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start working on proper HTTP parser

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Nayan
2025-05-06 17:54:28 -04:00
parent 77ce9bca8b
commit 2739b3ae95
3 changed files with 115 additions and 77 deletions
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165
request_handler.c
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@@ -1,93 +1,108 @@
#include "request_handler.h"
void handle_request(char* request, int length, char* response,
size_t* response_length) {
request[length] = '\0'; // Null terminate request for printing
// Terminate request with EOF so strtok stops at end of string
request[length] = EOF;
printf("Request ---------\n");
printf("%s\n---------\n", request);
// Check if request is GET
char* ptr = request; // Modifiable pointer to request
char buf_temp[10]; // Temporary buffer to store request code
char* ptr_temp =
(char*)&buf_temp; // Modifiable pointer to temporary buffer
// Copy request code to temporary buffer
while (*ptr != ' ') {
*ptr_temp = *ptr;
ptr++;
ptr_temp++;
}
// Null terminate temporary buffer
*ptr_temp = '\0';
ptr++; // Skip over space
if (strcmp(buf_temp, "GET") == 0) {
printf("Received a GET request!!\n");
} else {
printf("Received a non-GET request!!\n");
return;
// Parse request into struct
http_request req;
char* lines[100];
int num_lines = 0;
char* tok = strtok(request, "\n");
while (tok != NULL) {
printf("%s\n", tok);
tok = strtok(NULL, "\n");
}
// Get filename from request url
char filename[100]; // Buffer to store filename
ptr_temp = (char*)&filename; // Modifiable pointer to filename
*ptr_temp = '.'; // Prepend . to filename
ptr_temp++;
// While loop to copy filename to temporary buffer
while (*ptr != ' ') {
// Convert %20 to space
if (*ptr == '%' && *(ptr + 1) == '2' && *(ptr + 2) == '0') {
ptr += 3;
*ptr_temp = ' ';
ptr_temp++;
} else {
// Copy character
*ptr_temp = *ptr;
ptr++;
ptr_temp++;
}
}
*ptr_temp = '\0'; // Null terminate filename
// printf("tok is %s\n", tok);
// Print filename
printf("Filename: %s\n", filename);
// // Check if request is GET
// char* ptr = request; // Modifiable pointer to request
// char buf_temp[10]; // Temporary buffer to store request code
// char* ptr_temp =
// (char*)&buf_temp; // Modifiable pointer to temporary buffer
// // Copy request code to temporary buffer
// while (*ptr != ' ') {
// *ptr_temp = *ptr;
// ptr++;
// ptr_temp++;
// }
// // Null terminate temporary buffer
// *ptr_temp = '\0';
// ptr++; // Skip over space
// if (strcmp(buf_temp, "GET") == 0) {
// printf("Received a GET request!!\n");
// } else {
// printf("Received a non-GET request!!\n");
// return;
// }
// // Get filename from request url
// char filename[100]; // Buffer to store filename
// ptr_temp = (char*)&filename; // Modifiable pointer to filename
// *ptr_temp = '.'; // Prepend . to filename
// ptr_temp++;
// // While loop to copy filename to temporary buffer
// while (*ptr != ' ') {
// // Convert %20 to space
// if (*ptr == '%' && *(ptr + 1) == '2' && *(ptr + 2) == '0') {
// ptr += 3;
// *ptr_temp = ' ';
// ptr_temp++;
// } else {
// // Copy character
// *ptr_temp = *ptr;
// ptr++;
// ptr_temp++;
// }
// }
// *ptr_temp = '\0'; // Null terminate filename
// // Print filename
// printf("Filename: %s\n", filename);
// Create reponse string
ptr_temp = response;
char* ptr_temp = response;
char* temp =
"HTTP/1.1 200 OK\r\nContent-Type: text/html \r\nContent-Length: ";
while (*temp != '\0') {
*ptr_temp = *temp;
ptr_temp++;
temp++;
}
// Put content length in the html response
int content_length = strlen(filename);
char content_length_str[10];
sprintf(content_length_str, "%d", content_length);
temp = (char*)&content_length_str;
while (*temp != '\0') {
*ptr_temp = *temp;
ptr_temp++;
temp++;
}
// Terminate header
temp = "\r\n\r\n\0";
while (*temp != '\0') {
*ptr_temp = *temp;
ptr_temp++;
temp++;
}
// Put the filename in the html response
temp = filename;
while (*temp != '\0') {
*ptr_temp = *temp;
ptr_temp++;
temp++;
}
"HTTP/1.1 200 OK\r\nContent-Type: text/html \r\nContent-Length: "
"0\r\n\r\n\0";
strcpy(ptr_temp, temp);
// while (*temp != '\0') {
// *ptr_temp = *temp;
// ptr_temp++;
// temp++;
// }
// // Put content length in the html response
// int content_length = strlen(filename);
// char content_length_str[10];
// sprintf(content_length_str, "%d", content_length);
// temp = (char*)&content_length_str;
// while (*temp != '\0') {
// *ptr_temp = *temp;
// ptr_temp++;
// temp++;
// }
// // Terminate header
// temp = "\r\n\r\n\0";
// while (*temp != '\0') {
// *ptr_temp = *temp;
// ptr_temp++;
// temp++;
// }
// // Put the filename in the html response
// temp = filename;
// while (*temp != '\0') {
// *ptr_temp = *temp;
// ptr_temp++;
// temp++;
// }
*ptr_temp = '\0'; // Null terminate response
// *ptr_temp = '\0'; // Null terminate response
printf("Response --------\n");
printf("%s\n--------\n", response);