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114 lines
4.6 KiB
114 lines
4.6 KiB
#ifndef HTTPD_H
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#define HTTPD_H
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#include <esp8266.h>
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#define HTTPDVER "0.4-based"
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#define HTTPD_CGI_MORE 0
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#define HTTPD_CGI_DONE 1
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#define HTTPD_CGI_NOTFOUND 2
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#define HTTPD_CGI_AUTHENTICATED 3
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#define HTTPD_METHOD_GET 1
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#define HTTPD_METHOD_POST 2
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#define HTTPD_METHOD_OPTIONS 3
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typedef struct HttpdPriv HttpdPriv;
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typedef struct HttpdConnData HttpdConnData;
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typedef struct HttpdPostData HttpdPostData;
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typedef int (* cgiSendCallback)(HttpdConnData *connData);
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typedef int (* cgiRecvHandler)(HttpdConnData *connData, char *data, int len);
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//A struct describing a http connection. This gets passed to cgi functions.
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struct HttpdConnData {
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ConnTypePtr conn; // The TCP connection. Exact type depends on the platform.
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char requestType; // One of the HTTPD_METHOD_* values
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char *url; // The URL requested, without hostname or GET arguments
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char *getArgs; // The GET arguments for this request, if any.
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const void *cgiArg; // Argument to the CGI function, as stated as the 3rd argument of
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// the builtInUrls entry that referred to the CGI function.
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const void *cgiArg2; // Argument to the CGI function, as stated as the 4th argument of
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// the builtInUrls entry that referred to the CGI function.
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void *cgiData; // Opaque data pointer for the CGI function
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char *hostName; // Host name field of request
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HttpdPriv *priv; // Opaque pointer to data for internal httpd housekeeping
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cgiSendCallback cgi; // CGI function pointer
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cgiRecvHandler recvHdl; // Handler for data received after headers, if any
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HttpdPostData *post; // POST data structure
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int remote_port; // Remote TCP port
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uint8 remote_ip[4]; // IP address of client
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uint8 slot; // Slot ID
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};
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//A struct describing the POST data sent inside the http connection. This is used by the CGI functions
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struct HttpdPostData {
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int len; // POST Content-Length
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int buffSize; // The maximum length of the post buffer
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int buffLen; // The amount of bytes in the current post buffer
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int received; // The total amount of bytes received so far
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char *buff; // Actual POST data buffer
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char *multipartBoundary; //Text of the multipart boundary, if any
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};
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//A struct describing an url. This is the main struct that's used to send different URL requests to
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//different routines.
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typedef struct {
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const char *url;
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cgiSendCallback cgiCb;
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const void *cgiArg;
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const void *cgiArg2;
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} HttpdBuiltInUrl;
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// macros for defining HttpdBuiltInUrl's
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#define ROUTE_CGI_ARG2(path, handler, arg1, arg2) {path, handler, (void *)arg1, (void *)arg2}
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#define ROUTE_CGI_ARG(path, handler, arg1) ROUTE_CGI_ARG2(path, handler, arg1, NULL)
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#define ROUTE_CGI(path, handler) ROUTE_CGI_ARG2(path, handler, NULL, NULL)
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#define ROUTE_FILE(path, filepath) ROUTE_CGI_ARG(path, cgiEspFsFile, filepath)
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// the argument of a template route is accessible as cgiArg2 on the connData struct.
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#define ROUTE_TPL(path, replacer) ROUTE_CGI_ARG(path, cgiEspFsTemplate, replacer)
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#define ROUTE_TPL_FILE(path, replacer, filepath) ROUTE_CGI_ARG2(path, cgiEspFsTemplate, replacer, filepath)
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#define ROUTE_REDIRECT(path, target) ROUTE_CGI_ARG(path, cgiRedirect, target)
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#define ROUTE_AUTH(path, passwdFunc) ROUTE_CGI_ARG(path, authBasic, passwdFunc)
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// catch-all route
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#define ROUTE_FS(path) ROUTE_CGI(path, cgiEspFsHook)
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#define ROUTE_END() {NULL, NULL, NULL, NULL}
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int cgiRedirect(HttpdConnData *connData);
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int cgiRedirectToHostname(HttpdConnData *connData);
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int cgiRedirectApClientToHostname(HttpdConnData *connData);
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void httpdRedirect(HttpdConnData *conn, char *newUrl);
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int httpdUrlDecode(char *val, int valLen, char *ret, int retLen);
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int httpdFindArg(char *line, char *arg, char *buff, int buffLen);
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void httpdInit(HttpdBuiltInUrl *fixedUrls, int port);
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const char *httpdGetMimetype(const char *url);
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void httpdDisableTransferEncoding(HttpdConnData *conn);
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void httpdStartResponse(HttpdConnData *conn, int code);
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void httpdHeader(HttpdConnData *conn, const char *field, const char *val);
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void httpdEndHeaders(HttpdConnData *conn);
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int httpdGetHeader(HttpdConnData *conn, char *header, char *ret, int retLen);
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int httpdSend(HttpdConnData *conn, const char *data, int len);
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void httpdFlushSendBuffer(HttpdConnData *conn);
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//Platform dependent code should call these.
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void httpdSentCb(ConnTypePtr conn, char *remIp, int remPort);
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void httpdRecvCb(ConnTypePtr conn, char *remIp, int remPort, char *data, unsigned short len);
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void httpdDisconCb(ConnTypePtr conn, char *remIp, int remPort);
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int httpdConnectCb(ConnTypePtr conn, char *remIp, int remPort);
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#endif
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