/*
* $LynxId: LYNews.c,v 1.62 2018/03/18 18:51:02 tom Exp $
*/
#include <HTUtils.h>
#ifndef DISABLE_NEWS
#include <HTParse.h>
#include <HTAccess.h>
#include <HTCJK.h>
#include <HTAlert.h>
#include <LYCurses.h>
#include <LYSignal.h>
#include <LYStructs.h>
#include <LYUtils.h>
#include <LYClean.h>
#include <LYStrings.h>
#include <LYHistory.h>
#include <GridText.h>
#include <LYCharSets.h>
#include <LYNews.h>
#include <LYEdit.h>
#include <LYGlobalDefs.h>
#include <LYLeaks.h>
/*
* Global variable for async i/o.
*/
BOOLEAN term_message = FALSE;
static void terminate_message(int sig);
static BOOLEAN message_has_content(const char *filename,
BOOLEAN *nonspaces)
{
FILE *fp;
char *buffer = NULL;
BOOLEAN in_headers = TRUE;
*nonspaces = FALSE;
if (!filename || (fp = fopen(filename, "r")) == NULL) {
CTRACE((tfp, "Failed to open file %s for reading!\n",
NONNULL(filename)));
return FALSE;
}
while (LYSafeGets(&buffer, fp) != NULL) {
char *cp = buffer;
char firstnonblank = '\0';
LYTrimNewline(cp);
for (; *cp; cp++) {
if (!firstnonblank && isgraph(UCH(*cp))) {
firstnonblank = *cp;
} else if (!isspace(UCH(*cp))) {
*nonspaces = TRUE;
}
}
if (firstnonblank && firstnonblank != '>') {
if (!in_headers) {
LYCloseInput(fp);
FREE(buffer);
return TRUE;
}
}
if (!firstnonblank) {
in_headers = FALSE;
}
}
FREE(buffer);
LYCloseInput(fp);
return FALSE;
}
/*
* This function is called from HTLoadNews() to have the user
* create a file with news headers and a body for posting of
* a new message (based on a newspost://nntp_host/newsgroups
* or snewspost://secure_nntp_host/newsgroups URL), or to post
* a followup (based on a newsreply://nntp_host/newsgroups or
* snewsreply://secure_nntp_host/newsgroups URL). The group
* or comma-separated list of newsgroups is passed without
* a lead slash, and followup is TRUE for newsreply or
* snewsreply URLs. - FM
*/
char *LYNewsPost(char *newsgroups,
int followup)
{
char user_input[MAX_LINE];
char CJKinput[MAX_LINE];
char *cp = NULL;
const char *kp = NULL;
int c = 0; /* user input */
int len;
FILE *fd = NULL;
char my_tempfile[LY_MAXPATH];
FILE *fc = NULL;
char CJKfile[LY_MAXPATH];
char *postfile = NULL;
char *NewsGroups = NULL;
char *References = NULL;
char *org = NULL;
FILE *fp = NULL;
BOOLEAN nonempty = FALSE;
BOOLEAN nonspaces = FALSE;
/*
* Make sure a non-zero length newspost, newsreply, snewspost or snewsreply
* path was sent to us. - FM
*/
if (isEmpty(newsgroups))
return (postfile);
/*
* Return immediately if we do get called, maybe by some quirk of HTNews.c,
* when we shouldn't. - kw
*/
if (no_newspost)
return (postfile);
/*
* Open a temporary file for the headers and message body. - FM
*/
#ifdef __DJGPP__
if ((fd = LYOpenTemp(my_tempfile, HTML_SUFFIX, BIN_W)) == NULL)
#else
if ((fd = LYOpenTemp(my_tempfile, HTML_SUFFIX, "w")) == NULL)
#endif /* __DJGPP__ */
{
HTAlert(CANNOT_OPEN_TEMP);
return (postfile);
}
/*
* If we're using a Japanese display character set, open a temporary file
* for a conversion to JIS. - FM
*/
CJKfile[0] = '\0';
if (current_char_set == UCGetLYhndl_byMIME("euc-jp") ||
current_char_set == UCGetLYhndl_byMIME("shift_jis")) {
if ((fc = LYOpenTemp(CJKfile, HTML_SUFFIX, "w")) == NULL) {
HTAlert(CANNOT_OPEN_TEMP);
(void) LYRemoveTemp(my_tempfile);
return (postfile);
}
}
/*
* The newsgroups could be a comma-seperated list. It need not have
* spaces, but deal with any that may also have been hex escaped. - FM
*/
StrAllocCopy(NewsGroups, newsgroups);
if ((cp = strstr(NewsGroups, ";ref="))) {
*cp = '\0';
cp += 5;
if (*cp == '<') {
StrAllocCopy(References, cp);
} else {
StrAllocCopy(References, "<");
StrAllocCat(References, cp);
StrAllocCat(References, ">");
}
HTUnEscape(References);
if (!((cp = StrChr(References, '@')) && cp > References + 1 &&
isalnum(UCH(cp[1])))) {
FREE(References);
}
}
HTUnEscape(NewsGroups);
if (!*NewsGroups) {
LYCloseTempFP(fd); /* Close the temp file. */
goto cleanup;
}
/*
* Allow ^C to cancel the posting, i.e., don't let SIGINTs exit Lynx.
*/
signal(SIGINT, terminate_message);
term_message = FALSE;
/*
* Show the list of newsgroups. - FM
*/
LYclear();
LYmove(2, 0);
scrollok(LYwin, TRUE); /* Enable scrolling. */
LYaddstr(gettext("You will be posting to:"));
LYaddstr("\n\t");
LYaddstr(NewsGroups);
LYaddch('\n');
/*
* Get the mail address for the From header, offering personal_mail_address
* as default.
*/
LYaddstr(gettext("\n\n Please provide your mail address for the From: header\n"));
sprintf(user_input, "From: %.*s", (int) sizeof(user_input) - 8,
NonNull(personal_mail_address));
if (LYGetStr(user_input, FALSE,
sizeof(user_input), NORECALL) < 0 ||
term_message) {
HTInfoMsg(NEWS_POST_CANCELLED);
LYCloseTempFP(fd); /* Close the temp file. */
scrollok(LYwin, FALSE); /* Stop scrolling. */
goto cleanup;
}
fprintf(fd, "%s\n", user_input);
/*
* Get the Subject header, offering the current document's title as the
* default if this is a followup rather than a new post. - FM
*/
LYaddstr(gettext("\n\n Please provide or edit the Subject: header\n"));
strcpy(user_input, "Subject: ");
if ((followup == TRUE && nhist > 0) &&
(kp = HText_getTitle()) != NULL) {
/*
* Add the default subject.
*/
kp = LYSkipCBlanks(kp);
#ifdef CJK_EX /* 1998/05/15 (Fri) 09:10:38 */
if (HTCJK == JAPANESE) {
CJKinput[0] = '\0';
switch (kanji_code) {
case EUC:
TO_EUC((const unsigned char *) kp, (unsigned char *) CJKinput);
kp = CJKinput;
break;
case SJIS:
TO_SJIS((const unsigned char *) kp, (unsigned char *) CJKinput);
kp = CJKinput;
break;
default:
break;
}
}
#endif
if (strncasecomp(kp, "Re:", 3)) {
strcat(user_input, "Re: ");
}
len = (int) strlen(user_input);
LYStrNCpy(user_input + len, kp, (int) sizeof(user_input) - len - 1);
}
cp = NULL;
if (LYGetStr(user_input, FALSE,
sizeof(user_input), NORECALL) < 0 ||
term_message) {
HTInfoMsg(NEWS_POST_CANCELLED);
LYCloseTempFP(fd); /* Close the temp file. */
scrollok(LYwin, FALSE); /* Stop scrolling. */
goto cleanup;
}
fprintf(fd, "%s\n", user_input);
/*
* Add Organization: header.
*/
StrAllocCopy(cp, "Organization: ");
if ((org = LYGetEnv("ORGANIZATION")) != NULL) {
StrAllocCat(cp, org);
} else if ((org = LYGetEnv("NEWS_ORGANIZATION")) != NULL) {
StrAllocCat(cp, org);
}
#ifdef UNIX
else if ((fp = fopen("/etc/organization", TXT_R)) != NULL) {
char *buffer = 0;
if (LYSafeGets(&buffer, fp) != NULL) {
if (user_input[0] != '\0') {
LYTrimNewline(buffer);
StrAllocCat(cp, buffer);
}
}
FREE(buffer);
LYCloseInput(fp);
}
#else
#ifdef _WINDOWS /* 1998/05/14 (Thu) 17:47:01 */
else {
char *p, fname[LY_MAXPATH];
strcpy(fname, LynxSigFile);
p = strrchr(fname, '/');
if (p != 0 && (p - fname) < sizeof(fname) - 15) {
strcpy(p + 1, "LYNX_ETC.TXT");
if ((fp = fopen(fname, TXT_R)) != NULL) {
if (fgets(user_input, (int) sizeof(user_input), fp) != NULL) {
if ((org = StrChr(user_input, '\n')) != NULL) {
*org = '\0';
}
if (user_input[0] != '\0') {
StrAllocCat(cp, user_input);
}
}
LYCloseInput(fp);
}
}
}
#endif /* _WINDOWS */
#endif /* !UNIX */
LYStrNCpy(user_input, cp, (sizeof(user_input) - 16));
FREE(cp);
LYaddstr(gettext("\n\n Please provide or edit the Organization: header\n"));
if (LYGetStr(user_input, FALSE,
sizeof(user_input), NORECALL) < 0 ||
term_message) {
HTInfoMsg(NEWS_POST_CANCELLED);
LYCloseTempFP(fd); /* Close the temp file. */
scrollok(LYwin, FALSE); /* Stop scrolling. */
goto cleanup;
}
fprintf(fd, "%s\n", user_input);
if (References) {
fprintf(fd, "References: %s\n", References);
}
/*
* Add Newsgroups Summary and Keywords headers.
*/
fprintf(fd, "Newsgroups: %s\nSummary: \nKeywords: \n\n", NewsGroups);
/*
* Have the user create the message body.
*/
if (!no_editor && non_empty(editor)) {
if (followup && nhist > 0) {
/*
* Ask if the user wants to include the original message.
*/
if (term_message) {
_statusline(INC_ORIG_MSG_PROMPT);
} else if (HTConfirm(INC_ORIG_MSG_PROMPT) == YES) {
/*
* The 'TRUE' will add the reply ">" in front of every line.
* We're assuming that if the display character set is Japanese
* and the document did not have a CJK charset, any non-EUC or
* non-SJIS 8-bit characters in it where converted to 7-bit
* equivalents. - FM
*/
print_wwwfile_to_fd(fd, FALSE, TRUE);
}
}
LYCloseTempFP(fd); /* Close the temp file. */
scrollok(LYwin, FALSE); /* Stop scrolling. */
if (term_message || LYCharIsINTERRUPT(c))
goto cleanup;
/*
* Spawn the user's editor on the news file.
*/
edit_temporary_file(my_tempfile, "", SPAWNING_EDITOR_FOR_NEWS);
nonempty = message_has_content(my_tempfile, &nonspaces);
} else {
/*
* Use the built in line editior.
*/
LYaddstr(gettext("\n\n Please enter your message below."));
LYaddstr(gettext("\n When you are done, press enter and put a single period (.)"));
LYaddstr(gettext("\n on a line and press enter again."));
LYaddstr("\n\n");
LYrefresh();
*user_input = '\0';
if (LYGetStr(user_input, FALSE,
sizeof(user_input), NORECALL) < 0 ||
term_message) {
HTInfoMsg(NEWS_POST_CANCELLED);
LYCloseTempFP(fd); /* Close the temp file. */
scrollok(LYwin, FALSE); /* Stop scrolling. */
goto cleanup;
}
while (!STREQ(user_input, ".") && !term_message) {
LYaddch('\n');
fprintf(fd, "%s\n", user_input);
if (!nonempty && strlen(user_input))
nonempty = TRUE;
*user_input = '\0';
if (LYGetStr(user_input, FALSE,
sizeof(user_input), NORECALL) < 0) {
HTInfoMsg(NEWS_POST_CANCELLED);
LYCloseTempFP(fd); /* Close the temp file. */
scrollok(LYwin, FALSE); /* Stop scrolling. */
goto cleanup;
}
}
fprintf(fd, "\n");
LYCloseTempFP(fd); /* Close the temp file. */
scrollok(LYwin, FALSE); /* Stop scrolling. */
}
if (nonempty) {
/*
* Confirm whether to post, and if so, whether to append the sig file.
* - FM
*/
LYStatusLine = (LYlines - 1);
c = HTConfirm(POST_MSG_PROMPT);
LYStatusLine = -1;
if (c != YES) {
LYclear(); /* clear the screen */
goto cleanup;
}
} else {
HTAlert(gettext("Message has no original text!"));
if (!nonspaces
|| HTConfirmDefault(POST_MSG_PROMPT, NO) != YES)
goto cleanup;
}
if ((non_empty(LynxSigFile)) && (fp = fopen(LynxSigFile, TXT_R)) != NULL) {
char *msg = NULL;
HTSprintf0(&msg, APPEND_SIG_FILE, LynxSigFile);
LYStatusLine = (LYlines - 1);
if (term_message) {
_user_message(APPEND_SIG_FILE, LynxSigFile);
} else if (HTConfirm(msg) == YES) {
if ((fd = LYAppendToTxtFile(my_tempfile)) != NULL) {
char *buffer = NULL;
fputs("-- \n", fd);
while (LYSafeGets(&buffer, fp) != NULL) {
fputs(buffer, fd);
}
LYCloseOutput(fd);
}
}
LYCloseInput(fp);
FREE(msg);
LYStatusLine = -1;
}
LYclear(); /* clear the screen */
/*
* If we are using a Japanese display character set, convert the contents
* of the temp file to JIS (nothing should change if it does not, in fact,
* contain EUC or SJIS di-bytes). Otherwise, use the temp file as is. -
* FM
*/
if (CJKfile[0] != '\0') {
if ((fd = fopen(my_tempfile, TXT_R)) != NULL) {
char *buffer = NULL;
while (LYSafeGets(&buffer, fd) != NULL) {
TO_JIS((unsigned char *) buffer,
(unsigned char *) CJKinput);
fputs(CJKinput, fc);
}
LYCloseTempFP(fc);
StrAllocCopy(postfile, CJKfile);
LYCloseInput(fd);
(void) LYRemoveTemp(my_tempfile);
strcpy(my_tempfile, CJKfile);
CJKfile[0] = '\0';
} else {
StrAllocCopy(postfile, my_tempfile);
}
} else {
StrAllocCopy(postfile, my_tempfile);
}
if (!followup) {
/*
* If it's not a followup, the current document most likely is the
* group listing, so force a to have the article show up in the list
* after the posting. Note, that if it's a followup via a link in a
* news article, the user must do a reload manually on returning to the
* group listing. - FM
*/
LYforce_no_cache = TRUE;
}
LYStatusLine = (LYlines - 1);
HTUserMsg(POSTING_TO_NEWS);
LYStatusLine = -1;
/*
* Come here to cleanup and exit.
*/
cleanup:
#ifndef VMS
signal(SIGINT, cleanup_sig);
#endif /* !VMS */
term_message = FALSE;
if (!postfile)
(void) LYRemoveTemp(my_tempfile);
(void) LYRemoveTemp(CJKfile);
FREE(NewsGroups);
FREE(References);
return (postfile);
}
static void terminate_message(int sig GCC_UNUSED)
{
term_message = TRUE;
/*
* Reassert the AST.
*/
signal(SIGINT, terminate_message);
#ifdef VMS
/*
* Refresh the screen to get rid of the "interrupt" message.
*/
lynx_force_repaint();
LYrefresh();
#endif /* VMS */
}
#endif /* not DISABLE_NEWS */