Annotation of libwww/Library/src/HTDialog.c, revision 2.25
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.
2.25 ! eric 6: ** @(#) $Id: HTDialog.c,v 2.24 1996/09/08 22:08:13 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: */
2.25 ! eric 26: PRIVATE const char * HTDialogs[HT_MSG_ELEMENTS] = {HT_MSG_ENGLISH_INITIALIZER};
2.1 frystyk 27:
28: /*
29: ** All errors that are not strictly HTTP errors but originates from, e.g.,
30: ** the FTP protocol all have element numbers > HTERR_HTTP_CODES_END, i.e.,
31: ** they should be placed after the blank line
32: */
2.25 ! eric 33: PRIVATE HTErrorMessage HTErrors[HTERR_ELEMENTS] = {HTERR_ENGLISH_INITIALIZER};
2.1 frystyk 34:
35: /* ------------------------------------------------------------------------- */
36:
37: PUBLIC BOOL HTProgress (HTRequest * request, HTAlertOpcode op,
2.10 frystyk 38: int msgnum, const char * dfault, void * input,
2.1 frystyk 39: HTAlertPar * reply)
40: {
2.24 frystyk 41: if (request && HTRequest_internal(request)) return NO;
2.1 frystyk 42: switch (op) {
43: case HT_PROG_DNS:
2.9 frystyk 44: HTTrace("Looking up %s\n", input ? (char *) input : "");
2.1 frystyk 45: break;
46:
47: case HT_PROG_CONNECT:
2.9 frystyk 48: HTTrace("Contacting %s\n", input ? (char *) input : "");
2.1 frystyk 49: break;
50:
51: case HT_PROG_ACCEPT:
2.8 eric 52: HTTrace("Waiting for connection...\n");
2.1 frystyk 53: break;
54:
55: case HT_PROG_READ:
2.24 frystyk 56: if (request) {
2.1 frystyk 57: long cl = HTAnchor_length(HTRequest_anchor(request));
58: if (cl > 0) {
59: long b_read = HTRequest_bytesRead(request);
60: double pro = (double) b_read/cl*100;
61: char buf[10];
62: HTNumToStr((unsigned long) cl, buf, 10);
2.8 eric 63: HTTrace("Read (%d%% of %s)\n", (int) pro, buf);
2.1 frystyk 64: } else
2.8 eric 65: HTTrace("Reading...\n");
2.1 frystyk 66: }
67: break;
68:
69: case HT_PROG_WRITE:
2.24 frystyk 70: if (request && HTMethod_hasEntity(HTRequest_method(request))) {
2.4 frystyk 71: HTParentAnchor *anchor=HTRequest_anchor(HTRequest_source(request));
72: long cl = HTAnchor_length(anchor);
73: if (cl > 0) {
74: long b_write = HTRequest_bytesWritten(request);
75: double pro = (double) b_write/cl*100;
76: char buf[10];
77: HTNumToStr((unsigned long) cl, buf, 10);
2.8 eric 78: HTTrace("Written (%d%% of %s)\n", (int) pro, buf);
2.4 frystyk 79: } else
2.8 eric 80: HTTrace("Writing...\n");
2.4 frystyk 81: }
2.1 frystyk 82: break;
83:
84: case HT_PROG_DONE:
2.22 frystyk 85: HTTrace("Connection closed\n");
2.1 frystyk 86: break;
87:
88: case HT_PROG_WAIT:
2.12 frystyk 89: HTTrace("Waiting for free socket...\n");
2.24 frystyk 90: break;
91:
92: case HT_PROG_GC:
93: HTTrace("Garbage colleting persistent cache - please wait...\n");
2.1 frystyk 94: break;
95:
96: default:
2.8 eric 97: HTTrace("UNKNOWN PROGRESS STATE\n");
2.1 frystyk 98: break;
99: }
100: return YES;
101: }
102:
103: PUBLIC BOOL HTConfirm (HTRequest * request, HTAlertOpcode op,
2.10 frystyk 104: int msgnum, const char * dfault, void * input,
2.1 frystyk 105: HTAlertPar * reply)
106: {
107: char response[4]; /* One more for terminating NULL -- AL */
2.8 eric 108: HTTrace("%s", HTDialogs[msgnum]);
109: if (input) HTTrace(" (%s)", (char *) input);
110: HTTrace(" (y/n) ");
2.1 frystyk 111: #ifndef NO_STDIO
2.2 frystyk 112: if (fgets(response, 4, stdin)) /* get reply, max 3 chars */
2.1 frystyk 113: #endif
2.2 frystyk 114: {
2.1 frystyk 115: char *ptr = response;
116: while (*ptr) {
117: if (*ptr == '\n') {
118: *ptr = '\0';
119: break;
120: }
121: *ptr = TOUPPER(*ptr);
122: ptr++;
123: }
124: return (!strcmp(response, "YES") || !strcmp(response, "Y")) ? YES : NO;
125: }
126: return NO;
127: }
128:
129: /* Prompt for answer and get text back. Reply text is either NULL on
2.10 frystyk 130: ** error or a dynamic string which the caller must HT_FREE.
2.1 frystyk 131: */
132: PUBLIC BOOL HTPrompt (HTRequest * request, HTAlertOpcode op,
2.10 frystyk 133: int msgnum, const char * dfault, void * input,
2.1 frystyk 134: HTAlertPar * reply)
135: {
2.8 eric 136: HTTrace("%s ", HTDialogs[msgnum]);
137: if (input) HTTrace(" (%s) ", (char *) input);
138: if (dfault) HTTrace("(RETURN for [%s]) ", (char *) dfault);
2.1 frystyk 139: if (reply && msgnum>=0) {
140: #ifndef NO_STDIO
2.5 frystyk 141: char buffer[200];
2.1 frystyk 142: if (!fgets(buffer, 200, stdin)) return NO;
143: buffer[strlen(buffer)-1] = '\0'; /* Overwrite newline */
144: if (*buffer)
145: HTAlert_setReplyMessage(reply, buffer);
146: else if (dfault)
147: HTAlert_setReplyMessage(reply, (char *) dfault);
148: else
149: return NO;
150: return YES;
151: #endif
152: }
153: return NO;
154: }
155:
156: /* Prompt for password without echoing the reply. Reply text is
2.10 frystyk 157: ** either NULL on error or a dynamic string which the caller must HT_FREE.
2.1 frystyk 158: */
159: PUBLIC BOOL HTPromptPassword (HTRequest * request, HTAlertOpcode op,
2.10 frystyk 160: int msgnum, const char * dfault, void * input,
2.1 frystyk 161: HTAlertPar * reply)
162: {
163: if (reply && msgnum>=0) {
2.10 frystyk 164: #ifdef HAVE_GETPASS
2.1 frystyk 165: char * pw = (char *) getpass(HTDialogs[msgnum]);
2.2 frystyk 166: if (pw) HTAlert_setReplySecret(reply, pw);
2.1 frystyk 167: return YES;
2.10 frystyk 168: #else
2.11 eric 169: return NO; /* needed for WWW_MSWINDOWS */
2.10 frystyk 170: #endif /* HAVE_GETPASS */
2.1 frystyk 171: }
172: return NO;
173: }
174:
175: /* Username and password
176: ** ---------------------
177: ** Prompt Username and password as an atomic operation
178: */
179: PUBLIC BOOL HTPromptUsernameAndPassword (HTRequest * request, HTAlertOpcode op,
2.10 frystyk 180: int msgnum, const char * dfault,
2.1 frystyk 181: void * input, HTAlertPar * reply)
182: {
2.21 frystyk 183: BOOL status = HTPrompt(request, op, msgnum, dfault, input, reply);
2.1 frystyk 184: return status ?
185: HTPromptPassword(request, op, HT_MSG_PW, dfault, input, reply) : NO;
186: }
187:
188: /* HTError_print
189: ** -------------
190: ** Default function that creates an error message using HTAlert() to
191: ** put out the contents of the error_stack messages. Furthermore, the
192: ** error_info structure contains a name of a help file that might be put
193: ** up as a link. This file can then be multi-linguistic.
194: */
195: PUBLIC BOOL HTError_print (HTRequest * request, HTAlertOpcode op,
2.10 frystyk 196: int msgnum, const char * dfault, void * input,
2.1 frystyk 197: HTAlertPar * reply)
198: {
199: HTList *cur = (HTList *) input;
200: HTError *pres;
201: HTErrorShow showmask = HTError_show();
202: HTChunk *msg = NULL;
203: int code;
2.8 eric 204: if (WWWTRACE) HTTrace("HTError..... Generating message\n");
2.1 frystyk 205: if (!request || !cur) return NO;
206: while ((pres = (HTError *) HTList_nextObject(cur))) {
207: int index = HTError_index(pres);
208: if (HTError_doShow(pres)) {
209: if (!msg) {
210: HTSeverity severity = HTError_severity(pres);
2.3 frystyk 211: msg = HTChunk_new(128);
2.1 frystyk 212: if (severity == ERR_WARN)
2.3 frystyk 213: HTChunk_puts(msg, "Warning: ");
2.1 frystyk 214: else if (severity == ERR_NON_FATAL)
2.3 frystyk 215: HTChunk_puts(msg, "Non Fatal Error: ");
2.1 frystyk 216: else if (severity == ERR_FATAL)
2.3 frystyk 217: HTChunk_puts(msg, "Fatal Error: ");
2.1 frystyk 218: else if (severity == ERR_INFO)
2.3 frystyk 219: HTChunk_puts(msg, "Information: ");
2.1 frystyk 220: else {
221: if (WWWTRACE)
2.8 eric 222: HTTrace("HTError..... Unknown Classification of Error (%d)...\n", severity);
2.3 frystyk 223: HTChunk_delete(msg);
2.1 frystyk 224: return NO;
225: }
226:
227: /* Error number */
228: if ((code = HTErrors[index].code) > 0) {
229: char buf[10];
230: sprintf(buf, "%d ", code);
2.3 frystyk 231: HTChunk_puts(msg, buf);
2.1 frystyk 232: }
233: } else
2.3 frystyk 234: HTChunk_puts(msg, "\nReason: ");
235: HTChunk_puts(msg, HTErrors[index].msg); /* Error message */
2.1 frystyk 236:
237: if (showmask & HT_ERR_SHOW_PARS) { /* Error parameters */
238: int length;
239: int cnt;
240: char *pars = (char *) HTError_parameter(pres, &length);
241: if (length && pars) {
2.3 frystyk 242: HTChunk_puts(msg, " (");
2.1 frystyk 243: for (cnt=0; cnt<length; cnt++) {
244: char ch = *(pars+cnt);
245: if (ch < 0x20 || ch >= 0x7F)
2.3 frystyk 246: HTChunk_putc(msg, '#');
2.1 frystyk 247: else
2.3 frystyk 248: HTChunk_putc(msg, ch);
2.1 frystyk 249: }
2.3 frystyk 250: HTChunk_puts(msg, ") ");
2.1 frystyk 251: }
252: }
253:
254: if (showmask & HT_ERR_SHOW_LOCATION) { /* Error Location */
2.3 frystyk 255: HTChunk_puts(msg, "This occured in ");
256: HTChunk_puts(msg, HTError_location(pres));
257: HTChunk_putc(msg, '\n');
2.1 frystyk 258: }
259:
260: /*
261: ** Make sure that we don't get this error more than once even
262: ** if we are keeping the error stack from one request to another
263: */
264: HTError_setIgnore(pres);
265:
266: /* If we only are show the most recent entry then break here */
267: if (showmask & HT_ERR_SHOW_FIRST)
268: break;
269: }
270: }
271: if (msg) {
2.3 frystyk 272: HTChunk_putc(msg, '\n');
2.8 eric 273: HTTrace("WARNING: %s\n", HTChunk_data(msg));
2.3 frystyk 274: HTChunk_delete(msg);
2.1 frystyk 275: }
276: return YES;
277: }
278:
2.6 frystyk 279: /* HTError_response
280: ** ----------------
281: ** Default function that creates an error message using HTAlert() to
282: ** put out the contents of the error_stack messages. Furthermore, the
283: ** error_info structure contains a name of a help file that might be put
284: ** up as a link. This file can then be multi-linguistic.
285: */
286: PUBLIC BOOL HTError_response (HTRequest * request, HTAlertOpcode op,
2.10 frystyk 287: int msgnum, const char * dfault, void * input,
2.6 frystyk 288: HTAlertPar * reply)
289: {
290: HTList * cur = (HTList *) input;
291: HTError * pres;
292: HTErrorShow showmask = HTError_show();
293: HTChunk * msg = NULL;
294: int code;
2.8 eric 295: if (WWWTRACE) HTTrace("HTError..... Generating HTTP response\n");
2.6 frystyk 296: if (!request || !cur || !reply) return NO;
297: while ((pres = (HTError *) HTList_nextObject(cur))) {
298: int index = HTError_index(pres);
299: if (HTError_doShow(pres)) {
300: if (!msg) {
301: msg = HTChunk_new(128);
302: if ((code = HTErrors[index].code) > 0) {
303: char * reason = HTErrors[index].msg;
2.7 frystyk 304: char * buf;
305: if ((buf = (char *) HT_MALLOC(20 + strlen(reason))) == NULL)
306: HT_OUTOFMEM("HTError_response");
2.6 frystyk 307: sprintf(buf,"%s %d %s%c%c",HTTP_VERSION,code,reason,CR,LF);
308: HTAlert_assignReplyMessage(reply, buf);
309: }
310: } else {
311: HTChunk_puts(msg, "\nReason: ");
312: HTChunk_puts(msg, HTErrors[index].msg); /* Error message */
313: }
314:
315: if (showmask & HT_ERR_SHOW_PARS) { /* Error parameters */
316: int length;
317: int cnt;
318: char *pars = (char *) HTError_parameter(pres, &length);
319: if (length && pars) {
320: HTChunk_puts(msg, " (");
321: for (cnt=0; cnt<length; cnt++) {
322: char ch = *(pars+cnt);
323: if (ch < 0x20 || ch >= 0x7F)
324: HTChunk_putc(msg, '#');
325: else
326: HTChunk_putc(msg, ch);
327: }
328: HTChunk_puts(msg, ") ");
329: }
330: }
331:
332: if (showmask & HT_ERR_SHOW_LOCATION) { /* Error Location */
333: HTChunk_puts(msg, "This occured in ");
334: HTChunk_puts(msg, HTError_location(pres));
335: HTChunk_putc(msg, '\n');
336: }
337:
338: /*
339: ** Make sure that we don't get this error more than once even
340: ** if we are keeping the error stack from one request to another
341: */
342: HTError_setIgnore(pres);
343:
344: /* If we only are show the most recent entry then break here */
345: if (showmask & HT_ERR_SHOW_FIRST)
346: break;
347: }
348: }
349: if (msg) {
350: HTChunk_putc(msg, '\n');
351: #if 0
2.8 eric 352: HTTrace("WARNING: %s\n", HTChunk_data(msg));
2.6 frystyk 353: #endif
354: HTChunk_delete(msg);
355: }
356: return YES;
357: }
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