From 75988e5cc680df6aad2b3aadf8fdbc42aabee00c Mon Sep 17 00:00:00 2001
From: Dm1tr1y147 <me@dmitriy.icu>
Date: Fri, 3 Jul 2020 16:14:19 +0500
Subject: [PATCH] Created functions to get articles list and articles's content

---
 .gitignore                |   4 +-
 src/articles_op/article.c | 152 ++++++++++++++++++++++++++++++++++++++
 src/netw_op/request.c     |   2 +-
 3 files changed, 156 insertions(+), 2 deletions(-)
 create mode 100644 src/articles_op/article.c

diff --git a/.gitignore b/.gitignore
index 0a16d2d..7eceb7f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,5 @@
 tmp/
 build/
-.vscode/
\ No newline at end of file
+.vscode/
+a.out
+test_*
\ No newline at end of file
diff --git a/src/articles_op/article.c b/src/articles_op/article.c
new file mode 100644
index 0000000..476031d
--- /dev/null
+++ b/src/articles_op/article.c
@@ -0,0 +1,152 @@
+#include <stdio.h>
+#include <time.h>
+#include <string.h>
+#include <stdlib.h>
+#include <ctype.h>
+
+#include "../../include/file_op/file.h"
+
+#define LINE_LENGTH 512;
+
+typedef struct
+{
+    char *title;
+    long time;
+    char *content;
+    unsigned long length;
+} article_info;
+
+char *trim(char *str)
+{
+    while (str[0] == ' ' || str[0] == '\n' || str[0] == '\t')
+    {
+        memmove(str, str + 1, strlen(str));
+    }
+    while (str[strlen(str) - 1] == ' ' || str[strlen(str) - 1] == '\n' || str[strlen(str) - 1] == '\t')
+    {
+        str[strlen(str) - 1] = '\0';
+    }
+
+    return str;
+}
+
+int list_articles(article_info **articles)
+{
+    // FILE *file = fopen("./static/articles_list.db", "r");
+    FILE *file = fopen("./test.db", "r");
+    if (file == NULL)
+    {
+        perror("Couldn't open file");
+        return -1;
+    }
+
+    char *buff = NULL;
+    size_t length = LINE_LENGTH;
+    size_t articles_amount = 0;
+
+    while (getline(&buff, &length, file) > 0)
+    {
+        if (buff[strlen(buff) - 1] == '\n')
+            buff[strlen(buff) - 1] = '\0';
+
+        if (strlen(buff) == 0)
+            continue;
+
+        articles_amount++;
+
+        article_info *tmp_articles = realloc(*articles, articles_amount * sizeof(article_info));
+        if (tmp_articles == NULL)
+            continue;
+        *articles = tmp_articles;
+
+        char *tmp = strdup(buff), *rest = tmp;
+
+        char *article_time_str = strtok_r(tmp, " ", &rest);
+        long article_time = strtol(article_time_str, NULL, 10);
+
+        if (article_time == 0)
+            continue;
+
+        (*articles)[articles_amount - 1].time = article_time;
+
+        rest = trim(rest);
+
+        if (strlen(rest) > 0)
+            (*articles)[articles_amount - 1].title = strdup(rest);
+        else
+            (*articles)[articles_amount - 1].title = "No title";
+
+        printf("%ld - \"%s\"\n", (*articles)[articles_amount - 1].time, (*articles)[articles_amount - 1].title);
+    }
+
+    free(buff);
+
+    return articles_amount;
+}
+
+long get_article_contents(article_info *article)
+{
+    char *name = strdup(article->title);
+    if (strcmp(article->title, "No title") == 0)
+    {
+        int line_length = snprintf(NULL, 0, "%ld", article->time) + 1;
+        name = malloc(line_length);
+        if (name == NULL)
+        {
+            article->content = "500";
+            return -1;
+        }
+
+        snprintf(name, line_length, "%ld", article->time);
+    }
+
+    // snprintf(NULL, 0, "./static/articles/%s/%s.md", article->title, article->title);
+    int line_length = snprintf(NULL, 0, "./articles/%s/%s.md", article->title, article->title) + 1;
+    char *path = malloc(line_length);
+    if (path == NULL)
+    {
+        article->content = "500";
+        return -1;
+    }
+
+    // snprintf(path, line_length, "./static/articles/%s/%s.md", article->title, article->title);
+    snprintf(path, line_length, "./articles/%s/%s.md", article->title, article->title);
+
+    FILE *file = fopen(path, "r");
+    if (file == NULL)
+    {
+        perror("Couldn't open file");
+        article->content = "404";
+        return -1;
+    }
+
+    fseek(file, 0L, SEEK_END);
+    article->length = ftell(file);
+    rewind(file);
+
+    article->content = malloc(article->length + 1);
+
+    for (int i = 0; i < article->length; i++)
+    {
+        article->content[i] = fgetc(file);
+    }
+
+    article->content[article->length] = '\0';
+
+    return article->length;
+}
+
+/* Only for testing purposes */
+int main()
+{
+    article_info *articles = malloc(0);
+
+    int n = list_articles(&articles);
+
+    printf("Read %d lines\n", n);
+    printf("Last article's creation date is %ld and title is %s\n", articles[n - 1].time, articles[n - 1].title);
+
+    get_article_contents(&(articles[0]));
+
+    return 0;
+}
\ No newline at end of file
diff --git a/src/netw_op/request.c b/src/netw_op/request.c
index 3140585..d3d20b5 100644
--- a/src/netw_op/request.c
+++ b/src/netw_op/request.c
@@ -168,7 +168,7 @@ void handle_get_request(int fd, char *request)
 
         
 
-        sprintf(msg, buff, articles_list_str, blogposts_list_str);
+        sprintf(msg, buff, articles_list_str);
 
         struct header_s *header = gen_header(200, strlen(msg), "text/html");
         send(fd, header->str, header->size - 1, 0);