Initial Commit

.idea/.gitignore

@@ -0,0 +1,8 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Editor-based HTTP Client requests
+/httpRequests/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml

.idea/misc.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="CMakePythonSetting">
+    <option name="pythonIntegrationState" value="YES" />
+  </component>
+  <component name="CMakeWorkspace" PROJECT_DIR="$PROJECT_DIR$" />
+</project>

.idea/modules.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/untitled1.iml" filepath="$PROJECT_DIR$/.idea/untitled1.iml" />
+    </modules>
+  </component>
+</project>

.idea/untitled1.iml

@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module classpath="CMake" type="CPP_MODULE" version="4" />

.idea/vcs.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>

CMakeLists.txt

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+cmake_minimum_required(VERSION 3.28)
+project(HttpServer C)
+
+set(CMAKE_C_STANDARD 23)
+
+add_executable(HttpServer main.c
+        handle_client.c
+        handle_client.h
+        util.c
+        util.h)

handle_client.c

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+//
+// Created by franchioping on 6/24/24.
+//
+
+#include "handle_client.h"
+
+#include <string.h>
+#include <stdio.h>
+#include <malloc.h>
+#include <sys/socket.h>
+
+
+#include "util.h"
+
+
+#define BUFFER_SIZE 256
+
+char** request_get_lines_from_buff(const char* buff, size_t buff_len, int* lines_count){
+    int line_count = 0;
+    for(int i = 0; i < buff_len-1; i++){
+        if(buff[i] == '\r' && buff[i+1]=='\n')
+            line_count ++;
+    }
+    char** lines = (char**) malloc(sizeof(char*) * line_count);
+    int line_start = 0;
+    int line_num = 0;
+    for(int i = 0; i < buff_len; i++){
+        if(buff[i] == '\r' && buff[i+1]=='\n'){
+            char* line = malloc(sizeof(char) * (i - line_start + 1));
+            memcpy(line, &buff[line_start], i - line_start);
+            line[i - line_start] = '\0';
+
+            lines[line_num++] = line;
+
+            line_start=i+2;
+        }
+    }
+    *lines_count = line_count;
+    return lines;
+}
+
+void handle_client(void* arg){
+    int client_fd = *((int*) arg);
+
+    char* buff = (char*) malloc(BUFFER_SIZE * sizeof(char));
+
+    ssize_t bytes_received = recv(client_fd, buff, BUFFER_SIZE, 0);
+    if(bytes_received < 0){
+        printf("Failed to receive.\n");
+        return;
+    }
+
+    // Print Request
+    printf("Bytes Received: %lu\n", bytes_received);
+    printf("Request:\n");
+
+    //print_string(buff, bytes_received);
+
+    int lines_count = 0;
+    char** lines = request_get_lines_from_buff(buff, bytes_received, &lines_count);
+
+    for(int i = 0; i < lines_count; i++){
+        char* line = lines[i];
+        printf("%s\n", line);
+        free(line);
+    }
+    printf("\n");
+
+    free(lines);
+}

handle_client.h

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+//
+// Created by franchioping on 6/24/24.
+//
+
+#ifndef UNTITLED1_HANDLE_CLIENT_H
+#define UNTITLED1_HANDLE_CLIENT_H
+
+void handle_client(void* arg);
+
+
+#endif //UNTITLED1_HANDLE_CLIENT_H

main.c

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+#include <stdio.h>
+#include <sys/socket.h>
+#include <arpa/inet.h>
+#include <malloc.h>
+
+
+#include "handle_client.h"
+
+
+int main(void) {
+    int serv_sock_fd = socket(AF_INET, SOCK_STREAM, 0);
+
+    if(serv_sock_fd < 0){
+        printf("Error while creating socket\n");
+        return -1;
+    }
+
+    const int enable = 1;
+    if (setsockopt(serv_sock_fd, SOL_SOCKET, SO_REUSEADDR, &enable, sizeof(int)) < 0)
+        printf("setsockopt(SO_REUSEADDR) failed");
+    printf("Created Socket File Descriptor Successfully.\n");
+
+
+
+    struct sockaddr_in server_addr;
+
+    server_addr.sin_family = AF_INET;
+    server_addr.sin_port = htons(8080);
+    server_addr.sin_addr.s_addr = inet_addr("127.0.0.1");
+
+    if(bind(serv_sock_fd, (struct sockaddr*)&server_addr, sizeof(server_addr)) < 0){
+        printf("Couldn't bind to port\n");
+        return -1;
+    }
+    printf("Socket Bound to Port Successfully.\n");
+
+
+
+    if(listen(serv_sock_fd, 10) < 0){
+        printf("Couldn't listen to socket\n");
+        return -1;
+    }
+    printf("Socket Listening...\n");
+
+    while(1){
+        struct sockaddr_in client_addr;
+        socklen_t client_addr_len = sizeof(client_addr);
+        int *client_fd = malloc(sizeof(int));
+
+        *client_fd = accept(serv_sock_fd, (struct sockaddr *)&client_addr, &client_addr_len);
+        if(*client_fd < 0){
+            perror("Accept failed\n");
+            continue;
+        }
+
+        printf("================================\n");
+        printf("Client Connected, Handling...\n");
+        handle_client((void*) client_fd);
+
+    }
+    return 0;
+}
+
+

util.c

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+//
+// Created by franchioping on 6/24/24.
+//
+
+#include "util.h"
+
+#include <stdio.h>
+
+
+void print_string(char* string, size_t string_len){
+    for(int i = 0; i < string_len; i++){
+        if(string[i] == '\r'){
+            continue;
+        }
+        printf("%c", string[i]);
+    }
+}

util.h

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+//
+// Created by franchioping on 6/24/24.
+//
+
+#ifndef UNTITLED1_UTIL_H
+#define UNTITLED1_UTIL_H
+#include <stddef.h>
+
+void print_string(char* sting, size_t string_len);
+
+
+#endif //UNTITLED1_UTIL_H