Annotation of libwww/Library/src/HTDialog.c, revision 2.19
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.
2.19 ! frystyk 6: ** @(#) $Id: HTDialog.c,v 2.20 1996/07/20 00:12:35 frystyk Exp $
2.1 frystyk 7: **
8: ** This module provides a default implementation of the application part
9: ** of the Message and Dialog part or the Library. You do not have to do
10: ** it like this - you can use exactly the model for mapping codes into
11: ** messages as you like
12: **
13: ** Authors
14: ** HFN Henrik Frystyk
15: */
16:
17: /* Library include files */
18: #include "WWWLib.h"
19: #include "WWWApp.h"
2.6 frystyk 20: #include "WWWHTTP.h"
2.1 frystyk 21: #include "HTDialog.h" /* Implemented here */
22:
23: /*
24: ** Dialog Messages
25: */
2.18 frystyk 26: PRIVATE const char * HTDialogs[HT_MSG_ELEMENTS] = {
2.1 frystyk 27: "Please enter username:",
28: "Password:",
29: "Please give name of file to save in:",
30: "Plase enter account:",
2.19 ! frystyk 31: "You might not be allowed to use this method here, continue?",
2.1 frystyk 32: "Location has moved, continue?",
2.17 frystyk 33: "A new set of rules is to be added to your setup - continue?",
34: "This file already exists - replace existing file?",
2.18 frystyk 35: "Authentication failed - retry?",
2.19 ! frystyk 36: "Proxy authentication failed - retry?",
2.18 frystyk 37: "This method has already been performed - repeat operation?",
38: "This document is very big - continue operation?",
39: "The source document for this operation has moved - continue operation with new location?",
40: "The destination document for this operation has moved - continue operation with new location?",
2.19 ! frystyk 41: "A redirection may change the behavior of this method - proceed anyway?"
2.1 frystyk 42: };
43:
44: /*
45: ** All errors that are not strictly HTTP errors but originates from, e.g.,
46: ** the FTP protocol all have element numbers > HTERR_HTTP_CODES_END, i.e.,
47: ** they should be placed after the blank line
48: */
49: typedef struct _HTErrorMessage {
50: int code; /* Error number */
51: char * msg; /* Short explanation */
52: char * url; /* Explaning URL */
53: } HTErrorMessage;
54:
55: PRIVATE HTErrorMessage HTErrors[HTERR_ELEMENTS] = {
56:
57: /* CODE ERROR MESSAGE ERROR URL */
58:
2.15 frystyk 59: { 100, "Continue", "information" },
60: { 101, "Switching Protocols", "information" },
61: { 200, "OK", "success" },
62: { 201, "Created", "success" },
63: { 202, "Accepted", "success" },
64: { 203, "Non-authoritative Information", "success" },
65: { 204, "No Content", "success" },
66: { 205, "Reset Content", "success" },
67: { 206, "Partial Content", "success" },
68: { 300, "Multiple Choices", "redirection" },
69: { 301, "Moved Permanently", "redirection" },
70: { 302, "Moved Temporarily", "redirection" },
71: { 303, "See Other", "redirection" },
72: { 304, "Not Modified", "redirection" },
73: { 305, "Use Proxy", "redirection" },
74: { 400, "Bad Request", "client_error" },
75: { 401, "Unauthorized", "client_error" },
76: { 402, "Payment Required", "client_error" },
77: { 403, "Forbidden", "client_error" },
78: { 404, "Not Found", "client_error" },
79: { 405, "Method Not Allowed", "client_error" },
80: { 406, "Not Acceptable", "client_error" },
81: { 407, "Proxy Authentication Required", "client_error" },
82: { 408, "Request Timeout", "client_error" },
83: { 409, "Conflict", "client_error" },
84: { 410, "Gone", "client_error" },
85: { 411, "Length Required", "client_error" },
86: { 412, "Precondition Failed", "client_error" },
87: { 413, "Request Entity Too Large", "client_error" },
88: { 414, "Request-URI Too Large", "client_error" },
89: { 415, "Unsupported Media Type", "client_error" },
90: { 500, "Internal Server Error", "server_error" },
91: { 501, "Not Implemented", "server_error" },
92: { 502, "Bad Gateway", "server_error" },
93: { 503, "Service Unavailable", "server_error" },
94: { 504, "Gateway Timeout", "server_error" },
95: { 505, "HTTP Version not supported", "server_error" },
96:
97: /* Cache Warnings */
98: { 10, "Response is Stale", "cache" },
99: { 11, "Revalidation Failed", "cache" },
100: { 12, "Disconnected Opeartion", "cache" },
101: { 13, "Heuristic Expiration", "cache" },
102: { 14, "Transformation Applied", "cache" },
103: { 99, "Cache warning", "cache" },
104:
105: /* Non-HTTP Error codes and warnings */
106: { 0, "Can't locate remote host", "internal" },
107: { 0, "No host name found", "internal" },
108: { 0, "No file name found or file not accessible", "internal" },
109: { 0, "FTP-server replies", "internal" },
110: { 0, "FTP-server doesn't reply", "internal" },
111: { 0, "Server timed out", "internal" },
112: { 0, "Gopher-server replies", "internal" },
113: { 0, "Data transfer interrupted", "internal" },
114: { 0, "Connection establishment interrupted", "internal" },
115: { 0, "CSO-server replies", "internal" },
116: { 0, "This is probably a HTTP server 0.9 or less","internal" },
117: { 0, "Bad, Incomplete, or Unknown Response", "internal" },
118: { 0, "Unknown access authentication scheme", "internal" },
119: { 0, "News-server replies", "internal" },
120: { 0, "Trying `ftp://' instead of `file://'", "internal" },
121: { 0, "Too many redirections", "internal" },
2.16 frystyk 122: { 0, "Method not suited for automatic redirection","internal" },
2.15 frystyk 123: { 0, "Premature End Of File", "internal" },
124: { 0, "Response from WAIS Server too Large - Extra lines ignored","internal"},
125: { 0, "WAIS-server doesn't return any data", "internal" },
126: { 0, "Can't connect to WAIS-server", "internal" },
127: { 0, "System replies", "internal" },
128: { 0, "Wrong or unknown access scheme", "internal" },
129: { 0, "Access scheme not allowed in this context", "internal" },
130: { 0, "When you are connected, you can log in", "internal" }
2.1 frystyk 131: };
132:
133: /* ------------------------------------------------------------------------- */
134:
135: PUBLIC BOOL HTProgress (HTRequest * request, HTAlertOpcode op,
2.10 frystyk 136: int msgnum, const char * dfault, void * input,
2.1 frystyk 137: HTAlertPar * reply)
138: {
2.19 ! frystyk 139: if (!request || HTRequest_internal(request)) return NO;
2.1 frystyk 140: switch (op) {
141: case HT_PROG_DNS:
2.9 frystyk 142: HTTrace("Looking up %s\n", input ? (char *) input : "");
2.1 frystyk 143: break;
144:
145: case HT_PROG_CONNECT:
2.9 frystyk 146: HTTrace("Contacting %s\n", input ? (char *) input : "");
2.1 frystyk 147: break;
148:
149: case HT_PROG_ACCEPT:
2.8 eric 150: HTTrace("Waiting for connection...\n");
2.1 frystyk 151: break;
152:
153: case HT_PROG_READ:
154: {
155: long cl = HTAnchor_length(HTRequest_anchor(request));
156: if (cl > 0) {
157: long b_read = HTRequest_bytesRead(request);
158: double pro = (double) b_read/cl*100;
159: char buf[10];
160: HTNumToStr((unsigned long) cl, buf, 10);
2.8 eric 161: HTTrace("Read (%d%% of %s)\n", (int) pro, buf);
2.1 frystyk 162: } else
2.8 eric 163: HTTrace("Reading...\n");
2.1 frystyk 164: }
165: break;
166:
167: case HT_PROG_WRITE:
2.4 frystyk 168: if (HTRequest_isPostWeb(request)) {
169: HTParentAnchor *anchor=HTRequest_anchor(HTRequest_source(request));
170: long cl = HTAnchor_length(anchor);
171: if (cl > 0) {
172: long b_write = HTRequest_bytesWritten(request);
173: double pro = (double) b_write/cl*100;
174: char buf[10];
175: HTNumToStr((unsigned long) cl, buf, 10);
2.8 eric 176: HTTrace("Written (%d%% of %s)\n", (int) pro, buf);
2.4 frystyk 177: } else
2.8 eric 178: HTTrace("Writing...\n");
2.4 frystyk 179: }
2.1 frystyk 180: break;
181:
182: case HT_PROG_DONE:
2.8 eric 183: HTTrace("Finished\n");
2.1 frystyk 184: break;
185:
186: case HT_PROG_WAIT:
2.12 frystyk 187: HTTrace("Waiting for free socket...\n");
2.1 frystyk 188: break;
189:
190: default:
2.8 eric 191: HTTrace("UNKNOWN PROGRESS STATE\n");
2.1 frystyk 192: break;
193: }
194: return YES;
195: }
196:
197: PUBLIC BOOL HTConfirm (HTRequest * request, HTAlertOpcode op,
2.10 frystyk 198: int msgnum, const char * dfault, void * input,
2.1 frystyk 199: HTAlertPar * reply)
200: {
201: char response[4]; /* One more for terminating NULL -- AL */
2.8 eric 202: HTTrace("%s", HTDialogs[msgnum]);
203: if (input) HTTrace(" (%s)", (char *) input);
204: HTTrace(" (y/n) ");
2.1 frystyk 205: #ifndef NO_STDIO
2.2 frystyk 206: if (fgets(response, 4, stdin)) /* get reply, max 3 chars */
2.1 frystyk 207: #endif
2.2 frystyk 208: {
2.1 frystyk 209: char *ptr = response;
210: while (*ptr) {
211: if (*ptr == '\n') {
212: *ptr = '\0';
213: break;
214: }
215: *ptr = TOUPPER(*ptr);
216: ptr++;
217: }
218: return (!strcmp(response, "YES") || !strcmp(response, "Y")) ? YES : NO;
219: }
220: return NO;
221: }
222:
223: /* Prompt for answer and get text back. Reply text is either NULL on
2.10 frystyk 224: ** error or a dynamic string which the caller must HT_FREE.
2.1 frystyk 225: */
226: PUBLIC BOOL HTPrompt (HTRequest * request, HTAlertOpcode op,
2.10 frystyk 227: int msgnum, const char * dfault, void * input,
2.1 frystyk 228: HTAlertPar * reply)
229: {
2.8 eric 230: HTTrace("%s ", HTDialogs[msgnum]);
231: if (input) HTTrace(" (%s) ", (char *) input);
232: if (dfault) HTTrace("(RETURN for [%s]) ", (char *) dfault);
2.1 frystyk 233: if (reply && msgnum>=0) {
234: #ifndef NO_STDIO
2.5 frystyk 235: char buffer[200];
2.1 frystyk 236: if (!fgets(buffer, 200, stdin)) return NO;
237: buffer[strlen(buffer)-1] = '\0'; /* Overwrite newline */
238: if (*buffer)
239: HTAlert_setReplyMessage(reply, buffer);
240: else if (dfault)
241: HTAlert_setReplyMessage(reply, (char *) dfault);
242: else
243: return NO;
244: return YES;
245: #endif
246: }
247: return NO;
248: }
249:
250: /* Prompt for password without echoing the reply. Reply text is
2.10 frystyk 251: ** either NULL on error or a dynamic string which the caller must HT_FREE.
2.1 frystyk 252: */
253: PUBLIC BOOL HTPromptPassword (HTRequest * request, HTAlertOpcode op,
2.10 frystyk 254: int msgnum, const char * dfault, void * input,
2.1 frystyk 255: HTAlertPar * reply)
256: {
257: if (reply && msgnum>=0) {
2.10 frystyk 258: #ifdef HAVE_GETPASS
2.1 frystyk 259: char * pw = (char *) getpass(HTDialogs[msgnum]);
2.2 frystyk 260: if (pw) HTAlert_setReplySecret(reply, pw);
2.1 frystyk 261: return YES;
2.10 frystyk 262: #else
2.11 eric 263: return NO; /* needed for WWW_MSWINDOWS */
2.10 frystyk 264: #endif /* HAVE_GETPASS */
2.1 frystyk 265: }
266: return NO;
267: }
268:
269: /* Username and password
270: ** ---------------------
271: ** Prompt Username and password as an atomic operation
272: */
273: PUBLIC BOOL HTPromptUsernameAndPassword (HTRequest * request, HTAlertOpcode op,
2.10 frystyk 274: int msgnum, const char * dfault,
2.1 frystyk 275: void * input, HTAlertPar * reply)
276: {
277: BOOL status = HTPrompt(request, op, HT_MSG_UID, dfault, input, reply);
278: return status ?
279: HTPromptPassword(request, op, HT_MSG_PW, dfault, input, reply) : NO;
280: }
281:
282: /* HTError_print
283: ** -------------
284: ** Default function that creates an error message using HTAlert() to
285: ** put out the contents of the error_stack messages. Furthermore, the
286: ** error_info structure contains a name of a help file that might be put
287: ** up as a link. This file can then be multi-linguistic.
288: */
289: PUBLIC BOOL HTError_print (HTRequest * request, HTAlertOpcode op,
2.10 frystyk 290: int msgnum, const char * dfault, void * input,
2.1 frystyk 291: HTAlertPar * reply)
292: {
293: HTList *cur = (HTList *) input;
294: HTError *pres;
295: HTErrorShow showmask = HTError_show();
296: HTChunk *msg = NULL;
297: int code;
2.8 eric 298: if (WWWTRACE) HTTrace("HTError..... Generating message\n");
2.1 frystyk 299: if (!request || !cur) return NO;
300: while ((pres = (HTError *) HTList_nextObject(cur))) {
301: int index = HTError_index(pres);
302: if (HTError_doShow(pres)) {
303: if (!msg) {
304: HTSeverity severity = HTError_severity(pres);
2.3 frystyk 305: msg = HTChunk_new(128);
2.1 frystyk 306: if (severity == ERR_WARN)
2.3 frystyk 307: HTChunk_puts(msg, "Warning: ");
2.1 frystyk 308: else if (severity == ERR_NON_FATAL)
2.3 frystyk 309: HTChunk_puts(msg, "Non Fatal Error: ");
2.1 frystyk 310: else if (severity == ERR_FATAL)
2.3 frystyk 311: HTChunk_puts(msg, "Fatal Error: ");
2.1 frystyk 312: else if (severity == ERR_INFO)
2.3 frystyk 313: HTChunk_puts(msg, "Information: ");
2.1 frystyk 314: else {
315: if (WWWTRACE)
2.8 eric 316: HTTrace("HTError..... Unknown Classification of Error (%d)...\n", severity);
2.3 frystyk 317: HTChunk_delete(msg);
2.1 frystyk 318: return NO;
319: }
320:
321: /* Error number */
322: if ((code = HTErrors[index].code) > 0) {
323: char buf[10];
324: sprintf(buf, "%d ", code);
2.3 frystyk 325: HTChunk_puts(msg, buf);
2.1 frystyk 326: }
327: } else
2.3 frystyk 328: HTChunk_puts(msg, "\nReason: ");
329: HTChunk_puts(msg, HTErrors[index].msg); /* Error message */
2.1 frystyk 330:
331: if (showmask & HT_ERR_SHOW_PARS) { /* Error parameters */
332: int length;
333: int cnt;
334: char *pars = (char *) HTError_parameter(pres, &length);
335: if (length && pars) {
2.3 frystyk 336: HTChunk_puts(msg, " (");
2.1 frystyk 337: for (cnt=0; cnt<length; cnt++) {
338: char ch = *(pars+cnt);
339: if (ch < 0x20 || ch >= 0x7F)
2.3 frystyk 340: HTChunk_putc(msg, '#');
2.1 frystyk 341: else
2.3 frystyk 342: HTChunk_putc(msg, ch);
2.1 frystyk 343: }
2.3 frystyk 344: HTChunk_puts(msg, ") ");
2.1 frystyk 345: }
346: }
347:
348: if (showmask & HT_ERR_SHOW_LOCATION) { /* Error Location */
2.3 frystyk 349: HTChunk_puts(msg, "This occured in ");
350: HTChunk_puts(msg, HTError_location(pres));
351: HTChunk_putc(msg, '\n');
2.1 frystyk 352: }
353:
354: /*
355: ** Make sure that we don't get this error more than once even
356: ** if we are keeping the error stack from one request to another
357: */
358: HTError_setIgnore(pres);
359:
360: /* If we only are show the most recent entry then break here */
361: if (showmask & HT_ERR_SHOW_FIRST)
362: break;
363: }
364: }
365: if (msg) {
2.3 frystyk 366: HTChunk_putc(msg, '\n');
2.8 eric 367: HTTrace("WARNING: %s\n", HTChunk_data(msg));
2.3 frystyk 368: HTChunk_delete(msg);
2.1 frystyk 369: }
370: return YES;
371: }
372:
2.6 frystyk 373: /* HTError_response
374: ** ----------------
375: ** Default function that creates an error message using HTAlert() to
376: ** put out the contents of the error_stack messages. Furthermore, the
377: ** error_info structure contains a name of a help file that might be put
378: ** up as a link. This file can then be multi-linguistic.
379: */
380: PUBLIC BOOL HTError_response (HTRequest * request, HTAlertOpcode op,
2.10 frystyk 381: int msgnum, const char * dfault, void * input,
2.6 frystyk 382: HTAlertPar * reply)
383: {
384: HTList * cur = (HTList *) input;
385: HTError * pres;
386: HTErrorShow showmask = HTError_show();
387: HTChunk * msg = NULL;
388: int code;
2.8 eric 389: if (WWWTRACE) HTTrace("HTError..... Generating HTTP response\n");
2.6 frystyk 390: if (!request || !cur || !reply) return NO;
391: while ((pres = (HTError *) HTList_nextObject(cur))) {
392: int index = HTError_index(pres);
393: if (HTError_doShow(pres)) {
394: if (!msg) {
395: msg = HTChunk_new(128);
396: if ((code = HTErrors[index].code) > 0) {
397: char * reason = HTErrors[index].msg;
2.7 frystyk 398: char * buf;
399: if ((buf = (char *) HT_MALLOC(20 + strlen(reason))) == NULL)
400: HT_OUTOFMEM("HTError_response");
2.6 frystyk 401: sprintf(buf,"%s %d %s%c%c",HTTP_VERSION,code,reason,CR,LF);
402: HTAlert_assignReplyMessage(reply, buf);
403: }
404: } else {
405: HTChunk_puts(msg, "\nReason: ");
406: HTChunk_puts(msg, HTErrors[index].msg); /* Error message */
407: }
408:
409: if (showmask & HT_ERR_SHOW_PARS) { /* Error parameters */
410: int length;
411: int cnt;
412: char *pars = (char *) HTError_parameter(pres, &length);
413: if (length && pars) {
414: HTChunk_puts(msg, " (");
415: for (cnt=0; cnt<length; cnt++) {
416: char ch = *(pars+cnt);
417: if (ch < 0x20 || ch >= 0x7F)
418: HTChunk_putc(msg, '#');
419: else
420: HTChunk_putc(msg, ch);
421: }
422: HTChunk_puts(msg, ") ");
423: }
424: }
425:
426: if (showmask & HT_ERR_SHOW_LOCATION) { /* Error Location */
427: HTChunk_puts(msg, "This occured in ");
428: HTChunk_puts(msg, HTError_location(pres));
429: HTChunk_putc(msg, '\n');
430: }
431:
432: /*
433: ** Make sure that we don't get this error more than once even
434: ** if we are keeping the error stack from one request to another
435: */
436: HTError_setIgnore(pres);
437:
438: /* If we only are show the most recent entry then break here */
439: if (showmask & HT_ERR_SHOW_FIRST)
440: break;
441: }
442: }
443: if (msg) {
444: HTChunk_putc(msg, '\n');
445: #if 0
2.8 eric 446: HTTrace("WARNING: %s\n", HTChunk_data(msg));
2.6 frystyk 447: #endif
448: HTChunk_delete(msg);
449: }
450: return YES;
451: }
Webmaster
![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to HTDialog.c CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [Public] / libwww / Library / src