rb79-view-thread.c

   1 /*
   2  * Copyright (c) 2017, De Rais <derais@cock.li>
   3  *
   4  * Permission to use, copy, modify, and/or distribute this software for
   5  * any purpose with or without fee is hereby granted, provided that the
   6  * above copyright notice and this permission notice appear in all
   7  * copies.
   8  *
   9  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
  10  * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
  11  * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
  12  * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
  13  * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
  14  * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
  15  * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
  16  * PERFORMANCE OF THIS SOFTWARE.
  17  */
  18 #include <errno.h>
  19 #include <locale.h>
  20 #include <stdint.h>
  21 #include <stdio.h>
  22 #include <string.h>
  23 #include <unistd.h>
  24
  25 #include <sodium.h>
  26
  27 #include "macros.h"
  28 #include "rb79.h"
  29
  30 #include "config.h"
  31
  32 const char *program_name = "rb79-view-thread";
  33
  34 /* Options */
  35 static uint_fast8_t use_color = 1;
  36
  37 /* Show usage message, do not exit */
  38 void usage(void)
  39 {
  40         size_t len = strlen(program_name);
  41
  42         printf("Usage: %s -b board-name\n", program_name);
  43         printf("       %*s -t thread-id\n", (int) len, "");
  44         printf("       %*s [ -C ] # Do not use color\n", (int) len, "");
  45 }
  46
  47 /* Print out enough of a post to give the mod information */
  48 int print_post(struct prepared_post *p, FILE *f, uint_fast8_t is_op,
  49                uint_fast8_t is_summary, const char *board_name, uintmax_t
  50                total_posts_in_thread, uint_fast8_t hr_before)
  51 {
  52         char *time_str = util_iso8601_from_time_t(p->now);
  53         unsigned char out_hash[9] = { 0 };
  54
  55         UNUSED(is_summary);
  56         UNUSED(hr_before);
  57         UNUSED(board_name);
  58         UNUSED(total_posts_in_thread);
  59
  60         if (crypto_generichash(out_hash, 9, (const unsigned char *) p->ip,
  61                                p->ip_len, 0, 0)) {
  62                 PERROR_MESSAGE("crypto_generichash_init");
  63                 goto done;
  64         }
  65
  66         if (is_op) {
  67                 fprintf(f, "--------------------------------------\n");
  68         }
  69
  70         fprintf(f, " ");
  71
  72         if (use_color) {
  73                 fprintf(f, "\033[48;2;%d;%d;%dm  ", 0xff & out_hash[0], 0xff &
  74                         out_hash[1], 0xff & out_hash[2]);
  75                 fprintf(f, "\033[48;2;%d;%d;%dm  ", 0xff & out_hash[3], 0xff &
  76                         out_hash[4], 0xff & out_hash[5]);
  77                 fprintf(f, "\033[48;2;%d;%d;%dm  ", 0xff & out_hash[6], 0xff &
  78                         out_hash[7], 0xff & out_hash[8]);
  79                 fprintf(f, "\033[0m");
  80         } else {
  81                 fprintf(f, "      ");
  82         }
  83
  84         fprintf(f, " %s%*s", p->ip, (int) (20 > p->ip_len ? 20 - p->ip_len : 1),
  85                 " ");
  86         fprintf(f, "%s  ", UBSAFES(time_str));
  87         fprintf(f, "No. %ju\n", p->id);
  88
  89         if (p->file_name) {
  90                 fprintf(f, "        [ File: %s ]\n", p->file_name);
  91         }
  92
  93         fprintf(f, "        ");
  94
  95         if (p->comment_len > 40) {
  96                 fprintf(f, "%.*s...", 37, p->comment);
  97         } else if (p->comment_len) {
  98                 fprintf(f, "%s", p->comment);
  99         }
 100
 101         fprintf(f, "\n");
 102         fprintf(f, "--------------------------------------\n");
 103 done:
 104         free(time_str);
 105
 106         return 0;
 107 }
 108
 109 /* Do the thing */
 110 int main(int argc, char **argv)
 111 {
 112         int ret = EINVAL;
 113         struct configuration conf = { 0 };
 114         int opt = 0;
 115         const char *b_arg = 0;
 116         size_t board_idx = 0;
 117         const char *t_arg = 0;
 118         uintmax_t thread_id = 0;
 119
 120         setlocale(LC_ALL, "");
 121
 122         /* Parse options */
 123         while ((opt = getopt(argc, argv, "b:t:C")) != -1) {
 124                 switch (opt) {
 125                 case 'b':
 126
 127                         if (b_arg) {
 128                                 ERROR_MESSAGE("-b already specified");
 129                                 goto done;
 130                         }
 131
 132                         b_arg = optarg;
 133                         break;
 134                 case 't':
 135
 136                         if (t_arg) {
 137                                 ERROR_MESSAGE("-t already specified");
 138                                 goto done;
 139                         }
 140
 141                         t_arg = optarg;
 142                         break;
 143                 case 'C':
 144                         use_color = 0;
 145                         break;
 146                 default:
 147                         usage();
 148                         goto done;
 149                 }
 150         }
 151
 152         if (!b_arg ||
 153             !t_arg) {
 154                 usage();
 155                 goto done;
 156         }
 157
 158         conf = (struct configuration) {
 159                 /* */
 160                 .static_www_folder = static_www_folder,             /* */
 161                 .work_path = work_path,                             /* */
 162                 .trip_salt = trip_salt,                             /* */
 163                 .trip_salt_len = strlen(trip_salt),                 /* */
 164                 .boards = boards,                                   /* */
 165                 .boards_num = NUM_OF(boards),                       /* */
 166                 .max_form_data_size = max_form_data_size,           /* */
 167                 .max_file_size = max_file_size,                     /* */
 168                 .max_text_len = max_text_len,                       /* */
 169                 .filetypes = filetypes,                             /* */
 170                 .filetypes_num = NUM_OF(filetypes),                 /* */
 171                 .file_description_prog = file_description_prog,     /* */
 172                 .headers = headers,                                 /* */
 173                 .headers_num = NUM_OF(headers),                     /* */
 174                 .challenges = challenges,                           /* */
 175                 .challenges_num = NUM_OF(challenges),               /* */
 176                 .wordfilter_inputs = wordfilter_inputs,             /* */
 177                 .wordfilter_inputs_num = NUM_OF(wordfilter_inputs), /* */
 178         };
 179
 180         /* Interpret board */
 181         board_idx = (size_t) -1;
 182
 183         for (size_t j = 0; j < conf.boards_num; ++j) {
 184                 if (!strcmp(conf.boards[j].name, b_arg)) {
 185                         board_idx = j;
 186                 }
 187         }
 188
 189         if (board_idx == (size_t) -1) {
 190                 ERROR_MESSAGE("No board \"%s\" known", b_arg);
 191                 goto done;
 192         }
 193
 194         /* Interpret thread */
 195         errno = 0;
 196         thread_id = strtoull(t_arg, 0, 0);
 197
 198         if (errno) {
 199                 ret = errno;
 200                 PERROR_MESSAGE("strtoull");
 201                 goto done;
 202         }
 203
 204         /* Set up a minimal part of the system */
 205         if (setup_locks(&conf) < 0) {
 206                 goto done;
 207         }
 208
 209         if (setup_dbs(&conf) < 0) {
 210                 goto done;
 211         }
 212
 213         if (setup_write_thread(&conf) < 0) {
 214                 goto done;
 215         }
 216
 217         ret = db_writeback_posts_in_thread(board_idx, thread_id, stdout,
 218                                            print_post);
 219 done:
 220         clean_locks();
 221         clean_dbs();
 222         clean_write_thread();
 223
 224         return ret;
 225 }