/[LeafOK_CVS]/lbbs/src/article_cache.c
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Diff of /lbbs/src/article_cache.c

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Revision 1.8 by sysadm, Sun Jun 1 14:04:19 2025 UTC Revision 1.17 by sysadm, Mon Jun 16 01:36:56 2025 UTC
# Line 16  Line 16 
16    
17  #include "article_cache.h"  #include "article_cache.h"
18  #include "log.h"  #include "log.h"
19    #include "lml.h"
20  #include <errno.h>  #include <errno.h>
21  #include <stdio.h>  #include <stdio.h>
22  #include <fcntl.h>  #include <fcntl.h>
# Line 28  Line 29 
29  #include <string.h>  #include <string.h>
30    
31  #define ARTICLE_HEADER_MAX_LEN 4096  #define ARTICLE_HEADER_MAX_LEN 4096
32    #define ARTICLE_CONTENT_MAX_LEN 1024 * 1024 * 4 // 4MB
33  #define ARTICLE_FOOTER_MAX_LEN 4096  #define ARTICLE_FOOTER_MAX_LEN 4096
34  #define SUB_DT_MAX_LEN 50  #define SUB_DT_MAX_LEN 50
35    
# Line 58  inline static int article_cache_path(cha Line 60  inline static int article_cache_path(cha
60  int article_cache_generate(const char *cache_dir, const ARTICLE *p_article, const SECTION_LIST *p_section,  int article_cache_generate(const char *cache_dir, const ARTICLE *p_article, const SECTION_LIST *p_section,
61                                                     const char *content, const char *sub_ip, int overwrite)                                                     const char *content, const char *sub_ip, int overwrite)
62  {  {
63            static char *content_f; // static buffer in large size
64    
65          char data_file[FILE_PATH_LEN];          char data_file[FILE_PATH_LEN];
66          int fd;          int fd;
67          ARTICLE_CACHE cache;          ARTICLE_CACHE cache;
# Line 77  int article_cache_generate(const char *c Line 81  int article_cache_generate(const char *c
81                  return -1;                  return -1;
82          }          }
83    
84            if (content_f == NULL && (content_f = malloc(ARTICLE_CONTENT_MAX_LEN)) == NULL)
85            {
86                    log_error("malloc(content_f) error: OOM\n");
87                    return -1;
88            }
89    
90          if (article_cache_path(data_file, sizeof(data_file), cache_dir, p_article) < 0)          if (article_cache_path(data_file, sizeof(data_file), cache_dir, p_article) < 0)
91          {          {
92                  log_error("article_cache_path(dir=%s, cid=%d) error\n", cache_dir, p_article->cid);                  log_error("article_cache_path(dir=%s, cid=%d) error\n", cache_dir, p_article->cid);
# Line 108  int article_cache_generate(const char *c Line 118  int article_cache_generate(const char *c
118                           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);
119    
120          snprintf(footer, sizeof(footer),          snprintf(footer, sizeof(footer),
121                           "--\n%s¡ù À´Ô´: %s http://%s [FROM: %s]\033[m\n",                           "\n--\n%s¡ù À´Ô´: %s http://%s [FROM: %s]\033[m\n\n",
122                           BBS_article_footer_color[p_article->aid % BBS_article_footer_color_count],                           BBS_article_footer_color[p_article->aid % BBS_article_footer_color_count],
123                           BBS_name, BBS_server, sub_ip);                           BBS_name, BBS_server, sub_ip);
124    
125          header_len = strnlen(header, sizeof(header));          header_len = strnlen(header, sizeof(header));
126          footer_len = strnlen(footer, sizeof(footer));          footer_len = strnlen(footer, sizeof(footer));
127    
128          cache.data_len = header_len + strlen(content);          header_line_cnt = split_data_lines(header, SCREEN_COLS, cache.line_offsets, MAX_SPLIT_FILE_LINES, 1);
129    
130            if (header_len != cache.line_offsets[header_line_cnt])
131            {
132                    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]);
133                    header_len = (size_t)cache.line_offsets[header_line_cnt];
134            }
135    
136            // Apply LML render to content body
137            cache.data_len = header_len + (size_t)lml_plain(content, content_f, ARTICLE_CONTENT_MAX_LEN);
138    
         header_line_cnt = split_data_lines(header, SCREEN_COLS, cache.line_offsets, MAX_SPLIT_FILE_LINES);  
139          cache.line_total = header_line_cnt +          cache.line_total = header_line_cnt +
140                                             split_data_lines(content, 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);
141    
142            if (cache.data_len - header_len != (size_t)cache.line_offsets[cache.line_total])
143            {
144                    log_common("Body of article(aid=%d) is truncated from %ld to %ld\n",
145                                    p_article->aid, cache.data_len - header_len, cache.line_offsets[cache.line_total]);
146                    cache.data_len = header_len + (size_t)(cache.line_offsets[cache.line_total]);
147            }
148    
149          for (i = header_line_cnt; i <= cache.line_total; i++)          for (i = header_line_cnt; i <= cache.line_total; i++)
150          {          {
151                  cache.line_offsets[i] += (long)header_len;                  cache.line_offsets[i] += (long)header_len;
152          }          }
153    
154          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);
155    
156            if (footer_len != cache.line_offsets[cache.line_total + footer_line_cnt])
157            {
158                    log_common("Footer of article(aid=%d) is truncated from %ld to %ld\n",
159                                    p_article->aid, footer_len, cache.line_offsets[cache.line_total + footer_line_cnt]);
160                    footer_len = (size_t)(cache.line_offsets[cache.line_total + footer_line_cnt]);
161            }
162    
163          for (i = 0; i <= footer_line_cnt; i++)          for (i = 0; i <= footer_line_cnt; i++)
164          {          {
# Line 149  int article_cache_generate(const char *c Line 181  int article_cache_generate(const char *c
181                  close(fd);                  close(fd);
182                  return -3;                  return -3;
183          }          }
184          if (write(fd, content, cache.data_len - header_len - footer_len) == -1)          if (write(fd, content_f, cache.data_len - header_len - footer_len) == -1)
185          {          {
186                  log_error("write(%s, content) error (%d)\n", data_file, errno);                  log_error("write(%s, content) error (%d)\n", data_file, errno);
187                  close(fd);                  close(fd);
# Line 224  int article_cache_load(ARTICLE_CACHE *p_ Line 256  int article_cache_load(ARTICLE_CACHE *p_
256                  return -3;                  return -3;
257          }          }
258    
259            bzero(p_cache, sizeof(*p_cache));
260          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));
261    
262          p_cache->p_mmap = p_mmap;          p_cache->p_mmap = p_mmap;

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