Annotation of libwww/Library/src/HTDialog.c, revision 2.1
2.1 ! frystyk 1: /* HTDialog.c
! 2: ** MESSAGES AND DIALOGS
! 3: **
! 4: ** (c) COPYRIGHT MIT 1995.
! 5: ** Please first read the full copyright statement in the file COPYRIGH.
! 6: **
! 7: ** This module provides a default implementation of the application part
! 8: ** of the Message and Dialog part or the Library. You do not have to do
! 9: ** it like this - you can use exactly the model for mapping codes into
! 10: ** messages as you like
! 11: **
! 12: ** Authors
! 13: ** HFN Henrik Frystyk
! 14: */
! 15:
! 16: /* Library include files */
! 17: #include "WWWLib.h"
! 18: #include "WWWApp.h"
! 19: #include "HTReqMan.h"
! 20: #include "HTDialog.h" /* Implemented here */
! 21:
! 22: /*
! 23: ** Dialog Messages
! 24: */
! 25: PRIVATE char *HTDialogs[HT_MSG_ELEMENTS] = {
! 26: "Please enter username:",
! 27: "Password:",
! 28: "Please give name of file to save in:",
! 29: "Plase enter account:",
! 30: "It might not be allowed to use this method, continue?",
! 31: "Location has moved, continue?",
! 32: "A new set of rules is to be added to your setup - continue?"
! 33: };
! 34:
! 35: /*
! 36: ** All errors that are not strictly HTTP errors but originates from, e.g.,
! 37: ** the FTP protocol all have element numbers > HTERR_HTTP_CODES_END, i.e.,
! 38: ** they should be placed after the blank line
! 39: */
! 40: typedef struct _HTErrorMessage {
! 41: int code; /* Error number */
! 42: char * msg; /* Short explanation */
! 43: char * url; /* Explaning URL */
! 44: } HTErrorMessage;
! 45:
! 46: PRIVATE HTErrorMessage HTErrors[HTERR_ELEMENTS] = {
! 47:
! 48: /* CODE ERROR MESSAGE ERROR URL */
! 49:
! 50: { 200, "OK", "ok" },
! 51: { 201, "Created", "created" },
! 52: { 202, "Accepted", "accepted" },
! 53: { 203, "Provisional Information", "partial" },
! 54: { 204, "No Content", "no_response" },
! 55: { 301, "Moved Permanently", "moved" },
! 56: { 302, "Moved Temporarily", "moved" },
! 57: { 303, "Method", "method" },
! 58: { 304, "Not Modified", "not_modified" },
! 59: { 400, "Bad Request", "bad_request" },
! 60: { 401, "Unauthorized", "unauthorized" },
! 61: { 402, "Payment Required", "payment" },
! 62: { 403, "Forbidden", "forbidden" },
! 63: { 404, "Not Found", "not_found" },
! 64: { 405, "Method Not Allowed", "method" },
! 65: { 406, "None Acceptable", "none" },
! 66: { 407, "Proxy Authentication Required", "proxy" },
! 67: { 408, "Request Timeout", "timeout" },
! 68: { 500, "Internal Server Error", "internal" },
! 69: { 501, "Not Implemented", "not_made" },
! 70: { 502, "Bad Gateway", "bad_gate" },
! 71: { 503, "Service Unavailable", "unavailable" },
! 72: { 504, "Gateway Timeout", "timeout" },
! 73: { 0, "-------------------------", "----------------------------------" },
! 74: { 0, "Can't locate remote host", "host" },
! 75: { 0, "No host name found", "host" },
! 76: { 0, "No file name found or file not accessible", "file" },
! 77: { 0, "FTP-server replies", "ftp" },
! 78: { 0, "FTP-server doesn't reply", "no_server" },
! 79: { 0, "Server timed out", "time_out" },
! 80: { 0, "Gopher-server replies", "gopher" },
! 81: { 0, "Data transfer interrupted", "interrupt" },
! 82: { 0, "Connection establishment interrupted", "interrupt" },
! 83: { 0, "CSO-server replies", "cso" },
! 84: { 0, "This is probably a HTTP server 0.9 or less","http_version" },
! 85: { 0, "Bad, Incomplete, or Unknown Response", "bad_reply" },
! 86: { 0, "Unknown access authentication scheme", "control" },
! 87: { 0, "News-server replies", "news" },
! 88: { 0, "Trying `ftp://' instead of `file://'", "ftpfile" },
! 89: { 0, "Too many redirections", "redirections" },
! 90: { 0, "Premature End Of File", "EOF" },
! 91: { 0, "Response from WAIS Server too Large - Extra lines ignored",
! 92: "wais" },
! 93: { 0, "WAIS-server doesn't return any data", "wais" },
! 94: { 0, "Can't connect to WAIS-server", "wais" },
! 95: { 0, "System replies", "system" },
! 96: { 0, "Wrong or unknown access scheme", "class" },
! 97: { 0, "Access scheme not allowed in this context", "class" },
! 98: { 0, "When you are connected, you can log in", "telnet" }
! 99: };
! 100:
! 101: /* ------------------------------------------------------------------------- */
! 102:
! 103: PUBLIC BOOL HTProgress (HTRequest * request, HTAlertOpcode op,
! 104: int msgnum, CONST char * dfault, void * input,
! 105: HTAlertPar * reply)
! 106: {
! 107: if (!request) {
! 108: if (WWWTRACE) TTYPrint(TDEST, "HTProgress.. Bad argument\n");
! 109: return NO;
! 110: }
! 111: switch (op) {
! 112: case HT_PROG_DNS:
! 113: TTYPrint(TDEST, "Looking up %s\n", (char *) input);
! 114: break;
! 115:
! 116: case HT_PROG_CONNECT:
! 117: TTYPrint(TDEST, "Contacting host...\n");
! 118: break;
! 119:
! 120: case HT_PROG_ACCEPT:
! 121: TTYPrint(TDEST, "Waiting for connection...\n");
! 122: break;
! 123:
! 124: case HT_PROG_READ:
! 125: {
! 126: long cl = HTAnchor_length(HTRequest_anchor(request));
! 127: if (cl > 0) {
! 128: long b_read = HTRequest_bytesRead(request);
! 129: double pro = (double) b_read/cl*100;
! 130: char buf[10];
! 131: HTNumToStr((unsigned long) cl, buf, 10);
! 132: TTYPrint(TDEST, "Read (%d%% of %s)\n", (int) pro, buf);
! 133: } else
! 134: TTYPrint(TDEST, "Reading...\n");
! 135: }
! 136: break;
! 137:
! 138: case HT_PROG_WRITE:
! 139: TTYPrint(TDEST, "Writing...\n");
! 140: break;
! 141:
! 142: case HT_PROG_DONE:
! 143: TTYPrint(TDEST, "Finished\n");
! 144: break;
! 145:
! 146: case HT_PROG_WAIT:
! 147: TTYPrint(TDEST, "Waiting for free socket...\n");
! 148: break;
! 149:
! 150: default:
! 151: TTYPrint(TDEST, "UNKNOWN PROGRESS STATE\n");
! 152: break;
! 153: }
! 154: return YES;
! 155: }
! 156:
! 157: PUBLIC BOOL HTConfirm (HTRequest * request, HTAlertOpcode op,
! 158: int msgnum, CONST char * dfault, void * input,
! 159: HTAlertPar * reply)
! 160: {
! 161: char response[4]; /* One more for terminating NULL -- AL */
! 162: TTYPrint(TDEST, "%s", HTDialogs[msgnum]);
! 163: if (input) TTYPrint(TDEST, " (%s)", (char *) input);
! 164: TTYPrint(TDEST, " (y/n) ");
! 165: #ifndef NO_STDIO
! 166: if (fgets(response, 4, stdin)) { /* get reply, max 3 chars */
! 167: #endif
! 168: char *ptr = response;
! 169: while (*ptr) {
! 170: if (*ptr == '\n') {
! 171: *ptr = '\0';
! 172: break;
! 173: }
! 174: *ptr = TOUPPER(*ptr);
! 175: ptr++;
! 176: }
! 177: return (!strcmp(response, "YES") || !strcmp(response, "Y")) ? YES : NO;
! 178: }
! 179: return NO;
! 180: }
! 181:
! 182: /* Prompt for answer and get text back. Reply text is either NULL on
! 183: ** error or a dynamic string which the caller must free.
! 184: */
! 185: PUBLIC BOOL HTPrompt (HTRequest * request, HTAlertOpcode op,
! 186: int msgnum, CONST char * dfault, void * input,
! 187: HTAlertPar * reply)
! 188: {
! 189: char buffer[200];
! 190: TTYPrint(TDEST, "%s ", HTDialogs[msgnum]);
! 191: if (input) TTYPrint(TDEST, " (%s) ", (char *) input);
! 192: if (dfault) TTYPrint(TDEST, "(RETURN for [%s]) ", (char *) dfault);
! 193: if (reply && msgnum>=0) {
! 194: #ifndef NO_STDIO
! 195: if (!fgets(buffer, 200, stdin)) return NO;
! 196: buffer[strlen(buffer)-1] = '\0'; /* Overwrite newline */
! 197: if (*buffer)
! 198: HTAlert_setReplyMessage(reply, buffer);
! 199: else if (dfault)
! 200: HTAlert_setReplyMessage(reply, (char *) dfault);
! 201: else
! 202: return NO;
! 203: return YES;
! 204: #endif
! 205: }
! 206: return NO;
! 207: }
! 208:
! 209: /* Prompt for password without echoing the reply. Reply text is
! 210: ** either NULL on error or a dynamic string which the caller must free.
! 211: */
! 212: PUBLIC BOOL HTPromptPassword (HTRequest * request, HTAlertOpcode op,
! 213: int msgnum, CONST char * dfault, void * input,
! 214: HTAlertPar * reply)
! 215: {
! 216: if (reply && msgnum>=0) {
! 217: #ifndef NO_PASSWD
! 218: char * pw = (char *) getpass(HTDialogs[msgnum]);
! 219: if (pw) HTAlert_setReplyMessage(reply, pw);
! 220: return YES;
! 221: #endif
! 222: }
! 223: return NO;
! 224: }
! 225:
! 226: /* Username and password
! 227: ** ---------------------
! 228: ** Prompt Username and password as an atomic operation
! 229: */
! 230: PUBLIC BOOL HTPromptUsernameAndPassword (HTRequest * request, HTAlertOpcode op,
! 231: int msgnum, CONST char * dfault,
! 232: void * input, HTAlertPar * reply)
! 233: {
! 234: BOOL status = HTPrompt(request, op, HT_MSG_UID, dfault, input, reply);
! 235: return status ?
! 236: HTPromptPassword(request, op, HT_MSG_PW, dfault, input, reply) : NO;
! 237: }
! 238:
! 239: /* HTError_print
! 240: ** -------------
! 241: ** Default function that creates an error message using HTAlert() to
! 242: ** put out the contents of the error_stack messages. Furthermore, the
! 243: ** error_info structure contains a name of a help file that might be put
! 244: ** up as a link. This file can then be multi-linguistic.
! 245: */
! 246: PUBLIC BOOL HTError_print (HTRequest * request, HTAlertOpcode op,
! 247: int msgnum, CONST char * dfault, void * input,
! 248: HTAlertPar * reply)
! 249: {
! 250: HTList *cur = (HTList *) input;
! 251: HTError *pres;
! 252: HTErrorShow showmask = HTError_show();
! 253: HTChunk *msg = NULL;
! 254: int code;
! 255: if (WWWTRACE) TTYPrint(TDEST, "HTError..... Generating message\n");
! 256: if (!request || !cur) return NO;
! 257: while ((pres = (HTError *) HTList_nextObject(cur))) {
! 258: int index = HTError_index(pres);
! 259: if (HTError_doShow(pres)) {
! 260: if (!msg) {
! 261: HTSeverity severity = HTError_severity(pres);
! 262: msg = HTChunkCreate(128);
! 263: if (severity == ERR_WARN)
! 264: HTChunkPuts(msg, "Warning: ");
! 265: else if (severity == ERR_NON_FATAL)
! 266: HTChunkPuts(msg, "Non Fatal Error: ");
! 267: else if (severity == ERR_FATAL)
! 268: HTChunkPuts(msg, "Fatal Error: ");
! 269: else if (severity == ERR_INFO)
! 270: HTChunkPuts(msg, "Information: ");
! 271: else {
! 272: if (WWWTRACE)
! 273: TTYPrint(TDEST, "HTError..... Unknown Classification of Error (%d)...\n", severity);
! 274: HTChunkFree(msg);
! 275: return NO;
! 276: }
! 277:
! 278: /* Error number */
! 279: if ((code = HTErrors[index].code) > 0) {
! 280: char buf[10];
! 281: sprintf(buf, "%d ", code);
! 282: HTChunkPuts(msg, buf);
! 283: }
! 284: } else
! 285: HTChunkPuts(msg, "\nReason: ");
! 286: HTChunkPuts(msg, HTErrors[index].msg); /* Error message */
! 287:
! 288: if (showmask & HT_ERR_SHOW_PARS) { /* Error parameters */
! 289: int length;
! 290: int cnt;
! 291: char *pars = (char *) HTError_parameter(pres, &length);
! 292: if (length && pars) {
! 293: HTChunkPuts(msg, " (");
! 294: for (cnt=0; cnt<length; cnt++) {
! 295: char ch = *(pars+cnt);
! 296: if (ch < 0x20 || ch >= 0x7F)
! 297: HTChunkPutc(msg, '#');
! 298: else
! 299: HTChunkPutc(msg, ch);
! 300: }
! 301: HTChunkPuts(msg, ") ");
! 302: }
! 303: }
! 304:
! 305: if (showmask & HT_ERR_SHOW_LOCATION) { /* Error Location */
! 306: HTChunkPuts(msg, "This occured in ");
! 307: HTChunkPuts(msg, HTError_location(pres));
! 308: HTChunkPutc(msg, '\n');
! 309: }
! 310:
! 311: /*
! 312: ** Make sure that we don't get this error more than once even
! 313: ** if we are keeping the error stack from one request to another
! 314: */
! 315: HTError_setIgnore(pres);
! 316:
! 317: /* If we only are show the most recent entry then break here */
! 318: if (showmask & HT_ERR_SHOW_FIRST)
! 319: break;
! 320: }
! 321: }
! 322: if (msg) {
! 323: HTChunkPutc(msg, '\n');
! 324: TTYPrint(TDEST, "WARNING: %s\n", HTChunkData(msg));
! 325: HTChunkFree(msg);
! 326: }
! 327: return YES;
! 328: }
! 329:
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