/[LeafOK_CVS]/lbbs/src/article_cache.c
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Revision 1.15 by sysadm, Wed Jun 11 12:31:51 2025 UTC Revision 1.31 by sysadm, Thu Oct 30 11:15:11 2025 UTC
# Line 15  Line 15 
15   ***************************************************************************/   ***************************************************************************/
16    
17  #include "article_cache.h"  #include "article_cache.h"
 #include "log.h"  
18  #include "lml.h"  #include "lml.h"
19    #include "log.h"
20  #include <errno.h>  #include <errno.h>
 #include <stdio.h>  
21  #include <fcntl.h>  #include <fcntl.h>
22    #include <stdio.h>
23  #include <stdlib.h>  #include <stdlib.h>
24    #include <string.h>
25    #include <time.h>
26  #include <unistd.h>  #include <unistd.h>
27  #include <sys/mman.h>  #include <sys/mman.h>
28  #include <sys/stat.h>  #include <sys/stat.h>
 #include <strings.h>  
 #define _POSIX_C_SOURCE 200809L  
 #include <string.h>  
29    
30  #define ARTICLE_HEADER_MAX_LEN 4096  #define ARTICLE_HEADER_MAX_LEN 4096
31  #define ARTICLE_CONTENT_MAX_LEN 1024 * 1024 * 4 // 4MB  #define ARTICLE_CONTENT_MAX_LEN 1024 * 1024 * 4 // 4MB
# Line 44  static const char *BBS_article_footer_co Line 43  static const char *BBS_article_footer_co
43  };  };
44  static const int BBS_article_footer_color_count = 7;  static const int BBS_article_footer_color_count = 7;
45    
46    static char *content_f; // static buffer in large size
47    
48  inline static int article_cache_path(char *file_path, size_t buf_len, const char *cache_dir, const ARTICLE *p_article)  inline static int article_cache_path(char *file_path, size_t buf_len, const char *cache_dir, const ARTICLE *p_article)
49  {  {
50          if (file_path == NULL || cache_dir == NULL || p_article == NULL)          if (file_path == NULL || cache_dir == NULL || p_article == NULL)
51          {          {
52                  log_error("article_cache_path() NULL pointer error\n");                  log_error("NULL pointer error\n");
53                  return -1;                  return -1;
54          }          }
55    
# Line 68  int article_cache_generate(const char *c Line 69  int article_cache_generate(const char *c
69          char header[ARTICLE_HEADER_MAX_LEN];          char header[ARTICLE_HEADER_MAX_LEN];
70          size_t header_len;          size_t header_len;
71          long header_line_cnt;          long header_line_cnt;
         char content_f[ARTICLE_CONTENT_MAX_LEN];  
72          char footer[ARTICLE_FOOTER_MAX_LEN];          char footer[ARTICLE_FOOTER_MAX_LEN];
73          size_t footer_len;          size_t footer_len;
74          long footer_line_cnt;          long footer_line_cnt;
# Line 76  int article_cache_generate(const char *c Line 76  int article_cache_generate(const char *c
76    
77          if (cache_dir == NULL || p_article == NULL || content == NULL)          if (cache_dir == NULL || p_article == NULL || content == NULL)
78          {          {
79                  log_error("article_cache_generate() NULL pointer error\n");                  log_error("NULL pointer error\n");
80                    return -1;
81            }
82    
83            if (content_f == NULL && (content_f = malloc(ARTICLE_CONTENT_MAX_LEN)) == NULL)
84            {
85                    log_error("malloc(content_f) error: OOM\n");
86                  return -1;                  return -1;
87          }          }
88    
# Line 101  int article_cache_generate(const char *c Line 107  int article_cache_generate(const char *c
107                  return -2;                  return -2;
108          }          }
109    
110          bzero(&cache, sizeof(cache));          memset(&cache, 0, sizeof(cache));
111    
112          // Generate article header / footer          // Generate article header / footer
113          localtime_r(&(p_article->sub_dt), &tm_sub_dt);          localtime_r(&(p_article->sub_dt), &tm_sub_dt);
114          strftime(str_sub_dt, sizeof(str_sub_dt), "%c", &tm_sub_dt);          strftime(str_sub_dt, sizeof(str_sub_dt), "%c", &tm_sub_dt);
115    
116          snprintf(header, sizeof(header), "发布者: %s (%s), 版块: %s (%s)\n标  题: %s\n发布于: %s (%s)\n\n",          snprintf(header, sizeof(header), "鍙戝竷鑰: %s (%s), 鐗堝潡: %s (%s)\n鏍  棰: %s\n鍙戝竷浜: %s (%s)\n\n",
117                           p_article->username, p_article->nickname, p_section->sname, p_section->stitle, p_article->title, BBS_name, str_sub_dt);                           p_article->username, p_article->nickname, p_section->sname, p_section->stitle, p_article->title, BBS_name, str_sub_dt);
118    
119          snprintf(footer, sizeof(footer),          snprintf(footer, sizeof(footer),
120                           "\n--\n%s※ 来源: %s http://%s [FROM: %s]\033[m\n\n",                           "\n--\n%s鈥 鏉ユ簮: %s http://%s [FROM: %s]\033[m\n\n",
121                           BBS_article_footer_color[p_article->aid % BBS_article_footer_color_count],                           BBS_article_footer_color[p_article->aid % BBS_article_footer_color_count],
122                           BBS_name, BBS_server, sub_ip);                           BBS_name, BBS_server, sub_ip);
123    
124          header_len = strnlen(header, sizeof(header));          header_len = strnlen(header, sizeof(header));
125          footer_len = strnlen(footer, sizeof(footer));          footer_len = strnlen(footer, sizeof(footer));
126    
127          header_line_cnt = split_data_lines(header, SCREEN_COLS, cache.line_offsets, MAX_SPLIT_FILE_LINES);          header_line_cnt = split_data_lines(header, SCREEN_COLS, cache.line_offsets, MAX_SPLIT_FILE_LINES, 1, NULL);
128    
129          if (header_len != cache.line_offsets[header_line_cnt])          if (header_len != cache.line_offsets[header_line_cnt])
130          {          {
131                  log_common("Header of article(aid=%d) is truncated from %ld to %ld\n", p_article->aid, header_len, cache.line_offsets[header_line_cnt]);  #ifdef _DEBUG
132                    log_error("Header of article(aid=%d) is truncated from %ld to %ld\n", p_article->aid, header_len, cache.line_offsets[header_line_cnt]);
133    #endif
134                  header_len = (size_t)cache.line_offsets[header_line_cnt];                  header_len = (size_t)cache.line_offsets[header_line_cnt];
135          }          }
136    
137          // Apply LML render to content body          // Apply LML render to content body
138          cache.data_len = header_len + (size_t)lml_plain(content, content_f, ARTICLE_CONTENT_MAX_LEN);          cache.data_len = header_len + (size_t)lml_render(content, content_f, ARTICLE_CONTENT_MAX_LEN, SCREEN_COLS - 1, 0);
139    
140          cache.line_total = header_line_cnt +          cache.line_total = header_line_cnt +
141                                             split_data_lines(content_f, SCREEN_COLS, cache.line_offsets + header_line_cnt, MAX_SPLIT_FILE_LINES - header_line_cnt);                                             split_data_lines(content_f, SCREEN_COLS, cache.line_offsets + header_line_cnt, MAX_SPLIT_FILE_LINES - header_line_cnt, 1, NULL);
142    
143          if (cache.data_len - header_len != (size_t)cache.line_offsets[cache.line_total])          if (cache.data_len - header_len != (size_t)cache.line_offsets[cache.line_total])
144          {          {
145                  log_common("Body of article(aid=%d) is truncated from %ld to %ld\n",  #ifdef _DEBUG
146                                  p_article->aid, cache.data_len - header_len, cache.line_offsets[cache.line_total]);                  log_error("Body of article(aid=%d) is truncated from %ld to %ld\n",
147                                      p_article->aid, cache.data_len - header_len, cache.line_offsets[cache.line_total]);
148    #endif
149                  cache.data_len = header_len + (size_t)(cache.line_offsets[cache.line_total]);                  cache.data_len = header_len + (size_t)(cache.line_offsets[cache.line_total]);
150          }          }
151    
# Line 144  int article_cache_generate(const char *c Line 154  int article_cache_generate(const char *c
154                  cache.line_offsets[i] += (long)header_len;                  cache.line_offsets[i] += (long)header_len;
155          }          }
156    
157          footer_line_cnt = split_data_lines(footer, SCREEN_COLS, cache.line_offsets + cache.line_total, MAX_SPLIT_FILE_LINES - cache.line_total);          footer_line_cnt = split_data_lines(footer, SCREEN_COLS, cache.line_offsets + cache.line_total, MAX_SPLIT_FILE_LINES - cache.line_total, 1, NULL);
158    
159          if (footer_len != cache.line_offsets[cache.line_total + footer_line_cnt])          if (footer_len != cache.line_offsets[cache.line_total + footer_line_cnt])
160          {          {
161                  log_common("Footer of article(aid=%d) is truncated from %ld to %ld\n",  #ifdef _DEBUG
162                                  p_article->aid, footer_len, cache.line_offsets[cache.line_total + footer_line_cnt]);                  log_error("Footer of article(aid=%d) is truncated from %ld to %ld\n",
163                                      p_article->aid, footer_len, cache.line_offsets[cache.line_total + footer_line_cnt]);
164    #endif
165                  footer_len = (size_t)(cache.line_offsets[cache.line_total + footer_line_cnt]);                  footer_len = (size_t)(cache.line_offsets[cache.line_total + footer_line_cnt]);
166          }          }
167    
# Line 196  int article_cache_generate(const char *c Line 208  int article_cache_generate(const char *c
208          return 0;          return 0;
209  }  }
210    
211    void article_cache_cleanup(void)
212    {
213            if (content_f)
214            {
215                    free(content_f);
216                    content_f = NULL;
217            }
218    }
219    
220  int article_cache_load(ARTICLE_CACHE *p_cache, const char *cache_dir, const ARTICLE *p_article)  int article_cache_load(ARTICLE_CACHE *p_cache, const char *cache_dir, const ARTICLE *p_article)
221  {  {
222          char data_file[FILE_PATH_LEN];          char data_file[FILE_PATH_LEN];
# Line 206  int article_cache_load(ARTICLE_CACHE *p_ Line 227  int article_cache_load(ARTICLE_CACHE *p_
227    
228          if (p_cache == NULL || cache_dir == NULL || p_article == NULL)          if (p_cache == NULL || cache_dir == NULL || p_article == NULL)
229          {          {
230                  log_error("article_cache_load() NULL pointer error\n");                  log_error("NULL pointer error\n");
231                  return -1;                  return -1;
232          }          }
233    
# Line 249  int article_cache_load(ARTICLE_CACHE *p_ Line 270  int article_cache_load(ARTICLE_CACHE *p_
270                  return -3;                  return -3;
271          }          }
272    
273          bzero(p_cache, sizeof(*p_cache));          memset(p_cache, 0, sizeof(*p_cache));
274          memcpy((void *)p_cache, p_mmap, (size_t)(((ARTICLE_CACHE *)p_mmap)->mmap_len - ((ARTICLE_CACHE *)p_mmap)->data_len));          memcpy((void *)p_cache, p_mmap, (size_t)(((ARTICLE_CACHE *)p_mmap)->mmap_len - ((ARTICLE_CACHE *)p_mmap)->data_len));
275    
276          p_cache->p_mmap = p_mmap;          p_cache->p_mmap = p_mmap;
277          p_cache->p_data = p_mmap + (p_cache->mmap_len - p_cache->data_len);          p_cache->p_data = (char *)p_mmap + (p_cache->mmap_len - p_cache->data_len);
278    
279          return 0;          return 0;
280  }  }
# Line 262  int article_cache_unload(ARTICLE_CACHE * Line 283  int article_cache_unload(ARTICLE_CACHE *
283  {  {
284          if (p_cache == NULL || p_cache->p_mmap == NULL)          if (p_cache == NULL || p_cache->p_mmap == NULL)
285          {          {
286                  log_error("article_cache_unload() NULL pointer error\n");                  log_error("NULL pointer error\n");
287                  return -1;                  return -1;
288          }          }
289    

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