rb79-view-thread.c

   1 /*
   2  * Copyright (c) 2017-2018, 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, uint_fast8_t is_recent, const
  50                char *board_name,
  51                uintmax_t in_thread, uintmax_t total_posts_in_thread,
  52                uint_fast8_t hr_before)
  53 {
  54         char *time_str = util_iso8601_from_time_t(p->now);
  55         unsigned char out_hash[9] = { 0 };
  56
  57         UNUSED(is_summary);
  58         UNUSED(is_recent);
  59         UNUSED(hr_before);
  60         UNUSED(board_name);
  61         UNUSED(in_thread);
  62         UNUSED(total_posts_in_thread);
  63
  64         if (crypto_generichash(out_hash, 9, (const unsigned char *) p->ip,
  65                                p->ip_len, 0, 0)) {
  66                 PERROR_MESSAGE("crypto_generichash_init");
  67                 goto done;
  68         }
  69
  70         if (is_op) {
  71                 fprintf(f, "--------------------------------------\n");
  72         }
  73
  74         fprintf(f, " ");
  75
  76         if (use_color) {
  77                 fprintf(f, "\033[48;2;%d;%d;%dm  ", 0xff & out_hash[0], 0xff &
  78                         out_hash[1], 0xff & out_hash[2]);
  79                 fprintf(f, "\033[48;2;%d;%d;%dm  ", 0xff & out_hash[3], 0xff &
  80                         out_hash[4], 0xff & out_hash[5]);
  81                 fprintf(f, "\033[48;2;%d;%d;%dm  ", 0xff & out_hash[6], 0xff &
  82                         out_hash[7], 0xff & out_hash[8]);
  83                 fprintf(f, "\033[0m");
  84         } else {
  85                 fprintf(f, "      ");
  86         }
  87
  88         fprintf(f, " %s%*s", p->ip, (int) (20 > p->ip_len ? 20 - p->ip_len : 1),
  89                 " ");
  90         fprintf(f, "%s  ", UBSAFES(time_str));
  91         fprintf(f, "No. %ju\n", p->id);
  92
  93         if (p->file_name) {
  94                 fprintf(f, "        [ File: %s ]\n", p->file_name);
  95         }
  96
  97         fprintf(f, "        ");
  98
  99         if (p->comment_len > 40) {
 100                 fprintf(f, "%.*s...", 37, p->comment);
 101         } else if (p->comment_len) {
 102                 fprintf(f, "%s", p->comment);
 103         }
 104
 105         fprintf(f, "\n");
 106         fprintf(f, "--------------------------------------\n");
 107 done:
 108         free(time_str);
 109
 110         return 0;
 111 }
 112
 113 /* Do the thing */
 114 int main(int argc, char **argv)
 115 {
 116         int ret = EINVAL;
 117         struct configuration conf = { 0 };
 118         int opt = 0;
 119         const char *b_arg = 0;
 120         size_t board_idx = 0;
 121         const char *t_arg = 0;
 122         uintmax_t thread_id = 0;
 123
 124         setlocale(LC_ALL, "");
 125
 126         /* Parse options */
 127         while ((opt = getopt(argc, argv, "b:t:C")) != -1) {
 128                 switch (opt) {
 129                 case 'b':
 130
 131                         if (b_arg) {
 132                                 ERROR_MESSAGE("-b already specified");
 133                                 goto done;
 134                         }
 135
 136                         b_arg = optarg;
 137                         break;
 138                 case 't':
 139
 140                         if (t_arg) {
 141                                 ERROR_MESSAGE("-t already specified");
 142                                 goto done;
 143                         }
 144
 145                         t_arg = optarg;
 146                         break;
 147                 case 'C':
 148                         use_color = 0;
 149                         break;
 150                 default:
 151                         usage();
 152                         goto done;
 153                 }
 154         }
 155
 156         if (!b_arg ||
 157             !t_arg) {
 158                 usage();
 159                 goto done;
 160         }
 161
 162         conf = (struct configuration) {
 163                 /* */
 164                 .static_www_folder = static_www_folder,             /* */
 165                 .work_path = work_path,                             /* */
 166                 .trip_salt = trip_salt,                             /* */
 167                 .trip_salt_len = strlen(trip_salt),                 /* */
 168                 .boards = boards,                                   /* */
 169                 .boards_num = NUM_OF(boards),                       /* */
 170                 .max_form_data_size = max_form_data_size,           /* */
 171                 .max_file_size = max_file_size,                     /* */
 172                 .max_text_len = max_text_len,                       /* */
 173                 .filetypes = filetypes,                             /* */
 174                 .filetypes_num = NUM_OF(filetypes),                 /* */
 175                 .file_description_prog = file_description_prog,     /* */
 176                 .headers = headers,                                 /* */
 177                 .headers_num = NUM_OF(headers),                     /* */
 178                 .challenges = challenges,                           /* */
 179                 .challenges_num = NUM_OF(challenges),               /* */
 180                 .wordfilter_inputs = wordfilter_inputs,             /* */
 181                 .wordfilter_inputs_num = NUM_OF(wordfilter_inputs), /* */
 182         };
 183
 184         /* Interpret board */
 185         board_idx = (size_t) -1;
 186
 187         for (size_t j = 0; j < conf.boards_num; ++j) {
 188                 if (!strcmp(conf.boards[j].name, b_arg)) {
 189                         board_idx = j;
 190                 }
 191         }
 192
 193         if (board_idx == (size_t) -1) {
 194                 ERROR_MESSAGE("No board \"%s\" known", b_arg);
 195                 goto done;
 196         }
 197
 198         /* Interpret thread */
 199         errno = 0;
 200         thread_id = strtoull(t_arg, 0, 0);
 201
 202         if (errno) {
 203                 ret = errno;
 204                 PERROR_MESSAGE("strtoull");
 205                 goto done;
 206         }
 207
 208         /* Set up a minimal part of the system */
 209         if (setup_locks(&conf) < 0) {
 210                 goto done;
 211         }
 212
 213         if (setup_dbs(&conf) < 0) {
 214                 goto done;
 215         }
 216
 217         if (setup_write_thread(&conf) < 0) {
 218                 goto done;
 219         }
 220
 221         ret = db_writeback_posts_in_thread(board_idx, thread_id, stdout,
 222                                            print_post);
 223 done:
 224         clean_locks();
 225         clean_dbs();
 226         clean_write_thread();
 227
 228         return ret;
 229 }