Rod Coleman / lwip-mbed-2010

Port of LwIP performed by Ralf in 2010. Not recommended for use with recent mbed libraries, but good demos of raw LwIP possible

Dependents:   LwIP_raw_API_serverExample tiny-dtls

HTTPServer/HTTPStaticPage.h@0:0791c1fece8e, 2012-09-18 (annotated)

Committer:
RodColeman
Date:
Tue Sep 18 14:41:24 2012 +0000
Revision:
0:0791c1fece8e
[mbed] converted /Eth_TCP_Wei_Server/lwip

Who changed what in which revision?

UserRevisionLine numberNew contents of line
RodColeman 0:0791c1fece8e 1 #ifndef HTTPSTATICPAGE_H
RodColeman 0:0791c1fece8e 2 #define HTTPSTATICPAGE_H
RodColeman 0:0791c1fece8e 3
RodColeman 0:0791c1fece8e 4 #include "HTTPServer.h"
RodColeman 0:0791c1fece8e 5
RodColeman 0:0791c1fece8e 6 /**
RodColeman 0:0791c1fece8e 7 * A datastorage helper for the HTTPStaticPage class.
RodColeman 0:0791c1fece8e 8 * Stores only the left upload size.
RodColeman 0:0791c1fece8e 9 */
RodColeman 0:0791c1fece8e 10 class HTTPStaticPageData : public HTTPData {
RodColeman 0:0791c1fece8e 11 public: int left;
RodColeman 0:0791c1fece8e 12 };
RodColeman 0:0791c1fece8e 13
RodColeman 0:0791c1fece8e 14 /**
RodColeman 0:0791c1fece8e 15 * This class Provide a Handler to send Static HTTP Pages from the bin file.
RodColeman 0:0791c1fece8e 16 */
RodColeman 0:0791c1fece8e 17 class HTTPStaticPage : public HTTPHandler {
RodColeman 0:0791c1fece8e 18 public:
RodColeman 0:0791c1fece8e 19 /**
RodColeman 0:0791c1fece8e 20 * Constructer takes the pagename and the pagedata.
RodColeman 0:0791c1fece8e 21 * As long as the pagedata is NULL terminated you have not to tell the data length.
RodColeman 0:0791c1fece8e 22 * But if you want to send binary data you should tell us the size.
RodColeman 0:0791c1fece8e 23 */
RodColeman 0:0791c1fece8e 24 HTTPStaticPage(const char *path, const char *page, int length = 0)
RodColeman 0:0791c1fece8e 25 : HTTPHandler(path), _page(page) {
RodColeman 0:0791c1fece8e 26 _size = (length)?length:strlen(_page);
RodColeman 0:0791c1fece8e 27 }
RodColeman 0:0791c1fece8e 28
RodColeman 0:0791c1fece8e 29 HTTPStaticPage(HTTPServer *server, const char *path, const char *page, int length = 0)
RodColeman 0:0791c1fece8e 30 : HTTPHandler(path), _page(page) {
RodColeman 0:0791c1fece8e 31 _size = (length)?length:strlen(_page);
RodColeman 0:0791c1fece8e 32 server->addHandler(this);
RodColeman 0:0791c1fece8e 33 }
RodColeman 0:0791c1fece8e 34
RodColeman 0:0791c1fece8e 35 private:
RodColeman 0:0791c1fece8e 36 /**
RodColeman 0:0791c1fece8e 37 * A this Static Page is requested!
RodColeman 0:0791c1fece8e 38 * Prepare a datastorage helper "HTTPStaticPageHelper" to store the left data size.
RodColeman 0:0791c1fece8e 39 * And return HTTP_OK
RodColeman 0:0791c1fece8e 40 */
RodColeman 0:0791c1fece8e 41 virtual HTTPStatus init(HTTPConnection *con) const {
RodColeman 0:0791c1fece8e 42 HTTPStaticPageData *data = new HTTPStaticPageData();
RodColeman 0:0791c1fece8e 43 con->data = data;
RodColeman 0:0791c1fece8e 44 data->left = _size;
RodColeman 0:0791c1fece8e 45 con->setLength(_size);
RodColeman 0:0791c1fece8e 46 return HTTP_OK;
RodColeman 0:0791c1fece8e 47 }
RodColeman 0:0791c1fece8e 48
RodColeman 0:0791c1fece8e 49 /**
RodColeman 0:0791c1fece8e 50 * Send the maximum data out to the client.
RodColeman 0:0791c1fece8e 51 * If the file is complete transmitted close connection by returning HTTP_SuccessEnded
RodColeman 0:0791c1fece8e 52 */
RodColeman 0:0791c1fece8e 53 virtual HTTPHandle send(HTTPConnection *con, int maximum) const {
RodColeman 0:0791c1fece8e 54 HTTPStaticPageData *data = static_cast<HTTPStaticPageData *>(con->data);
RodColeman 0:0791c1fece8e 55 int len = min(maximum, data->left);
RodColeman 0:0791c1fece8e 56 err_t err;
RodColeman 0:0791c1fece8e 57
RodColeman 0:0791c1fece8e 58 do {
RodColeman 0:0791c1fece8e 59 err = con->write((void*)&_page[_size - data->left], len, 1);
RodColeman 0:0791c1fece8e 60 if(err == ERR_MEM) {
RodColeman 0:0791c1fece8e 61 len >>= 1;
RodColeman 0:0791c1fece8e 62 }
RodColeman 0:0791c1fece8e 63 } while(err == ERR_MEM && len > 1);
RodColeman 0:0791c1fece8e 64 if(err == ERR_OK) {
RodColeman 0:0791c1fece8e 65 data->left -= len;
RodColeman 0:0791c1fece8e 66 }
RodColeman 0:0791c1fece8e 67
RodColeman 0:0791c1fece8e 68 return (data->left)? HTTP_Success : HTTP_SuccessEnded;
RodColeman 0:0791c1fece8e 69 }
RodColeman 0:0791c1fece8e 70
RodColeman 0:0791c1fece8e 71 /** Pointer to the page data */
RodColeman 0:0791c1fece8e 72 const char *_page;
RodColeman 0:0791c1fece8e 73
RodColeman 0:0791c1fece8e 74 /** page data size*/
RodColeman 0:0791c1fece8e 75 int _size;
RodColeman 0:0791c1fece8e 76 };
RodColeman 0:0791c1fece8e 77
RodColeman 0:0791c1fece8e 78 #endif