shttpd_error.c

#include "shttpd.h"

enum {
    ERROR301, ERROR302, ERROR303, ERROR304, ERROR305, ERROR307,
    ERROR400, ERROR401, ERROR402, ERROR403, ERROR404, ERROR405, ERROR406,
    ERROR407, ERROR408, ERROR409, ERROR410, ERROR411, ERROR412, ERROR413,
    ERROR414, ERROR415, ERROR416, ERROR417,
    ERROR500, ERROR501, ERROR502, ERROR503, ERROR504, ERROR505
};

struct error_mine {
    int error_code;
    char *content;
    char *msg;
    int status;
};
struct error_mine _error_http[] =
        {
                {ERROR301, "Error: 301", "永久移动",      301},
                {ERROR302, "Error: 302", "创建",        302},
                {ERROR303, "Error: 303", "观察别的部分",    303},
                {ERROR304, "Error: 304", "只读",        304},
                {ERROR305, "Error: 305", "用户代理",      305},
                {ERROR307, "Error: 307", "临时重发",      307},

                {ERROR400, "Error: 400", "坏请求",       400},
                {ERROR401, "Error: 401", "未授权的",      401},
                {ERROR402, "Error: 402", "必要的支付",     402},
                {ERROR403, "Error: 403", "禁用",        403},
                {ERROR404, "Error: 404", "没找到",       404},
                {ERROR405, "Error: 405", "不允许的方式",    405},
                {ERROR406, "Error: 406", "不接受",       406},
                {ERROR407, "Error: 407", "需要代理验证",    407},
                {ERROR408, "Error: 408", "请求超时",      408},
                {ERROR409, "Error: 409", "冲突",        409},
                {ERROR410, "Error: 410", "停止",        410},
                {ERROR411, "Error: 411", "需要的长度",     411},
                {ERROR412, "Error: 412", "预处理失败",     412},
                {ERROR413, "Error: 413", "请求实体太大",    413},
                {ERROR414, "Error: 414", "请求-URI太大",  414},
                {ERROR415, "Error: 415", "不支持的媒体类型",  415},
                {ERROR416, "Error: 416", "请求的范围不满足",  416},
                {ERROR417, "Error: 417", "期望失败",      417},

                {ERROR500, "Error: 500", "服务器内部错误",   500},
                {ERROR501, "Error: 501", "不能实现",      501},
                {ERROR502, "Error: 502", "坏网关",       502},
                {ERROR503, "Error: 503", "服务不能实现",    503},
                {ERROR504, "Error: 504", "网关超时",      504},
                {ERROR505, "Error: 505", "HTTP版本不支持", 505}
        };

void Error_400(struct worker_ctl *wctl) {
    wctl->conn.con_res.status = 400;
    GenerateErrorMine(wctl);
}

void Error_403(struct worker_ctl *wctl) {
    wctl->conn.con_res.status = 403;
    GenerateErrorMine(wctl);
}

void Error_404(struct worker_ctl *wctl) {
    wctl->conn.con_res.status = 404;
    GenerateErrorMine(wctl);
}

void Error_505(struct worker_ctl *wctl) {
    wctl->conn.con_res.status = 505;
    GenerateErrorMine(wctl);
}

int GenerateErrorMine(struct worker_ctl *wctl) {
    struct error_mine *err = NULL;
    int n = sizeof(_error_http);
    int i;
    for (i=0; i < n; i++) {
        err = &_error_http[i];
        if (err->status == wctl->conn.con_res.status) {
            break;
        }
    }
    if (err->status != wctl->conn.con_res.status) {
        err = &_error_http[0];
    }

    snprintf(
            wctl->conn.dres,
            sizeof(wctl->conn.dres),
            "HTTP/%lu.%lu %d %s\r\n"
                    "Content-Type:%s\r\n"
                    "Content-Length:%d\r\n"
                    "\r\n"
                    "%s",
            wctl->conn.con_req.major,
            wctl->conn.con_req.minor,
            err->status,
            err->msg,
            "text/plain",
            strlen(err->content),
            err->content);
    wctl->conn.con_res.cl = strlen(err->content);
    wctl->conn.con_res.fd = -1;
    wctl->conn.con_res.status = err->status;

    return 0;
}