parse() function in server.c

bool parse(const char* line, char* abs_path, char* query)
{
    if (line[0] != 'G' && line[1] != 'E' && line[2] != 'T' && line[3] != ' ')
    {
        error(405);
        return false;
    }
    if (line[3] != ' ')
    {
        error(405);
        return false;
    }
    else if (line[4] != '/')
    {
        error(501);
        return false;
    }

    char* temp_path = strchr(line, '/');
    int index = 0;
    for (int length = strlen(temp_path); index < length; index++)
    {
        if (temp_path[index] == ' ')
        {
            break;
        }
    }
    strncpy(abs_path, temp_path, index);
    abs_path[index] = '\0';
    for (int i = 0, n = strlen(abs_path); i < n; i++)
    {
        if (abs_path[i] == '"')
        {
            error(400);
            return false;
        }
        if (abs_path[i] == '?')
        {
            return false;
        }
    }

    char* temp_query = strchr(line, '?');
    if (temp_query != NULL)
    {
        index = 0;
        for (int length = strlen(temp_query); index < length; index++)
        {
            if (temp_query[index] == ' ')
            {
                break;
            }
        }
        strncpy(query, temp_query, index);
    }

    char* version = strstr(line, "HTTP/1.1");
    if (version == NULL)
    {
        error(505);
        return false;
    }
    else if (line[index + 1] == 'H' && line[index + 2] == 'T' && line[index + 3] == 'T' && line[index + 4] == 'P' &&
             line[index + 5] == '/' && line[index + 6] == '1' && line[index + 7] == '.' && line[index + 8] == '0')
    {
        error(505);
        return false;
    }

    return true;
}