Diff: web-base.c

Revision:

103:91194cc19bbb

Child:

104:40097d08edd5

Child:

105:43ef124233cd

diff -r ce6770cb3488 -r 91194cc19bbb web-base.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web-base.c	Sat Apr 27 09:25:28 2019 +0000
@@ -0,0 +1,218 @@
+#include "web-base.h"
+#include "web-derived.h"
+#include "http.h"
+#include "fault.h"
+#include "led.h"
+#include "mstimer.h"
+
+#define DO_LOGIN            DO_SERVER  +   0
+#define DO_FAVICON          DO_SERVER  +   1
+#define DO_BASE_CSS         DO_SERVER  +   2
+#define DO_NAV_CSS          DO_SERVER  +   3
+#define DO_TRACE_HTML       DO_SERVER  +   4
+#define DO_TRACE_AJAX       DO_SERVER  +   5
+#define DO_TRACE_SCRIPT     DO_SERVER  +   6
+#define DO_CLOCK_HTML       DO_SERVER  +   7
+#define DO_CLOCK_AJAX       DO_SERVER  +   8
+#define DO_CLOCK_SCRIPT     DO_SERVER  +   9
+#define DO_NET_HTML         DO_SERVER  +  10
+#define DO_NET4_HTML        DO_SERVER  +  11
+#define DO_NET4_AJAX        DO_SERVER  +  12
+#define DO_NET4_SCRIPT      DO_SERVER  +  13
+#define DO_NET6_HTML        DO_SERVER  +  14
+#define DO_NET6_AJAX        DO_SERVER  +  15
+#define DO_NET6_SCRIPT      DO_SERVER  +  16
+#define DO_LOG_HTML         DO_SERVER  +  17
+#define DO_FAULT_HTML       DO_SERVER  +  18
+#define DO_FIRMWARE_HTML    DO_SERVER  +  19
+#define DO_FIRMWARE_AJAX    DO_SERVER  +  20
+#define DO_FIRMWARE_SCRIPT  DO_SERVER  +  21
+#define DO_1WIRE_HTML       DO_SERVER  +  22
+#define DO_1WIRE_AJAX       DO_SERVER  +  23
+#define DO_1WIRE_SCRIPT     DO_SERVER  +  24
+#define DO_SEND_SESSION_ID  DO_DERIVED + 100
+
+#define LOGIN_DELAY_MS 200
+
+static int decideWhatToDoFromPath(char *pPath, char* pLastModified)
+{
+    if (HttpSameStr(pPath, "/login"        )) return DO_LOGIN;
+    if (HttpSameStr(pPath, "/clock"        )) return DO_CLOCK_HTML;
+    if (HttpSameStr(pPath, "/clock-ajax"   )) return DO_CLOCK_AJAX;
+    if (HttpSameStr(pPath, "/net"          )) return DO_NET_HTML;
+    if (HttpSameStr(pPath, "/net4"         )) return DO_NET4_HTML;
+    if (HttpSameStr(pPath, "/net4-ajax"    )) return DO_NET4_AJAX;
+    if (HttpSameStr(pPath, "/net6"         )) return DO_NET6_HTML;
+    if (HttpSameStr(pPath, "/net6-ajax"    )) return DO_NET6_AJAX;
+    if (HttpSameStr(pPath, "/log"          )) return DO_LOG_HTML;
+    if (HttpSameStr(pPath, "/trace"        )) return DO_TRACE_HTML;
+    if (HttpSameStr(pPath, "/trace-ajax"   )) return DO_TRACE_AJAX;
+    if (HttpSameStr(pPath, "/fault"        )) return DO_FAULT_HTML;
+    if (HttpSameStr(pPath, "/firmware"     )) return DO_FIRMWARE_HTML;
+    if (HttpSameStr(pPath, "/firmware-ajax")) return DO_FIRMWARE_AJAX;
+#ifdef INCLUDE_1_WIRE
+    if (HttpSameStr(pPath, "/1wire"        )) return DO_1WIRE_HTML;
+    if (HttpSameStr(pPath, "/1wire-ajax"   )) return DO_1WIRE_AJAX;
+#endif
+
+    if (HttpSameStr(pPath, "/favicon.ico"  )) return HttpSameDate(WebFaviconDate,        WebFaviconTime,        pLastModified) ? DO_NOT_MODIFIED : DO_FAVICON;
+    if (HttpSameStr(pPath, "/base.css"     )) return HttpSameDate(WebBaseCssDate,        WebBaseCssTime,        pLastModified) ? DO_NOT_MODIFIED : DO_BASE_CSS;
+    if (HttpSameStr(pPath, "/settings.css" )) return HttpSameDate(WebNavCssDate,         WebNavCssTime,         pLastModified) ? DO_NOT_MODIFIED : DO_NAV_CSS;
+    if (HttpSameStr(pPath, "/net4.js"      )) return HttpSameDate(WebNet4ScriptDate,     WebNet4ScriptTime,     pLastModified) ? DO_NOT_MODIFIED : DO_NET4_SCRIPT;
+    if (HttpSameStr(pPath, "/net6.js"      )) return HttpSameDate(WebNet6ScriptDate,     WebNet6ScriptTime,     pLastModified) ? DO_NOT_MODIFIED : DO_NET6_SCRIPT;
+    if (HttpSameStr(pPath, "/trace.js"     )) return HttpSameDate(WebTraceScriptDate,    WebTraceScriptTime,    pLastModified) ? DO_NOT_MODIFIED : DO_TRACE_SCRIPT;
+    if (HttpSameStr(pPath, "/clock.js"     )) return HttpSameDate(WebClockScriptDate,    WebClockScriptTime,    pLastModified) ? DO_NOT_MODIFIED : DO_CLOCK_SCRIPT;
+    if (HttpSameStr(pPath, "/firmware.js"  )) return HttpSameDate(WebFirmwareScriptDate, WebFirmwareScriptTime, pLastModified) ? DO_NOT_MODIFIED : DO_FIRMWARE_SCRIPT;
+#ifdef INCLUDE_1_WIRE
+    if (HttpSameStr(pPath, "/1wire.js"     )) return HttpSameDate(WebOneWireScriptDate,  WebOneWireScriptTime,  pLastModified) ? DO_NOT_MODIFIED : DO_1WIRE_SCRIPT;
+#endif
+    return WebServerDerivedRequest(pPath, pLastModified);
+}
+static void handleQuery(int todo, char* pQuery)
+{
+    switch (todo)
+    {
+        case DO_LOGIN:         WebLoginQuery   (pQuery); return;
+        case DO_TRACE_AJAX:    WebTraceQuery   (pQuery); return;
+        case DO_CLOCK_AJAX:    WebClockQuery   (pQuery); return;
+        case DO_CLOCK_HTML:    WebClockQuery   (pQuery); return;
+        case DO_LOG_HTML:      WebLogQuery     (pQuery); return;
+        case DO_FAULT_HTML:    WebFaultQuery   (pQuery); return;
+        case DO_FIRMWARE_HTML: WebFirmwareQuery(pQuery); return;
+        case DO_FIRMWARE_AJAX: WebFirmwareQuery(pQuery); return;
+#ifdef INCLUDE_1_WIRE
+        case DO_1WIRE_HTML:    WebOneWireQuery (pQuery); return;
+        case DO_1WIRE_AJAX:    WebOneWireQuery (pQuery); return;
+#endif
+    }
+    WebServerDerivedGet(todo, pQuery);
+}
+static bool handlePost(int todo, int contentLength, int contentStart, int size, char* pRequestStream, uint32_t positionInRequestStream)
+{
+    switch (todo)
+    {
+        case DO_FIRMWARE_AJAX: return WebFirmwarePost(contentLength, contentStart, size, pRequestStream, positionInRequestStream);
+    }
+    return WebServerDerivedPost(todo, contentLength, size, pRequestStream, positionInRequestStream);
+}
+
+static void serverRequest(int size, char* pRequestStream, uint32_t positionInRequestStream, int* pToDo, bool* pPostComplete, uint32_t* pDelayUntil)
+{
+    //Handle request for the first packet of data received but leave todo the same after that.
+    int contentLength = 0;
+    int contentStart  = 0;
+    if (size && positionInRequestStream == 0)
+    {
+        //Read the headers
+        char* pMethod;
+        char* pPath;
+        char* pQuery;
+        char* pLastModified;
+        char* pCookies;
+        contentStart = HttpRequestRead(pRequestStream, size, &pMethod, &pPath, &pQuery, &pLastModified, &pCookies, &contentLength);
+        
+        //Ask the web server what to do
+        *pToDo = decideWhatToDoFromPath(pPath, pLastModified);
+        
+        //If what to do is NOTHING, NOT_FOUND or NOT_MODIFIED then no query or post will be valid so stop now
+        if (*pToDo < DO_SERVER) { *pPostComplete = true; return; }
+        
+        //If what to do is LOGIN then the user has just returned the login form
+        if (*pToDo == DO_LOGIN)
+        {
+            handleQuery(*pToDo, pQuery);                  //Read the password and the original location
+            if (WebLoginQueryPasswordOk)
+            {
+                if (!WebLoginSessionIdIsSet())           //If there isn't a session id already
+                {
+                    WebLoginSessionIdNew();              //Create a new session id
+                }
+                *pToDo =  WebLoginOriginalToDo;          //Load the original todo and SEND_SESSION_ID
+                *pToDo += DO_SEND_SESSION_ID;
+            }
+            *pDelayUntil = MsTimerCount + LOGIN_DELAY_MS; //To prevent brute forcing the hash delay the reply to the login
+            *pPostComplete = true;
+            return;                                       //Either way no query or post will be valid
+        }
+        
+        //Have a normal request so authenticate
+        if (!WebLoginCookiesContainValidSessionId(pCookies))
+        {
+            WebLoginOriginalToDo = *pToDo; //Record the original destination for redirection
+            *pToDo = DO_LOGIN;
+            *pPostComplete = true;
+            return; //Ignore any query or post as the user is not authenticated
+        }
+        
+        //Handle the query
+        handleQuery(*pToDo, pQuery);
+    }
+    
+    //Do the upload of anything that needs it. Todos it doesn't understand are ignored.
+    if (!*pPostComplete) *pPostComplete = handlePost(*pToDo, contentLength, contentStart, size, pRequestStream, positionInRequestStream);
+}
+
+static void serverReply(int todo)
+{
+    //Check if todo includes the need to send a cookie
+    if (todo >= DO_SEND_SESSION_ID)
+    {
+        HttpOkCookieName   = WebLoginSessionNameGet();
+        HttpOkCookieValue  = WebLoginSessionIdGet();
+        HttpOkCookieMaxAge = WebLoginSessionNameLife();
+        todo -= DO_SEND_SESSION_ID;
+    }
+    else
+    {
+        HttpOkCookieName   = NULL;
+        HttpOkCookieValue  = NULL;
+        HttpOkCookieMaxAge = -1;
+    }
+    
+    //Try all the base modules
+    switch (todo)
+    {
+        case DO_NOT_FOUND:       HttpNotFound      (); return;
+        case DO_NOT_MODIFIED:    HttpNotModified   (); return;
+        case DO_LOGIN:           WebLoginHtml     (); return;
+        case DO_FAVICON:         WebFavicon       (); return;
+        case DO_BASE_CSS:        WebBaseCss       (); return;
+        case DO_NAV_CSS:         WebNavCss        (); return;
+        case DO_TRACE_HTML:      WebTraceHtml     (); return;
+        case DO_TRACE_AJAX:      WebTraceAjax     (); return;
+        case DO_TRACE_SCRIPT:    WebTraceScript   (); return;
+        case DO_CLOCK_HTML:      WebClockHtml     (); return;
+        case DO_CLOCK_AJAX:      WebClockAjax     (); return;
+        case DO_CLOCK_SCRIPT:    WebClockScript   (); return;
+        case DO_NET_HTML:        WebNetHtml       (); return;
+        case DO_NET4_HTML:       WebNet4Html      (); return;
+        case DO_NET4_AJAX:       WebNet4Ajax      (); return;
+        case DO_NET4_SCRIPT:     WebNet4Script    (); return;
+        case DO_NET6_HTML:       WebNet6Html      (); return;
+        case DO_NET6_AJAX:       WebNet6Ajax      (); return;
+        case DO_NET6_SCRIPT:     WebNet6Script    (); return;
+        case DO_LOG_HTML:        WebLogHtml       (); return;
+        case DO_FAULT_HTML:      WebFaultHtml     (); return;
+        case DO_FIRMWARE_HTML:   WebFirmwareHtml  (); return;
+        case DO_FIRMWARE_AJAX:   WebFirmwareAjax  (); return;
+        case DO_FIRMWARE_SCRIPT: WebFirmwareScript(); return;
+#ifdef INCLUDE_1_WIRE
+        case DO_1WIRE_HTML:      WebOneWireHtml   (); return;
+        case DO_1WIRE_AJAX:      WebOneWireAjax   (); return;
+        case DO_1WIRE_SCRIPT:    WebOneWireScript (); return;
+#endif
+    }
+    
+    //If not called then call the derived (child) module
+    WebServerDerivedReply(todo);
+}
+
+int WebServerInit()
+{
+    HttpRequestFunction = serverRequest;
+    HttpReplyFunction   = serverReply;
+    
+    WebLoginInit();
+    
+    return 0;
+}