HTTPServerInC/utils.c at main · wangchangemichael/HTTPServerInC · GitHub

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#include <string.h>
#include "http.h"

const char *get_mime_type(const char *path){
    const char *extension = strrchr(path, '.');
    if (!extension) return "application/octet-stream";
    if (strcmp(extension,".html") == 0) return "text/html";
    if(strcmp(extension, ".css") == 0) return "text/css";
    if (strcmp(extension, ".js") == 0)   return "application/javascript";
    if (strcmp(extension, ".json") == 0) return "application/json";
    return "application/octet-stream";
}

int sanitize_uri(char *uri) {
    if (uri[0] != '/') return -1;
    if (strstr(uri, "..")) return -1;
    const char *invalid = "<>\"{}|\\^[]`";
    for (int i = 0; uri[i]; i++) {
        if (strchr(invalid, uri[i])) return -1;
    }
    return 0;
}