Annotation of libwww/Library/src/HTDialog.c, revision 2.22
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.
2.22 ! frystyk 6: ** @(#) $Id: HTDialog.c,v 2.21 1996/08/08 16:40:54 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:",
2.20 frystyk 28: "Please enter username for proxy authentication:",
2.21 frystyk 29: "Please enter username for this FTP server:",
2.1 frystyk 30: "Password:",
31: "Please give name of file to save in:",
32: "Plase enter account:",
2.19 frystyk 33: "You might not be allowed to use this method here, continue?",
2.1 frystyk 34: "Location has moved, continue?",
2.17 frystyk 35: "A new set of rules is to be added to your setup - continue?",
36: "This file already exists - replace existing file?",
2.18 frystyk 37: "Authentication failed - retry?",
2.19 frystyk 38: "Proxy authentication failed - retry?",
2.18 frystyk 39: "This method has already been performed - repeat operation?",
40: "This document is very big - continue operation?",
41: "The source document for this operation has moved - continue operation with new location?",
42: "The destination document for this operation has moved - continue operation with new location?",
2.19 frystyk 43: "A redirection may change the behavior of this method - proceed anyway?"
2.1 frystyk 44: };
45:
46: /*
47: ** All errors that are not strictly HTTP errors but originates from, e.g.,
48: ** the FTP protocol all have element numbers > HTERR_HTTP_CODES_END, i.e.,
49: ** they should be placed after the blank line
50: */
51: typedef struct _HTErrorMessage {
52: int code; /* Error number */
53: char * msg; /* Short explanation */
54: char * url; /* Explaning URL */
55: } HTErrorMessage;
56:
57: PRIVATE HTErrorMessage HTErrors[HTERR_ELEMENTS] = {
58:
59: /* CODE ERROR MESSAGE ERROR URL */
60:
2.15 frystyk 61: { 100, "Continue", "information" },
62: { 101, "Switching Protocols", "information" },
63: { 200, "OK", "success" },
64: { 201, "Created", "success" },
65: { 202, "Accepted", "success" },
66: { 203, "Non-authoritative Information", "success" },
67: { 204, "No Content", "success" },
68: { 205, "Reset Content", "success" },
69: { 206, "Partial Content", "success" },
70: { 300, "Multiple Choices", "redirection" },
71: { 301, "Moved Permanently", "redirection" },
72: { 302, "Moved Temporarily", "redirection" },
73: { 303, "See Other", "redirection" },
74: { 304, "Not Modified", "redirection" },
75: { 305, "Use Proxy", "redirection" },
76: { 400, "Bad Request", "client_error" },
77: { 401, "Unauthorized", "client_error" },
78: { 402, "Payment Required", "client_error" },
79: { 403, "Forbidden", "client_error" },
80: { 404, "Not Found", "client_error" },
81: { 405, "Method Not Allowed", "client_error" },
82: { 406, "Not Acceptable", "client_error" },
83: { 407, "Proxy Authentication Required", "client_error" },
84: { 408, "Request Timeout", "client_error" },
85: { 409, "Conflict", "client_error" },
86: { 410, "Gone", "client_error" },
87: { 411, "Length Required", "client_error" },
88: { 412, "Precondition Failed", "client_error" },
89: { 413, "Request Entity Too Large", "client_error" },
90: { 414, "Request-URI Too Large", "client_error" },
91: { 415, "Unsupported Media Type", "client_error" },
92: { 500, "Internal Server Error", "server_error" },
93: { 501, "Not Implemented", "server_error" },
94: { 502, "Bad Gateway", "server_error" },
95: { 503, "Service Unavailable", "server_error" },
96: { 504, "Gateway Timeout", "server_error" },
97: { 505, "HTTP Version not supported", "server_error" },
98:
99: /* Cache Warnings */
100: { 10, "Response is Stale", "cache" },
101: { 11, "Revalidation Failed", "cache" },
102: { 12, "Disconnected Opeartion", "cache" },
103: { 13, "Heuristic Expiration", "cache" },
104: { 14, "Transformation Applied", "cache" },
105: { 99, "Cache warning", "cache" },
106:
107: /* Non-HTTP Error codes and warnings */
108: { 0, "Can't locate remote host", "internal" },
109: { 0, "No host name found", "internal" },
110: { 0, "No file name found or file not accessible", "internal" },
111: { 0, "FTP-server replies", "internal" },
112: { 0, "FTP-server doesn't reply", "internal" },
113: { 0, "Server timed out", "internal" },
114: { 0, "Gopher-server replies", "internal" },
115: { 0, "Data transfer interrupted", "internal" },
116: { 0, "Connection establishment interrupted", "internal" },
117: { 0, "CSO-server replies", "internal" },
118: { 0, "This is probably a HTTP server 0.9 or less","internal" },
119: { 0, "Bad, Incomplete, or Unknown Response", "internal" },
120: { 0, "Unknown access authentication scheme", "internal" },
121: { 0, "News-server replies", "internal" },
122: { 0, "Trying `ftp://' instead of `file://'", "internal" },
123: { 0, "Too many redirections", "internal" },
2.16 frystyk 124: { 0, "Method not suited for automatic redirection","internal" },
2.15 frystyk 125: { 0, "Premature End Of File", "internal" },
126: { 0, "Response from WAIS Server too Large - Extra lines ignored","internal"},
127: { 0, "WAIS-server doesn't return any data", "internal" },
128: { 0, "Can't connect to WAIS-server", "internal" },
129: { 0, "System replies", "internal" },
130: { 0, "Wrong or unknown access scheme", "internal" },
131: { 0, "Access scheme not allowed in this context", "internal" },
132: { 0, "When you are connected, you can log in", "internal" }
2.1 frystyk 133: };
134:
135: /* ------------------------------------------------------------------------- */
136:
137: PUBLIC BOOL HTProgress (HTRequest * request, HTAlertOpcode op,
2.10 frystyk 138: int msgnum, const char * dfault, void * input,
2.1 frystyk 139: HTAlertPar * reply)
140: {
2.19 frystyk 141: if (!request || HTRequest_internal(request)) return NO;
2.1 frystyk 142: switch (op) {
143: case HT_PROG_DNS:
2.9 frystyk 144: HTTrace("Looking up %s\n", input ? (char *) input : "");
2.1 frystyk 145: break;
146:
147: case HT_PROG_CONNECT:
2.9 frystyk 148: HTTrace("Contacting %s\n", input ? (char *) input : "");
2.1 frystyk 149: break;
150:
151: case HT_PROG_ACCEPT:
2.8 eric 152: HTTrace("Waiting for connection...\n");
2.1 frystyk 153: break;
154:
155: case HT_PROG_READ:
156: {
157: long cl = HTAnchor_length(HTRequest_anchor(request));
158: if (cl > 0) {
159: long b_read = HTRequest_bytesRead(request);
160: double pro = (double) b_read/cl*100;
161: char buf[10];
162: HTNumToStr((unsigned long) cl, buf, 10);
2.8 eric 163: HTTrace("Read (%d%% of %s)\n", (int) pro, buf);
2.1 frystyk 164: } else
2.8 eric 165: HTTrace("Reading...\n");
2.1 frystyk 166: }
167: break;
168:
169: case HT_PROG_WRITE:
2.4 frystyk 170: if (HTRequest_isPostWeb(request)) {
171: HTParentAnchor *anchor=HTRequest_anchor(HTRequest_source(request));
172: long cl = HTAnchor_length(anchor);
173: if (cl > 0) {
174: long b_write = HTRequest_bytesWritten(request);
175: double pro = (double) b_write/cl*100;
176: char buf[10];
177: HTNumToStr((unsigned long) cl, buf, 10);
2.8 eric 178: HTTrace("Written (%d%% of %s)\n", (int) pro, buf);
2.4 frystyk 179: } else
2.8 eric 180: HTTrace("Writing...\n");
2.4 frystyk 181: }
2.1 frystyk 182: break;
183:
184: case HT_PROG_DONE:
2.22 ! frystyk 185: HTTrace("Connection closed\n");
2.1 frystyk 186: break;
187:
188: case HT_PROG_WAIT:
2.12 frystyk 189: HTTrace("Waiting for free socket...\n");
2.1 frystyk 190: break;
191:
192: default:
2.8 eric 193: HTTrace("UNKNOWN PROGRESS STATE\n");
2.1 frystyk 194: break;
195: }
196: return YES;
197: }
198:
199: PUBLIC BOOL HTConfirm (HTRequest * request, HTAlertOpcode op,
2.10 frystyk 200: int msgnum, const char * dfault, void * input,
2.1 frystyk 201: HTAlertPar * reply)
202: {
203: char response[4]; /* One more for terminating NULL -- AL */
2.8 eric 204: HTTrace("%s", HTDialogs[msgnum]);
205: if (input) HTTrace(" (%s)", (char *) input);
206: HTTrace(" (y/n) ");
2.1 frystyk 207: #ifndef NO_STDIO
2.2 frystyk 208: if (fgets(response, 4, stdin)) /* get reply, max 3 chars */
2.1 frystyk 209: #endif
2.2 frystyk 210: {
2.1 frystyk 211: char *ptr = response;
212: while (*ptr) {
213: if (*ptr == '\n') {
214: *ptr = '\0';
215: break;
216: }
217: *ptr = TOUPPER(*ptr);
218: ptr++;
219: }
220: return (!strcmp(response, "YES") || !strcmp(response, "Y")) ? YES : NO;
221: }
222: return NO;
223: }
224:
225: /* Prompt for answer and get text back. Reply text is either NULL on
2.10 frystyk 226: ** error or a dynamic string which the caller must HT_FREE.
2.1 frystyk 227: */
228: PUBLIC BOOL HTPrompt (HTRequest * request, HTAlertOpcode op,
2.10 frystyk 229: int msgnum, const char * dfault, void * input,
2.1 frystyk 230: HTAlertPar * reply)
231: {
2.8 eric 232: HTTrace("%s ", HTDialogs[msgnum]);
233: if (input) HTTrace(" (%s) ", (char *) input);
234: if (dfault) HTTrace("(RETURN for [%s]) ", (char *) dfault);
2.1 frystyk 235: if (reply && msgnum>=0) {
236: #ifndef NO_STDIO
2.5 frystyk 237: char buffer[200];
2.1 frystyk 238: if (!fgets(buffer, 200, stdin)) return NO;
239: buffer[strlen(buffer)-1] = '\0'; /* Overwrite newline */
240: if (*buffer)
241: HTAlert_setReplyMessage(reply, buffer);
242: else if (dfault)
243: HTAlert_setReplyMessage(reply, (char *) dfault);
244: else
245: return NO;
246: return YES;
247: #endif
248: }
249: return NO;
250: }
251:
252: /* Prompt for password without echoing the reply. Reply text is
2.10 frystyk 253: ** either NULL on error or a dynamic string which the caller must HT_FREE.
2.1 frystyk 254: */
255: PUBLIC BOOL HTPromptPassword (HTRequest * request, HTAlertOpcode op,
2.10 frystyk 256: int msgnum, const char * dfault, void * input,
2.1 frystyk 257: HTAlertPar * reply)
258: {
259: if (reply && msgnum>=0) {
2.10 frystyk 260: #ifdef HAVE_GETPASS
2.1 frystyk 261: char * pw = (char *) getpass(HTDialogs[msgnum]);
2.2 frystyk 262: if (pw) HTAlert_setReplySecret(reply, pw);
2.1 frystyk 263: return YES;
2.10 frystyk 264: #else
2.11 eric 265: return NO; /* needed for WWW_MSWINDOWS */
2.10 frystyk 266: #endif /* HAVE_GETPASS */
2.1 frystyk 267: }
268: return NO;
269: }
270:
271: /* Username and password
272: ** ---------------------
273: ** Prompt Username and password as an atomic operation
274: */
275: PUBLIC BOOL HTPromptUsernameAndPassword (HTRequest * request, HTAlertOpcode op,
2.10 frystyk 276: int msgnum, const char * dfault,
2.1 frystyk 277: void * input, HTAlertPar * reply)
278: {
2.21 frystyk 279: BOOL status = HTPrompt(request, op, msgnum, dfault, input, reply);
2.1 frystyk 280: return status ?
281: HTPromptPassword(request, op, HT_MSG_PW, dfault, input, reply) : NO;
282: }
283:
284: /* HTError_print
285: ** -------------
286: ** Default function that creates an error message using HTAlert() to
287: ** put out the contents of the error_stack messages. Furthermore, the
288: ** error_info structure contains a name of a help file that might be put
289: ** up as a link. This file can then be multi-linguistic.
290: */
291: PUBLIC BOOL HTError_print (HTRequest * request, HTAlertOpcode op,
2.10 frystyk 292: int msgnum, const char * dfault, void * input,
2.1 frystyk 293: HTAlertPar * reply)
294: {
295: HTList *cur = (HTList *) input;
296: HTError *pres;
297: HTErrorShow showmask = HTError_show();
298: HTChunk *msg = NULL;
299: int code;
2.8 eric 300: if (WWWTRACE) HTTrace("HTError..... Generating message\n");
2.1 frystyk 301: if (!request || !cur) return NO;
302: while ((pres = (HTError *) HTList_nextObject(cur))) {
303: int index = HTError_index(pres);
304: if (HTError_doShow(pres)) {
305: if (!msg) {
306: HTSeverity severity = HTError_severity(pres);
2.3 frystyk 307: msg = HTChunk_new(128);
2.1 frystyk 308: if (severity == ERR_WARN)
2.3 frystyk 309: HTChunk_puts(msg, "Warning: ");
2.1 frystyk 310: else if (severity == ERR_NON_FATAL)
2.3 frystyk 311: HTChunk_puts(msg, "Non Fatal Error: ");
2.1 frystyk 312: else if (severity == ERR_FATAL)
2.3 frystyk 313: HTChunk_puts(msg, "Fatal Error: ");
2.1 frystyk 314: else if (severity == ERR_INFO)
2.3 frystyk 315: HTChunk_puts(msg, "Information: ");
2.1 frystyk 316: else {
317: if (WWWTRACE)
2.8 eric 318: HTTrace("HTError..... Unknown Classification of Error (%d)...\n", severity);
2.3 frystyk 319: HTChunk_delete(msg);
2.1 frystyk 320: return NO;
321: }
322:
323: /* Error number */
324: if ((code = HTErrors[index].code) > 0) {
325: char buf[10];
326: sprintf(buf, "%d ", code);
2.3 frystyk 327: HTChunk_puts(msg, buf);
2.1 frystyk 328: }
329: } else
2.3 frystyk 330: HTChunk_puts(msg, "\nReason: ");
331: HTChunk_puts(msg, HTErrors[index].msg); /* Error message */
2.1 frystyk 332:
333: if (showmask & HT_ERR_SHOW_PARS) { /* Error parameters */
334: int length;
335: int cnt;
336: char *pars = (char *) HTError_parameter(pres, &length);
337: if (length && pars) {
2.3 frystyk 338: HTChunk_puts(msg, " (");
2.1 frystyk 339: for (cnt=0; cnt<length; cnt++) {
340: char ch = *(pars+cnt);
341: if (ch < 0x20 || ch >= 0x7F)
2.3 frystyk 342: HTChunk_putc(msg, '#');
2.1 frystyk 343: else
2.3 frystyk 344: HTChunk_putc(msg, ch);
2.1 frystyk 345: }
2.3 frystyk 346: HTChunk_puts(msg, ") ");
2.1 frystyk 347: }
348: }
349:
350: if (showmask & HT_ERR_SHOW_LOCATION) { /* Error Location */
2.3 frystyk 351: HTChunk_puts(msg, "This occured in ");
352: HTChunk_puts(msg, HTError_location(pres));
353: HTChunk_putc(msg, '\n');
2.1 frystyk 354: }
355:
356: /*
357: ** Make sure that we don't get this error more than once even
358: ** if we are keeping the error stack from one request to another
359: */
360: HTError_setIgnore(pres);
361:
362: /* If we only are show the most recent entry then break here */
363: if (showmask & HT_ERR_SHOW_FIRST)
364: break;
365: }
366: }
367: if (msg) {
2.3 frystyk 368: HTChunk_putc(msg, '\n');
2.8 eric 369: HTTrace("WARNING: %s\n", HTChunk_data(msg));
2.3 frystyk 370: HTChunk_delete(msg);
2.1 frystyk 371: }
372: return YES;
373: }
374:
2.6 frystyk 375: /* HTError_response
376: ** ----------------
377: ** Default function that creates an error message using HTAlert() to
378: ** put out the contents of the error_stack messages. Furthermore, the
379: ** error_info structure contains a name of a help file that might be put
380: ** up as a link. This file can then be multi-linguistic.
381: */
382: PUBLIC BOOL HTError_response (HTRequest * request, HTAlertOpcode op,
2.10 frystyk 383: int msgnum, const char * dfault, void * input,
2.6 frystyk 384: HTAlertPar * reply)
385: {
386: HTList * cur = (HTList *) input;
387: HTError * pres;
388: HTErrorShow showmask = HTError_show();
389: HTChunk * msg = NULL;
390: int code;
2.8 eric 391: if (WWWTRACE) HTTrace("HTError..... Generating HTTP response\n");
2.6 frystyk 392: if (!request || !cur || !reply) return NO;
393: while ((pres = (HTError *) HTList_nextObject(cur))) {
394: int index = HTError_index(pres);
395: if (HTError_doShow(pres)) {
396: if (!msg) {
397: msg = HTChunk_new(128);
398: if ((code = HTErrors[index].code) > 0) {
399: char * reason = HTErrors[index].msg;
2.7 frystyk 400: char * buf;
401: if ((buf = (char *) HT_MALLOC(20 + strlen(reason))) == NULL)
402: HT_OUTOFMEM("HTError_response");
2.6 frystyk 403: sprintf(buf,"%s %d %s%c%c",HTTP_VERSION,code,reason,CR,LF);
404: HTAlert_assignReplyMessage(reply, buf);
405: }
406: } else {
407: HTChunk_puts(msg, "\nReason: ");
408: HTChunk_puts(msg, HTErrors[index].msg); /* Error message */
409: }
410:
411: if (showmask & HT_ERR_SHOW_PARS) { /* Error parameters */
412: int length;
413: int cnt;
414: char *pars = (char *) HTError_parameter(pres, &length);
415: if (length && pars) {
416: HTChunk_puts(msg, " (");
417: for (cnt=0; cnt<length; cnt++) {
418: char ch = *(pars+cnt);
419: if (ch < 0x20 || ch >= 0x7F)
420: HTChunk_putc(msg, '#');
421: else
422: HTChunk_putc(msg, ch);
423: }
424: HTChunk_puts(msg, ") ");
425: }
426: }
427:
428: if (showmask & HT_ERR_SHOW_LOCATION) { /* Error Location */
429: HTChunk_puts(msg, "This occured in ");
430: HTChunk_puts(msg, HTError_location(pres));
431: HTChunk_putc(msg, '\n');
432: }
433:
434: /*
435: ** Make sure that we don't get this error more than once even
436: ** if we are keeping the error stack from one request to another
437: */
438: HTError_setIgnore(pres);
439:
440: /* If we only are show the most recent entry then break here */
441: if (showmask & HT_ERR_SHOW_FIRST)
442: break;
443: }
444: }
445: if (msg) {
446: HTChunk_putc(msg, '\n');
447: #if 0
2.8 eric 448: HTTrace("WARNING: %s\n", HTChunk_data(msg));
2.6 frystyk 449: #endif
450: HTChunk_delete(msg);
451: }
452: return YES;
453: }
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