/*
 * $LynxId: LYPrint.c,v 1.107 2018/03/18 19:06:06 tom Exp $
 */
#include <HTUtils.h>
#include <HTAccess.h>
#include <HTList.h>
#include <HTAlert.h>
#include <HTFile.h>
#include <LYCurses.h>
#include <GridText.h>
#include <LYUtils.h>
#include <LYPrint.h>
#include <LYGlobalDefs.h>
#include <LYSignal.h>
#include <LYStrings.h>
#include <LYClean.h>
#include <LYGetFile.h>
#include <LYHistory.h>
#include <LYList.h>
#include <LYCharSets.h>		/* To get current charset for mail header. */

#include <LYLeaks.h>

#define CancelPrint(msg) HTInfoMsg(msg); goto done
#define CannotPrint(msg) HTAlert(msg); goto done

/*
 * printfile prints out the current file minus the links and targets to a
 * variety of places
 */

/* it parses an incoming link that looks like
 *
 * LYNXPRINT://LOCAL_FILE/lines=##
 * LYNXPRINT://MAIL_FILE/lines=##
 * LYNXPRINT://TO_SCREEN/lines=##
 * LYNXPRINT://LPANSI/lines=##
 * LYNXPRINT://PRINTER/lines=##/number=#
 */

#define TO_FILE   1
#define TO_SCREEN 2
/*
 * "lpansi.c"
 * Original author: Gary Day (gday@comp.uark.edu), 11/30/93
 * Current version: 2.1 by Noel Hunter (noel@wfu.edu), 10/20/94
 *
 * Basic structure based on print -- format files for printing from
 * _Practical_C_Programming by Steve Oualline, O'Reilly & Associates
 *
 * adapted from the README for lpansi.c v2.1, dated 10/20/1994:
 *		    Print to ANSI printer on local terminal
 *     The VT100 standard defines printer on and off escape sequences,
 *     esc[5i is printer on, and esc[4i is printer off.
 *
 * incorporate the idea of "lpansi" directly into LYPrint.c - HN
 */
#define LPANSI	  3
#define MAIL	  4
#define PRINTER   5

#if USE_VMS_MAILER
static int remove_quotes(char *string);
#endif /* USE_VMS_MAILER */

static char *subject_translate8bit(char *source);

#define LYNX_PRINT_TITLE   0
#define LYNX_PRINT_URL     1
#define LYNX_PRINT_DATE    2
#define LYNX_PRINT_LASTMOD 3

#define MAX_PUTENV 4

static void set_environ(int name,
			const char *value,
			const char *no_value)
{
    static const char *names[MAX_PUTENV] =
    {
	"LYNX_PRINT_TITLE",
	"LYNX_PRINT_URL",
	"LYNX_PRINT_DATE",
	"LYNX_PRINT_LASTMOD",
    };
    static char *pointers[MAX_PUTENV];
    char *envbuffer = 0;

#ifdef VMS
#define SET_ENVIRON(name, value, no_value) set_environ(name, value, no_value)
    char temp[80];

    StrAllocCopy(envbuffer, value);
    if (isEmpty(envbuffer))
	StrAllocCopy(envbuffer, no_value);
    Define_VMSLogical(strcpy(temp, names[name]), envbuffer);
    FREE(envbuffer);
#else
#define SET_ENVIRON(name, value, no_value) set_environ(name, value, "")
    /*
     * Once we've given a string to 'putenv()', we must not free it until we
     * give it a string to replace it.
     */
    StrAllocCopy(envbuffer, names[name]);
    StrAllocCat(envbuffer, "=");
    StrAllocCat(envbuffer, value ? value : no_value);
    putenv(envbuffer);
    FREE(pointers[name]);
    pointers[name] = envbuffer;
#endif
}

static char *suggested_filename(DocInfo *newdoc)
{
    char *sug_filename = 0;
    int rootlen;

    /*
     * Load the suggested filename string.  - FM
     */
    if (HText_getSugFname() != 0)
	StrAllocCopy(sug_filename, HText_getSugFname());	/* must be freed */
    else
	StrAllocCopy(sug_filename, newdoc->address);	/* must be freed */
    /*
     * Strip suffix for compressed-files, if present.
     */
    if (HTCompressFileType(sug_filename, ".", &rootlen) != cftNone)
	sug_filename[rootlen] = '\0';

    CTRACE((tfp, "suggest %s\n", sug_filename));
    return sug_filename;
}

static void SetupFilename(bstring **filename,
			  const char *sug_filename)
{
    HTFormat format;
    HTAtom *encoding;
    char *cp;

    BStrCopy0(*filename, sug_filename);		/* add suggestion info */
    /*
     * FIXME: the history-recall still uses fixed-size buffers
     */
    if ((*filename)->len >= LY_MAXPATH) {
	(*filename)->str[LY_MAXPATH - 1] = '\0';
    } else {
	BStrAlloc(*filename, LY_MAXPATH);
    }
    change_sug_filename((*filename)->str);
    if (!(HTisDocumentSource())
	&& (cp = strrchr((*filename)->str, '.')) != NULL) {
	format = HTFileFormat((*filename)->str, &encoding, NULL);
	CTRACE((tfp, "... format %s\n", format->name));
	if (!strcasecomp(format->name, STR_HTML) ||
	    !IsUnityEnc(encoding)) {
	    (*filename)->len = (int) (cp - (*filename)->str);
	    BStrCat0(*filename, TEXT_SUFFIX);
	}
    }
    CTRACE((tfp, "... result %s\n", (*filename)->str));
}

#define FN_INIT 0
#define FN_READ 1
#define FN_DONE 2
#define FN_QUIT 3

#define PRINT_FLAG   0
#define GENERIC_FLAG 1

static int RecallFilename(bstring **filename,
			  BOOLEAN *first,
			  int *now,
			  int *total,
			  int flag)
{
    int ch;
    char *cp;
    RecallType recall;

    /*
     * Set up the sug_filenames recall buffer.
     */
    if (*now < 0) {
	*total = (sug_filenames ? HTList_count(sug_filenames) : 0);
	*now = *total;
    }
    recall = ((*total >= 1) ? RECALL_URL : NORECALL);

    if ((ch = LYgetBString(filename, FALSE, 0, recall)) < 0 ||
	isBEmpty(*filename) || ch == UPARROW_KEY || ch == DNARROW_KEY) {
	if (recall && ch == UPARROW_KEY) {
	    if (*first) {
		*first = FALSE;
		/*
		 * Use the last Fname in the list.  - FM
		 */
		*now = 0;
	    } else {
		/*
		 * Go back to the previous Fname in the list.  - FM
		 */
		*now += 1;
	    }
	    if (*now >= *total) {
		/*
		 * Reset the *first flag, and use sug_file or a blank.  -
		 * FM
		 */
		*first = TRUE;
		*now = *total;
		_statusline(FILENAME_PROMPT);
		return FN_INIT;
	    } else if ((cp = (char *) HTList_objectAt(sug_filenames,
						      *now)) != NULL) {
		BStrCopy0(*filename, cp);
		if (*total == 1) {
		    _statusline(EDIT_THE_PREV_FILENAME);
		} else {
		    _statusline(EDIT_A_PREV_FILENAME);
		}
		return FN_READ;
	    }
	} else if (recall && ch == DNARROW_KEY) {
	    if (*first) {
		*first = FALSE;
		/*
		 * Use the first Fname in the list. - FM
		 */
		*now = *total - 1;
	    } else {
		/*
		 * Advance to the next Fname in the list. - FM
		 */
		*now -= 1;
	    }
	    if (*now < 0) {
		/*
		 * Set the *first flag, and use sug_file or a blank.  - FM
		 */
		*first = TRUE;
		*now = *total;
		_statusline(FILENAME_PROMPT);
		return FN_INIT;
	    } else if ((cp = (char *) HTList_objectAt(sug_filenames,
						      *now)) != NULL) {
		BStrCopy0(*filename, cp);
		if (*total == 1) {
		    _statusline(EDIT_THE_PREV_FILENAME);
		} else {
		    _statusline(EDIT_A_PREV_FILENAME);
		}
		return FN_READ;
	    }
	}

	/*
	 * Operation cancelled.
	 */
	if (flag == PRINT_FLAG)
	    HTInfoMsg(SAVE_REQUEST_CANCELLED);
	else if (flag == GENERIC_FLAG)
	    return FN_QUIT;

	return FN_QUIT;
    }
    return FN_DONE;
}

static BOOLEAN confirm_by_pages(const char *prompt,
				int lines_in_file,
				int lines_per_page)
{
    int pages = lines_in_file / (lines_per_page + 1);
    int c;

    /* count fractional pages ! */
    if ((lines_in_file % (LYlines + 1)) > 0)
	pages++;

    if (pages > 4) {
	char *msg = 0;

	HTSprintf0(&msg, prompt, pages);
	c = HTConfirmDefault(msg, YES);
	FREE(msg);

	if (c == YES) {
	    LYaddstr("   Ok...");
	} else {
	    HTInfoMsg(PRINT_REQUEST_CANCELLED);
	    return FALSE;
	}
    }
    return TRUE;
}

static void send_file_to_file(DocInfo *newdoc,
			      char *content_base,
			      char *sug_filename)
{
    BOOLEAN FirstRecall = TRUE;
    BOOLEAN use_cte;
    const char *disp_charset;
    FILE *outfile_fp;
    bstring *buffer = NULL;
    bstring *filename = NULL;
    int FnameNum = -1;
    int FnameTotal;
    int c = 0;

    _statusline(FILENAME_PROMPT);

  retry:
    SetupFilename(&filename, sug_filename);
    if (non_empty(lynx_save_space)) {
	BStrCopy0(buffer, lynx_save_space);
	BStrCat(buffer, filename);
	BStrCopy(filename, buffer);
    } else {
	BStrCopy0(buffer, "");
    }

  check_recall:
    switch (RecallFilename(&filename, &FirstRecall, &FnameNum,
			   &FnameTotal, PRINT_FLAG)) {
    case FN_INIT:
	goto retry;
    case FN_READ:
	goto check_recall;
    case FN_QUIT:
	goto done;
    default:
	break;
    }

    if (!LYValidateFilename(&buffer, &filename)) {
	CancelPrint(SAVE_REQUEST_CANCELLED);
    }

    /*
     * See if it already exists.
     */
    switch (c = LYValidateOutput(buffer->str)) {
    case 'Y':
	break;
    case 'N':
	_statusline(NEW_FILENAME_PROMPT);
	FirstRecall = TRUE;
	FnameNum = FnameTotal;
	goto retry;
    default:
	goto done;
    }

    /*
     * See if we can write to it.
     */
    CTRACE((tfp, "LYPrint: filename is %s, action is `%c'\n", buffer->str, c));

#ifdef HAVE_POPEN
    if (buffer->str[0] == '|') {
	if (no_shell) {
	    HTUserMsg(SPAWNING_DISABLED);
	    FirstRecall = TRUE;
	    FnameNum = FnameTotal;
	    goto retry;
	} else if ((outfile_fp = popen(buffer->str + 1, "w")) == NULL) {
	    CTRACE((tfp, "LYPrint: errno is %d\n", errno));
	    HTAlert(CANNOT_WRITE_TO_FILE);
	    _statusline(NEW_FILENAME_PROMPT);
	    FirstRecall = TRUE;
	    FnameNum = FnameTotal;
	    goto retry;
	}
    } else
#endif
	if ((outfile_fp = (TOUPPER(c) == 'A'
			   ? LYAppendToTxtFile(buffer->str)
			   : LYNewTxtFile(buffer->str))) == NULL) {
	CTRACE((tfp, "LYPrint: errno is %d\n", errno));
	HTAlert(CANNOT_WRITE_TO_FILE);
	_statusline(NEW_FILENAME_PROMPT);
	FirstRecall = TRUE;
	FnameNum = FnameTotal;
	goto retry;
    }

    if (LYPrependBaseToSource && HTisDocumentSource()) {
	/*
	 * Added the document's base as a BASE tag to the top of the file.  May
	 * create technically invalid HTML, but will help get any partial or
	 * relative URLs resolved properly if no BASE tag is present to replace
	 * it.  - FM
	 *
	 * Add timestamp (last reload).
	 */

	fprintf(outfile_fp,
		"<!-- X-URL: %s -->\n", newdoc->address);
	if (HText_getDate() != NULL) {
	    fprintf(outfile_fp,
		    "<!-- Date: %s -->\n", HText_getDate());
	    if (HText_getLastModified() != NULL
		&& strcmp(HText_getLastModified(), HText_getDate())
		&& strcmp(HText_getLastModified(),
			  "Thu, 01 Jan 1970 00:00:01 GMT")) {
		fprintf(outfile_fp,
			"<!-- Last-Modified: %s -->\n", HText_getLastModified());
	    }
	}

	fprintf(outfile_fp,
		"<BASE HREF=\"%s\">\n", content_base);
    }

    if (LYPrependCharsetToSource && HTisDocumentSource()) {
	/*
	 * Added the document's charset as a META CHARSET tag to the top of the
	 * file.  May create technically invalid HTML, but will help to resolve
	 * properly the document converted via chartrans:  printed document
	 * correspond to a display charset and we *should* override both
	 * assume_local_charset and original document's META CHARSET (if any).
	 *
	 * Currently, if several META CHARSETs are found Lynx uses the first
	 * only, and it is opposite to BASE where the original BASE in the
	 * <HEAD> overrides ones from the top.
	 *
	 * As in print-to-email we write charset only if the document has 8-bit
	 * characters, and we have no CJK or an unofficial "x-" charset.
	 */
	use_cte = HTLoadedDocumentEightbit();
	disp_charset = LYCharSet_UC[current_char_set].MIMEname;
	if (!use_cte || LYHaveCJKCharacterSet ||
	    strncasecomp(disp_charset, "x-", 2) == 0) {
	} else {
	    fprintf(outfile_fp,
		    "<META HTTP-EQUIV=\"Content-Type\" CONTENT=\"" STR_HTML
		    "; charset=%s\">\n\n",
		    disp_charset);
	}
    }

    print_wwwfile_to_fd(outfile_fp, FALSE, FALSE);	/* FILE */
    if (keypad_mode)
	printlist(outfile_fp, FALSE);

#ifdef HAVE_POPEN
    if (LYIsPipeCommand(buffer->str))
	pclose(outfile_fp);
    else
#endif
	LYCloseOutput(outfile_fp);

#ifdef VMS
    if (0 == strncasecomp(buffer->str, "sys$disk:", 9)) {
	if (0 == StrNCmp((buffer->str + 9), "[]", 2)) {
	    HTAddSugFilename(buffer->str + 11);
	} else {
	    HTAddSugFilename(buffer->str + 9);
	}
    } else {
	HTAddSugFilename(buffer->str);
    }
#else
    HTAddSugFilename(buffer->str);
#endif /* VMS */

  done:
    BStrFree(buffer);
    BStrFree(filename);
    return;
}

static void send_file_to_mail(DocInfo *newdoc,
			      char *content_base,
			      char *content_location)
{
    static BOOLEAN first_mail_preparsed = TRUE;

#if USE_VMS_MAILER
    BOOLEAN isPMDF = LYMailPMDF();
    FILE *hfd;
    char hdrfile[LY_MAXPATH];
#endif
    BOOL use_mime;

#if !CAN_PIPE_TO_MAILER
    char my_temp[LY_MAXPATH];
#endif

    BOOL use_cte;
    BOOL use_type;
    const char *disp_charset;
    FILE *outfile_fp;
    char *buffer = NULL;
    char *subject = NULL;
    bstring *user_response = NULL;

    if (!LYSystemMail())
	return;

    if (LYPreparsedSource && first_mail_preparsed &&
	HTisDocumentSource()) {
	if (HTConfirmDefault(CONFIRM_MAIL_SOURCE_PREPARSED, NO) == YES) {
	    LYaddstr("   Ok...");
	    first_mail_preparsed = FALSE;
	} else {
	    CancelPrint(MAIL_REQUEST_CANCELLED);
	}
    }

    _statusline(MAIL_ADDRESS_PROMPT);
    BStrCopy0(user_response, NonNull(personal_mail_address));
    if (LYgetBString(&user_response, FALSE, 0, RECALL_MAIL) < 0 ||
	isBEmpty(user_response)) {
	CancelPrint(MAIL_REQUEST_CANCELLED);
    }

    /*
     * Determine which mail headers should be sent.  Use Content-Type and
     * MIME-Version headers only if needed.  We need them if we are mailing
     * HTML source, or if we have 8-bit characters and will be sending
     * Content-Transfer-Encoding to indicate this.  We will append a charset
     * parameter to the Content-Type if we do not have an "x-" charset, and we
     * will include the Content-Transfer-Encoding only if we are appending the
     * charset parameter, because indicating an 8-bit transfer without also
     * indicating the charset can cause problems with many mailers.  - FM & KW
     */
    disp_charset = LYCharSet_UC[current_char_set].MIMEname;
    use_cte = HTLoadedDocumentEightbit();
    if (!(use_cte && strncasecomp(disp_charset, "x-", 2))) {
	disp_charset = NULL;
#if USE_VMS_MAILER
	use_cte = FALSE;
#endif
    }
#if USE_VMS_MAILER
    use_type = (BOOL) (disp_charset || HTisDocumentSource());
#endif

    /*
     * Use newdoc->title as a subject instead of sug_filename:  MORE readable
     * and 8-bit letters shouldn't be a problem - LP
     */
    /* change_sug_filename(sug_filename); */
    subject = subject_translate8bit(newdoc->title);

    if (newdoc->isHEAD) {
	/*
	 * Special case for mailing HEAD responce:  this is rather technical
	 * information, show URL.
	 */
	FREE(subject);
	StrAllocCopy(subject, "HEAD  ");
	StrAllocCat(subject, newdoc->address);
    }
#if USE_VMS_MAILER
    if (StrChr(user_response->str, '@') &&
	!StrChr(user_response->str, ':') &&
	!StrChr(user_response->str, '%') &&
	!StrChr(user_response->str, '"')) {
	char *temp = 0;

	HTSprintf0(&temp, mail_adrs, user_response->str);
	BStrCopy0(user_response, temp);
	FREE(temp);
    }

    outfile_fp = LYOpenTemp(my_temp,
			    (HTisDocumentSource())
			    ? HTML_SUFFIX
			    : TEXT_SUFFIX,
			    "w");
    if (outfile_fp == NULL) {
	CannotPrint(UNABLE_TO_OPEN_TEMPFILE);
    }

    if (isPMDF) {
	if ((hfd = LYOpenTemp(hdrfile, TEXT_SUFFIX, "w")) == NULL) {
	    CannotPrint(UNABLE_TO_OPEN_TEMPFILE);
	}
	if (use_type) {
	    fprintf(hfd, "Mime-Version: 1.0\n");
	    if (use_cte) {
		fprintf(hfd, "Content-Transfer-Encoding: 8bit\n");
	    }
	}
	if (HTisDocumentSource()) {
	    /*
	     * Add Content-Type, Content-Location, and Content-Base headers for
	     * HTML source.  - FM
	     */
	    fprintf(hfd, "Content-Type: " STR_HTML);
	    if (disp_charset != NULL) {
		fprintf(hfd, "; charset=%s\n", disp_charset);
	    } else {
		fprintf(hfd, "\n");
	    }
	    fprintf(hfd, "Content-Base: %s\n", content_base);
	    fprintf(hfd, "Content-Location: %s\n", content_location);
	} else {
	    /*
	     * Add Content-Type:  text/plain if we have 8-bit characters and a
	     * valid charset for non-source documents.  - FM
	     */
	    if (disp_charset != NULL) {
		fprintf(hfd,
			"Content-Type: " STR_PLAINTEXT "; charset=%s\n",
			disp_charset);
	    }
	}
	/*
	 * X-URL header.  - FM
	 */
	fprintf(hfd, "X-URL: %s\n", newdoc->address);
	/*
	 * For PMDF, put the subject in the header file and close it.  - FM
	 */
	fprintf(hfd, "Subject: %.70s\n\n", subject);
	LYCloseTempFP(hfd);
    }

    /*
     * Write the contents to a temp file.
     */
    if (LYPrependBaseToSource && HTisDocumentSource()) {
	/*
	 * Added the document's base as a BASE tag to the top of the message
	 * body.  May create technically invalid HTML, but will help get any
	 * partial or relative URLs resolved properly if no BASE tag is present
	 * to replace it.  - FM
	 */
	fprintf(outfile_fp,
		"<!-- X-URL: %s -->\n<BASE HREF=\"%s\">\n\n",
		newdoc->address, content_base);
    } else if (!isPMDF) {
	fprintf(outfile_fp, "X-URL: %s\n\n", newdoc->address);
    }
    print_wwwfile_to_fd(outfile_fp, TRUE, FALSE);	/* MAIL */
    if (keypad_mode)
	printlist(outfile_fp, FALSE);
    LYCloseTempFP(outfile_fp);

    buffer = NULL;
    if (isPMDF) {
	/*
	 * Now set up the command.  - FM
	 */
	HTSprintf0(&buffer,
		   "%s %s %s,%s %s",
		   system_mail,
		   system_mail_flags,
		   hdrfile,
		   my_temp,
		   user_response->str);
    } else {
	/*
	 * For "generic" VMS MAIL, include the subject in the command.  - FM
	 */
	remove_quotes(subject);
	HTSprintf0(&buffer,
		   "%s %s/subject=\"%.70s\" %s %s",
		   system_mail,
		   system_mail_flags,
		   subject,
		   my_temp,
		   user_response->str);
    }

    stop_curses();
    SetOutputMode(O_TEXT);
    printf(MAILING_FILE);
    LYSystem(buffer);
    LYSleepAlert();
    start_curses();
    SetOutputMode(O_BINARY);

    if (isPMDF)
	(void) LYRemoveTemp(hdrfile);
    (void) LYRemoveTemp(my_temp);
#else /* !VMS (Unix or DOS) */

#if CAN_PIPE_TO_MAILER
    outfile_fp = LYPipeToMailer();
#else
    outfile_fp = LYOpenTemp(my_temp, TEXT_SUFFIX, "w");
#endif
    if (outfile_fp == NULL) {
	CannotPrint(MAIL_REQUEST_FAILED);
    }

    /*
     * Determine which mail headers should be sent.  Use Content-Type and
     * MIME-Version headers only if needed.  We need them if we are mailing
     * HTML source, or if we have 8-bit characters and will be sending
     * Content-Transfer-Encoding to indicate this.
     *
     * Send Content-Transfer-Encoding only if the document has 8-bit
     * characters.  Send a charset parameter only if the document has 8-bit
     * characters and we seem to have a valid charset.  - kw
     */
    use_cte = HTLoadedDocumentEightbit();
    disp_charset = LYCharSet_UC[current_char_set].MIMEname;
    /*
     * Don't send a charset if we have a CJK character set selected, since it
     * may not be appropriate for mail...  Also don't use an unofficial "x-"
     * charset.  - kw
     */
    if (!use_cte || LYHaveCJKCharacterSet ||
	strncasecomp(disp_charset, "x-", 2) == 0) {
	disp_charset = NULL;
    }
#ifdef NOTDEFINED
    /* Enable this if indicating an 8-bit transfer without also indicating the
     * charset causes problems.  - kw */
    if (use_cte && !disp_charset)
	use_cte = FALSE;
#endif /* NOTDEFINED */
    use_type = (BOOL) (disp_charset || HTisDocumentSource());
    use_mime = (BOOL) (use_cte || use_type);

    if (use_mime) {
	fprintf(outfile_fp, "Mime-Version: 1.0\n");
	if (use_cte) {
	    fprintf(outfile_fp, "Content-Transfer-Encoding: 8bit\n");
	}
    }

    if (HTisDocumentSource()) {
	/*
	 * Add Content-Type, Content-Location, and Content-Base headers for
	 * HTML source.  - FM
	 */
	fprintf(outfile_fp, "Content-Type: " STR_HTML);
	if (disp_charset != NULL) {
	    fprintf(outfile_fp, "; charset=%s\n", disp_charset);
	} else {
	    fprintf(outfile_fp, "\n");
	}
    } else {
	/*
	 * Add Content-Type:  text/plain if we have 8-bit characters and a
	 * valid charset for non-source documents.  - KW
	 */
	if (disp_charset != NULL) {
	    fprintf(outfile_fp,
		    "Content-Type: " STR_PLAINTEXT "; charset=%s\n",
		    disp_charset);
	}
    }
    /*
     * If we are using MIME headers, add content-base and content-location if
     * we have them.  This will always be the case if the document is source.
     * - kw
     */
    if (use_mime) {
	if (content_base)
	    fprintf(outfile_fp, "Content-Base: %s\n", content_base);
	if (content_location)
	    fprintf(outfile_fp, "Content-Location: %s\n", content_location);
    }

    /*
     * Add the To, Subject, and X-URL headers.  - FM
     */
    fprintf(outfile_fp, "To: %s\nSubject: %s\n", user_response->str, subject);
    fprintf(outfile_fp, "X-URL: %s\n\n", newdoc->address);

    if (LYPrependBaseToSource && HTisDocumentSource()) {
	/*
	 * Added the document's base as a BASE tag to the top of the message
	 * body.  May create technically invalid HTML, but will help get any
	 * partial or relative URLs resolved properly if no BASE tag is present
	 * to replace it.  - FM
	 */
	fprintf(outfile_fp,
		"<!-- X-URL: %s -->\n<BASE HREF=\"%s\">\n\n",
		newdoc->address, content_base);
    }
    print_wwwfile_to_fd(outfile_fp, TRUE, FALSE);	/* MAIL */
    if (keypad_mode)
	printlist(outfile_fp, FALSE);

#if CAN_PIPE_TO_MAILER
    pclose(outfile_fp);
#else
    LYCloseOutput(outfile_fp);
    LYSendMailFile(user_response->str,
		   my_temp,
		   subject,
		   "",
		   "");
    (void) LYRemoveTemp(my_temp);	/* Delete the tmpfile. */
#endif /* CAN_PIPE_TO_MAILER */
#endif /* USE_VMS_MAILER */

  done:			/* send_file_to_mail() */
    BStrFree(user_response);
    FREE(buffer);
    FREE(subject);
    return;
}

static void send_file_to_printer(DocInfo *newdoc,
				 char *content_base,
				 char *sug_filename,
				 int printer_number)
{
    BOOLEAN FirstRecall = TRUE;
    FILE *outfile_fp;
    char *the_command = 0;
    bstring *my_file = NULL;
    char my_temp[LY_MAXPATH];
    int FnameTotal, FnameNum = -1;
    lynx_list_item_type *cur_printer;

    outfile_fp = LYOpenTemp(my_temp,
			    (HTisDocumentSource())
			    ? HTML_SUFFIX
			    : TEXT_SUFFIX,
			    "w");
    if (outfile_fp == NULL) {
	CannotPrint(FILE_ALLOC_FAILED);
    }

    if (LYPrependBaseToSource && HTisDocumentSource()) {
	/*
	 * Added the document's base as a BASE tag to the top of the file.  May
	 * create technically invalid HTML, but will help get any partial or
	 * relative URLs resolved properly if no BASE tag is present to replace
	 * it.  - FM
	 */
	fprintf(outfile_fp,
		"<!-- X-URL: %s -->\n<BASE HREF=\"%s\">\n\n",
		newdoc->address, content_base);
    }
    print_wwwfile_to_fd(outfile_fp, FALSE, FALSE);	/* PRINTER */
    if (keypad_mode)
	printlist(outfile_fp, FALSE);

    LYCloseTempFP(outfile_fp);

    /* find the right printer number */
    {
	int count = 0;

	for (cur_printer = printers;
	     count < printer_number;
	     count++, cur_printer = cur_printer->next) ;	/* null body */
    }

    /*
     * Commands have the form "command %s [%s] [etc]" where %s is the filename
     * and the second optional %s is the suggested filename.
     */
    if (cur_printer->command == NULL) {
	CannotPrint(PRINTER_MISCONF_ERROR);
    }

    /*
     * Check for two '%s' and ask for the second filename argument if there
     * is.
     */
    BStrCopy0(my_file, "");
    if (HTCountCommandArgs(cur_printer->command) >= 2) {
	_statusline(FILENAME_PROMPT);
      again:
	SetupFilename(&my_file, sug_filename);
      check_again:
	switch (RecallFilename(&my_file, &FirstRecall, &FnameNum,
			       &FnameTotal, PRINT_FLAG)) {
	case FN_INIT:
	    goto again;
	case FN_READ:
	    goto check_again;
	case FN_QUIT:
	    goto done;
	default:
	    break;
	}

	if (no_dotfiles || !show_dotfiles) {
	    if (*LYPathLeaf(my_file->str) == '.') {
		HTAlert(FILENAME_CANNOT_BE_DOT);
		_statusline(NEW_FILENAME_PROMPT);
		FirstRecall = TRUE;
		FnameNum = FnameTotal;
		goto again;
	    }
	}
	/*
	 * Cancel if the user entered "/dev/null" on Unix, or an "nl:" path
	 * on VMS.  - FM
	 */
	if (LYIsNullDevice(my_file->str)) {
	    CancelPrint(PRINT_REQUEST_CANCELLED);
	}
	HTAddSugFilename(my_file->str);
    }
#ifdef SH_EX			/* 1999/01/04 (Mon) 09:37:03 */
    HTAddParam(&the_command, cur_printer->command, 1, my_temp);
    if (!isBEmpty(my_file)) {
	HTAddParam(&the_command, cur_printer->command, 2, my_file->str);
	HTEndParam(&the_command, cur_printer->command, 3);
    } else {
	HTEndParam(&the_command, cur_printer->command, 2);
    }
#else
    HTAddParam(&the_command, cur_printer->command, 1, my_temp);
    HTAddParam(&the_command, cur_printer->command, 2, my_file->str);
    HTEndParam(&the_command, cur_printer->command, 2);
#endif

    /*
     * Move the cursor to the top of the screen so that output from system'd
     * commands don't scroll up the screen.
     */
    LYmove(1, 1);

    stop_curses();
    CTRACE((tfp, "command: %s\n", the_command));
    SetOutputMode(O_TEXT);
    printf(PRINTING_FILE);
    /*
     * Set various bits of document information as environment variables, for
     * use by external print scripts/etc.  On UNIX, We assume there are values,
     * and leave NULL value checking up to the external PRINTER:  cmd/script -
     * KED
     */
    SET_ENVIRON(LYNX_PRINT_TITLE, HText_getTitle(), "No Title");
    SET_ENVIRON(LYNX_PRINT_URL, newdoc->address, "No URL");
    SET_ENVIRON(LYNX_PRINT_DATE, HText_getDate(), "No Date");
    SET_ENVIRON(LYNX_PRINT_LASTMOD, HText_getLastModified(), "No LastMod");

    LYSystem(the_command);
    FREE(the_command);
    (void) LYRemoveTemp(my_temp);

    /*
     * Remove the various LYNX_PRINT_xxxx logicals.  - KED
     * [could use unsetenv(), but it's not portable]
     */
    SET_ENVIRON(LYNX_PRINT_TITLE, "", "");
    SET_ENVIRON(LYNX_PRINT_URL, "", "");
    SET_ENVIRON(LYNX_PRINT_DATE, "", "");
    SET_ENVIRON(LYNX_PRINT_LASTMOD, "", "");

    fflush(stdout);
#ifndef VMS
    signal(SIGINT, cleanup_sig);
#endif /* !VMS */
#ifdef SH_EX
    fprintf(stdout, gettext(" Print job complete.\n"));
    fflush(stdout);
#endif
    SetOutputMode(O_BINARY);
    LYSleepMsg();
    start_curses();

  done:			/* send_file_to_printer() */
    BStrFree(my_file);
    return;
}

static void send_file_to_screen(DocInfo *newdoc,
				char *content_base,
				int Lpansi)
{
    FILE *outfile_fp;
    bstring *prompt = NULL;

    if (Lpansi) {
	_statusline(CHECK_PRINTER);
    } else {
	_statusline(PRESS_RETURN_TO_BEGIN);
    }

    BStrCopy0(prompt, "");
    if (LYgetBString(&prompt, FALSE, 0, NORECALL) < 0) {
	CancelPrint(PRINT_REQUEST_CANCELLED);
    } else {
	outfile_fp = stdout;

	stop_curses();
	SetOutputMode(O_TEXT);

#ifndef VMS
	signal(SIGINT, SIG_IGN);
#endif /* !VMS */

	if (LYPrependBaseToSource && HTisDocumentSource()) {
	    /*
	     * Added the document's base as a BASE tag to the top of the file.  May
	     * create technically invalid HTML, but will help get any partial or
	     * relative URLs resolved properly if no BASE tag is present to replace
	     * it.  - FM
	     */
	    fprintf(outfile_fp,
		    "<!-- X-URL: %s -->\n<BASE HREF=\"%s\">\n\n",
		    newdoc->address, content_base);
	}
	if (Lpansi)
	    printf("\033[5i");
	print_wwwfile_to_fd(outfile_fp, FALSE, FALSE);	/* SCREEN */
	if (keypad_mode)
	    printlist(outfile_fp, FALSE);

#ifdef VMS
	if (HadVMSInterrupt) {
	    HadVMSInterrupt = FALSE;
	    start_curses();
	    CancelPrint(PRINT_REQUEST_CANCELLED);
	}
#endif /* VMS */
	if (Lpansi) {
	    printf("\n\014");	/* Form feed */
	    printf("\033[4i");
	    fflush(stdout);	/* refresh to screen */
	} else {
	    fprintf(stdout, "\n\n%s", PRESS_RETURN_TO_FINISH);
	    fflush(stdout);	/* refresh to screen */
	    (void) LYgetch();	/* grab some user input to pause */
#ifdef VMS
	    HadVMSInterrupt = FALSE;
#endif /* VMS */
	}
#ifdef SH_EX
	fprintf(stdout, "\n");
#endif
	SetOutputMode(O_BINARY);
	start_curses();
    }

  done:			/* send_file_to_screen() */
    BStrFree(prompt);
    return;
}

int printfile(DocInfo *newdoc)
{
    BOOLEAN Lpansi = FALSE;
    DocAddress WWWDoc;
    char *content_base = NULL;
    char *content_location = NULL;
    char *cp = NULL;
    char *link_info = NULL;
    char *sug_filename = NULL;
    int lines_in_file = 0;
    int pagelen = 0;
    int printer_number = 0;
    int type = 0;

    /*
     * Extract useful info from URL.
     */
    StrAllocCopy(link_info, newdoc->address + 12);

    /*
     * Reload the file we want to print into memory.
     */
    LYpop(newdoc);
    WWWDoc.address = newdoc->address;
    WWWDoc.post_data = newdoc->post_data;
    WWWDoc.post_content_type = newdoc->post_content_type;
    WWWDoc.bookmark = newdoc->bookmark;
    WWWDoc.isHEAD = newdoc->isHEAD;
    WWWDoc.safe = newdoc->safe;
    if (!HTLoadAbsolute(&WWWDoc))
	return (NOT_FOUND);

    /*
     * If we have an explicit content-base, we may use it even if not in source
     * mode.  - kw
     */
    if (HText_getContentBase()) {
	StrAllocCopy(content_base, HText_getContentBase());
	LYRemoveBlanks(content_base);
	if (isEmpty(content_base)) {
	    FREE(content_base);
	}
    }
    /*
     * If document is source, load the content_base and content_location
     * strings.  - FM
     */
    if (HTisDocumentSource()) {
	if (HText_getContentLocation()) {
	    StrAllocCopy(content_location, HText_getContentLocation());
	    LYRemoveBlanks(content_location);
	    if (isEmpty(content_location)) {
		FREE(content_location);
	    }
	}
	if (!content_base) {
	    if ((content_location) && is_url(content_location)) {
		StrAllocCopy(content_base, content_location);
	    } else {
		StrAllocCopy(content_base, newdoc->address);
	    }
	}
	if (!content_location) {
	    StrAllocCopy(content_location, newdoc->address);
	}
    }

    sug_filename = suggested_filename(newdoc);

    /*
     * Get the number of lines in the file.
     */
    if ((cp = strstr(link_info, "lines=")) != NULL) {
	/*
	 * Terminate prev string here.
	 */
	*cp = '\0';
	/*
	 * Number of characters in "lines=".
	 */
	cp += 6;

	lines_in_file = atoi(cp);
    }

    /*
     * Determine the type.
     */
    if (strstr(link_info, "LOCAL_FILE")) {
	type = TO_FILE;
    } else if (strstr(link_info, "TO_SCREEN")) {
	type = TO_SCREEN;
    } else if (strstr(link_info, "LPANSI")) {
	Lpansi = TRUE;
	type = TO_SCREEN;
    } else if (strstr(link_info, "MAIL_FILE")) {
	type = MAIL;
    } else if (strstr(link_info, "PRINTER")) {
	type = PRINTER;

	if ((cp = strstr(link_info, "number=")) != NULL) {
	    /* number of characters in "number=" */
	    cp += 7;
	    printer_number = atoi(cp);
	}
	if ((cp = strstr(link_info, "pagelen=")) != NULL) {
	    /* number of characters in "pagelen=" */
	    cp += 8;
	    pagelen = atoi(cp);
	} else {
	    /* default to 66 lines */
	    pagelen = 66;
	}
    }

    /*
     * Act on the request.  - FM
     */
    switch (type) {

    case TO_FILE:
	send_file_to_file(newdoc, content_base, sug_filename);
	break;

    case MAIL:
	send_file_to_mail(newdoc, content_base, content_location);
	break;

    case TO_SCREEN:
	if (confirm_by_pages(CONFIRM_LONG_SCREEN_PRINT, lines_in_file, LYlines))
	    send_file_to_screen(newdoc, content_base, Lpansi);
	break;

    case PRINTER:
	if (confirm_by_pages(CONFIRM_LONG_PAGE_PRINT, lines_in_file, pagelen))
	    send_file_to_printer(newdoc, content_base, sug_filename, printer_number);
	break;

    }				/* end switch */

    FREE(link_info);
    FREE(sug_filename);
    FREE(content_base);
    FREE(content_location);
    return (NORMAL);
}

#if USE_VMS_MAILER
static int remove_quotes(char *string)
{
    int i;

    for (i = 0; string[i] != '\0'; i++)
	if (string[i] == '"')
	    string[i] = ' ';
	else if (string[i] == '&')
	    string[i] = ' ';
	else if (string[i] == '|')
	    string[i] = ' ';

    return (0);
}
#endif /* USE_VMS_MAILER */

/*
 * Mail subject may have 8-bit characters and they are in display charset.
 * There is no stable practice for 8-bit subject encodings:  MIME defines
 * "quoted-printable" which holds charset info but most mailers still don't
 * support it.  On the other hand many mailers send open 8-bit subjects without
 * charset info and use local assumption for certain countries.  Besides that,
 * obsolete SMTP software is not 8bit clean but still in use, it strips the
 * characters in 128-160 range from subjects which may be a fault outside
 * iso-8859-XX.
 *
 * We translate subject to "outgoing_mail_charset" (defined in lynx.cfg) it may
 * correspond to US-ASCII as the safest value or any other lynx character
 * handler, -1 for no translation (so display charset).
 *
 * Always returns a new allocated string which has to be freed.
 */
#include <LYCharUtils.h>
static char *subject_translate8bit(char *source)
{
    char *target = NULL;

    int charset_in, charset_out;

    int i = outgoing_mail_charset;	/* from lynx.cfg, -1 by default */

    StrAllocCopy(target, source);
    if (i < 0
	|| i == current_char_set
	|| LYCharSet_UC[current_char_set].enc == UCT_ENC_CJK
	|| LYCharSet_UC[i].enc == UCT_ENC_CJK) {
	return (target);	/* OK */
    } else {
	charset_out = i;
	charset_in = current_char_set;
    }

    LYUCTranslateBackHeaderText(&target, charset_in, charset_out, YES);

    return (target);
}

/*
 * print_options writes out the current printer choices to a file
 * so that the user can select printers in the same way that
 * they select all other links
 * printer links look like
 *
 * LYNXPRINT://LOCAL_FILE/lines=#	     print to a local file
 * LYNXPRINT://TO_SCREEN/lines=#	     print to the screen
 * LYNXPRINT://LPANSI/lines=#		     print to the local terminal
 * LYNXPRINT://MAIL_FILE/lines=#	     mail the file
 * LYNXPRINT://PRINTER/lines=#/number=#      print to printer number #
 */
int print_options(char **newfile,
		  const char *printed_url,
		  int lines_in_file)
{
    static char my_temp[LY_MAXPATH] = "\0";
    char *buffer = 0;
    int count;
    int pages;
    FILE *fp0;
    lynx_list_item_type *cur_printer;

    if ((fp0 = InternalPageFP(my_temp, TRUE)) == 0)
	return (-1);

    LYLocalFileToURL(newfile, my_temp);

    BeginInternalPage(fp0, PRINT_OPTIONS_TITLE, PRINT_OPTIONS_HELP);

    fprintf(fp0, "<pre>\n");

    /*  pages = lines_in_file/66 + 1; */
    pages = (lines_in_file + 65) / 66;
    HTSprintf0(&buffer,
	       "   <em>%s</em> %s\n   <em>%s</em> %d\n   <em>%s</em> %d %s %s\n",
	       gettext("Document:"), printed_url,
	       gettext("Number of lines:"), lines_in_file,
	       gettext("Number of pages:"), pages,
	       (pages > 1 ? gettext("pages") : gettext("page")),
	       gettext("(approximately)"));
    fputs(buffer, fp0);
    FREE(buffer);

    if (no_print || no_disk_save || no_mail)
	fprintf(fp0,
		"   <em>%s</em>\n",
		gettext("Some print functions have been disabled!"));

    fprintf(fp0, "\n%s\n",
	    (user_mode == NOVICE_MODE)
	    ? gettext("Standard print options:")
	    : gettext("Print options:"));

    if (no_disk_save == FALSE && no_print == FALSE) {
	fprintf(fp0,
		"   <a href=\"%s//LOCAL_FILE/lines=%d\">%s</a>\n",
		STR_LYNXPRINT,
		lines_in_file,
		gettext("Save to a local file"));
    } else {
	fprintf(fp0, "   <em>%s</em>\n", gettext("Save to disk disabled"));
    }
    if (no_mail == FALSE && local_host_only == FALSE)
	fprintf(fp0,
		"   <a href=\"%s//MAIL_FILE/lines=%d\">%s</a>\n",
		STR_LYNXPRINT,
		lines_in_file,
		gettext("Mail the file"));

#if defined(UNIX) || defined(VMS)
    fprintf(fp0,
	    "   <a href=\"%s//TO_SCREEN/lines=%d\">%s</a>\n",
	    STR_LYNXPRINT,
	    lines_in_file,
	    gettext("Print to the screen"));
    fprintf(fp0,
	    "   <a href=\"%s//LPANSI/lines=%d\">%s</a>\n",
	    STR_LYNXPRINT,
	    lines_in_file,
	    gettext("Print out on a printer attached to your vt100 terminal"));
#endif

    if (user_mode == NOVICE_MODE)
	fprintf(fp0, "\n%s\n", gettext("Local additions:"));

    for (count = 0, cur_printer = printers; cur_printer != NULL;
	 cur_printer = cur_printer->next, count++)
	if (no_print == FALSE || cur_printer->always_enabled) {
	    fprintf(fp0,
		    "   <a href=\"%s//PRINTER/number=%d/pagelen=%d/lines=%d\">",
		    STR_LYNXPRINT,
		    count, cur_printer->pagelen, lines_in_file);
	    fprintf(fp0, "%s", (cur_printer->name ?
				cur_printer->name : "No Name Given"));
	    fprintf(fp0, "</a>\n");
	}
    fprintf(fp0, "</pre>\n");
    EndInternalPage(fp0);
    LYCloseTempFP(fp0);

    LYforce_no_cache = TRUE;
    return (0);
}

/*
 * General purpose filename getter.
 *
 * Returns a pointer to an absolute filename string, if the input filename
 * exists, and is readable.  Returns NULL if the input was cancelled (^G, or CR
 * on empty input).
 *
 * The pointer to the filename string needs to be free()'d by the caller (when
 * non-NULL).
 *
 * --KED 02/21/99
 */
char *GetFileName(void)
{
    struct stat stat_info;

    bstring *fbuf = NULL;
    bstring *tbuf = NULL;
    char *result = NULL;

    BOOLEAN FirstRecall = TRUE;
    int FnameNum = -1;
    int FnameTotal;

    _statusline(FILENAME_PROMPT);

  retry:
    /*
     * No initial filename.
     */
    SetupFilename(&fbuf, "");

  check_recall:
    /*
     * Go get a filename (it would be nice to do TAB == filename-completion as
     * the name is entered, but we'll save doing that for another time.
     */
    switch (RecallFilename(&fbuf, &FirstRecall, &FnameNum,
			   &FnameTotal, GENERIC_FLAG)) {
    case FN_INIT:
	goto retry;
    case FN_READ:
	goto check_recall;
    case FN_QUIT:
	goto cleanup;
    default:
	break;
    }

    /*
     * Add raw input form to list ...  we may want to reuse/edit it on a
     * subsequent call, etc.
     */
#ifdef VMS
    if (0 == strncasecomp(fbuf->str, "sys$disk:", 9)) {
	if (0 == StrNCmp((fbuf->str + 9), "[]", 2)) {
	    HTAddSugFilename(fbuf->str + 11);
	} else {
	    HTAddSugFilename(fbuf->str + 9);
	}
    } else {
	HTAddSugFilename(fbuf->str);
    }
#else
    HTAddSugFilename(fbuf->str);
#endif /* VMS */

    /*
     * Expand tilde's, make filename absolute, etc.
     */
    BStrCopy0(tbuf, "");
    if (!LYValidateFilename(&tbuf, &fbuf))
	goto cleanup;

    /*
     * Check for file existence; readability.
     */
    if ((stat(tbuf->str, &stat_info) < 0) ||
	(!(S_ISREG(stat_info.st_mode)
#ifdef S_IFLNK
	   || S_ISLNK(stat_info.st_mode)
#endif /* S_IFLNK */
	 ))) {
	HTInfoMsg(FILE_DOES_NOT_EXIST);
	_statusline(FILE_DOES_NOT_EXIST_RE);
	FirstRecall = TRUE;
	FnameNum = FnameTotal;
	goto retry;
    }

    if (!LYCanReadFile(tbuf->str)) {
	HTInfoMsg(FILE_NOT_READABLE);
	_statusline(FILE_NOT_READABLE_RE);
	FirstRecall = TRUE;
	FnameNum = FnameTotal;
	goto retry;
    }

    /*
     * We have a valid filename, and readable file.  Return it to the caller.
     *
     * The returned pointer should be free()'d by the caller.
     */
    StrAllocCopy(result, tbuf->str);

  cleanup:
    BStrFree(fbuf);
    BStrFree(tbuf);
    return (result);
}
