updae:
ich habe jetzt einen Code zusammengebastelt, der einigermaßen, aber noch nicht 100%ig funktioniert.
Fürs erste teste ich nur aufs Passwort wegen der Debug-Phase.
ist es völlig falsch, wird es zurückgewiesen, ist es 100% richtig, dann auch angenommen.
Problem aber:
wenn das Pwd zB "12345" ist, und der usr gibt "1234567" ein, wird es auch akzeptiert. Ich kriege nicht raus, wo der Fehler liegt.
Wer weiß wo der Hase im Pfeffer liegt?
Hier erst mal 2 Hilfsfunktionen, um Passwort etc. aus dem html-String rauszufischen (funktioniert ansonsten einwandfrei):
Code:
int16_t strstrpos(char * haystack, char * needle) // find 1st occurance of substr in str
{
char *p = strstr(haystack, needle);
if (p) return p - haystack;
return -1; // Not found = -1.
}
//----------------------------------------------------------------------------
const int MAXLEN = 1024;
const int TOKLEN = 64;
char * cstringarg( char* haystack, char* vname, char* sarg ) {
int i=0, pos=-1;
unsigned char ch=0xff;
char kini[3] = "&"; // start of varname: '&':
char kequ[3] = "="; // end of varname, start of argument: '='
char needle[TOKLEN]=""; // complete pattern: &varname=abc1234
//kequ[0] = '='; // customize
strcpy(sarg,"");
strcpy(needle, kini);
strcat(needle, vname);
strcat(needle, kequ);
pos = strstrpos(haystack, needle);
if(pos==-1) return sarg;
pos=pos+strlen(vname)+2; // start of value = kini+vname+kequ
while( (ch!='&')&&(ch!='\0') ) {
ch=haystack[pos+i];
if( (ch=='&')||(ch==';')||(ch==' ')||(ch=='\0') ||(ch=='\n')
||(i+pos>=strlen(haystack))||(i>TOKLEN-1) ) {
sarg[i]='\0';
return sarg;
}
if( (ch!='&') ) {
sarg[i]=ch;
i++;
}
}
return sarg;
}
und hier jetzt die eigentliche Website, die username und passwort anfordert zum Login:
Code:
char website_uname[20]="abcde"; // website user name
char website_upwd[20]="12345"; // website user pwd
void handleNotAuthorized() {
String readString="";
char strinput[MAXLEN], strupwd[TOKLEN], struname[TOKLEN];
WiFiClient client = wifiserver.available();
//---------------------------------------
strcpy(strinput, "");
strcpy(strupwd, "");
strcpy(struname, "");
while ( client.connected() ) {
if (authorized) return;
readString.toCharArray(strinput, MAXLEN);
// cstringarg( char* haystack, char* vname, char* sarg )
// haystack pattern: &varname=1234abc, delimiters &, \n, \0, SPACE, EOF
cstringarg(strinput, "uname", struname); // uname
cstringarg(strinput, "upwd", strupwd); // upwd
if ( strlen(strupwd) == strlen(website_upwd)
&& strcmp(strupwd, website_upwd ) == 0) {
authorized = true;
readString = "";
return;
}
if ( client.available() ) {
char c = client.read();
//read char by request
if (readString.length() < TOKLEN) {
//store characters to string
readString += c;
//Serial.print(c);
}
//if HTTP request has ended
if (c == '\n') {
client.flush();
Serial.println(readString);
//now output html data header
String script = "";
script += ("HTTP/1.1 401 Log-In Required");
script += ("Content-Type: text/html \n");
script += ("\n"); // do not forget this one //????
script += ("<!DOCTYPE html> \n");
script += ("<html> \n");
script += ("<head> \n");
// utf-8 für "°" Zeichen
script += "<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\"> \n" ;
script += "<title>" ;
script += website_title ;
script += "</title> \n" ;
script += "</head> \n" ;
script += "<body> \n" ;
script += "<h1><p style=\"color:rgb(255,0,191);\"> " + (String)website_url ;
script += (String)": <wbr> <wbr> " + "Not authorized !</p> </h1> \n" ;
script += ("<h2><p style=\"color:rgb(255,0,191);\"> log in to proceed: </p> </h2> \n");
script += ("<FORM ACTION='/' method=GET > \n");
script += ("<h2>user name: <INPUT TYPE=text NAME='uname' VALUE='' MAXLENGTH='50'> </h2> \n");
script += ("<h2>password : <INPUT TYPE=PASSWORD NAME='upwd' VALUE='' MAXLENGTH='50'> </h2> \n");
script += ("<h2><INPUT TYPE=SUBMIT></h2> \n");
script += ("</FORM> \n");
script += ("<BR> \n");
script += ("</body> \n");
script += ("</html> \n");
client.print(script);
//stopping client
client.stop();
delay(1);
//clearing string for next read
readString = "";
}
}
delay(1);
}
}
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Zitat von Moppi
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