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

   1 /*
   2 npb-cgi.c
   3 Download images and add Newpixbots to them! (or Megans)
   4 05.12.2022
   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 "mpb.h"
  36 #include "mpb_503.h"
  37
  38
  39 int npb (
  40         char *inpix, char *outpix,
  41         uint_fast8_t remove_border, uint_fast32_t remove_border_width,
  42         uint_fast8_t new_border, uint_fast32_t new_border_width,
  43         uint_fast8_t external_border, uint_fast32_t external_border_width,
  44         uint_fast8_t corners, uint_fast8_t ong1, uint8_t t403
  45 );
  46
  47 int main (int argc, char *argv[])
  48 {
  49         s_cgi *cgi;
  50         char in_tmp[256];
  51         char out_tmp[256];
  52         char *in_path;
  53         char *t;
  54         uint_fast8_t remove_border, new_border, external_border, corners, ong1;
  55         uint_fast32_t remove_border_width, new_border_width, external_border_width;
  56         uint_fast8_t t403 = 0;
  57
  58         int r=0;
  59         int r1=0;
  60         int r2=0;
  61         int r3=0;
  62
  63         do {
  64                 make_tmp_path(in_tmp, 256, 0, "");
  65                 make_tmp_path(out_tmp, 256, 1, ".png");
  66
  67                 cgi=cgiInit();
  68
  69                 r = get_file(cgi,"inpix2", in_tmp, &in_path);
  70                 if (r)
  71                         r = get_file(cgi,"inpix", in_tmp, &in_path);
  72                 if (r)
  73                         break;
  74
  75                 remove_border   = (cgiGetValue(cgi, "r")!=NULL) ? 1 : 0;
  76                 external_border = (cgiGetValue(cgi, "e")!=NULL) ? 1 : 0;
  77                 new_border      = (cgiGetValue(cgi, "b")!=NULL) ? 1 : 0;
  78                 corners         = (cgiGetValue(cgi, "c")!=NULL) ? 1 : 0;
  79                 ong1            = (cgiGetValue(cgi, "o")!=NULL) ? 1 : 0;
  80                 t403            = (cgiGetValue(cgi, "4")!=NULL) ? 1 : 0;
  81
  82                 if (remove_border)
  83                 {
  84                         t = cgiGetValue(cgi, "rw");
  85                         if (t != NULL)
  86                                 sscanf(t,"%"SCNuFAST32, &remove_border_width);
  87                         else
  88                                 remove_border_width = 0;
  89                 }
  90
  91                 if (external_border)
  92                 {
  93                         t = cgiGetValue(cgi, "ew");
  94                         if (t != NULL)
  95                                 sscanf(t,"%"SCNuFAST32, &external_border_width);
  96                         else
  97                                 external_border_width = 0;
  98                 }
  99
 100                 if (new_border)
 101                 {
 102                         t = cgiGetValue(cgi, "bw");
 103                         if (t != NULL)
 104                                 sscanf(t,"%"SCNuFAST32, &new_border_width);
 105                         else
 106                                 new_border_width = 0;
 107                 }
 108
 109                 r = npb(
 110                         in_path, out_tmp,
 111                         remove_border, remove_border_width,
 112                         new_border, new_border_width,
 113                         external_border, external_border_width,
 114                         corners, ong1, t403
 115                 );
 116                 if (r)
 117                         break;
 118
 119                 r1 = send_file(out_tmp, "image/png", 0);
 120         } while (0);
 121         if (r)
 122         {
 123                 r1 = send_data(
 124                         t403 ? mpb_503 : mpb,
 125                         t403 ? mpb_503_size : mpb_size,
 126                         "image/png",
 127                         500
 128                 );
 129         }
 130         r2 = rm(in_tmp);
 131         r3 = rm(out_tmp);
 132         if (r)
 133                 return r;
 134         if (r1)
 135                 return r1;
 136         if (r2)
 137                 return r2;
 138         if (r3)
 139                 return r3;
 140         return 0;
 141 }
 142
 143 int npb (
 144         char *inpix, char *outpix,
 145         uint_fast8_t remove_border, uint_fast32_t remove_border_width,
 146         uint_fast8_t new_border, uint_fast32_t new_border_width,
 147         uint_fast8_t external_border, uint_fast32_t external_border_width,
 148         uint_fast8_t corners, uint_fast8_t ong1, uint8_t t403
 149 )
 150 {
 151         char s_rw[13] = "-0";
 152         char s_bw[13] = "-0";
 153         char s_ew[13] = "-0";
 154
 155         pid_t sub;
 156         int r;
 157
 158         if (remove_border)
 159                 snprintf(s_rw, 13, "-r%"PRIuFAST32, remove_border_width);
 160         if (new_border)
 161                 snprintf(s_bw, 13, "-b%"PRIuFAST32, new_border_width);
 162         if (external_border)
 163                 snprintf(s_ew, 13, "-e%"PRIuFAST32, external_border_width);
 164
 165         sub = fork();
 166         if (sub == 0)
 167         {
 168                 r = execl(
 169                         NPB_PATH, NPB_PATH,
 170                         s_rw, s_ew, s_bw,
 171                         corners ? "-c" : "-0",
 172                         ong1 ? "-o" : "-0",
 173                         t403 ? "-4" : "-0",
 174                         inpix, outpix,
 175                         (char *)0
 176                 );
 177                 exit(r);
 178         }
 179         waitpid(sub, &r, 0);
 180         return r;
 181 }