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/** |
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* This file is part of the CernVM File System. |
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*/ |
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#include "helper_log.h" |
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#include <errno.h> |
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#include <fcntl.h> |
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#include <syslog.h> |
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#include <unistd.h> |
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#include <cassert> |
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#include <cstdarg> |
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#include <cstdio> |
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#include <cstdlib> |
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#include <cstring> |
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using namespace std; // NOLINT |
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namespace { |
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int fd_debug = -1; |
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FILE *file_debug = NULL; |
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int syslog_facility = LOG_USER; |
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int syslog_level = LOG_NOTICE; |
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char *syslog_prefix = NULL; |
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} |
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void SetLogAuthzDebug(const string &path) { |
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assert(!path.empty()); |
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if (fd_debug >= 0) |
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close(fd_debug); |
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int fd_debug = open(path.c_str(), O_WRONLY | O_APPEND | O_CREAT, 0600); |
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if (fd_debug < 0) { |
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syslog(LOG_USER | LOG_ERR, "could not open debug log %s (%d), abort", |
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path.c_str(), errno); |
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abort(); |
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} |
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file_debug = fdopen(fd_debug, "a"); |
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assert(file_debug != NULL); |
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} |
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void SetLogAuthzSyslogLevel(const int level) { |
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switch (level) { |
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case 1: |
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syslog_level = LOG_DEBUG; |
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break; |
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case 2: |
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syslog_level = LOG_INFO; |
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break; |
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case 3: |
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syslog_level = LOG_NOTICE; |
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break; |
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default: |
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syslog_level = LOG_NOTICE; |
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break; |
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} |
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} |
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void SetLogAuthzSyslogFacility(const int local_facility) { |
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switch (local_facility) { |
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case 0: |
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syslog_facility = LOG_LOCAL0; |
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break; |
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case 1: |
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syslog_facility = LOG_LOCAL1; |
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break; |
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case 2: |
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syslog_facility = LOG_LOCAL2; |
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break; |
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case 3: |
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syslog_facility = LOG_LOCAL3; |
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break; |
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case 4: |
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syslog_facility = LOG_LOCAL4; |
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break; |
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case 5: |
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syslog_facility = LOG_LOCAL5; |
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break; |
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case 6: |
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syslog_facility = LOG_LOCAL6; |
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break; |
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case 7: |
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syslog_facility = LOG_LOCAL7; |
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break; |
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default: |
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syslog_facility = LOG_USER; |
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} |
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} |
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void SetLogAuthzSyslogPrefix(const string &prefix) { |
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if (syslog_prefix) |
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free(syslog_prefix); |
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if (prefix == "") { |
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syslog_prefix = NULL; |
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} else { |
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unsigned len = prefix.length() + 1; |
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syslog_prefix = static_cast<char *>(malloc(len)); |
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assert(syslog_prefix != NULL); |
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syslog_prefix[len-1] = '\0'; |
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memcpy(syslog_prefix, &prefix[0], prefix.length()); |
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} |
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} |
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void LogAuthz(const int flags, const char *format, ...) { |
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char *msg = NULL; |
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va_list variadic_list; |
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va_start(variadic_list, format); |
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int retval = vasprintf(&msg, format, variadic_list); |
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assert(retval != -1); // else: out of memory |
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va_end(variadic_list); |
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if ((flags & kLogAuthzDebug) && (file_debug != NULL)) { |
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time_t rawtime; |
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time(&rawtime); |
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struct tm now; |
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localtime_r(&rawtime, &now); |
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fprintf(file_debug, "%s [%02d-%02d-%04d %02d:%02d:%02d %s]\n", msg, |
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(now.tm_mon)+1, now.tm_mday, (now.tm_year)+1900, now.tm_hour, |
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now.tm_min, now.tm_sec, now.tm_zone); |
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fflush(file_debug); |
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} |
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if (flags & (kLogAuthzSyslog | kLogAuthzSyslogWarn | kLogAuthzSyslogErr)) { |
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int level = syslog_level; |
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if (flags & kLogAuthzSyslogWarn) level = LOG_WARNING; |
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if (flags & kLogAuthzSyslogErr) level = LOG_ERR; |
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if (syslog_prefix) { |
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syslog(syslog_facility | level, "(%s) %s", syslog_prefix, msg); |
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} else { |
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syslog(syslog_facility | level, "%s", msg); |
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} |
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} |
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free(msg); |
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} |