1*9a747e4fSDavid du Colombier #include <u.h> 2*9a747e4fSDavid du Colombier #include <libc.h> 3*9a747e4fSDavid du Colombier #include <bin.h> 4*9a747e4fSDavid du Colombier #include <httpd.h> 5*9a747e4fSDavid du Colombier 6*9a747e4fSDavid du Colombier typedef struct Error Error; 7*9a747e4fSDavid du Colombier 8*9a747e4fSDavid du Colombier struct Error 9*9a747e4fSDavid du Colombier { 10*9a747e4fSDavid du Colombier char *num; 11*9a747e4fSDavid du Colombier char *concise; 12*9a747e4fSDavid du Colombier char *verbose; 13*9a747e4fSDavid du Colombier }; 14*9a747e4fSDavid du Colombier 15*9a747e4fSDavid du Colombier Error errormsg[] = 16*9a747e4fSDavid du Colombier { 17*9a747e4fSDavid du Colombier [HInternal] {"500 Internal Error", "Internal Error", 18*9a747e4fSDavid du Colombier "This server could not process your request due to an internal error."}, 19*9a747e4fSDavid du Colombier [HTempFail] {"500 Internal Error", "Temporary Failure", 20*9a747e4fSDavid du Colombier "The object %s is currently inaccessible.<p>Please try again later."}, 21*9a747e4fSDavid du Colombier [HUnimp] {"501 Not implemented", "Command not implemented", 22*9a747e4fSDavid du Colombier "This server does not implement the %s command."}, 23*9a747e4fSDavid du Colombier [HUnkVers] {"501 Not Implemented", "Unknown http version", 24*9a747e4fSDavid du Colombier "This server does not know how to respond to http version %s."}, 25*9a747e4fSDavid du Colombier [HBadCont] {"501 Not Implemented", "Impossible format", 26*9a747e4fSDavid du Colombier "This server cannot produce %s in any of the formats your client accepts."}, 27*9a747e4fSDavid du Colombier [HBadReq] {"400 Bad Request", "Strange Request", 28*9a747e4fSDavid du Colombier "Your client sent a query that this server could not understand."}, 29*9a747e4fSDavid du Colombier [HSyntax] {"400 Bad Request", "Garbled Syntax", 30*9a747e4fSDavid du Colombier "Your client sent a query with incoherent syntax."}, 31*9a747e4fSDavid du Colombier [HBadSearch] {"400 Bad Request", "Inapplicable Search", 32*9a747e4fSDavid du Colombier "Your client sent a search that cannot be applied to %s."}, 33*9a747e4fSDavid du Colombier [HNotFound] {"404 Not Found", "Object not found", 34*9a747e4fSDavid du Colombier "The object %s does not exist on this server."}, 35*9a747e4fSDavid du Colombier [HNoSearch] {"403 Forbidden", "Search not supported", 36*9a747e4fSDavid du Colombier "The object %s does not support the search command."}, 37*9a747e4fSDavid du Colombier [HNoData] {"403 Forbidden", "No data supplied", 38*9a747e4fSDavid du Colombier "Search or forms data must be supplied to %s."}, 39*9a747e4fSDavid du Colombier [HExpectFail] {"403 Expectation Failed", "Expectation Failed", 40*9a747e4fSDavid du Colombier "This server does not support some of your request's expectations."}, 41*9a747e4fSDavid du Colombier [HUnauth] {"403 Forbidden", "Forbidden", 42*9a747e4fSDavid du Colombier "You are not allowed to see the object %s."}, 43*9a747e4fSDavid du Colombier [HOK] {"200 OK", "everything is fine"}, 44*9a747e4fSDavid du Colombier }; 45*9a747e4fSDavid du Colombier 46*9a747e4fSDavid du Colombier /* 47*9a747e4fSDavid du Colombier * write a failure message to the net and exit 48*9a747e4fSDavid du Colombier */ 49*9a747e4fSDavid du Colombier int 50*9a747e4fSDavid du Colombier hfail(HConnect *c, int reason, ...) 51*9a747e4fSDavid du Colombier { 52*9a747e4fSDavid du Colombier Hio *hout; 53*9a747e4fSDavid du Colombier char makeup[HBufSize]; 54*9a747e4fSDavid du Colombier va_list arg; 55*9a747e4fSDavid du Colombier int n; 56*9a747e4fSDavid du Colombier 57*9a747e4fSDavid du Colombier hout = &c->hout; 58*9a747e4fSDavid du Colombier va_start(arg, reason); 59*9a747e4fSDavid du Colombier vseprint(makeup, makeup+HBufSize, errormsg[reason].verbose, arg); 60*9a747e4fSDavid du Colombier va_end(arg); 61*9a747e4fSDavid du Colombier n = snprint(c->xferbuf, HBufSize, "<head><title>%s</title></head>\n<body><h1>%s</h1>\n%s</body>\n", 62*9a747e4fSDavid du Colombier errormsg[reason].concise, errormsg[reason].concise, makeup); 63*9a747e4fSDavid du Colombier 64*9a747e4fSDavid du Colombier hprint(hout, "%s %s\r\n", hversion, errormsg[reason].num); 65*9a747e4fSDavid du Colombier hprint(hout, "Date: %D\r\n", time(nil)); 66*9a747e4fSDavid du Colombier hprint(hout, "Server: Plan9\r\n"); 67*9a747e4fSDavid du Colombier hprint(hout, "Content-Type: text/html\r\n"); 68*9a747e4fSDavid du Colombier hprint(hout, "Content-Length: %d\r\n", n); 69*9a747e4fSDavid du Colombier if(c->head.closeit) 70*9a747e4fSDavid du Colombier hprint(hout, "Connection: close\r\n"); 71*9a747e4fSDavid du Colombier else if(!http11(c)) 72*9a747e4fSDavid du Colombier hprint(hout, "Connection: Keep-Alive\r\n"); 73*9a747e4fSDavid du Colombier hprint(hout, "\r\n"); 74*9a747e4fSDavid du Colombier 75*9a747e4fSDavid du Colombier if(c->req.meth == nil || strcmp(c->req.meth, "HEAD") != 0) 76*9a747e4fSDavid du Colombier hwrite(hout, c->xferbuf, n); 77*9a747e4fSDavid du Colombier 78*9a747e4fSDavid du Colombier if(c->replog) 79*9a747e4fSDavid du Colombier c->replog(c, "Reply: %s\nReason: %s\n", errormsg[reason].num, errormsg[reason].concise); 80*9a747e4fSDavid du Colombier return hflush(hout); 81*9a747e4fSDavid du Colombier } 82