::HTTPResponse::HTTP_FORBIDDEN)
throw UnauthorizedRequestException(
"Access denied, 403. WOPI::CheckFileInfo failed on: " + uriAnonym);
throw StorageConnectionException("WOPI::CheckFileInfo failed: " + 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 (COOLWSD::AnonymizeUserData)
LOG_DBG("WOPI::CheckFileInfo (" << callDurationMs << "): anonymizing...");
else
LOG_DBG("WOPI::CheckFileInfo (" << callDurationMs << "): " << 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);
FileInfo fileInfo = FileInfo({filename, ownerId, lastModifiedTime});
setFileInfo(fileInfo);
if (COOLWSD::AnonymizeUserData)
Util::mapAnonymized(Util::getFilenameFromURL(filename), Util::getFilenameFromURL(getUri().toString()));
auto wopiInfo = Util::make_unique<WopiStorage::WOPIFileInfo>(fileInfo, callDurationMs, object, uriObject);
if (wopiInfo->getSupportsLocks())
lockCtx.initSupportsLocks();
// If FileUrl is set, we use it for GetFile.
_fileUrl = wopiInfo->getFileUrl();
return wopiInfo;
}
else
{
if (COOLWSD::AnonymizeUserData)
wopiResponse = "obfuscated";
LOG_ERR("WOPI::CheckFileInfo ("
<< callDurationMs
<< ") failed or no valid JSON payload returned. Access denied. Original response: ["
<< wopiResponse << "].");
throw UnauthorizedRequestException("Access denied. WOPI::CheckFileInfo failed on: " + uriAnonym);
}
}
std::unique_ptr<WopiStorage::WOPIFileInfo> WopiStorage::getWOPIFileInfo(const Authorization& auth,
LockContext& lockCtx)
{
Poco::URI uriObject(getUri());
return getWOPIFileInfoForUri(uriObject, auth, lockCtx, RedirectionLimit);
}
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::milliseconds callDurationMs,
Poco::JSON::Object::Ptr &object, Poco::URI &uriObject)
{
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);
// UserFriendlyName is used as the Author when loading the document.
// If it's missing, document loading fails. Since the UserFriendlyName
// field is optional in WOPI specs, it's often left out by integrators.
if (_username.empty())
{
_username = "UnknownUser"; // Default to something sensible yet friendly.
if (!_userId.empty())
_username += '_' + _userId;
LOG_ERR("WOPI::CheckFileInfo does not specify a valid UserFriendlyName for the current "
"user. Temporarily ["
<< _username << "] will be used until a valid name is specified.");
}
std::ostringstream wopiResponse;
// Anonymize key values.
if (COOLWSD::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 (COOLWSD::AnonymizeUserData)
anonObject->set("BaseFileName", COOLWSD::anonymizeUrl(filename));
// If obfuscatedUserId is provided, then don't log the originals and use it.
if (COOLWSD::AnonymizeUserData && _obfuscatedUserId.empty())
{
anonObject->set("OwnerId", COOLWSD::anonymizeUsername(ownerId));
anonObject->set("UserId", COOLWSD::anonymizeUsername(_userId));
anonObject->set("UserFriendlyName", COOLWSD::anonymizeUsername(_username));
}
anonObject->stringify(wopiResponse);
}
else
object->stringify(wopiResponse);
LOG_DBG("WOPI::CheckFileInfo (" << callDurationMs << "): " << 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);
JsonUtil::findJSONValue(object, "FileUrl", _fileUrl);
#if ENABLE_FEATURE_LOCK
bool isUserLocked = false;
JsonUtil::findJSONValue(object, "IsUserLocked", isUserLocked);
if (config::getBool("feature_lock.locked_hosts[@allow]", false))
{
bool isReadOnly = false;
isUserLocked = false;
CommandControl::LockManager::setUnlockLink(uriObject.getHost());
Poco::URI newUri(HostUtil::getNewLockedUri(uriObject));
const std::string host = newUri.getHost();
if (CommandControl::LockManager::hostExist(host))
{
isReadOnly = CommandControl::LockManager::isHostReadOnly(host);
isUserLocked = CommandControl::LockManager::isHostCommandDisabled(host);
}
else
{
LOG_INF("Could not find matching locked_host: " << host << ",applying fallback settings");
isReadOnly = config::getBool("feature_lock.locked_hosts.fallback[@read_only]", false);
isUserLocked =
config::getBool("feature_lock.locked_hosts.fallback[@disabled_commands]", false);
}
if (isReadOnly)
{
isUserLocked = true;
}
CommandControl::LockManager::setHostReadOnly(isReadOnly);
}
CommandControl::LockManager::setLockedUser(isUserLocked);
#else
(void)uriObject;
#endif
bool booleanFlag = false;
JsonUtil::findJSONValue(object, "IsUserRestricted", booleanFlag);
CommandControl::RestrictionManager::setRestrictedUser(booleanFlag);
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);
static const std::string overrideWatermarks
= COOLWSD::getConfigValue<std::string>("watermark.text", "");
if (!overrideWatermarks.empty())
_watermarkText = overrideWatermarks;
if (isTemplate(filename))
_disableExport = true;
}
bool WopiStorage::updateLockState(const Authorization& auth, 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(COOLWSD::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);
request.set("X-WOPI-Override", lock ? "LOCK" : "UNLOCK");
request.set("X-WOPI-Lock", lockCtx._lockToken);
if (!getExtendedData().empty())
{
request.set("X-COOL-WOPI-ExtendedData", getExtendedData());
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_ERR("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,
LockContext& /*lockCtx*/,
const std::string& templateUri)
{
ProfileZone profileZone("WopiStorage::downloadStorageFileToLocal", { {"url", _fileUrl} });