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

   1 //  //  //Download images and
   2    //  // ENHANCE them!
   3   //  //
   4  //  //   Requires cgilib
   5 //  //  //line 146 of cgi.h
   6    //  // must be changed
   7   //  //  from "extern }"
   8  //  //   to "}"
   9 //  //  //
  10    //  // ~~bicyclesonthemoon
  11
  12 #include <cgi.h>
  13 #include <stdio.h>
  14 #include <stdlib.h>
  15 #include <unistd.h>
  16 #include <string.h>
  17 #include <sys/wait.h>
  18 #include <sys/stat.h>
  19
  20 #define WGET_PATH  "/usr/bin/wget"
  21 #define ENH_PATH   "./bluenh"
  22 #define ENH_PATH2  "./bluenh2"
  23 #define RM_PATH    "/bin/rm"
  24 #define LOG_PATH   "/eizm/log/bluenh/bluenh.log"
  25 #define USERAGENT  "Bluenhancement\x20(1190.bicyclesonthemoon.dnsd.info/bluenh/bluenh.htm)"
  26 #define MSTD_PATH  "/pro/bluenh/nh.png"
  27
  28 int main (int argc, char *argv[]);
  29 void mustard(int mustard);
  30
  31 FILE *pix;
  32
  33 char url[1024];
  34 char path[256];
  35 s_cgi *cgi;
  36 int t;
  37 pid_t sub;
  38
  39 int main (int argc, char *argv[])
  40 {
  41         unsigned char buf[1024];
  42         struct stat st;
  43         unsigned long p;
  44         unsigned short q;
  45         char **up;
  46         bool enh2;
  47
  48         cgi=cgiInit();
  49
  50         up=cgiGetFiles(cgi);
  51         if (up)
  52         {
  53                 sprintf(path,"%s",cgiGetFile(cgi,up[0])->tmpfile);
  54                 sprintf(url,"%s",cgiGetFile(cgi,up[0])->filename);
  55         }
  56         else
  57         {
  58                 sprintf(url,"%s",(cgiGetValue(cgi,"inpix")!=NULL)?(cgiGetValue(cgi,"inpix")):"");
  59                 sprintf(path,"/var/tmp/%lu",(unsigned long)getpid());
  60
  61                 //Why is  there no spawnl() in linux?
  62                 sub=fork();
  63                 if(sub==0)
  64                 {
  65                         t=execl(WGET_PATH,WGET_PATH,"-q","-t","2","-U",USERAGENT,"-O",path,url,(char *)0);
  66                         exit(t);
  67                 }
  68                 waitpid(sub,&t,0);
  69                 if(t)mustard(t);
  70         }
  71
  72         enh2=(cgiGetValue(cgi,"bluenh2")!=NULL);
  73         sub=fork();
  74         if(sub==0)
  75         {
  76                 t=execl(enh2?ENH_PATH2:ENH_PATH,enh2?ENH_PATH2:ENH_PATH,path,path,cgiGetValue(cgi,"a")!=NULL?cgiGetValue(cgi,"a"):"0",cgiGetValue(cgi,"b")!=NULL?cgiGetValue(cgi,"b"):"127",cgiGetValue(cgi,"c")!=NULL?cgiGetValue(cgi,"c"):"255",cgiGetValue(cgi,"d")!=NULL?cgiGetValue(cgi,"d"):"0",cgiGetValue(cgi,"e")!=NULL?cgiGetValue(cgi,"e"):"127",cgiGetValue(cgi,"f")!=NULL?cgiGetValue(cgi,"f"):"255","q",(char *)0);
  77                 exit(t);
  78         }
  79         waitpid(sub,&t,0);
  80         if(t)mustard(t);
  81
  82         pix=fopen(path,"rb");
  83         if(pix==NULL)
  84                 mustard(123);
  85         fstat(fileno(pix),&st);
  86         p=st.st_size/1024;
  87         q=st.st_size%1024;
  88
  89         printf("Content-Length: %lu\n",(unsigned long)(st.st_size));
  90         printf("Content-type: image/png\n\n");
  91         for(unsigned long i=0;i<p;++i)
  92         {
  93                 fread(buf,1,1024,pix);
  94                 fwrite(buf,1,1024,stdout);
  95         }
  96         if(q!=0)
  97         {
  98                 fread(buf,1,q,pix);
  99                 fwrite(buf,1,q,stdout);
 100         }
 101         fclose(pix);
 102         fflush(stdout);
 103         mustard(0);//no mustard
 104 }
 105
 106 void mustard(int mustard)
 107 {
 108         if(mustard)
 109         {
 110                 cgiRedirect(MSTD_PATH);
 111         }
 112         sub=fork();
 113         if(sub==0)
 114         {
 115                 t=execl(RM_PATH,RM_PATH,"-f",path,(char *)0);
 116                 exit(t);
 117         }
 118         waitpid(sub,&t,0);
 119         pix=fopen(LOG_PATH,"at");
 120         if(pix!=NULL)
 121         {
 122                 fprintf(pix,"%x %s\n",mustard,url);
 123                 fclose(pix);
 124         }
 125         exit(mustard);
 126 }