mirror of
https://github.com/LibreOffice/online.git
synced 2025-08-20 23:24:34 +00:00
b59d160a08
The app is unimaginatively called "Mobile" for now. Runs but crashes pretty quickly after loading the document by the LO core. Will need some heavy changes to get a ClientSession object created in there, too, to handle the (emulated) WebSocket messages from the JavaScript. It would then handle some of these messages itself, and forwards some to the ChildSession, which in this case is in the same process. Now the messsages from the JavaScript go to a ChildSession, which is wrong. As the assertion says, "Tile traffic should go through the DocumentBroker-LoKit WS"
693 lines
19 KiB
C++
693 lines
19 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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#ifndef INCLUDED_UTIL_HPP
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#define INCLUDED_UTIL_HPP
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#include <cassert>
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#include <cerrno>
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#include <cstddef>
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#include <atomic>
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#include <functional>
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#include <memory>
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#include <mutex>
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#include <set>
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#include <sstream>
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#include <string>
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#include <memory.h>
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#ifndef __linux
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#include <thread>
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#endif
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#include <Poco/File.h>
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#include <Poco/Path.h>
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#include <Poco/Process.h>
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#include <Poco/RegularExpression.h>
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#define LOK_USE_UNSTABLE_API
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#include <LibreOfficeKit/LibreOfficeKitEnums.h>
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namespace Util
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{
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namespace rng
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{
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void reseed();
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unsigned getNext();
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/// Generate an array of random characters.
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std::vector<char> getBytes(const size_t length);
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/// Generates a random string suitable for
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/// file/directory names.
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std::string getFilename(const size_t length);
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}
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/// Create randomized temporary directory
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std::string createRandomTmpDir();
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#ifndef MOBILEAPP
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/// Get number of threads in this process or -1 on error
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int getProcessThreadCount();
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/// Spawn a process if stdInput is non-NULL it contains a writable descriptor
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/// to send data to the child.
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int spawnProcess(const std::string &cmd, const std::vector<std::string> &args,
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int *stdInput = nullptr);
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#endif
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/// Hex to unsigned char
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bool dataFromHexString(const std::string& hexString, std::vector<unsigned char>& data);
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/// Encode an integral ID into a string, with padding support.
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std::string encodeId(const unsigned number, const int padding = 5);
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/// Decode an integral ID from a string.
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unsigned decodeId(const std::string& str);
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bool windowingAvailable();
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#if !defined(BUILDING_TESTS) && !defined(KIT_IN_PROCESS) && !defined(MOBILEAPP)
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/// Send a message to all clients.
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void alertAllUsers(const std::string& msg);
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/// Send a 'error:' message with the specified cmd and kind parameters to all connected
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/// clients. This function can be called either in loolwsd or loolkit processes, even if only
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/// loolwsd obviously has contact with the actual clients; in loolkit it will be forwarded to
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/// loolwsd for redistribution. (This function must be implemented separately in each program
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/// that uses it, it is not in Util.cpp.)
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void alertAllUsers(const std::string& cmd, const std::string& kind);
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#else
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/// No-op implementation in the test programs
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inline void alertAllUsers(const std::string&)
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{
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}
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/// No-op implementation in the test programs
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inline void alertAllUsers(const std::string&, const std::string&)
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{
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}
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#endif
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/// Assert that a lock is already taken.
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template <typename T>
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void assertIsLocked(const T& lock)
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{
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#ifdef NDEBUG
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(void) lock;
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#else
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assert(lock.owns_lock());
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#endif
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}
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inline void assertIsLocked(std::mutex& mtx)
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{
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#ifdef NDEBUG
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(void) mtx;
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#else
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assert(!mtx.try_lock());
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#endif
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}
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#ifndef MOBILEAPP
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/// Print given number of bytes in human-understandable form (KB,MB, etc.)
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std::string getHumanizedBytes(unsigned long nBytes);
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/// Returns the total physical memory (in kB) available in the system
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size_t getTotalSystemMemoryKb();
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/// Returns the process PSS in KB (works only when we have perms for /proc/pid/smaps).
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size_t getMemoryUsagePSS(const Poco::Process::PID pid);
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/// Returns the process RSS in KB.
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size_t getMemoryUsageRSS(const Poco::Process::PID pid);
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/// Returns the RSS and PSS of the current process in KB.
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/// Example: "procmemstats: pid=123 rss=12400 pss=566"
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std::string getMemoryStats(FILE* file);
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size_t getCpuUsage(const Poco::Process::PID pid);
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size_t getStatFromPid(const Poco::Process::PID pid, int ind);
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#endif
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std::string replace(std::string s, const std::string& a, const std::string& b);
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std::string formatLinesForLog(const std::string& s);
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void setThreadName(const std::string& s);
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const char *getThreadName();
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#ifdef __linux
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pid_t getThreadId();
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#else
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std::thread::id getThreadId();
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#endif
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/// Get version information
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void getVersionInfo(std::string& version, std::string& hash);
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/// Return a string that is unique across processes and calls.
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std::string UniqueId();
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// Extract all json entries into a map.
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std::map<std::string, std::string> JsonToMap(const std::string& jsonString);
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/// Dump a lineof data as hex
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inline std::string stringifyHexLine(
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const std::vector<char> &buffer,
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unsigned int offset,
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const unsigned int width = 32)
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{
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char scratch[64];
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std::stringstream os;
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for (unsigned int i = 0; i < width; i++)
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{
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if (i && (i % 8) == 0)
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os << " ";
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if ((offset + i) < buffer.size())
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sprintf (scratch, "%.2x ", (unsigned char)buffer[offset+i]);
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else
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sprintf (scratch, " ");
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os << scratch;
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}
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os << " | ";
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for (unsigned int i = 0; i < width; i++)
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{
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if ((offset + i) < buffer.size() && ::isprint(buffer[offset+i]))
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sprintf (scratch, "%c", buffer[offset+i]);
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else
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sprintf (scratch, ".");
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os << scratch;
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}
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return os.str();
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}
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/// Dump data as hex and chars to stream
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inline void dumpHex (std::ostream &os, const char *legend, const char *prefix,
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const std::vector<char> &buffer, bool skipDup = true,
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const unsigned int width = 32)
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{
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unsigned int j;
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char scratch[64];
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int skip = 0;
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std::string lastLine;
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os << legend;
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for (j = 0; j < buffer.size() + width - 1; j += width)
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{
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sprintf (scratch, "%s0x%.4x ", prefix, j);
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os << scratch;
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std::string line = stringifyHexLine(buffer, j, width);
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if (skipDup && lastLine == line)
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skip++;
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else {
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if (skip > 0)
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{
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os << "... dup " << skip - 1 << "...";
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skip = 0;
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}
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else
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os << line;
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}
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lastLine.swap(line);
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os << "\n";
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}
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os.flush();
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}
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/// Trim spaces from the left. Just spaces.
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inline std::string& ltrim(std::string& s)
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{
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const size_t pos = s.find_first_not_of(' ');
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if (pos != std::string::npos)
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{
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s = s.substr(pos);
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}
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return s;
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}
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/// Trim spaces from the left and copy. Just spaces.
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inline std::string ltrimmed(const std::string& s)
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{
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const size_t pos = s.find_first_not_of(' ');
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if (pos != std::string::npos)
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{
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return s.substr(pos);
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}
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return s;
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}
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/// Trim spaces from both left and right. Just spaces.
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inline std::string& trim(std::string& s)
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{
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const size_t first = s.find_first_not_of(' ');
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const size_t last = s.find_last_not_of(' ');
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if (first != std::string::npos)
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{
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if (last != std::string::npos)
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{
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s = s.substr(first, last + 1 - first);
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}
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else
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{
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s = s.substr(first);
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}
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}
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else
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{
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if (last != std::string::npos)
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{
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s = s.substr(0, last + 1);
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}
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else
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{
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s.clear();
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}
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}
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return s;
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}
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/// Trim spaces from both left and right and copy. Just spaces.
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inline std::string trimmed(const std::string& s)
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{
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const size_t first = s.find_first_not_of(' ');
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const size_t last = s.find_last_not_of(' ');
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if (first != std::string::npos)
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{
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if (last != std::string::npos)
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{
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return s.substr(first, last + 1 - first);
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}
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return s.substr(first);
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}
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if (last != std::string::npos)
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{
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return s.substr(0, last + 1);
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}
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return std::string();
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}
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/// Trim spaces from left and right. Just spaces.
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inline std::string trimmed(const char* s)
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{
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return trimmed(std::string(s));
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}
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inline bool startsWith(const std::string& s, const std::string& t)
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{
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return s.length() >= t.length() && memcmp(s.c_str(), t.c_str(), t.length()) == 0;
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}
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/// Return the symbolic name for an errno value, or in decimal if not handled here.
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inline std::string symbolicErrno(int e)
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{
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// Errnos from <asm-generic/errno-base.h> and <asm-generic/errno.h> on Linux.
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switch (e)
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{
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case EPERM: return "EPERM";
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case ENOENT: return "ENOENT";
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case ESRCH: return "ESRCH";
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case EINTR: return "EINTR";
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case EIO: return "EIO";
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case ENXIO: return "ENXIO";
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case E2BIG: return "E2BIG";
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case ENOEXEC: return "ENOEXEC";
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case EBADF: return "EBADF";
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case ECHILD: return "ECHILD";
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case EAGAIN: return "EAGAIN";
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case ENOMEM: return "ENOMEM";
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case EACCES: return "EACCES";
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case EFAULT: return "EFAULT";
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case ENOTBLK: return "ENOTBLK";
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case EBUSY: return "EBUSY";
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case EEXIST: return "EEXIST";
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case EXDEV: return "EXDEV";
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case ENODEV: return "ENODEV";
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case ENOTDIR: return "ENOTDIR";
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case EISDIR: return "EISDIR";
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case EINVAL: return "EINVAL";
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case ENFILE: return "ENFILE";
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case EMFILE: return "EMFILE";
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case ENOTTY: return "ENOTTY";
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case ETXTBSY: return "ETXTBSY";
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case EFBIG: return "EFBIG";
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case ENOSPC: return "ENOSPC";
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case ESPIPE: return "ESPIPE";
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case EROFS: return "EROFS";
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case EMLINK: return "EMLINK";
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case EPIPE: return "EPIPE";
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case EDOM: return "EDOM";
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case ERANGE: return "ERANGE";
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case EDEADLK: return "EDEADLK";
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case ENAMETOOLONG: return "ENAMETOOLONG";
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case ENOLCK: return "ENOLCK";
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case ENOSYS: return "ENOSYS";
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case ENOTEMPTY: return "ENOTEMPTY";
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case ELOOP: return "ELOOP";
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case ENOMSG: return "ENOMSG";
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case EIDRM: return "EIDRM";
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#ifdef ECHRNG
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case ECHRNG: return "ECHRNG";
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#endif
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#ifdef EL2NSYNC
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case EL2NSYNC: return "EL2NSYNC";
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#endif
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#ifdef EL3HLT
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case EL3HLT: return "EL3HLT";
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#endif
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#ifdef EL3RST
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case EL3RST: return "EL3RST";
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#endif
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#ifdef ELNRNG
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case ELNRNG: return "ELNRNG";
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#endif
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#ifdef EUNATCH
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case EUNATCH: return "EUNATCH";
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#endif
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#ifdef ENOCSI
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case ENOCSI: return "ENOCSI";
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#endif
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#ifdef EL2HLT
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case EL2HLT: return "EL2HLT";
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#endif
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#ifdef EBADE
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case EBADE: return "EBADE";
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#endif
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#ifdef EBADR
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case EBADR: return "EBADR";
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#endif
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#ifdef EXFULL
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case EXFULL: return "EXFULL";
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#endif
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#ifdef ENOANO
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case ENOANO: return "ENOANO";
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#endif
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#ifdef EBADRQC
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case EBADRQC: return "EBADRQC";
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#endif
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#ifdef EBADSLT
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case EBADSLT: return "EBADSLT";
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#endif
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#ifdef EBFONT
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case EBFONT: return "EBFONT";
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#endif
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case ENOSTR: return "ENOSTR";
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case ENODATA: return "ENODATA";
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case ETIME: return "ETIME";
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case ENOSR: return "ENOSR";
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#ifdef ENONET
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case ENONET: return "ENONET";
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#endif
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#ifdef ENOPKG
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case ENOPKG: return "ENOPKG";
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#endif
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case EREMOTE: return "EREMOTE";
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case ENOLINK: return "ENOLINK";
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#ifdef EADV
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case EADV: return "EADV";
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#endif
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#ifdef ESRMNT
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case ESRMNT: return "ESRMNT";
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#endif
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#ifdef ECOMM
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case ECOMM: return "ECOMM";
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#endif
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case EPROTO: return "EPROTO";
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case EMULTIHOP: return "EMULTIHOP";
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#ifdef EDOTDOT
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case EDOTDOT: return "EDOTDOT";
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#endif
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case EBADMSG: return "EBADMSG";
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case EOVERFLOW: return "EOVERFLOW";
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#ifdef ENOTUNIQ
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case ENOTUNIQ: return "ENOTUNIQ";
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#endif
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#ifdef EBADFD
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case EBADFD: return "EBADFD";
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#endif
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#ifdef EREMCHG
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case EREMCHG: return "EREMCHG";
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#endif
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#ifdef ELIBACC
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case ELIBACC: return "ELIBACC";
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#endif
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#ifdef ELIBBAD
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case ELIBBAD: return "ELIBBAD";
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#endif
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#ifdef ELIBSCN
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case ELIBSCN: return "ELIBSCN";
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#endif
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#ifdef ELIBMAX
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case ELIBMAX: return "ELIBMAX";
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#endif
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#ifdef ELIBEXEC
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case ELIBEXEC: return "ELIBEXEC";
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#endif
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case EILSEQ: return "EILSEQ";
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#ifdef ERESTART
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case ERESTART: return "ERESTART";
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#endif
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#ifdef ESTRPIPE
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case ESTRPIPE: return "ESTRPIPE";
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#endif
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case EUSERS: return "EUSERS";
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case ENOTSOCK: return "ENOTSOCK";
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case EDESTADDRREQ: return "EDESTADDRREQ";
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case EMSGSIZE: return "EMSGSIZE";
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case EPROTOTYPE: return "EPROTOTYPE";
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case ENOPROTOOPT: return "ENOPROTOOPT";
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case EPROTONOSUPPORT: return "EPROTONOSUPPORT";
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case ESOCKTNOSUPPORT: return "ESOCKTNOSUPPORT";
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case EOPNOTSUPP: return "EOPNOTSUPP";
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case EPFNOSUPPORT: return "EPFNOSUPPORT";
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case EAFNOSUPPORT: return "EAFNOSUPPORT";
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case EADDRINUSE: return "EADDRINUSE";
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case EADDRNOTAVAIL: return "EADDRNOTAVAIL";
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case ENETDOWN: return "ENETDOWN";
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case ENETUNREACH: return "ENETUNREACH";
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case ENETRESET: return "ENETRESET";
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case ECONNABORTED: return "ECONNABORTED";
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case ECONNRESET: return "ECONNRESET";
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case ENOBUFS: return "ENOBUFS";
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case EISCONN: return "EISCONN";
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case ENOTCONN: return "ENOTCONN";
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case ESHUTDOWN: return "ESHUTDOWN";
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case ETOOMANYREFS: return "ETOOMANYREFS";
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case ETIMEDOUT: return "ETIMEDOUT";
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case ECONNREFUSED: return "ECONNREFUSED";
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case EHOSTDOWN: return "EHOSTDOWN";
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case EHOSTUNREACH: return "EHOSTUNREACH";
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case EALREADY: return "EALREADY";
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case EINPROGRESS: return "EINPROGRESS";
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case ESTALE: return "ESTALE";
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#ifdef EUCLEAN
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case EUCLEAN: return "EUCLEAN";
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#endif
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#ifdef ENOTNAM
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case ENOTNAM: return "ENOTNAM";
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#endif
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#ifdef ENAVAIL
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case ENAVAIL: return "ENAVAIL";
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#endif
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#ifdef EISNAM
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case EISNAM: return "EISNAM";
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#endif
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#ifdef EREMOTEIO
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case EREMOTEIO: return "EREMOTEIO";
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#endif
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case EDQUOT: return "EDQUOT";
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#ifdef ENOMEDIUM
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case ENOMEDIUM: return "ENOMEDIUM";
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#endif
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#ifdef EMEDIUMTYPE
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case EMEDIUMTYPE: return "EMEDIUMTYPE";
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#endif
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case ECANCELED: return "ECANCELED";
|
|
#ifdef ENOKEY
|
|
case ENOKEY: return "ENOKEY";
|
|
#endif
|
|
#ifdef EKEYEXPIRED
|
|
case EKEYEXPIRED: return "EKEYEXPIRED";
|
|
#endif
|
|
#ifdef EKEYREVOKED
|
|
case EKEYREVOKED: return "EKEYREVOKED";
|
|
#endif
|
|
#ifdef EKEYREJECTED
|
|
case EKEYREJECTED: return "EKEYREJECTED";
|
|
#endif
|
|
case EOWNERDEAD: return "EOWNERDEAD";
|
|
case ENOTRECOVERABLE: return "ENOTRECOVERABLE";
|
|
#ifdef ERFKILL
|
|
case ERFKILL: return "ERFKILL";
|
|
#endif
|
|
#ifdef EHWPOISON
|
|
case EHWPOISON: return "EHWPOISON";
|
|
#endif
|
|
default: return std::to_string(e);
|
|
}
|
|
}
|
|
|
|
/// Check for the URI scheme validity.
|
|
/// For now just a basic sanity check, can be extended if necessary.
|
|
bool isValidURIScheme(const std::string& scheme);
|
|
|
|
/// Check for the URI host validity.
|
|
/// For now just a basic sanity check, can be extended if necessary.
|
|
bool isValidURIHost(const std::string& host);
|
|
|
|
/// Given one or more patterns to allow, and one or more to deny,
|
|
/// the match member will return true if, and only if, the subject
|
|
/// matches the allowed list, but not the deny.
|
|
/// By default, everything is denied.
|
|
class RegexListMatcher
|
|
{
|
|
public:
|
|
RegexListMatcher() :
|
|
_allowByDefault(false)
|
|
{
|
|
}
|
|
|
|
RegexListMatcher(const bool allowByDefault) :
|
|
_allowByDefault(allowByDefault)
|
|
{
|
|
}
|
|
|
|
RegexListMatcher(std::initializer_list<std::string> allowed) :
|
|
_allowByDefault(false),
|
|
_allowed(allowed)
|
|
{
|
|
}
|
|
|
|
RegexListMatcher(std::initializer_list<std::string> allowed,
|
|
std::initializer_list<std::string> denied) :
|
|
_allowByDefault(false),
|
|
_allowed(allowed),
|
|
_denied(denied)
|
|
{
|
|
}
|
|
|
|
RegexListMatcher(const bool allowByDefault,
|
|
std::initializer_list<std::string> denied) :
|
|
_allowByDefault(allowByDefault),
|
|
_denied(denied)
|
|
{
|
|
}
|
|
|
|
void allow(const std::string& pattern) { _allowed.insert(pattern); }
|
|
void deny(const std::string& pattern)
|
|
{
|
|
_allowed.erase(pattern);
|
|
_denied.insert(pattern);
|
|
}
|
|
|
|
void clear()
|
|
{
|
|
_allowed.clear();
|
|
_denied.clear();
|
|
}
|
|
|
|
bool match(const std::string& subject) const
|
|
{
|
|
return (_allowByDefault || match(_allowed, subject)) && !match(_denied, subject);
|
|
}
|
|
|
|
private:
|
|
static bool match(const std::set<std::string>& set, const std::string& subject)
|
|
{
|
|
if (set.find(subject) != set.end())
|
|
{
|
|
return true;
|
|
}
|
|
|
|
// Not a perfect match, try regex.
|
|
for (const auto& value : set)
|
|
{
|
|
try
|
|
{
|
|
// Not performance critical to warrant caching.
|
|
Poco::RegularExpression re(value, Poco::RegularExpression::RE_CASELESS);
|
|
Poco::RegularExpression::Match reMatch;
|
|
|
|
// Must be a full match.
|
|
if (re.match(subject, reMatch) && reMatch.offset == 0 && reMatch.length == subject.size())
|
|
{
|
|
return true;
|
|
}
|
|
}
|
|
catch (const std::exception& exc)
|
|
{
|
|
// Nothing to do; skip.
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
private:
|
|
const bool _allowByDefault;
|
|
std::set<std::string> _allowed;
|
|
std::set<std::string> _denied;
|
|
};
|
|
|
|
/// A logical constant that is allowed to initialize
|
|
/// exactly once and checks usage before initialization.
|
|
template <typename T>
|
|
class RuntimeConstant
|
|
{
|
|
T _value;
|
|
std::atomic<bool> _initialized;
|
|
|
|
public:
|
|
RuntimeConstant()
|
|
: _value()
|
|
, _initialized(false)
|
|
{
|
|
}
|
|
|
|
/// Use a compile-time const instead.
|
|
RuntimeConstant(const T& value) = delete;
|
|
|
|
const T& get()
|
|
{
|
|
if (_initialized)
|
|
{
|
|
return _value;
|
|
}
|
|
|
|
throw std::runtime_error("RuntimeConstant instance read before being initialized.");
|
|
}
|
|
|
|
void set(const T& value)
|
|
{
|
|
assert(!_initialized);
|
|
|
|
_initialized = true;
|
|
_value = value;
|
|
}
|
|
};
|
|
} // end namespace Util
|
|
|
|
#endif
|
|
|
|
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|