--- /dev/null
+/*
+ * Parts were written/modified by:
+ * Andreas Krennmair <ak@synflood.at>
+ * Peter J. Holzer <hjp@hjp.net>
+ * Rocco Rutte <pdmef@cs.tu-berlin.de>
+ *
+ * This file is part of mutt-ng, see http://www.muttng.org/.
+ * It's licensed under the GNU General Public License,
+ * please see the file GPL in the top level source directory.
+ */
+
+#if HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <ctype.h>
+#include <sys/wait.h>
+#include <sys/stat.h>
+
+#include <lib-lib/mem.h>
+#include <lib-lib/str.h>
+#include <lib-lib/ascii.h>
+#include <lib-lib/macros.h>
+#include <lib-lib/file.h>
+
+#include <lib-ui/curses.h>
+
+#include "mutt.h"
+#include "handler.h"
+#include "state.h"
+#include "lib.h"
+
+#define FLOWED_MAX 77
+
+static int get_quote_level (char *line)
+{
+ int quoted;
+
+ for (quoted = 0; line[quoted] == '>'; quoted++);
+ return quoted;
+}
+
+static void print_flowed_line (char *line, STATE * s, int ql) {
+ int width;
+ char *pos, *oldpos;
+ int len = m_strlen(line);
+ int i;
+
+ if (MaxLineLength > 0) {
+ width = MaxLineLength - WrapMargin - ql - 1;
+ if (!(s->flags & M_REPLYING) && option (OPTSTUFFQUOTED))
+ --width;
+ if (width < 0)
+ width = MaxLineLength;
+ }
+ else {
+ if (option (OPTMBOXPANE))
+ width = COLS - SidebarWidth - WrapMargin - ql - 1;
+ else
+ width = COLS - WrapMargin - ql - 1;
+
+ if (!(s->flags & M_REPLYING) && option (OPTSTUFFQUOTED))
+ --width;
+ if (width < 0)
+ width = COLS;
+ }
+
+ if (m_strlen(line) == 0) {
+ if (!(s->flags & M_REPLYING) || option (OPTQUOTEEMPTY)) {
+ if (s->prefix)
+ state_puts(s->prefix,s);
+ for (i=0;i<ql;++i) state_putc('>',s);
+ if (!(s->flags & M_REPLYING) && option(OPTSTUFFQUOTED))
+ state_putc(' ',s);
+ }
+ state_putc('\n',s);
+ return;
+ }
+
+ pos = line + width;
+ oldpos = line;
+
+ for (; oldpos < line + len; pos += width) {
+ /* only search a new position when we're not over
+ * the end of the string w/ pos */
+ if (pos < line + len) {
+ if (*pos == ' ') {
+ *pos = '\0';
+ ++pos;
+ }
+ else {
+ char *save = pos;
+
+ while (pos >= oldpos && *pos != ' ') {
+ --pos;
+ }
+ if (pos < oldpos) {
+ pos = save;
+ while (pos < line + len && *pos && *pos != ' ') {
+ ++pos;
+ }
+ }
+ *pos = '\0';
+ ++pos;
+ }
+ }
+
+ if (s->prefix)
+ state_puts (s->prefix, s);
+
+ for (i = 0; i < ql; ++i)
+ state_putc ('>', s);
+ if (!(s->flags & M_REPLYING) && option (OPTSTUFFQUOTED) &&
+ (ql > 0 || s->prefix))
+ state_putc (' ', s);
+ state_puts (oldpos, s);
+ /* fprintf(stderr,"print_flowed_line: `%s'\n",oldpos); */
+ if (pos < line + len)
+ state_putc (' ', s);
+ state_putc ('\n', s);
+ oldpos = pos;
+ }
+}
+
+int rfc3676_handler (BODY * a, STATE * s) {
+ int bytes = a->length;
+ char buf[LONG_STRING];
+ char *curline = p_new(char, 1);
+ char *t = NULL;
+ unsigned int curline_len = 1,
+ quotelevel = 0, newql = 0;
+ int buf_off, buf_len;
+ int delsp = 0, fixed = 0;
+
+ *curline='\0';
+
+ /* respect DelSP of RfC3676 only with f=f parts */
+ if ((t = (char*) mutt_get_parameter ("delsp", a->parameter))) {
+ delsp = m_strlen(t) == 3 && ascii_strncasecmp (t, "yes", 3) == 0;
+ t = NULL;
+ }
+
+
+ while (bytes > 0 && fgets (buf, sizeof (buf), s->fpin)) {
+
+ buf_len = m_strlen(buf);
+ bytes -= buf_len;
+
+ newql = get_quote_level (buf);
+
+ /* a change of quoting level in a paragraph - shouldn't happen,
+ * but has to be handled - see RFC 3676, sec. 4.5.
+ */
+ if (newql != quotelevel && curline && *curline) {
+ print_flowed_line (curline, s, quotelevel);
+ *curline = '\0';
+ curline_len = 1;
+ }
+ quotelevel = newql;
+
+ /* XXX - If a line is longer than buf (shouldn't happen), it is split.
+ * This will almost always cause an unintended line break, and
+ * possibly a change in quoting level. But that's better than not
+ * displaying it at all.
+ */
+ if ((t = strrchr (buf, '\r')) || (t = strrchr (buf, '\n'))) {
+ *t = '\0';
+ buf_len = t - buf;
+ }
+
+ buf_off = newql;
+ /* respect space-stuffing */
+ if (buf[buf_off] == ' ')
+ buf_off++;
+
+ /* for DelSp=yes, we need to strip one SP prior to CRLF
+ * which may make the line look like fixed although it wasn't
+ * so keep this in mind for later processing */
+ fixed = buf_len == 0 || buf[buf_len - 1] != ' ' ||
+ (strcmp(buf + buf_off, "-- ") == 0);
+
+ if (delsp && buf_len >= 1 && buf[buf_len-1] == ' ')
+ buf[--buf_len] = '\0';
+
+ /* we're here when last space removed 'cause of DelSp was
+ * the last space and there isn't more -> done */
+ if ((buf_len - buf_off) < 0) {
+ print_flowed_line (curline, s, quotelevel);
+ *curline = '\0';
+ curline_len = 1;
+ continue;
+ }
+
+ /* signature separator also flushes the previous paragraph */
+ if (strcmp(buf + buf_off, "-- ") == 0 && curline && *curline) {
+ print_flowed_line (curline, s, quotelevel);
+ *curline = '\0';
+ curline_len = 1;
+ }
+
+ p_realloc(&curline, curline_len + buf_len - buf_off);
+ strcpy (curline + curline_len - 1, buf + buf_off);
+ curline_len += buf_len - buf_off;
+
+ /* if this was a fixed line the paragraph is finished */
+ if (fixed) {
+ print_flowed_line (curline, s, quotelevel);
+ *curline = '\0';
+ curline_len = 1;
+ }
+
+ }
+ p_delete(&curline);
+ return (0);
+}
+
+void rfc3676_space_stuff (HEADER* hdr) {
+ FILE* in = NULL, *out = NULL;
+ char buf[LONG_STRING];
+ char tmpfile[_POSIX_PATH_MAX];
+
+ if (!hdr || !hdr->content || !hdr->content->filename)
+ return;
+
+ if ((in = safe_fopen (hdr->content->filename, "r")) == NULL)
+ return;
+ mutt_mktemp (tmpfile);
+ if ((out = safe_fopen (tmpfile, "w+")) == NULL) {
+ fclose (in);
+ return;
+ }
+
+ while (fgets (buf, sizeof (buf), in)) {
+ if (ascii_strncmp ("From ", buf, 4) == 0 || buf[0] == ' ') {
+ fputc (' ', out);
+ }
+ fputs (buf, out);
+ }
+ fclose (in);
+ fclose (out);
+ mutt_set_mtime (hdr->content->filename, tmpfile);
+ unlink (hdr->content->filename);
+ m_strreplace(&hdr->content->filename, tmpfile);
+}
projects / apps / madmutt.git / blobdiff