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109 lines
2.5 KiB
C++
109 lines
2.5 KiB
C++
#include "stdafx.h"
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#include "qr.h"
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#include "http_servlet.h"
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http_servlet::http_servlet(acl::socket_stream* stream, acl::session* session)
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: acl::HttpServlet(stream, session)
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{
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}
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http_servlet::~http_servlet(void)
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{
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}
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bool http_servlet::doError(acl::HttpServletRequest&,
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acl::HttpServletResponse& res)
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{
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res.setStatus(400);
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res.setContentType("text/xml; charset=utf-8");
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// 发送 http 响应体
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acl::string buf;
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buf.format("<root error='some error happened!' />\r\n");
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res.write(buf);
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res.write(NULL, 0);
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return false;
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}
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bool http_servlet::doOther(acl::HttpServletRequest&,
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acl::HttpServletResponse& res, const char* method)
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{
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res.setStatus(400);
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res.setContentType("text/xml; charset=utf-8");
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// 发送 http 响应体
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acl::string buf;
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buf.format("<root error='unkown request method %s' />\r\n", method);
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res.write(buf);
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res.write(NULL, 0);
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return false;
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}
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bool http_servlet::doGet(acl::HttpServletRequest& req,
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acl::HttpServletResponse& res)
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{
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return doPost(req, res);
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}
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bool http_servlet::doPost(acl::HttpServletRequest& req,
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acl::HttpServletResponse& res)
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{
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int errcode = QR_ERR_NONE;
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QRCode* qr = qrInit(10, QR_EM_8BIT, 2, -1, &errcode);
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if (qr == NULL)
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{
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logger_error("qrInit error!");
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return replyf(req, res, "qrInit error");
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}
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const char* url = req.getParameter("url");
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if (url == NULL || *url == 0)
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url = "http://www.qq.com";
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qrAddData(qr, (const qr_byte_t*) url, strlen(url));
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if (!qrFinalize(qr))
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{
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logger_error("qrFinalize error!");
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qrDestroy(qr);
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return replyf(req, res, "qrFinalize error");
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}
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int size = 0;
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qr_byte_t *buffer = qrSymbolToPNG(qr, 5, 5, &size);
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if (buffer == NULL)
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{
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logger_error("qrSymbolToPNG error");
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qrDestroy(qr);
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return replyf(req, res, "qrSymbolToPNG error");
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}
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res.setContentType("image/png") // 设置响应字符集
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.setKeepAlive(req.isKeepAlive()) // 设置是否保持长连接
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.setContentEncoding(true) // 自动支持压缩传输
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.setContentLength(size);
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bool ret = res.write(buffer, size) && res.write(NULL, 0);
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qrDestroy(qr);
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return ret;
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}
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bool http_servlet::replyf(acl::HttpServletRequest& req,
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acl::HttpServletResponse& res,
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const char* fmt, ...)
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{
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acl::string buf;
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va_list ap;
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va_start(ap, fmt);
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buf.vformat(fmt, ap);
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va_end(ap);
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res.setContentType("text/plain; charset=utf-8") // 设置响应字符集
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.setKeepAlive(req.isKeepAlive()) // 设置是否保持长连接
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.setContentEncoding(true) // 自动支持压缩传输
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.setContentLength(buf.size());
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return res.write(buf) && res.write(NULL, 0);
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}
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