77f1c872b1
Previously, if log-level is not mentioned in configuration file and reload happens, the log level was not set to the default value NOTICE. Instead, the log level stayed the same. This commit fixes this bug.
305 lines
8.7 KiB
C++
305 lines
8.7 KiB
C++
/*
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* nghttp2 - HTTP/2 C Library
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*
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* Copyright (c) 2012 Tatsuhiro Tsujikawa
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef SHRPX_LOG_H
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#define SHRPX_LOG_H
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#include "shrpx.h"
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#include <sys/types.h>
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#include <memory>
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#include <vector>
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#include <chrono>
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#include "shrpx_config.h"
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#include "shrpx_log_config.h"
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#include "tls.h"
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#include "template.h"
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#include "util.h"
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using namespace nghttp2;
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#define ENABLE_LOG 1
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#define LOG_ENABLED(SEVERITY) (ENABLE_LOG && shrpx::Log::log_enabled(SEVERITY))
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#define LOG(SEVERITY) shrpx::Log(SEVERITY, __FILE__, __LINE__)
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// Listener log
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#define LLOG(SEVERITY, LISTEN) \
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(shrpx::Log(SEVERITY, __FILE__, __LINE__) << "[LISTEN:" << LISTEN << "] ")
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// Worker log
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#define WLOG(SEVERITY, WORKER) \
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(shrpx::Log(SEVERITY, __FILE__, __LINE__) << "[WORKER:" << WORKER << "] ")
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// ClientHandler log
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#define CLOG(SEVERITY, CLIENT_HANDLER) \
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(shrpx::Log(SEVERITY, __FILE__, __LINE__) \
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<< "[CLIENT_HANDLER:" << CLIENT_HANDLER << "] ")
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// Upstream log
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#define ULOG(SEVERITY, UPSTREAM) \
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(shrpx::Log(SEVERITY, __FILE__, __LINE__) << "[UPSTREAM:" << UPSTREAM \
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<< "]" \
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" ")
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// Downstream log
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#define DLOG(SEVERITY, DOWNSTREAM) \
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(shrpx::Log(SEVERITY, __FILE__, __LINE__) \
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<< "[DOWNSTREAM:" << DOWNSTREAM << "] ")
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// Downstream connection log
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#define DCLOG(SEVERITY, DCONN) \
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(shrpx::Log(SEVERITY, __FILE__, __LINE__) << "[DCONN:" << DCONN << "] ")
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// Downstream HTTP2 session log
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#define SSLOG(SEVERITY, HTTP2) \
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(shrpx::Log(SEVERITY, __FILE__, __LINE__) << "[DHTTP2:" << HTTP2 << "] ")
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// Memcached connection log
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#define MCLOG(SEVERITY, MCONN) \
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(shrpx::Log(SEVERITY, __FILE__, __LINE__) << "[MCONN:" << MCONN << "] ")
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namespace shrpx {
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class Downstream;
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struct DownstreamAddr;
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enum SeverityLevel { INFO, NOTICE, WARN, ERROR, FATAL };
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using LogBuffer = std::array<uint8_t, 4_k>;
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class Log {
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public:
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Log(int severity, const char *filename, int linenum);
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~Log();
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Log &operator<<(const std::string &s);
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Log &operator<<(const char *s);
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Log &operator<<(const StringRef &s);
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Log &operator<<(const ImmutableString &s);
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Log &operator<<(short n) { return *this << static_cast<long long>(n); }
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Log &operator<<(int n) { return *this << static_cast<long long>(n); }
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Log &operator<<(long n) { return *this << static_cast<long long>(n); }
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Log &operator<<(long long n);
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Log &operator<<(unsigned short n) {
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return *this << static_cast<unsigned long long>(n);
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}
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Log &operator<<(unsigned int n) {
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return *this << static_cast<unsigned long long>(n);
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}
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Log &operator<<(unsigned long n) {
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return *this << static_cast<unsigned long long>(n);
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}
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Log &operator<<(unsigned long long n);
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Log &operator<<(float n) { return *this << static_cast<double>(n); }
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Log &operator<<(double n);
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Log &operator<<(long double n);
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Log &operator<<(bool n);
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Log &operator<<(const void *p);
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template <typename T> Log &operator<<(const std::shared_ptr<T> &ptr) {
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return *this << ptr.get();
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}
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Log &operator<<(void (*func)(Log &log)) {
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func(*this);
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return *this;
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}
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template <typename InputIt> void write_seq(InputIt first, InputIt last) {
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if (full_) {
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return;
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}
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auto d = std::distance(first, last);
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auto n = std::min(wleft(), static_cast<size_t>(d));
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last_ = std::copy(first, first + n, last_);
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update_full();
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}
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template <typename T> void write_hex(T n) {
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if (full_) {
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return;
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}
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if (n == 0) {
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if (wleft() < 4 /* for "0x00" */) {
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full_ = true;
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return;
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}
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*last_++ = '0';
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*last_++ = 'x';
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*last_++ = '0';
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*last_++ = '0';
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update_full();
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return;
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}
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size_t nlen = 0;
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for (auto t = n; t; t >>= 8, ++nlen)
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;
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nlen *= 2;
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if (wleft() < 2 /* for "0x" */ + nlen) {
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full_ = true;
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return;
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}
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*last_++ = '0';
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*last_++ = 'x';
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last_ += nlen;
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update_full();
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auto p = last_ - 1;
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for (; n; n >>= 8) {
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uint8_t b = n & 0xff;
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*p-- = util::LOWER_XDIGITS[b & 0xf];
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*p-- = util::LOWER_XDIGITS[b >> 4];
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}
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}
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static void set_severity_level(int severity);
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// Returns the severity level by |name|. Returns -1 if |name| is
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// unknown.
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static int get_severity_level_by_name(const StringRef &name);
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static bool log_enabled(int severity) { return severity >= severity_thres_; }
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enum {
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fmt_dec = 0x00,
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fmt_hex = 0x01,
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};
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void set_flags(int flags) { flags_ = flags; }
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private:
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size_t rleft() { return last_ - begin_; }
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size_t wleft() { return end_ - last_; }
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void update_full() { full_ = last_ == end_; }
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LogBuffer &buf_;
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uint8_t *begin_;
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uint8_t *end_;
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uint8_t *last_;
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const char *filename_;
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uint32_t flags_;
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int severity_;
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int linenum_;
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bool full_;
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static int severity_thres_;
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};
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namespace log {
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void hex(Log &log);
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void dec(Log &log);
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} // namespace log
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#define TTY_HTTP_HD (log_config()->errorlog_tty ? "\033[1;34m" : "")
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#define TTY_RST (log_config()->errorlog_tty ? "\033[0m" : "")
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enum class LogFragmentType {
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NONE,
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LITERAL,
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REMOTE_ADDR,
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TIME_LOCAL,
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TIME_ISO8601,
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REQUEST,
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STATUS,
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BODY_BYTES_SENT,
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HTTP,
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AUTHORITY,
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REMOTE_PORT,
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SERVER_PORT,
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REQUEST_TIME,
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PID,
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ALPN,
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TLS_CIPHER,
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SSL_CIPHER = TLS_CIPHER,
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TLS_PROTOCOL,
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SSL_PROTOCOL = TLS_PROTOCOL,
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TLS_SESSION_ID,
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SSL_SESSION_ID = TLS_SESSION_ID,
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TLS_SESSION_REUSED,
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SSL_SESSION_REUSED = TLS_SESSION_REUSED,
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TLS_SNI,
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TLS_CLIENT_FINGERPRINT_SHA1,
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TLS_CLIENT_FINGERPRINT_SHA256,
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TLS_CLIENT_ISSUER_NAME,
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TLS_CLIENT_SERIAL,
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TLS_CLIENT_SUBJECT_NAME,
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BACKEND_HOST,
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BACKEND_PORT,
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};
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struct LogFragment {
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LogFragment(LogFragmentType type, StringRef value = StringRef::from_lit(""))
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: type(type), value(std::move(value)) {}
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LogFragmentType type;
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StringRef value;
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};
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struct LogSpec {
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Downstream *downstream;
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StringRef remote_addr;
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StringRef alpn;
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StringRef sni;
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SSL *ssl;
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std::chrono::high_resolution_clock::time_point request_end_time;
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StringRef remote_port;
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uint16_t server_port;
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pid_t pid;
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};
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void upstream_accesslog(const std::vector<LogFragment> &lf,
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const LogSpec &lgsp);
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int reopen_log_files(const LoggingConfig &loggingconf);
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// Logs message when process whose pid is |pid| and exist status is
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// |rstatus| exited. The |msg| is prepended to the log message.
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void log_chld(pid_t pid, int rstatus, const char *msg);
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void redirect_stderr_to_errorlog(const LoggingConfig &loggingconf);
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// Makes internal copy of stderr (and possibly stdout in the future),
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// which is then used as pointer to /dev/stderr or /proc/self/fd/2
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void store_original_fds();
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// Restores the original stderr that was stored with copy_original_fds
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// Used just before execv
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void restore_original_fds();
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// Closes |fd| which was returned by open_log_file (see below)
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// and sets it to -1. In the case that |fd| points to stdout or
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// stderr, or is -1, the descriptor is not closed (but still set to -1).
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void close_log_file(int &fd);
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// Opens |path| with O_APPEND enabled. If file does not exist, it is
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// created first. This function returns file descriptor referring the
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// opened file if it succeeds, or -1.
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int open_log_file(const char *path);
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} // namespace shrpx
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#endif // SHRPX_LOG_H
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