bicyclesonthemoon.info Git - ott/enhance/blob - bluenh-cgi.c

   1 /*
   2 bluenh-cgi.c
   3 Online interface for npb
   4 04.12.2022
   5
   6 Copyright (C) 2013, 2014, 2022  Balthasar Szczepański
   7
   8 This program is free software: you can redistribute it and/or modify
   9 it under the terms of the GNU Affero General Public License as
  10 published by the Free Software Foundation, either version 3 of the
  11 License, or (at your option) any later version.
  12
  13 This program is distributed in the hope that it will be useful,
  14 but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 GNU Affero General Public License for more details.
  17
  18 You should have received a copy of the GNU Affero General Public License
  19 along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20
  21 Requires cgilib (http://www.infodrom.org/projects/cgilib/)
  22 */
  23
  24 #include <stdio.h>
  25 #include <stdint.h>
  26 #include <unistd.h>
  27 #include <stdlib.h>
  28 #include <sys/wait.h>
  29 #include <stdint.h>
  30 #include <inttypes.h>
  31
  32 #include <cgi.h>
  33
  34 #include "online-core.h"
  35 #include "nh.h"
  36
  37 int bluenh (
  38         char *inpix, char *outpix,
  39         uint_fast8_t a, uint_fast8_t b, uint_fast8_t c,
  40         uint_fast8_t d, uint_fast8_t e, uint_fast8_t f
  41 );
  42
  43 int main (int argc, char *argv[])
  44 {
  45         s_cgi *cgi;
  46         char in_tmp[256];
  47         char out_tmp[256];
  48         char *in_path;
  49         char *t;
  50         uint_fast8_t a, b, c, d, e, f;
  51
  52         int r=0;
  53         int r1=0;
  54         int r2=0;
  55         int r3=0;
  56
  57         do {
  58                 make_tmp_path(in_tmp, 256, 0, "");
  59                 make_tmp_path(out_tmp, 256, 1, ".png");
  60
  61                 cgi=cgiInit();
  62
  63                 r = get_file(cgi,"inpix2", in_tmp, &in_path);
  64                 if (r)
  65                         r = get_file(cgi,"inpix", in_tmp, &in_path);
  66                 if (r)
  67                         break;
  68
  69                 t = cgiGetValue(cgi, "a");
  70                 if (t != NULL)
  71                         sscanf(t,"%"SCNuFAST8, &a);
  72                 else
  73                         a = 0;
  74
  75                 t = cgiGetValue(cgi, "b");
  76                 if (t != NULL)
  77                         sscanf(t,"%"SCNuFAST8, &b);
  78                 else
  79                         b = 0;
  80
  81                 t = cgiGetValue(cgi, "c");
  82                 if (t != NULL)
  83                         sscanf(t,"%"SCNuFAST8, &c);
  84                 else
  85                         c = 0;
  86
  87                 t = cgiGetValue(cgi, "d");
  88                 if (t != NULL)
  89                         sscanf(t,"%"SCNuFAST8, &d);
  90                 else
  91                         d = 0;
  92
  93                 t = cgiGetValue(cgi, "e");
  94                 if (t != NULL)
  95                         sscanf(t,"%"SCNuFAST8, &e);
  96                 else
  97                         e = 0;
  98
  99                 t = cgiGetValue(cgi, "f");
 100                 if (t != NULL)
 101                         sscanf(t,"%"SCNuFAST8, &f);
 102                 else
 103                         f = 0;
 104
 105                 r = bluenh(in_path, out_tmp, a, b, c, d, e, f);
 106                 if (r)
 107                         break;
 108
 109                 r1 = send_file(out_tmp, "image/png", 0);
 110         } while (0);
 111         if (r)
 112         {
 113                 r1 = send_data(nh, nh_size, "image/png", 500);
 114         }
 115         r2 = rm(in_tmp);
 116         r3 = rm(out_tmp);
 117         if (r)
 118                 return r;
 119         if (r1)
 120                 return r1;
 121         if (r2)
 122                 return r2;
 123         if (r3)
 124                 return r3;
 125         return 0;
 126 }
 127
 128 int bluenh (
 129         char *inpix, char *outpix,
 130         uint_fast8_t a, uint_fast8_t b, uint_fast8_t c,
 131         uint_fast8_t d, uint_fast8_t e, uint_fast8_t f
 132 )
 133 {
 134         char s_a[4];
 135         char s_b[4];
 136         char s_c[4];
 137         char s_d[4];
 138         char s_e[4];
 139         char s_f[4];
 140
 141         pid_t sub;
 142         int r;
 143
 144         snprintf(s_a, 4, "%"SCNuFAST8, a);
 145         snprintf(s_b, 4, "%"SCNuFAST8, b);
 146         snprintf(s_c, 4, "%"SCNuFAST8, c);
 147         snprintf(s_d, 4, "%"SCNuFAST8, d);
 148         snprintf(s_e, 4, "%"SCNuFAST8, e);
 149         snprintf(s_f, 4, "%"SCNuFAST8, f);
 150
 151         sub = fork();
 152         if (sub == 0)
 153         {
 154                 r = execl(
 155                         BLUENH_PATH, BLUENH_PATH,
 156                         inpix, outpix,
 157                         s_a, s_b, s_c,
 158                         s_d, s_e, s_f,
 159                         (char *)0
 160                 );
 161                 exit(r);
 162         }
 163         waitpid(sub, &r, 0);
 164         return r;
 165 }