regex_pcre: pkg-config is not required by this module.

[user/henk/code/inspircd.git] / src / helperfuncs.cpp

diff --git a/src/helperfuncs.cpp b/src/helperfuncs.cpp
index 469c844be391b9b2c37f7934fe4463e1aed237b9..70ac2f0e6a9e7c281d23acbbf33b493d9452f3a1 100644 (file)
--- a/src/helperfuncs.cpp
+++ b/src/helperfuncs.cpp
@@ -7,6 +7,7 @@
  *   Copyright (C) 2008 Thomas Stagner <aquanight@inspircd.org>
  *   Copyright (C) 2006-2007 Oliver Lupton <oliverlupton@gmail.com>
  *   Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
+ *   Copyright (C) 2003-2019 Anope Team <team@anope.org>
  *
  * This file is part of InspIRCd.  InspIRCd is free software: you can
  * redistribute it and/or modify it under the terms of the GNU General Public
@@ -349,24 +350,43 @@ void InspIRCd::CheckRoot()
 #endif
 }
 
-/** Refactored by Brain, Jun 2009. Much faster with some clever O(1) array
- * lookups and pointer maths.
+/** A lookup table of values for multiplier characters used by
+ * InspIRCd::Duration(). In this lookup table, the indexes for
+ * the ascii values 'm' and 'M' have the value '60', the indexes
+ * for the ascii values 'D' and 'd' have a value of '86400', etc.
  */
-unsigned long InspIRCd::Duration(const std::string &str)
+static const unsigned int duration_multi[] =
 {
-       unsigned char multiplier = 0;
-       long total = 0;
-       long times = 1;
-       long subtotal = 0;
+       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+       0, 0, 0, 0, 86400, 0, 0, 0, 3600, 0, 0, 0, 0, 60, 0, 0,
+       0, 0, 0, 1, 0, 0, 0, 604800, 0, 31557600, 0, 0, 0, 0, 0, 0,
+       0, 0, 0, 0, 86400, 0, 0, 0, 3600, 0, 0, 0, 0, 60, 0, 0,
+       0, 0, 0, 1, 0, 0, 0, 604800, 0, 31557600, 0, 0, 0, 0, 0, 0,
+       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+};
+
+bool InspIRCd::Duration(const std::string& str, unsigned long& duration)
+{
+       unsigned long total = 0;
+       unsigned long subtotal = 0;
 
        /* Iterate each item in the string, looking for number or multiplier */
-       for (std::string::const_reverse_iterator i = str.rbegin(); i != str.rend(); ++i)
+       for (std::string::const_iterator i = str.begin(); i != str.end(); ++i)
        {
                /* Found a number, queue it onto the current number */
                if ((*i >= '0') && (*i <= '9'))
                {
-                       subtotal = subtotal + ((*i - '0') * times);
-                       times = times * 10;
+                       subtotal = (subtotal * 10) + (*i - '0');
                }
                else
                {
@@ -374,22 +394,70 @@ unsigned long InspIRCd::Duration(const std::string &str)
                         * it multiplies the built up number by, multiply the total
                         * and reset the built up number.
                         */
-                       if (subtotal)
-                               total += subtotal * duration_multi[multiplier];
+                       unsigned int multiplier = duration_multi[static_cast<unsigned char>(*i)];
+                       if (multiplier == 0)
+                               return false;
+
+                       total += subtotal * multiplier;
 
                        /* Next subtotal please */
                        subtotal = 0;
-                       multiplier = *i;
-                       times = 1;
                }
        }
-       if (multiplier)
+       /* Any trailing values built up are treated as raw seconds */
+       duration = total + subtotal;
+       return true;
+}
+
+unsigned long InspIRCd::Duration(const std::string& str)
+{
+       unsigned long out = 0;
+       InspIRCd::Duration(str, out);
+       return out;
+}
+
+bool InspIRCd::IsValidDuration(const std::string& duration)
+{
+       for (std::string::const_iterator i = duration.begin(); i != duration.end(); ++i)
        {
-               total += subtotal * duration_multi[multiplier];
-               subtotal = 0;
+               unsigned char c = *i;
+               if (((c >= '0') && (c <= '9')))
+                       continue;
+
+               if (!duration_multi[c])
+                       return false;
        }
-       /* Any trailing values built up are treated as raw seconds */
-       return total + subtotal;
+       return true;
+}
+
+std::string InspIRCd::DurationString(time_t duration)
+{
+       if (duration == 0)
+               return "0s";
+
+       time_t years = duration / 31449600;
+       time_t weeks = (duration / 604800) % 52;
+       time_t days = (duration / 86400) % 7;
+       time_t hours = (duration / 3600) % 24;
+       time_t minutes = (duration / 60) % 60;
+       time_t seconds = duration % 60;
+
+       std::string ret;
+
+       if (years)
+               ret = ConvToStr(years) + "y";
+       if (weeks)
+               ret += ConvToStr(weeks) + "w";
+       if (days)
+               ret += ConvToStr(days) + "d";
+       if (hours)
+               ret += ConvToStr(hours) + "h";
+       if (minutes)
+               ret += ConvToStr(minutes) + "m";
+       if (seconds)
+               ret += ConvToStr(seconds) + "s";
+
+       return ret;
 }
 
 std::string InspIRCd::Format(va_list& vaList, const char* formatString)