fail.c (2850B)
1 #include <u.h> 2 #include <libc.h> 3 #include <bin.h> 4 #include <httpd.h> 5 6 typedef struct Error Error; 7 8 struct Error 9 { 10 char *num; 11 char *concise; 12 char *verbose; 13 }; 14 15 Error errormsg[] = 16 { 17 /* HInternal */ {"500 Internal Error", "Internal Error", 18 "This server could not process your request due to an internal error."}, 19 /* HTempFail */ {"500 Internal Error", "Temporary Failure", 20 "The object %s is currently inaccessible.<p>Please try again later."}, 21 /* HUnimp */ {"501 Not implemented", "Command not implemented", 22 "This server does not implement the %s command."}, 23 /* HBadReq */ {"400 Bad Request", "Strange Request", 24 "Your client sent a query that this server could not understand."}, 25 /* HBadSearch */ {"400 Bad Request", "Inapplicable Search", 26 "Your client sent a search that cannot be applied to %s."}, 27 /* HNotFound */ {"404 Not Found", "Object not found", 28 "The object %s does not exist on this server."}, 29 /* HUnauth */ {"403 Forbidden", "Forbidden", 30 "You are not allowed to see the object %s."}, 31 /* HSyntax */ {"400 Bad Request", "Garbled Syntax", 32 "Your client sent a query with incoherent syntax."}, 33 /* HNoSearch */ {"403 Forbidden", "Search not supported", 34 "The object %s does not support the search command."}, 35 /* HNoData */ {"403 Forbidden", "No data supplied", 36 "Search or forms data must be supplied to %s."}, 37 /* HExpectFail */ {"403 Expectation Failed", "Expectation Failed", 38 "This server does not support some of your request's expectations."}, 39 /* HUnkVers */ {"501 Not Implemented", "Unknown http version", 40 "This server does not know how to respond to http version %s."}, 41 /* HBadCont */ {"501 Not Implemented", "Impossible format", 42 "This server cannot produce %s in any of the formats your client accepts."}, 43 /* HOK */ {"200 OK", "everything is fine"}, 44 }; 45 46 /* 47 * write a failure message to the net and exit 48 */ 49 int 50 hfail(HConnect *c, int reason, ...) 51 { 52 Hio *hout; 53 char makeup[HBufSize]; 54 va_list arg; 55 int n; 56 57 hout = &c->hout; 58 va_start(arg, reason); 59 vseprint(makeup, makeup+HBufSize, errormsg[reason].verbose, arg); 60 va_end(arg); 61 n = snprint(c->xferbuf, HBufSize, "<head><title>%s</title></head>\n<body><h1>%s</h1>\n%s</body>\n", 62 errormsg[reason].concise, errormsg[reason].concise, makeup); 63 64 hprint(hout, "%s %s\r\n", hversion, errormsg[reason].num); 65 hprint(hout, "Date: %D\r\n", time(nil)); 66 hprint(hout, "Server: Plan9\r\n"); 67 hprint(hout, "Content-Type: text/html\r\n"); 68 hprint(hout, "Content-Length: %d\r\n", n); 69 if(c->head.closeit) 70 hprint(hout, "Connection: close\r\n"); 71 else if(!http11(c)) 72 hprint(hout, "Connection: Keep-Alive\r\n"); 73 hprint(hout, "\r\n"); 74 75 if(c->req.meth == nil || strcmp(c->req.meth, "HEAD") != 0) 76 hwrite(hout, c->xferbuf, n); 77 78 if(c->replog) 79 c->replog(c, "Reply: %s\nReason: %s\n", errormsg[reason].num, errormsg[reason].concise); 80 return hflush(hout); 81 }