util/yaz-url.c

   1 /* This file is part of the YAZ toolkit.
   2  * Copyright (C) Index Data
   3  * See the file LICENSE for details.
   4  */
   5
   6 #if HAVE_CONFIG_H
   7 #include <config.h>
   8 #endif
   9
  10 #include <string.h>
  11 #include <stdio.h>
  12 #include <stdlib.h>
  13 #include <yaz/url.h>
  14 #include <yaz/options.h>
  15 #include <yaz/log.h>
  16
  17 static void usage(void)
  18 {
  19     printf("yaz-icu [options] url ..\n");
  20     printf(" -H name:value       Sets HTTP header (repeat if necessary)\n");
  21     printf(" -m method           Sets HTTP method\n");
  22     printf(" -O fname            Writes HTTP content to file\n");
  23     printf(" -p fname            POSTs file at following url\n");
  24     printf(" -R num              Set maximum number of HTTP redirects\n");
  25     printf(" -u user/password    Sets Basic HTTP auth\n");
  26     printf(" -v                  Verbose\n");
  27     printf(" -x proxy            Sets HTTP proxy\n");
  28     exit(1);
  29 }
  30
  31 static char *get_file(const char *fname, size_t *len)
  32 {
  33     char *buf = 0;
  34     FILE *inf = fopen(fname, "rb");
  35     if (!inf)
  36     {
  37         yaz_log(YLOG_FATAL|YLOG_ERRNO, "Could not open %s", fname);
  38         exit(1);
  39     }
  40     if (fseek(inf, 0L, SEEK_END))
  41     {
  42         yaz_log(YLOG_FATAL|YLOG_ERRNO, "fseek of %s failed", fname);
  43         exit(1);
  44     }
  45     *len = ftell(inf);
  46     if (*len)  /* zero length not considered an error */
  47     {
  48         size_t r;
  49         buf = xmalloc(*len);
  50         fseek(inf, 0L, SEEK_SET);
  51         r = fread(buf, 1, *len, inf);
  52         if (r != *len)
  53         {
  54             yaz_log(YLOG_FATAL|YLOG_ERRNO, "short fread of %s", fname);
  55             exit(1);
  56         }
  57     }
  58     fclose(inf);
  59     return buf;
  60 }
  61
  62 int main(int argc, char **argv)
  63 {
  64     int ret;
  65     char *arg;
  66     yaz_url_t p = yaz_url_create();
  67     char *post_buf = 0;
  68     size_t post_len = 0;
  69     const char *method = "GET";
  70     Z_HTTP_Response *http_response;
  71     Z_HTTP_Header *http_headers = 0;
  72     ODR odr = odr_createmem(ODR_ENCODE);
  73     int exit_code = 0;
  74     int no_urls = 0;
  75     const char *outfname = 0;
  76
  77     while ((ret = options("h{help}H:m:O:p:R{max-redirs}:u:vx:", argv, argc, &arg))
  78            != YAZ_OPTIONS_EOF)
  79     {
  80         switch (ret)
  81         {
  82         case 'h':
  83             usage();
  84             break;
  85         case 'H':
  86             if (!strchr(arg, ':'))
  87             {
  88                 yaz_log(YLOG_FATAL, "bad header option (missing :) %s\n", arg);
  89                 exit_code = 1;
  90             }
  91             else
  92             {
  93                 char *cp = strchr(arg, ':');
  94                 char *name = odr_malloc(odr, 1 + cp - arg);
  95                 char *value = cp + 1;
  96                 memcpy(name, arg, cp - arg);
  97                 name[cp - arg] = '\0';
  98                 while (*value == ' ') /* skip space after = */
  99                     value++;
 100                 z_HTTP_header_add(odr, &http_headers, name, value);
 101             }
 102             break;
 103         case 'm':
 104             method = arg;
 105             break;
 106         case 'O':
 107             outfname = arg;
 108             break;
 109         case 'p':
 110             xfree(post_buf);
 111             post_buf = get_file(arg, &post_len);
 112             method = "POST";
 113             break;
 114         case 'R':
 115             yaz_url_set_max_redirects(p, atoi(arg));
 116             break;
 117         case 'u':
 118             if (strchr(arg, '/'))
 119             {
 120                 char *cp = strchr(arg, '/');
 121                 char *user = odr_malloc(odr, 1 + cp - arg);
 122                 char *password = cp + 1;
 123                 memcpy(user, arg, cp - arg);
 124                 user[cp - arg] = '\0';
 125                 z_HTTP_header_add_basic_auth(odr, &http_headers, user,
 126                                              password);
 127             }
 128             else
 129                 z_HTTP_header_add_basic_auth(odr, &http_headers, arg, 0);
 130             break;
 131         case 'v':
 132             yaz_url_set_verbose(p, 1);
 133             break;
 134         case 'x':
 135             yaz_url_set_proxy(p, arg);
 136             break;
 137         case 0:
 138             http_response = yaz_url_exec(p, arg, method, http_headers,
 139                                          post_buf, post_len);
 140             if (!http_response)
 141                 exit_code = 1;
 142             else
 143             {
 144                 FILE *outf = stdout;
 145                 if (outfname)
 146                 {
 147                     outf = fopen(outfname, "w");
 148                     if (!outf)
 149                     {
 150                         yaz_log(YLOG_FATAL|YLOG_ERRNO, "open %s", outfname);
 151                         exit(1);
 152                     }
 153                 }
 154                 fwrite(http_response->content_buf, 1,
 155                        http_response->content_len, outf);
 156                 if (outfname)
 157                     fclose(outf);
 158             }
 159             no_urls++;
 160             break;
 161         default:
 162             usage();
 163         }
 164     }
 165     xfree(post_buf);
 166     yaz_url_destroy(p);
 167     odr_destroy(odr);
 168     if (no_urls == 0)
 169         usage();
 170     exit(exit_code);
 171 }
 172
 173 /*
 174  * Local variables:
 175  * c-basic-offset: 4
 176  * c-file-style: "Stroustrup"
 177  * indent-tabs-mode: nil
 178  * End:
 179  * vim: shiftwidth=4 tabstop=8 expandtab
 180  */
 181