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#include "article_cache.h" |
#include "article_cache.h" |
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#include "log.h" |
#include "log.h" |
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#include "lml.h" |
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#include <errno.h> |
#include <errno.h> |
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#include <stdio.h> |
#include <stdio.h> |
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#include <fcntl.h> |
#include <fcntl.h> |
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#include <string.h> |
#include <string.h> |
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#define ARTICLE_HEADER_MAX_LEN 4096 |
#define ARTICLE_HEADER_MAX_LEN 4096 |
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#define ARTICLE_CONTENT_MAX_LEN 1024 * 1024 * 4 // 4MB |
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#define ARTICLE_FOOTER_MAX_LEN 4096 |
#define ARTICLE_FOOTER_MAX_LEN 4096 |
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#define SUB_DT_MAX_LEN 50 |
#define SUB_DT_MAX_LEN 50 |
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static const char *BBS_article_footer_color[] = { |
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"\033[31m", |
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"\033[32m", |
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"\033[33m", |
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"\033[34m", |
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"\033[35m", |
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"\033[36m", |
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"\033[37m", |
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}; |
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static const int BBS_article_footer_color_count = 7; |
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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) |
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{ |
{ |
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if (file_path == NULL || cache_dir == NULL || p_article == NULL) |
if (file_path == NULL || cache_dir == NULL || p_article == NULL) |
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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, |
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const char *content, const char *sub_ip, int overwrite) |
const char *content, const char *sub_ip, int overwrite) |
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{ |
{ |
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static char *content_f; // static buffer in large size |
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char data_file[FILE_PATH_LEN]; |
char data_file[FILE_PATH_LEN]; |
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int fd; |
int fd; |
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ARTICLE_CACHE cache; |
ARTICLE_CACHE cache; |
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return -1; |
return -1; |
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} |
} |
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if (content_f == NULL && (content_f = malloc(ARTICLE_CONTENT_MAX_LEN)) == NULL) |
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{ |
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log_error("malloc(content_f) error: OOM\n"); |
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return -1; |
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} |
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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) |
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{ |
{ |
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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); |
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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); |
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snprintf(footer, sizeof(footer), |
snprintf(footer, sizeof(footer), |
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"--\n¡ù À´Ô´: %s http://%s [FROM: %s]\n", |
"\n--\n%s¡ù À´Ô´: %s http://%s [FROM: %s]\033[m\n\n", |
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BBS_article_footer_color[p_article->aid % BBS_article_footer_color_count], |
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BBS_name, BBS_server, sub_ip); |
BBS_name, BBS_server, sub_ip); |
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header_len = strnlen(header, sizeof(header)); |
header_len = strnlen(header, sizeof(header)); |
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footer_len = strnlen(footer, sizeof(footer)); |
footer_len = strnlen(footer, sizeof(footer)); |
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cache.data_len = header_len + strlen(content); |
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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); |
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if (header_len != cache.line_offsets[header_line_cnt]) |
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{ |
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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]); |
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header_len = (size_t)cache.line_offsets[header_line_cnt]; |
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} |
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// Apply LML render to content body |
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cache.data_len = header_len + (size_t)lml_plain(content, content_f, ARTICLE_CONTENT_MAX_LEN); |
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cache.line_total = header_line_cnt + |
cache.line_total = header_line_cnt + |
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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); |
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if (cache.line_total >= MAX_SPLIT_FILE_LINES) |
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if (cache.data_len - header_len != (size_t)cache.line_offsets[cache.line_total]) |
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{ |
{ |
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log_error("split_data_lines(%s) truncated over limit lines %d >= %d\n", data_file, cache.line_total, MAX_SPLIT_FILE_LINES); |
log_common("Body of article(aid=%d) is truncated from %ld to %ld\n", |
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return -3; |
p_article->aid, cache.data_len - header_len, cache.line_offsets[cache.line_total]); |
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cache.data_len = header_len + (size_t)(cache.line_offsets[cache.line_total]); |
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} |
} |
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for (i = header_line_cnt; i <= cache.line_total; i++) |
for (i = header_line_cnt; i <= cache.line_total; i++) |
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} |
} |
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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); |
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if (cache.line_total + footer_line_cnt >= MAX_SPLIT_FILE_LINES) |
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if (footer_len != cache.line_offsets[cache.line_total + footer_line_cnt]) |
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{ |
{ |
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log_error("split_data_lines(%s) truncated over limit lines %d >= %d\n", data_file, cache.line_total + footer_line_cnt, MAX_SPLIT_FILE_LINES); |
log_common("Footer of article(aid=%d) is truncated from %ld to %ld\n", |
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return -3; |
p_article->aid, footer_len, cache.line_offsets[cache.line_total + footer_line_cnt]); |
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footer_len = (size_t)(cache.line_offsets[cache.line_total + footer_line_cnt]); |
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} |
} |
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for (i = 0; i <= footer_line_cnt; i++) |
for (i = 0; i <= footer_line_cnt; i++) |
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cache.data_len += footer_len; |
cache.data_len += footer_len; |
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cache.line_total += footer_line_cnt; |
cache.line_total += footer_line_cnt; |
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cache.mmap_len = sizeof(cache) - sizeof(long) * (MAX_SPLIT_FILE_LINES - (size_t)(cache.line_total) - 1) + cache.data_len; |
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if (write(fd, &cache, sizeof(cache)) == -1) |
if (write(fd, &cache, cache.mmap_len - cache.data_len) == -1) |
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{ |
{ |
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log_error("write(%s, cache) error (%d)\n", data_file, errno); |
log_error("write(%s, cache) error (%d)\n", data_file, errno); |
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close(fd); |
close(fd); |
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close(fd); |
close(fd); |
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return -3; |
return -3; |
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} |
} |
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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) |
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{ |
{ |
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log_error("write(%s, content) error (%d)\n", data_file, errno); |
log_error("write(%s, content) error (%d)\n", data_file, errno); |
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close(fd); |
close(fd); |
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return -2; |
return -2; |
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} |
} |
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memcpy((void *)p_cache, p_mmap, sizeof(ARTICLE_CACHE)); |
if (((ARTICLE_CACHE *)p_mmap)->mmap_len != mmap_len) |
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if (sizeof(ARTICLE_CACHE) + p_cache->data_len != mmap_len) |
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{ |
{ |
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log_error("Inconsistent length, cache_len(%ld) + data_len(%ld) != mmap_len(%ld)\n", |
log_error("Inconsistent mmap len of article (cid=%d), %ld != %ld\n", p_article->cid, p_cache->mmap_len, mmap_len); |
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sizeof(ARTICLE_CACHE), p_cache->data_len, mmap_len); |
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if (munmap(p_mmap, mmap_len) < 0) |
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{ |
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log_error("munmap() error (%d)\n", errno); |
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} |
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return -3; |
return -3; |
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} |
} |
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bzero(p_cache, sizeof(*p_cache)); |
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memcpy((void *)p_cache, p_mmap, (size_t)(((ARTICLE_CACHE *)p_mmap)->mmap_len - ((ARTICLE_CACHE *)p_mmap)->data_len)); |
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p_cache->p_mmap = p_mmap; |
p_cache->p_mmap = p_mmap; |
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p_cache->p_data = p_mmap + sizeof(ARTICLE_CACHE); |
p_cache->p_data = p_mmap + (p_cache->mmap_len - p_cache->data_len); |
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return 0; |
return 0; |
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} |
} |
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return -1; |
return -1; |
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} |
} |
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if (munmap(p_cache->p_mmap, sizeof(ARTICLE_CACHE) + p_cache->data_len) < 0) |
if (munmap(p_cache->p_mmap, p_cache->mmap_len) < 0) |
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{ |
{ |
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log_error("munmap() error (%d)\n", errno); |
log_error("munmap() error (%d)\n", errno); |
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return -2; |
return -2; |