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/* $Id: news.c 3 2024-09-10 19:21:48Z nishi $ */
#define OK_NEWS_SRC
#include "ok_news.h"
#include "ok_util.h"
#include <stdio.h>
#include <stdbool.h>
#include <string.h>
#include <stdlib.h>
#include <stdint.h>
#include <sys/stat.h>
struct news_entry news_entry;
void ok_news_init(void){
news_entry.from = NULL;
news_entry.content = NULL;
}
int ok_news_read(const char* path){
if(news_entry.from != NULL){
free(news_entry.from);
news_entry.from = NULL;
}
if(news_entry.content != NULL){
free(news_entry.content);
news_entry.content = NULL;
}
struct stat s;
if(stat(path, &s) == 0){
char* boundary = NULL;
char* buffer = malloc(s.st_size + 1);
buffer[s.st_size] = 0;
FILE* f = fopen(path, "r");
fread(buffer, s.st_size, 1, f);
uint64_t i;
bool newline = false;
int incr = 0;
char* l = malloc(1);
l[0] = 0;
bool header = true;
bool ignore = false;
bool bheader = false;
for(i = 0; i < s.st_size; i++){
if(buffer[i] == '\r'){
if(buffer[i + 1] == '\n'){
/* newline */
i++;
if(!header){
char* line = malloc(i - 1 - incr + 1);
line[i - 1 - incr] = 0;
memcpy(line, buffer + incr, i - 1 - incr);
if(strcmp(line, ".") == 0){
free(line);
break;
}else{
char* ln = line;
if(line[0] == '.'){
ln++;
}
if(news_entry.content == NULL){
news_entry.content = malloc(1);
news_entry.content[0] = 0;
}
if(boundary != NULL && strcmp(ln, boundary) == 0){
bheader = true;
ignore = true;
}else if(boundary != NULL && bheader && strlen(ln) == 0){
bheader = false;
free(line);
incr = i + 1;
newline = true;
continue;
}else if(boundary != NULL && bheader){
int j;
for(j = 0; j < strlen(ln); j++){
if(ln[j] == ':'){
ln[j] = 0;
if(strcasecmp(ln, "Content-Type") == 0){
ignore = false;
j++;
for(; ln[j] != 0 && (ln[j] == ' ' || ln[j] == '\t'); j++);
if(ln[j] != 0){
char* v = ln + j;
int k;
for(k = 0; v[k] != 0; k++){
if(v[k] == ';'){
v[k] = 0;
break;
}
}
if(strcasecmp(v, "text/plain") == 0){
}else{
ignore = true;
}
}
}
break;
}
}
}
if(!ignore && !bheader){
char* tmp = news_entry.content;
news_entry.content = ok_strcat3(tmp, ln, "\n");
free(tmp);
}
}
free(line);
}else if(newline){
header = false;
}else{
char* line = malloc(i - 1 - incr + 1);
line[i - 1 - incr] = 0;
memcpy(line, buffer + incr, i - 1 - incr);
char* last = ok_strdup(l);
char* tmp = l;
l = ok_strcat(tmp, line);
free(tmp);
bool al = false;
if(('a' <= line[0] && line[0] <= 'z') || ('A' <= line[0] && line[0] <= 'Z')){
free(l);
l = ok_strdup(line);
al = true;
}
if(al){
char* ln = ok_strdup(l);
int j;
for(j = 0; ln[j] != 0; j++){
if(ln[j] == ':'){
char* key = ln;
char* value = "";
ln[j] = 0;
j++;
for(; ln[j] != 0 && (ln[j] == '\t' || ln[j] == ' '); j++);
if(ln[j] != 0) value = ln + j;
if(strcasecmp(key, "From") == 0){
if(news_entry.from != NULL) free(news_entry.from);
news_entry.from = ok_strdup(value);
}else if(strcasecmp(key, "Content-Type") == 0){
int k = 0;
int incr2 = 0;
for(k = 0; k <= strlen(value); k++){
if(value[k] == ';' || value[k] == 0){
char* attr = malloc(k - incr2 + 1);
attr[k - incr2] = 0;
memcpy(attr, value + incr2, k - incr2);
int in;
for(in = 0; attr[in] != 0; in++){
if(attr[in] == '='){
attr[in] = 0;
if(strcasecmp(attr, "boundary") == 0){
boundary = ok_strcat("--", attr + in + 1 + 1);
boundary[strlen(attr + in + 1 + 1) - 1 + 2] = 0;
ignore = true;
}
break;
}
}
free(attr);
k++;
for(; value[k] != 0 && (value[k] == ' ' || value[k] == '\t'); k++);
incr2 = k;
}
}
}
}
}
free(ln);
}
free(last);
free(line);
}
incr = i + 1;
newline = true;
}else{
newline = false;
}
}else{
newline = false;
}
}
free(l);
free(buffer);
if(boundary != NULL) free(boundary);
return 0;
}else{
return 1;
}
}