Beispiel #1
0
    //OpacApplication app = null;
    //SessionInfo sessioninfo = null;

    protected void Page_Load(object sender, EventArgs e)
    {
        if (WebUtil.PrepareEnvironment(this,
                                       ref app,
                                       ref sessioninfo) == false)
        {
            return;
        }

        string strError = "";
        int    nRet     = 0;

        string strBarcode = Request.QueryString["barcode"];

#if NO
        if (strBarcode.IndexOf("@") != -1)
        {
            if (sessioninfo.UserID == strBarcode &&
                string.IsNullOrEmpty(sessioninfo.PhotoUrl) == false)
            {
                this.Response.Redirect(this.sessioninfo.PhotoUrl, true);
                return;
            }
        }
#endif

        string strAction = Request.QueryString["action"];

        // 获得一般 QR 图像
        // getphoto.aspx?action=qri&barcode=????????&width=???&height=??? 其中 width 和 height 参数可以缺省
        // 获得读者证号 QR 图像
        // getphoto.aspx?action=pqri&barcode=????????&width=???&height=??? 其中 barcode 参数是读者证条码号。要求当前账户具有 getpatrontempid 的权限,而且读者身份只能获取自己的 tempid
        if (strAction == "qri" ||
            strAction == "pqri")
        {
            string strCharset    = Request.QueryString["charset"];
            string strWidth      = Request.QueryString["width"];
            string strHeight     = Request.QueryString["height"];
            string strDisableECI = Request.QueryString["disableECI"];

            bool bDisableECI = false;
            if (string.IsNullOrEmpty(strDisableECI) == false &&
                (strDisableECI.ToLower() == "true" ||
                 strDisableECI.ToLower() == "yes" ||
                 strDisableECI.ToLower() == "on"))
            {
                bDisableECI = true;
            }

            int nWidth = 0;

            if (string.IsNullOrEmpty(strWidth) == false)
            {
                if (Int32.TryParse(strWidth, out nWidth) == false)
                {
                    strError = "width 参数 '" + strWidth + "' 格式不合法";
                    goto ERROR1;
                }
            }
            int nHeight = 0;
            if (string.IsNullOrEmpty(strHeight) == false)
            {
                if (Int32.TryParse(strHeight, out nHeight) == false)
                {
                    strError = "height 参数 '" + strHeight + "' 格式不合法";
                    goto ERROR1;
                }
            }

            if (strAction == "qri")
            {
                nRet = app.OutputQrImage(
                    this.Page,
                    strBarcode,
                    strCharset,
                    nWidth,
                    nHeight,
                    bDisableECI,
                    false,
                    out strError);
                if (nRet == -1)
                {
                    goto ERROR1;
                }
            }
            else if (strAction == "pqri")
            {
                // 读者证号二维码
                string strCode = "";
                // 获得读者证号二维码字符串
                nRet = app.GetPatronTempId(
                    // sessioninfo,
                    strBarcode,
                    out strCode,
                    out strError);
                if (nRet == -1)
                {
                    goto ERROR1;    // 把出错信息作为图像返回
                }
                nRet = app.OutputQrImage(
                    this.Page,
                    strCode,
                    strCharset,
                    nWidth,
                    nHeight,
                    bDisableECI,
                    false,
                    out strError);
                if (nRet == -1)
                {
                    goto ERROR1;
                }
            }
            this.Response.End();
            return;
        }


        string strDisplayName   = Request.QueryString["displayName"];
        string strEncyptBarcode = Request.QueryString["encrypt_barcode"];

        // 2012/5/22
        // 较新的用法 userid=xxxx 或者 userid=encrypt:xxxx
        string strUserID = Request.QueryString["userid"];
        if (string.IsNullOrEmpty(strUserID) == false)
        {
            if (StringUtil.HasHead(strUserID, "encrypt:") == true)
            {
                strEncyptBarcode = strUserID.Substring("encrypt:".Length);
            }
            else
            {
                strBarcode = strUserID;
            }
        }

        string strPhotoPath = "";
        // 根据读者证条码号找到头像资源路径
        // return:
        //      -1  出错
        //      0   没有找到。包括读者记录不存在,或者读者记录里面没有头像对象
        //      1   找到
        nRet = app.GetReaderPhotoPath(
            // sessioninfo,
            strBarcode,
            strEncyptBarcode,
            strDisplayName,
            out strPhotoPath,
            out strError);
        if (nRet == -1)
        {
            goto ERROR1;
        }

        if (nRet == 0)
        {
            this.Response.Redirect(MyWebPage.GetStylePath(app, "nonephoto.png"), true);
            return;
        }

        // TODO: HEAD / if-modify-since等精细处理

        // FlushOutput flushdelegate = new FlushOutput(MyFlushOutput);

        nRet = app.DownloadObject(
            this,
            null,
            strPhotoPath,
            false,
            "",
            out strError);
        if (nRet == -1)
        {
            goto ERROR1;
        }

        Response.End();
        return;

#if NO
ERROR1:
        Response.Write(strError);
        Response.End();
        return;
#endif
ERROR1:
        {
            // 文字图片
            using (MemoryStream image = WebUtil.TextImage(
                       ImageFormat.Gif,
                       strError,
                       Color.Black,
                       Color.Yellow,
                       10,
                       300))
            {
                Page.Response.ContentType = "image/gif";
                this.Response.AddHeader("Content-Length", image.Length.ToString());

                this.Response.AddHeader("Pragma", "no-cache");
                this.Response.AddHeader("Cache-Control", "no-store, no-cache, must-revalidate, post-check=0, pre-check=0");
                this.Response.AddHeader("Expires", "0");

                FlushOutput flushdelegate = new FlushOutput(MyFlushOutput);

                image.Seek(0, SeekOrigin.Begin);
                StreamUtil.DumpStream(image, Response.OutputStream, flushdelegate);
            }
            Response.Flush();
            Response.End();
        }
    }
Beispiel #2
0
    void CreateRssLink(
        string strTitle,
        string strRssNavigateUrl)
    {
        if (string.IsNullOrEmpty(strRssNavigateUrl) == true)
        {
            return;
        }

        this.BrowseSearchResultControl1.Title = "<div class='resulttitle'><div class='text'>" + strTitle + "</div>" + "<div class='rss'><a class='rss' href='" + strRssNavigateUrl + "' title='RSS订阅'><img src='" + MyWebPage.GetStylePath(app, "rss.gif") + "'></img></a></div><div class='clear'></div>" + "</div>";

        HtmlLink link = new HtmlLink();

        link.Href = strRssNavigateUrl;
        link.Attributes.Add("rel", "alternate");
        link.Attributes.Add("type", "application/rss+xml");
        link.Attributes.Add("title", strTitle);

        this.Page.Header.Controls.Add(link);
    }