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/* $Id: html.c 18 2024-08-30 08:29:19Z nishi $ */
#include "web_html.h"
#include "web_db.h"
#include "ia_util.h"
#include <time.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdbool.h>
#include <sys/stat.h>
#include <dirent.h>
extern char* webroot;
extern const char* ircarc_version;
char* web_html_escape(const char* html) {
char* str = malloc(strlen(html) * 5 + 1);
int i;
int incr = 0;
for(i = 0; html[i] != 0; i++) {
if(html[i] == '&') {
str[incr++] = '&';
str[incr++] = 'a';
str[incr++] = 'm';
str[incr++] = 'p';
str[incr++] = ';';
} else if(html[i] == '<') {
str[incr++] = '&';
str[incr++] = 'l';
str[incr++] = 't';
str[incr++] = ';';
} else if(html[i] == '>') {
str[incr++] = '&';
str[incr++] = 'g';
str[incr++] = 't';
str[incr++] = ';';
} else {
str[incr++] = html[i];
;
}
}
str[incr] = 0;
return str;
}
#define TAG(tagname, el, chr) \
bool attr = true; \
if(bufincr > 0) { \
int k; \
for(k = bufincr - 1; k >= 0; k--) { \
if(buffer[k] == chr) { \
attr = false; \
int l; \
buffer[k] = 0; \
for(l = k; l < bufincr; l++) { \
buffer[l] = buffer[l + 1]; \
} \
break; \
} \
} \
if(!attr) bufincr--; \
} \
if(attr) { \
buffer[bufincr++] = chr; \
char* tmp = fmtmsg; \
fmtmsg = ia_strcat4(tmp, "<" tagname, el, ">"); \
free(tmp); \
} else { \
char* tmp = fmtmsg; \
fmtmsg = ia_strcat(tmp, "</" tagname ">"); \
free(tmp); \
}
int mtimesort(const struct dirent** d1_, const struct dirent** d2_) {
struct dirent* d1 = (struct dirent*)d1_;
struct dirent* d2 = (struct dirent*)d2_;
char* d1_path = ia_strcat3(webroot, "/", d1->d_name);
char* d2_path = ia_strcat3(webroot, "/", d2->d_name);
struct stat s1;
struct stat s2;
stat(d1_path, &s1);
stat(d2_path, &s2);
free(d1_path);
free(d2_path);
return s1.st_mtime - s2.st_mtime;
}
int web_html_generate(const char* name, web_range_t range) {
time_t t = time(NULL);
char* path = ia_strcat4(webroot, "/", name, ".html");
FILE* f = fopen(path, "w");
if(f != NULL) {
entry_t** e = web_db_query(range);
char date[512];
struct tm* tm = gmtime(&t);
strftime(date, sizeof(date), "%Y/%m/%d %H:%M:%S UTC", tm);
char* htmlesc = web_html_escape(name);
char* title = ia_strcat("Archive: ", htmlesc);
free(htmlesc);
fprintf(f, "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\" \"http://www.w3.org/TR/html4/loose.dtd\">\n");
fprintf(f, "<html>\n");
fprintf(f, " <head>\n");
fprintf(f, " <meta http-equiv=\"Content-Type\" content=\"text/html;charset=UTF-8\">\n");
fprintf(f, " <title>%s</title>\n", title);
fprintf(f, " <style type=\"text/css\">\n");
fprintf(f, " </style>\n");
fprintf(f, " </head>\n");
fprintf(f, " <body style=\"padding: 15px; margin: 0 auto; width: 900px;\">\n");
fprintf(f, " <div style=\"padding: 1px 0; margin: 0; text-align: center; background-color: #8080ff;\">\n");
fprintf(f, " <h1>%s</h1>\n", title);
fprintf(f, " </div>\n");
fprintf(f, " Archived at %s.<br>\n", date);
htmlesc = web_html_escape(range.channel);
fprintf(f, " Channel: <code>%s</code><br>\n", htmlesc);
free(htmlesc);
fprintf(f, " <hr>\n");
fprintf(f, " <a href=\"./\">Go back to index</a>\n");
fprintf(f, " <hr>\n");
fprintf(f, "<div>\n");
fprintf(f, " <pre style=\"margin: 0; border: solid 1px black; padding: 10px; overflow: scroll; width: 678px; min-height: 900px; background-color: #d0d0ff; float: left;\"><code>");
int i;
int bgcolor = 0xd0d0ff;
int fgcolor = 0x000000;
for(i = 0; e[i] != NULL; i++) {
time_t t = e[i]->time;
struct tm* tm = gmtime(&t);
char* escusr = web_html_escape(e[i]->username);
char* escmsg = web_html_escape(e[i]->message);
char date[512];
strftime(date, 512, "%Y/%m/%d %H:%M:%S UTC", tm);
char cbuf[2];
cbuf[1] = 0;
char* fmtmsg = ia_strdup("");
int j;
char buffer[512];
memset(buffer, 0, 512);
int bufincr = 0;
for(j = 0; escmsg[j] != 0; j++) {
if(escmsg[j] == 2) {
TAG("b", "", 'B');
} else if(escmsg[j] == 0x1d) {
TAG("i", "", 'I');
} else if(escmsg[j] == 0x1f) {
TAG("u", "", 'U');
} else if(escmsg[j] == 0x1e) {
TAG("s", "", 'S');
} else if(escmsg[j] == 0x16) {
char fgt[32];
char bgt[32];
int _c = fgcolor;
fgcolor = bgcolor;
bgcolor = _c;
sprintf(fgt, "#%06X", fgcolor);
sprintf(bgt, "#%06X", bgcolor);
char* _ = ia_strcat4(" style=\"background-color: ", bgt, "; color: ", fgt);
char* style = ia_strcat(_, ";\"");
free(_);
TAG("span", style, 'R');
} else if(escmsg[j] == 0x03) {
j++;
int k = j;
for(; escmsg[j] != 0 && j < k + 2; j++) {
if(!('0' <= escmsg[j] && escmsg[j] <= '9')) break;
}
if(escmsg[j] == ',') {
j++;
k = j;
for(; escmsg[j] != 0 && j < k + 2; j++) {
if(!('0' <= escmsg[j] && escmsg[j] <= '9')) break;
}
}
j--;
} else if(escmsg[j] == 0x0f) {
int k;
for(k = bufincr - 1; k >= 0; k--) {
char c = buffer[k];
if(c == 'B') {
char* tmp = fmtmsg;
fmtmsg = ia_strcat(tmp, "</b>");
free(tmp);
} else if(c == 'I') {
char* tmp = fmtmsg;
fmtmsg = ia_strcat(tmp, "</i>");
free(tmp);
} else if(c == 'U') {
char* tmp = fmtmsg;
fmtmsg = ia_strcat(tmp, "</u>");
free(tmp);
} else if(c == 'S') {
char* tmp = fmtmsg;
fmtmsg = ia_strcat(tmp, "</s>");
free(tmp);
} else if(c == 'R') {
char* tmp = fmtmsg;
fmtmsg = ia_strcat(tmp, "</span>");
free(tmp);
}
}
bufincr = 0;
bgcolor = 0xd0d0ff;
fgcolor = 0x000000;
} else {
cbuf[0] = escmsg[j];
char* tmp;
tmp = fmtmsg;
fmtmsg = ia_strcat(tmp, cbuf);
free(tmp);
}
}
for(j = bufincr - 1; j >= 0; j--) {
char c = buffer[j];
if(c == 'B') {
char* tmp = fmtmsg;
fmtmsg = ia_strcat(tmp, "</b>");
free(tmp);
} else if(c == 'I') {
char* tmp = fmtmsg;
fmtmsg = ia_strcat(tmp, "</i>");
free(tmp);
} else if(c == 'U') {
char* tmp = fmtmsg;
fmtmsg = ia_strcat(tmp, "</u>");
free(tmp);
} else if(c == 'S') {
char* tmp = fmtmsg;
fmtmsg = ia_strcat(tmp, "</s>");
free(tmp);
} else if(c == 'R') {
char* tmp = fmtmsg;
fmtmsg = ia_strcat(tmp, "</span>");
free(tmp);
}
}
fprintf(f, "<span class=\"line\">[%s] <%s> %s</span>\n", date, escusr, fmtmsg);
free(fmtmsg);
free(escusr);
free(escmsg);
free(e[i]->username);
free(e[i]->message);
free(e[i]);
}
free(e);
fprintf(f, "</code></pre>\n");
fprintf(f, " <div style=\"margin: 0; border: solid 1px black; width: 178px; min-height: 900px; padding: 10px; background-color: #d0d0ff; float: right; overflow: scroll\">Statistics<hr>%d messages</div>\n", i);
fprintf(f, " </div>\n");
fprintf(f, " <div style=\"clear: both\"></div>\n");
fprintf(f, " <hr>\n");
fprintf(f, " <a href=\"./\">Go back to index</a>\n");
fprintf(f, " <hr>\n");
fprintf(f, " <i>Generated by <a href=\"http://nishi.boats/ircarc\">IRC-Archiver</a> %s</i>\n", ircarc_version);
fprintf(f, " </body>\n");
fprintf(f, "</html>\n");
fclose(f);
free(title);
}
free(path);
path = ia_strcat(webroot, "/index.html");
f = fopen(path, "w");
if(f != NULL) {
char* title = ia_strdup("Index");
struct dirent** namelist;
int n = scandir(webroot, &namelist, NULL, mtimesort);
fprintf(f, "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\" \"http://www.w3.org/TR/html4/loose.dtd\">\n");
fprintf(f, "<html>\n");
fprintf(f, " <head>\n");
fprintf(f, " <meta http-equiv=\"Content-Type\" content=\"text/html;charset=UTF-8\">\n");
fprintf(f, " <title>%s</title>\n", title);
fprintf(f, " <style type=\"text/css\">\n");
fprintf(f, " </style>\n");
fprintf(f, " </head>\n");
fprintf(f, " <body style=\"padding: 15px; margin: 0 auto; width: 900px;\">\n");
fprintf(f, " <div style=\"padding: 1px 0; margin: 0; text-align: center; background-color: #8080ff;\">\n");
fprintf(f, " <h1>%s</h1>\n", title);
fprintf(f, " </div>\n");
fprintf(f, " <hr>\n");
fprintf(f, " <table border=\"1\" style=\"width: 100%%;\">\n");
fprintf(f, " <tr>\n");
fprintf(f, " <th>Name</th><th style=\"width: 250px;\">Archived at</th><th style=\"width: 100px;\">Link</th>");
fprintf(f, " </tr>\n");
int i;
for(i = 0; i < n; i++) {
if(strcmp(namelist[i]->d_name, "..") != 0 && strcmp(namelist[i]->d_name, ".") != 0 && strcmp(namelist[i]->d_name, "index.html") != 0) {
struct stat s;
char* np = ia_strcat3(webroot, "/", namelist[i]->d_name);
stat(np, &s);
struct tm* tm = gmtime(&s.st_mtime);
char date[512];
strftime(date, 512, "%Y/%m/%d %H:%M:%S UTC", tm);
char* name = ia_strdup(namelist[i]->d_name);
int j;
for(j = strlen(name) - 1; j >= 0; j--) {
if(name[j] == '.') {
name[j] = 0;
break;
}
}
char* esc = web_html_escape(name);
free(name);
fprintf(f, " <tr>\n");
fprintf(f, " <td>%s</td>", esc);
fprintf(f, " <td>%s</td>", date);
fprintf(f, " <td><a href=\"%s\">Link</a></td>", namelist[i]->d_name);
fprintf(f, " </tr>\n");
free(esc);
}
free(namelist[i]);
}
free(namelist);
fprintf(f, " </table>\n");
fprintf(f, " <hr>\n");
fprintf(f, " <i>Generated by <a href=\"http://nishi.boats/ircarc\">IRC-Archiver</a> %s</i>\n", ircarc_version);
fprintf(f, " </body>\n");
fprintf(f, "</html>\n");
fclose(f);
free(title);
}
free(path);
}