#include <h/utils.h>
#include <h/signals.h>
#include <fcntl.h>
-#ifdef HAVE_ICONV
-# include <iconv.h>
-#endif
#define MHFIXMSG_SWITCHES \
X("decodetext 8bit|7bit", 0, DECODETEXTSW) \
X("nodecodetext", 0, NDECODETEXTSW) \
- X("textcodeset", 0, TEXTCODESETSW) \
- X("notextcodeset", 0, NTEXTCODESETSW) \
+ X("decodetypes", 0, DECODETYPESW) \
+ X("crlflinebreaks", 0, CRLFLINEBREAKSSW) \
+ X("nocrlflinebreaks", 0, NCRLFLINEBREAKSSW) \
+ X("textcharset", 0, TEXTCHARSETSW) \
+ X("notextcharset", 0, NTEXTCHARSETSW) \
X("reformat", 0, REFORMATSW) \
X("noreformat", 0, NREFORMATSW) \
X("replacetextplain", 0, REPLACETEXTPLAINSW) \
X("nofixboundary", 0, NFIXBOUNDARYSW) \
X("fixcte", 0, FIXCTESW) \
X("nofixcte", 0, NFIXCTESW) \
+ X("fixtype mimetype", 0, FIXTYPESW) \
X("file file", 0, FILESW) \
X("outfile file", 0, OUTFILESW) \
X("rmmproc program", 0, RPROCSW) \
X("normmproc", 0, NRPRCSW) \
+ X("changecur", 0, CHGSW) \
+ X("nochangecur", 0, NCHGSW) \
X("verbose", 0, VERBSW) \
X("noverbose", 0, NVERBSW) \
X("version", 0, VERSIONSW) \
#define quitser pipeser
/* mhparse.c */
-extern char *tmp; /* directory to place tmp files */
extern int skip_mp_cte_check; /* flag to InitMultiPart */
extern int suppress_bogus_mp_content_warning; /* flag to InitMultiPart */
extern int bogus_mp_content; /* flag from InitMultiPart */
-CT parse_mime (char *);
-void reverse_parts (CT);
+/* flags to/from parse_header_attrs */
+extern int suppress_extraneous_trailing_semicolon_warning;
+extern int extraneous_trailing_semicolon;
/* mhoutsbr.c */
int output_message (CT, char *);
-/* mhshowsbr.c */
-int show_content_aux (CT, int, int, char *, char *);
-
/* mhmisc.c */
void flush_errors (void);
typedef struct fix_transformations {
int fixboundary;
int fixcte;
+ svector_t fixtypes;
int reformat;
int replacetextplain;
int decodetext;
- char *textcodeset;
+ char *decodetypes;
+ /* Whether to use CRLF linebreaks, per RFC 2046 Sec. 4.1.1, par.1. */
+ int lf_line_endings;
+ char *textcharset;
} fix_transformations;
int mhfixmsgsbr (CT *, const fix_transformations *, char *);
-static void reverse_alternative_parts (CT);
static int fix_boundary (CT *, int *);
static int get_multipart_boundary (CT, char **);
-static int replace_boundary (CT, char *, const char *);
-static char *update_attr (char *, const char *, const char *e);
+static int replace_boundary (CT, char *, char *);
+static int fix_types (CT, svector_t, int *);
+static char *replace_substring (char **, const char *, const char *);
+static char *remove_parameter (char *, const char *);
static int fix_multipart_cte (CT, int *);
static int set_ce (CT, int);
static int ensure_text_plain (CT *, CT, int *, int);
+static int find_textplain_sibling (CT, int, int *);
+static int insert_new_text_plain_part (CT, int, CT);
static CT build_text_plain_part (CT);
+static int insert_into_new_mp_alt (CT *, int *);
static CT divide_part (CT);
static void copy_ctinfo (CI, CI);
static int decode_part (CT);
static int boundary_in_content (FILE **, char *, const char *);
static void transfer_noncontent_headers (CT, CT);
static int set_ct_type (CT, int type, int subtype, int encoding);
-static int decode_text_parts (CT, int, int *);
-static int content_encoding (CT);
+static int decode_text_parts (CT, int, const char *, int *);
+static int should_decode(const char *, const char *, const char *);
+static int content_encoding (CT, const char **);
static int strip_crs (CT, int *);
-static int convert_codesets (CT, char *, int *);
-static int convert_codeset (CT, char *, int *);
-static char *content_codeset (CT);
+static int convert_charsets (CT, char *, int *);
+static int fix_always (CT, int *);
static int write_content (CT, char *, char *, int, int);
+static void set_text_ctparams(CT, char *, int);
static int remove_file (char *);
-static void report (char *, char *, char *, ...);
-static char *upcase (char *);
+static void report (char *, char *, char *, char *, ...);
static void pipeser (int);
CT *ctp;
FILE *fp;
int using_stdin = 0;
+ int chgflag = 1;
int status = OK;
fix_transformations fx;
fx.reformat = fx.fixcte = fx.fixboundary = 1;
+ fx.fixtypes = NULL;
fx.replacetextplain = 0;
fx.decodetext = CE_8BIT;
- fx.textcodeset = NULL;
-
- done = freects_done;
+ fx.decodetypes = "text,application/ics"; /* Default, per man page. */
+ fx.lf_line_endings = 0;
+ fx.textcharset = NULL;
-#ifdef LOCALE
- setlocale(LC_ALL, "");
-#endif
- invo_name = r1bindex (argv[0], '/');
+ if (nmh_init(argv[0], 1)) { return 1; }
- /* read user profile/context */
- context_read();
+ done = freects_done;
arguments = getarguments (invo_name, argc, argv, 1);
argp = arguments;
case NDECODETEXTSW:
fx.decodetext = 0;
continue;
- case TEXTCODESETSW:
+ case DECODETYPESW:
+ if (! (cp = *argp++) || *cp == '-')
+ adios (NULL, "missing argument to %s", argp[-2]);
+ fx.decodetypes = cp;
+ continue;
+ case CRLFLINEBREAKSSW:
+ fx.lf_line_endings = 0;
+ continue;
+ case NCRLFLINEBREAKSSW:
+ fx.lf_line_endings = 1;
+ continue;
+ case TEXTCHARSETSW:
if (! (cp = *argp++) || (*cp == '-' && cp[1]))
adios (NULL, "missing argument to %s", argp[-2]);
- fx.textcodeset = cp;
+ fx.textcharset = cp;
continue;
- case NTEXTCODESETSW:
- fx.textcodeset = 0;
+ case NTEXTCHARSETSW:
+ fx.textcharset = 0;
continue;
case FIXBOUNDARYSW:
fx.fixboundary = 1;
case NFIXCTESW:
fx.fixcte = 0;
continue;
+ case FIXTYPESW:
+ if (! (cp = *argp++) || (*cp == '-' && cp[1]))
+ adios (NULL, "missing argument to %s", argp[-2]);
+ if (! strncasecmp (cp, "multipart/", 10) ||
+ ! strncasecmp (cp, "message/", 8)) {
+ adios (NULL, "-fixtype %s not allowed", cp);
+ } else if (! strchr (cp, '/')) {
+ adios (NULL, "-fixtype requires type/subtype");
+ }
+ if (fx.fixtypes == NULL) { fx.fixtypes = svector_create (10); }
+ svector_push_back (fx.fixtypes, cp);
+ continue;
case REFORMATSW:
fx.reformat = 1;
continue;
case NRPRCSW:
rmmproc = NULL;
continue;
+ case CHGSW:
+ chgflag = 1;
+ continue;
+ case NCHGSW:
+ chgflag = 0;
+ continue;
case VERBSW:
verbosw = 1;
continue;
fclose (fp);
}
- /*
- * Check for storage directory. If specified,
- * then store temporary files there. Else we
- * store them in standard nmh directory.
- */
- if ((cp = context_find (nmhstorage)) && *cp)
- tmp = concat (cp, "/", invo_name, NULL);
- else
- tmp = add (m_maildir (invo_name), NULL);
-
suppress_bogus_mp_content_warning = skip_mp_cte_check = 1;
+ suppress_extraneous_trailing_semicolon_warning = 1;
if (! context_find ("path"))
free (path ("./", TFOLDER));
using_stdin = 1;
- if ((cp = m_mktemp2 (tmp, invo_name, &fd, NULL)) == NULL) {
- adios (NULL, "unable to create temporary file");
+ if ((cp = m_mktemp2 (NULL, invo_name, &fd, NULL)) == NULL) {
+ adios (NULL, "unable to create temporary file in %s",
+ get_temp_dir());
} else {
free (file);
file = add (cp, NULL);
- chmod (file, 0600);
cpydata (STDIN_FILENO, fd, "-", file);
}
if (close (fd)) {
- unlink (file);
+ (void) m_unlink (file);
adios (NULL, "failed to write temporary file");
}
}
- if (! (cts = (CT *) calloc ((size_t) 2, sizeof *cts)))
+ if (! (cts = (CT *) mh_xcalloc ((size_t) 2, sizeof *cts))) {
adios (NULL, "out of memory");
+ }
ctp = cts;
- if ((ct = parse_mime (file))) *ctp++ = ct;
+ if ((ct = parse_mime (file))) {
+ set_text_ctparams(ct, fx.decodetypes, fx.lf_line_endings);
+ *ctp++ = ct;
+ }
} else {
/*
* message(s) are coming from a folder
done (1);
seq_setprev (mp); /* set the previous-sequence */
- if (! (cts = (CT *) calloc ((size_t) (mp->numsel + 1), sizeof *cts)))
+ if (! (cts =
+ (CT *) mh_xcalloc ((size_t) (mp->numsel + 1), sizeof *cts))) {
adios (NULL, "out of memory");
+ }
ctp = cts;
for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
char *msgnam;
msgnam = m_name (msgnum);
- if ((ct = parse_mime (msgnam))) *ctp++ = ct;
+ if ((ct = parse_mime (msgnam))) {
+ set_text_ctparams(ct, fx.decodetypes, fx.lf_line_endings);
+ *ctp++ = ct;
+ }
}
}
- seq_setcur (mp, mp->hghsel); /* update current message */
+ if (chgflag) {
+ seq_setcur (mp, mp->hghsel); /* update current message */
+ }
seq_save (mp); /* synchronize sequences */
context_replace (pfolder, folder);/* update current folder */
context_save (); /* save the context file */
status += mhfixmsgsbr (ctp, &fx, outfile);
if (using_stdin) {
- unlink (file);
+ (void) m_unlink (file);
if (! outfile) {
/* Just calling m_backup() unlinks the backup file. */
status = 1;
}
+ if (fx.fixtypes != NULL) { svector_free (fx.fixtypes); }
free (outfile);
- free (tmp);
free (file);
/* done is freects_done, which will clean up all of cts. */
modify_inplace = 1;
if ((*ctp)->c_file) {
- outfile = add (m_mktemp2 (tmp, invo_name, NULL, NULL), NULL);
+ char *tempfile;
+ if ((tempfile = m_mktemp2 (NULL, invo_name, NULL, NULL)) == NULL) {
+ adios (NULL, "unable to create temporary file in %s",
+ get_temp_dir());
+ }
+ outfile = add (tempfile, NULL);
} else {
adios (NULL, "missing both input and output filenames\n");
}
}
reverse_alternative_parts (*ctp);
+ status = fix_always (*ctp, &message_mods);
if (status == OK && fx->fixboundary) {
status = fix_boundary (ctp, &message_mods);
}
+ if (status == OK && fx->fixtypes != NULL) {
+ status = fix_types (*ctp, fx->fixtypes, &message_mods);
+ }
if (status == OK && fx->fixcte) {
status = fix_multipart_cte (*ctp, &message_mods);
}
ensure_text_plain (ctp, NULL, &message_mods, fx->replacetextplain);
}
if (status == OK && fx->decodetext) {
- status = decode_text_parts (*ctp, fx->decodetext, &message_mods);
+ status = decode_text_parts (*ctp, fx->decodetext, fx->decodetypes, &message_mods);
}
- if (status == OK && fx->textcodeset != NULL) {
- status = convert_codesets (*ctp, fx->textcodeset, &message_mods);
+ if (status == OK && fx->textcharset != NULL) {
+ status = convert_charsets (*ctp, fx->textcharset, &message_mods);
}
- if (! (*ctp)->c_umask) {
+ if (status == OK && ! (*ctp)->c_umask) {
/* Set the umask for the contents file. This currently
isn't used but just in case it is in the future. */
struct stat st;
}
if (modify_inplace) {
- if (status != OK) unlink (outfile);
+ if (status != OK) { (void) m_unlink (outfile); }
free (outfile);
outfile = NULL;
}
}
-/* parse_mime() arranges alternates in reverse (priority) order, so
- reverse them back. This will put a text/plain part at the front of
- a multipart/alternative part, for example, where it belongs. */
-static void
-reverse_alternative_parts (CT ct) {
- if (ct->c_type == CT_MULTIPART) {
- struct multipart *m = (struct multipart *) ct->c_ctparams;
- struct part *part;
-
- if (ct->c_subtype == MULTI_ALTERNATE) {
- reverse_parts (ct);
- }
-
- /* And call recursively on each part of a multipart. */
- for (part = m->mp_parts; part; part = part->mp_next) {
- reverse_alternative_parts (part->mp_part);
- }
- }
-}
-
-
static int
fix_boundary (CT *ct, int *message_mods) {
struct multipart *mp;
int status = OK;
- if (bogus_mp_content) {
+ if (ct && (*ct)->c_type == CT_MULTIPART && bogus_mp_content) {
mp = (struct multipart *) (*ct)->c_ctparams;
/*
if (get_multipart_boundary (*ct, &part_boundary) == OK) {
char *fixed;
- if ((fixed = m_mktemp2 (tmp, invo_name, NULL, &(*ct)->c_fp))) {
+ if ((fixed = m_mktemp2 (NULL, invo_name, NULL, &(*ct)->c_fp))) {
if (replace_boundary (*ct, fixed, part_boundary) == OK) {
char *filename = add ((*ct)->c_file, NULL);
+ CT fixed_ct;
free_content (*ct);
- if ((*ct = parse_mime (fixed))) {
+ if ((fixed_ct = parse_mime (fixed))) {
+ *ct = fixed_ct;
(*ct)->c_unlink = 1;
++*message_mods;
if (verbosw) {
- report (NULL, filename,
+ report (NULL, NULL, filename,
"fix multipart boundary");
}
+ } else {
+ *ct = NULL;
+ advise (NULL, "unable to parse fixed part");
+ status = NOTOK;
}
free (filename);
} else {
status = NOTOK;
}
} else {
- advise (NULL, "unable to create temporary file");
+ advise (NULL, "unable to create temporary file in %s",
+ get_temp_dir());
status = NOTOK;
}
free (part_boundary);
+ } else {
+ /* Couldn't fix the boundary. Report failure so that mhfixmsg
+ doesn't modify the message. */
+ status = NOTOK;
}
+ } else {
+ /* No multipart struct, even though the content type is
+ CT_MULTIPART. Report failure so that mhfixmsg doesn't modify
+ the message. */
+ status = NOTOK;
}
}
while (begin >= (off_t) ct->c_begin) {
fseeko (ct->c_fp, begin, SEEK_SET);
while ((bytes_read = fread (buffer, 1, sizeof buffer, ct->c_fp)) > 0) {
- char *end = buffer + bytes_read - 1;
- char *cp;
+ char *cp = rfind_str (buffer, bytes_read, "--");
+
+ if (cp) {
+ char *end;
- if ((cp = rfind_str (buffer, bytes_read, "--"))) {
/* Trim off trailing "--" and anything beyond. */
*cp-- = '\0';
if ((end = rfind_str (buffer, cp - buffer, "\n"))) {
/* Open and copy ct->c_file to file, replacing the multipart boundary. */
static int
-replace_boundary (CT ct, char *file, const char *boundary) {
+replace_boundary (CT ct, char *file, char *boundary) {
FILE *fpin, *fpout;
int compnum, state;
char buf[BUFSIZ], name[NAMESZ];
if (strcasecmp (TYPE_FIELD, np)) {
fprintf (fpout, "%s:%s", np, vp);
} else {
- char *new_boundary = update_attr (vp, "boundary=", boundary);
-
- fprintf (fpout, "%s:%s\n", np, new_boundary);
- free (new_boundary);
+ char *new_ctline, *new_params;
+
+ replace_param(&ct->c_ctinfo.ci_first_pm,
+ &ct->c_ctinfo.ci_last_pm, "boundary",
+ boundary, 0);
+
+ new_ctline = concat(" ", ct->c_ctinfo.ci_type, "/",
+ ct->c_ctinfo.ci_subtype, NULL);
+ new_params = output_params(strlen(TYPE_FIELD) +
+ strlen(new_ctline) + 1,
+ ct->c_ctinfo.ci_first_pm, NULL, 0);
+ fprintf (fpout, "%s:%s%s\n", np, new_ctline,
+ new_params ? new_params : "");
+ free(new_ctline);
+ if (new_params)
+ free(new_params);
}
free (vp);
case BODY:
fputs ("\n", fpout);
/* buf will have a terminating NULL, skip it. */
- fwrite (buf, 1, bufsz-1, fpout);
+ if ((int) fwrite (buf, 1, bufsz-1, fpout) < bufsz-1) {
+ advise (file, "fwrite");
+ }
continue;
case FILEEOF:
}
-/* Change the value of a name=value pair in a header field body.
- If the name isn't there, append them. In any case, a new
- string will be allocated and must be free'd by the caller.
- Trims any trailing newlines. */
-static char *
-update_attr (char *body, const char *name, const char *value) {
- char *bp = nmh_strcasestr (body, name);
- char *new_body;
+static int
+fix_types (CT ct, svector_t fixtypes, int *message_mods) {
+ int status = OK;
- if (bp) {
- char *other_attrs = strchr (bp, ';');
+ switch (ct->c_type) {
+ case CT_MULTIPART: {
+ struct multipart *m = (struct multipart *) ct->c_ctparams;
+ struct part *part;
- *(bp + strlen (name)) = '\0';
- new_body = concat (body, "\"", value, "\"", NULL);
+ for (part = m->mp_parts; status == OK && part; part = part->mp_next) {
+ status = fix_types (part->mp_part, fixtypes, message_mods);
+ }
+ break;
+ }
- if (other_attrs) {
- char *cp;
+ case CT_MESSAGE:
+ if (ct->c_subtype == MESSAGE_EXTERNAL) {
+ struct exbody *e = (struct exbody *) ct->c_ctparams;
+
+ status = fix_types (e->eb_content, fixtypes, message_mods);
+ }
+ break;
+
+ default: {
+ char **typep, *type;
+
+ if (ct->c_ctinfo.ci_type && ct->c_ctinfo.ci_subtype) {
+ for (typep = svector_strs (fixtypes);
+ typep && (type = *typep);
+ ++typep) {
+ char *type_subtype =
+ concat (ct->c_ctinfo.ci_type, "/", ct->c_ctinfo.ci_subtype,
+ NULL);
+
+ if (! strcasecmp (type, type_subtype) &&
+ decode_part (ct) == OK &&
+ ct->c_cefile.ce_file != NULL) {
+ char *ct_type_subtype = mime_type (ct->c_cefile.ce_file);
+ char *cp;
+
+ if ((cp = strchr (ct_type_subtype, ';'))) {
+ /* Truncate to remove any parameter list from
+ mime_type () result. */
+ *cp = '\0';
+ }
+
+ if (strcasecmp (type, ct_type_subtype)) {
+ char *ct_type, *ct_subtype;
+ HF hf;
+
+ /* The Content-Type header does not match the
+ content, so update these struct Content
+ fields to match:
+ * c_type, c_subtype
+ * c_ctinfo.ci_type, c_ctinfo.ci_subtype
+ * c_ctline
+ */
+ /* Extract type and subtype from type/subtype. */
+ ct_type = getcpy (ct_type_subtype);
+ if ((cp = strchr (ct_type, '/'))) {
+ *cp = '\0';
+ ct_subtype = getcpy (++cp);
+ } else {
+ advise (NULL, "missing / in MIME type of %s %s",
+ ct->c_file, ct->c_partno);
+ free (ct_type);
+ return NOTOK;
+ }
+
+ ct->c_type = ct_str_type (ct_type);
+ ct->c_subtype = ct_str_subtype (ct->c_type, ct_subtype);
+
+ free (ct->c_ctinfo.ci_type);
+ ct->c_ctinfo.ci_type = ct_type;
+ free (ct->c_ctinfo.ci_subtype);
+ ct->c_ctinfo.ci_subtype = ct_subtype;
+ if (! replace_substring (&ct->c_ctline, type,
+ ct_type_subtype)) {
+ advise (NULL, "did not find %s in %s",
+ type, ct->c_ctline);
+ }
- /* Trim any trailing newlines. */
- for (cp = &other_attrs[strlen (other_attrs) - 1];
- cp > other_attrs && *cp == '\n';
- *cp-- = '\0') continue;
- new_body = add (other_attrs, new_body);
+ /* Update Content-Type header field. */
+ for (hf = ct->c_first_hf; hf; hf = hf->next) {
+ if (! strcasecmp (TYPE_FIELD, hf->name)) {
+ if (replace_substring (&hf->value, type,
+ ct_type_subtype)) {
+ ++*message_mods;
+ if (verbosw) {
+ report (NULL, ct->c_partno, ct->c_file,
+ "change Content-Type in header "
+ "from %s to %s",
+ type, ct_type_subtype);
+ }
+ break;
+ } else {
+ advise (NULL, "did not find %s in %s",
+ type, hf->value);
+ }
+ }
+ }
+ }
+ free (ct_type_subtype);
+ }
+ free (type_subtype);
+ }
}
+ }}
+
+ return status;
+}
+
+char *
+replace_substring (char **str, const char *old, const char *new) {
+ char *cp;
+
+ if ((cp = strstr (*str, old))) {
+ char *remainder = cp + strlen (old);
+ char *prefix, *new_str;
+
+ if (cp - *str) {
+ prefix = getcpy (*str);
+ *(prefix + (cp - *str)) = '\0';
+ new_str = concat (prefix, new, remainder, NULL);
+ free (prefix);
+ } else {
+ new_str = concat (new, remainder, NULL);
+ }
+
+ free (*str);
+
+ return *str = new_str;
} else {
- char *cp;
+ return NULL;
+ }
+}
+
+/*
+ * Remove a name=value parameter, given just its name, from a header value.
+ */
+char *
+remove_parameter (char *str, const char *name) {
+ /* It looks to me, based on the BNF in RFC 2045, than there can't
+ be whitespace betwwen the parameter name and the "=", or
+ between the "=" and the parameter value. */
+ char *param_name = concat (name, "=", NULL);
+ char *cp;
+
+ if ((cp = strstr (str, param_name))) {
+ char *start, *end;
+ size_t count = 1;
+
+ /* Remove any leading spaces, before the parameter name. */
+ for (start = cp;
+ start > str && isspace ((unsigned char) *(start-1));
+ --start) {
+ continue;
+ }
+ /* Remove a leading semicolon. */
+ if (start > str && *(start-1) == ';') { --start; }
+
+ end = cp + strlen (name) + 1;
+ if (*end == '"') {
+ /* Skip past the quoted value, and then the final quote. */
+ for (++end ; *end && *end != '"'; ++end) { continue; }
+ ++end;
+ } else {
+ /* Skip past the value. */
+ for (++end ; *end && ! isspace ((unsigned char) *end); ++end) {}
+ }
- /* Append name/value pair, after first removing a final newline
- and (extraneous) semicolon. */
- if (*(cp = &body[strlen (body) - 1]) == '\n') *cp = '\0';
- if (*(cp = &body[strlen (body) - 1]) == ';') *cp = '\0';
- new_body = concat (body, "; ", name, "\"", value, "\"", NULL);
+ /* Count how many characters need to be moved. Include
+ trailing null, which is accounted for by the
+ initialization of count to 1. */
+ for (cp = end; *cp; ++cp) { ++count; }
+ (void) memmove (start, end, count);
}
- return new_body;
-}
+ free (param_name);
+ return str;
+}
static int
fix_multipart_cte (CT ct, int *message_mods) {
++*message_mods;
if (verbosw) {
char *encoding = cpytrim (hf->value);
- report (ct->c_partno, ct->c_file,
+ report (NULL, ct->c_partno, ct->c_file,
"replace Content-Transfer-Encoding of %s "
"with 8 bit", encoding);
free (encoding);
switch ((*ct)->c_type) {
case CT_TEXT: {
- int has_text_plain = 0;
-
/* Nothing to do for text/plain. */
- if ((*ct)->c_subtype == TEXT_PLAIN) return OK;
+ if ((*ct)->c_subtype == TEXT_PLAIN) { return OK; }
if (parent && parent->c_type == CT_MULTIPART &&
parent->c_subtype == MULTI_ALTERNATE) {
- struct multipart *mp = (struct multipart *) parent->c_ctparams;
- struct part *part, *prev;
int new_subpart_number = 1;
-
- /* See if there is a sibling text/plain. */
- for (prev = part = mp->mp_parts; part; part = part->mp_next) {
- ++new_subpart_number;
- if (part->mp_part->c_type == CT_TEXT &&
- part->mp_part->c_subtype == TEXT_PLAIN) {
- if (replacetextplain) {
- struct part *old_part;
- if (part == mp->mp_parts) {
- old_part = mp->mp_parts;
- mp->mp_parts = part->mp_next;
- } else {
- old_part = prev->mp_next;
- prev->mp_next = part->mp_next;
- }
- if (verbosw) {
- report (parent->c_partno, parent->c_file,
- "remove text/plain part %s",
- old_part->mp_part->c_partno);
- }
- free_content (old_part->mp_part);
- free (old_part);
- } else {
- has_text_plain = 1;
- }
- break;
- }
- prev = part;
- }
+ int has_text_plain =
+ find_textplain_sibling (parent, replacetextplain,
+ &new_subpart_number);
if (! has_text_plain) {
/* Parent is a multipart/alternative. Insert a new
text/plain subpart. */
- struct part *new_part = mh_xmalloc (sizeof *new_part);
-
- if ((new_part->mp_part = build_text_plain_part (*ct))) {
- char buffer[16];
- snprintf (buffer, sizeof buffer, "%d", new_subpart_number);
-
- new_part->mp_next = mp->mp_parts;
- mp->mp_parts = new_part;
- new_part->mp_part->c_partno =
- concat (parent->c_partno ? parent->c_partno : "1", ".",
- buffer, NULL);
-
+ const int inserted =
+ insert_new_text_plain_part (*ct, new_subpart_number,
+ parent);
+ if (inserted) {
++*message_mods;
if (verbosw) {
- report (parent->c_partno, parent->c_file,
+ report (NULL, parent->c_partno, parent->c_file,
"insert text/plain part");
}
} else {
- free_content (new_part->mp_part);
- free (new_part);
status = NOTOK;
}
}
- } else {
- /* Slip new text/plain part into a new multipart/alternative. */
- CT tp_part = build_text_plain_part (*ct);
+ } else if (parent && parent->c_type == CT_MULTIPART &&
+ parent->c_subtype == MULTI_RELATED) {
+ char *type_subtype =
+ concat ((*ct)->c_ctinfo.ci_type, "/",
+ (*ct)->c_ctinfo.ci_subtype, NULL);
+ const char *parent_type =
+ get_param (parent->c_ctinfo.ci_first_pm, "type", '?', 1);
+ int new_subpart_number = 1;
+ int has_text_plain = 0;
+
+ /* Have to do string comparison on the subtype because we
+ don't enumerate all of them in c_subtype values.
+ parent_type will be NULL if the multipart/related part
+ doesn't have a type parameter. The type parameter must
+ be specified according to RFC 2387 Sec. 3.1 but not all
+ messages comply. */
+ if (parent_type && strcasecmp (type_subtype, parent_type) == 0) {
+ /* The type of this part matches the root type of the
+ parent multipart/related. Look to see if there's
+ text/plain sibling. */
+ has_text_plain =
+ find_textplain_sibling (parent, replacetextplain,
+ &new_subpart_number);
+ }
- if (tp_part) {
- CT mp_alt = build_multipart_alt (*ct, tp_part, CT_MULTIPART,
- MULTI_ALTERNATE);
- if (mp_alt) {
- struct multipart *mp =
- (struct multipart *) mp_alt->c_ctparams;
+ free (type_subtype);
- if (mp && mp->mp_parts) {
- mp->mp_parts->mp_part = tp_part;
- /* Make the new multipart/alternative the parent. */
- *ct = mp_alt;
+ if (! has_text_plain) {
+ struct multipart *mp = (struct multipart *) parent->c_ctparams;
+ struct part *part;
+ int siblings = 0;
- ++*message_mods;
- if (verbosw) {
- report ((*ct)->c_partno, (*ct)->c_file,
- "insert text/plain part");
+ for (part = mp->mp_parts; part; part = part->mp_next) {
+ if (*ct != part->mp_part) {
+ ++siblings;
+ }
+ }
+
+ if (siblings) {
+ /* Parent is a multipart/related. Insert a new
+ text/plain subpart in a new multipart/alternative. */
+ if (insert_into_new_mp_alt (ct, message_mods)) {
+ /* Not an error if text/plain couldn't be added. */
+ }
+ } else {
+ /* There are no siblings, so insert a new text/plain
+ subpart, and change the parent type from
+ multipart/related to multipart/alternative. */
+ const int inserted =
+ insert_new_text_plain_part (*ct, new_subpart_number,
+ parent);
+
+ if (inserted) {
+ HF hf;
+
+ parent->c_subtype = MULTI_ALTERNATE;
+ parent->c_ctinfo.ci_subtype = getcpy ("alternative");
+ if (! replace_substring (&parent->c_ctline, "/related",
+ "/alternative")) {
+ advise (NULL,
+ "did not find multipart/related in %s",
+ parent->c_ctline);
+ }
+
+ /* Update Content-Type header field. */
+ for (hf = parent->c_first_hf; hf; hf = hf->next) {
+ if (! strcasecmp (TYPE_FIELD, hf->name)) {
+ if (replace_substring (&hf->value, "/related",
+ "/alternative")) {
+ ++*message_mods;
+ if (verbosw) {
+ report (NULL, parent->c_partno,
+ parent->c_file,
+ "insert text/plain part");
+ }
+
+ /* Remove, e.g., type="text/html" from
+ multipart/alternative. */
+ remove_parameter (hf->value, "type");
+ break;
+ } else {
+ advise (NULL, "did not find multipart/"
+ "related in header %s",
+ hf->value);
+ }
+ }
}
} else {
- free_content (tp_part);
- free_content (mp_alt);
- status = NOTOK;
+ /* Not an error if text/plain couldn't be inserted. */
}
- } else {
- status = NOTOK;
}
- } else {
+ }
+ } else {
+ if (insert_into_new_mp_alt (ct, message_mods)) {
status = NOTOK;
}
}
case CT_MESSAGE:
if ((*ct)->c_subtype == MESSAGE_EXTERNAL) {
- struct exbody *e;
+ struct exbody *e = (struct exbody *) (*ct)->c_ctparams;
- e = (struct exbody *) (*ct)->c_ctparams;
status = ensure_text_plain (&e->eb_content, *ct, message_mods,
replacetextplain);
}
}
+/* See if there is a sibling text/plain. */
+static int
+find_textplain_sibling (CT parent, int replacetextplain,
+ int *new_subpart_number) {
+ struct multipart *mp = (struct multipart *) parent->c_ctparams;
+ struct part *part, *prev;
+ int has_text_plain = 0;
+
+ for (prev = part = mp->mp_parts; part; part = part->mp_next) {
+ ++*new_subpart_number;
+ if (part->mp_part->c_type == CT_TEXT &&
+ part->mp_part->c_subtype == TEXT_PLAIN) {
+ if (replacetextplain) {
+ struct part *old_part;
+ if (part == mp->mp_parts) {
+ old_part = mp->mp_parts;
+ mp->mp_parts = part->mp_next;
+ } else {
+ old_part = prev->mp_next;
+ prev->mp_next = part->mp_next;
+ }
+ if (verbosw) {
+ report (NULL, parent->c_partno, parent->c_file,
+ "remove text/plain part %s",
+ old_part->mp_part->c_partno);
+ }
+ free_content (old_part->mp_part);
+ free (old_part);
+ } else {
+ has_text_plain = 1;
+ }
+ break;
+ }
+ prev = part;
+ }
+
+ return has_text_plain;
+}
+
+
+static int
+insert_new_text_plain_part (CT ct, int new_subpart_number, CT parent) {
+ struct multipart *mp = (struct multipart *) parent->c_ctparams;
+ struct part *new_part = mh_xmalloc (sizeof *new_part);
+
+ if ((new_part->mp_part = build_text_plain_part (ct))) {
+ char buffer[16];
+ snprintf (buffer, sizeof buffer, "%d", new_subpart_number);
+
+ new_part->mp_next = mp->mp_parts;
+ mp->mp_parts = new_part;
+ new_part->mp_part->c_partno =
+ concat (parent->c_partno ? parent->c_partno : "1", ".",
+ buffer, NULL);
+
+ return 1;
+ } else {
+ free_content (new_part->mp_part);
+ free (new_part);
+
+ return 0;
+ }
+}
+
+
static CT
build_text_plain_part (CT encoded_part) {
CT tp_part = divide_part (encoded_part);
contains the decoded contents. And the decoding function, such
as openQuoted, will have set ...->ce_unlink to 1 so that it will
be unlinked by free_content (). */
- tmp_plain_file = add (m_mktemp2 (tmp, invo_name, NULL, NULL), NULL);
- if (reformat_part (tp_part, tmp_plain_file,
- tp_part->c_ctinfo.ci_type,
- tp_part->c_ctinfo.ci_subtype,
- tp_part->c_type) == OK) {
- return tp_part;
+ char *tempfile;
+
+ if ((tempfile = m_mktemp2 (NULL, invo_name, NULL, NULL)) == NULL) {
+ advise (NULL, "unable to create temporary file in %s",
+ get_temp_dir());
+ } else {
+ tmp_plain_file = add (tempfile, NULL);
+ if (reformat_part (tp_part, tmp_plain_file,
+ tp_part->c_ctinfo.ci_type,
+ tp_part->c_ctinfo.ci_subtype,
+ tp_part->c_type) == OK) {
+ return tp_part;
+ }
}
}
free_content (tp_part);
- unlink (tmp_plain_file);
+ if (tmp_plain_file) { (void) m_unlink (tmp_plain_file); }
free (tmp_plain_file);
return NULL;
}
+/* Slip new text/plain part into a new multipart/alternative. */
+static int
+insert_into_new_mp_alt (CT *ct, int *message_mods) {
+ CT tp_part = build_text_plain_part (*ct);
+ int status = OK;
+
+ if (tp_part) {
+ CT mp_alt = build_multipart_alt (*ct, tp_part, CT_MULTIPART,
+ MULTI_ALTERNATE);
+ if (mp_alt) {
+ struct multipart *mp = (struct multipart *) mp_alt->c_ctparams;
+
+ if (mp && mp->mp_parts) {
+ mp->mp_parts->mp_part = tp_part;
+ /* Make the new multipart/alternative the parent. */
+ *ct = mp_alt;
+
+ ++*message_mods;
+ if (verbosw) {
+ report (NULL, (*ct)->c_partno, (*ct)->c_file,
+ "insert text/plain part");
+ }
+ } else {
+ free_content (tp_part);
+ free_content (mp_alt);
+ status = NOTOK;
+ }
+ } else {
+ status = NOTOK;
+ }
+ } else {
+ /* Not an error if text/plain couldn't be built. */
+ }
+
+ return status;
+}
+
static CT
divide_part (CT ct) {
CT new_part;
- if ((new_part = (CT) calloc (1, sizeof *new_part)) == NULL)
+ if ((new_part = (CT) mh_xcalloc (1, sizeof *new_part)) == NULL)
adios (NULL, "out of memory");
/* Just copy over what is needed for decoding. c_vrsn and
static void
copy_ctinfo (CI dest, CI src) {
- char **s_ap, **d_ap, **s_vp, **d_vp;
+ PM s_pm, d_pm;
dest->ci_type = src->ci_type ? add (src->ci_type, NULL) : NULL;
dest->ci_subtype = src->ci_subtype ? add (src->ci_subtype, NULL) : NULL;
- for (s_ap = src->ci_attrs, d_ap = dest->ci_attrs,
- s_vp = src->ci_values, d_vp = dest->ci_values;
- *s_ap;
- ++s_ap, ++d_ap, ++s_vp, ++d_vp) {
- *d_ap = add (*s_ap, NULL);
- *d_vp = *s_vp;
+ for (s_pm = src->ci_first_pm; s_pm; s_pm = s_pm->pm_next) {
+ d_pm = add_param(&dest->ci_first_pm, &dest->ci_last_pm, s_pm->pm_name,
+ s_pm->pm_value, 0);
+ if (s_pm->pm_charset)
+ d_pm->pm_charset = getcpy(s_pm->pm_charset);
+ if (s_pm->pm_lang)
+ d_pm->pm_lang = getcpy(s_pm->pm_lang);
}
- *d_ap = NULL;
dest->ci_comment = src->ci_comment ? add (src->ci_comment, NULL) : NULL;
dest->ci_magic = src->ci_magic ? add (src->ci_magic, NULL) : NULL;
decode_part (CT ct) {
char *tmp_decoded;
int status;
+ char *tempfile;
- tmp_decoded = add (m_mktemp2 (tmp, invo_name, NULL, NULL), NULL);
+ if ((tempfile = m_mktemp2 (NULL, invo_name, NULL, NULL)) == NULL) {
+ adios (NULL, "unable to create temporary file in %s", get_temp_dir());
+ }
+ tmp_decoded = add (tempfile, NULL);
/* The following call will load ct->c_cefile.ce_file with the tmp
filename of the decoded content. tmp_decoded will contain the
encoded output, get rid of that. */
status = output_message (ct, tmp_decoded);
- unlink (tmp_decoded);
+ (void) m_unlink (tmp_decoded);
free (tmp_decoded);
return status;
Could show_multi() in mhshowsbr.c avoid this? */
/* Check for invo_name-format-type/subtype. */
- cp = concat (invo_name, "-format-", type, "/", subtype, NULL);
- if ((cf = context_find (cp)) && *cf != '\0') {
+ if ((cf = context_find_by_type ("format", type, subtype)) == NULL) {
+ if (verbosw) {
+ advise (NULL, "Don't know how to convert %s, there is no "
+ "%s-format-%s/%s profile entry",
+ ct->c_file, invo_name, type, subtype);
+ }
+ return NOTOK;
+ } else {
if (strchr (cf, '>')) {
- free (cp);
advise (NULL, "'>' prohibited in \"%s\",\nplease fix your "
"%s-format-%s/%s profile entry", cf, invo_name, type,
- subtype);
- return NOTOK;
- }
- } else {
- free (cp);
-
- /* Check for invo_name-format-type. */
- cp = concat (invo_name, "-format-", type, NULL);
- if (! (cf = context_find (cp)) || *cf == '\0') {
- free (cp);
- if (verbosw) {
- advise (NULL, "Don't know how to convert %s, there is no "
- "%s-format-%s/%s profile entry",
- ct->c_file, invo_name, type, subtype);
- }
- return NOTOK;
- }
+ subtype ? subtype : "");
- if (strchr (cf, '>')) {
- free (cp);
- advise (NULL, "'>' prohibited in \"%s\"", cf);
return NOTOK;
}
}
- free (cp);
cp = concat (cf, " >", file, NULL);
- status = show_content_aux (ct, 1, 0, cp, NULL);
+ status = show_content_aux (ct, 0, cp, NULL, NULL);
free (cp);
/* Unlink decoded content tmp file and free its filename to avoid
leaks. The file stream should already have been closed. */
if (ct->c_cefile.ce_unlink) {
- unlink (ct->c_cefile.ce_file);
+ (void) m_unlink (ct->c_cefile.ce_file);
free (ct->c_cefile.ce_file);
ct->c_cefile.ce_file = NULL;
ct->c_cefile.ce_unlink = 0;
/* Identifies 7bit or 8bit content based on charset. */
static int
charset_encoding (CT ct) {
- /* norm_charmap() is case sensitive. */
- char *codeset = upcase (content_codeset (ct));
- int encoding =
- strcmp (norm_charmap (codeset), "US-ASCII") ? CE_8BIT : CE_7BIT;
+ char *ct_charset = content_charset (ct);
+ int encoding = strcasecmp (ct_charset, "US-ASCII") ? CE_8BIT : CE_7BIT;
+
+ free (ct_charset);
- free (codeset);
return encoding;
}
CT ct;
struct part *p;
struct multipart *m;
- char *cp;
const struct str2init *ctinit;
- if ((ct = (CT) calloc (1, sizeof *ct)) == NULL)
+ if ((ct = (CT) mh_xcalloc (1, sizeof *ct)) == NULL)
adios (NULL, "out of memory");
/* Set up the multipart/alternative part. These fields of *ct were
- initialized to 0 by calloc():
+ initialized to 0 by mh_xcalloc():
c_fp, c_unlink, c_begin, c_end,
c_vrsn, c_ctline, c_celine,
c_id, c_descr, c_dispo, c_partno,
c_cefile, c_encoding,
c_digested, c_digest[16], c_ctexbody,
c_ctinitfnx, c_ceopenfnx, c_ceclosefnx, c_cesizefnx,
- c_umask, c_pid, c_rfc934,
+ c_umask, c_rfc934,
c_showproc, c_termproc, c_storeproc, c_storage, c_folder
*/
boundary_in_content (&new_part->c_cefile.ce_fp,
new_part->c_cefile.ce_file,
boundary)) == -1) {
+ free (ct);
return NULL;
}
}
if ((found_boundary = boundary_in_content (&new_part->c_fp,
new_part->c_file,
boundary)) == -1) {
+ free (ct);
return NULL;
}
}
if (found_boundary) {
advise (NULL, "giving up trying to find a unique boundary");
+ free (ct);
return NULL;
}
}
ct->c_ctinfo.ci_subtype = add (subtypename, NULL);
}
- name = concat (" ", typename, "/", subtypename, boundary_indicator,
- boundary, NULL);
- if ((cp = strstr (name, boundary_indicator))) {
- ct->c_ctinfo.ci_attrs[0] = name;
- ct->c_ctinfo.ci_attrs[1] = NULL;
- /* ci_values don't get free'd, so point into ci_attrs. */
- ct->c_ctinfo.ci_values[0] = cp + strlen (boundary_indicator);
- }
+ add_param(&ct->c_ctinfo.ci_first_pm, &ct->c_ctinfo.ci_last_pm,
+ "boundary", boundary, 0);
p = (struct part *) mh_xmalloc (sizeof *p);
p->mp_next = (struct part *) mh_xmalloc (sizeof *p->mp_next);
p->mp_next->mp_next = NULL;
p->mp_next->mp_part = first_alt;
- if ((m = (struct multipart *) calloc (1, sizeof (struct multipart))) ==
+ if ((m = (struct multipart *) mh_xcalloc (1, sizeof (struct multipart))) ==
NULL)
adios (NULL, "out of memory");
m->mp_start = concat (boundary, "\n", NULL);
m->mp_stop = concat (boundary, "--\n", NULL);
m->mp_parts = p;
- ct->c_ctparams = (void *) m;
+ ct->c_ctparams = m;
free (boundary);
static int
-decode_text_parts (CT ct, int encoding, int *message_mods) {
+decode_text_parts (CT ct, int encoding, const char *decodetypes, int *message_mods) {
int status = OK;
+ int lf_line_endings = 0;
switch (ct->c_type) {
- case CT_TEXT:
+ case CT_MULTIPART: {
+ struct multipart *m = (struct multipart *) ct->c_ctparams;
+ struct part *part;
+
+ /* Should check to see if the body for this part is encoded?
+ For now, it gets passed along as-is by InitMultiPart(). */
+ for (part = m->mp_parts; status == OK && part; part = part->mp_next) {
+ status = decode_text_parts (part->mp_part, encoding, decodetypes, message_mods);
+ }
+ break;
+ }
+
+ case CT_MESSAGE:
+ if (ct->c_subtype == MESSAGE_EXTERNAL) {
+ struct exbody *e = (struct exbody *) ct->c_ctparams;
+
+ status = decode_text_parts (e->eb_content, encoding, decodetypes, message_mods);
+ }
+ break;
+
+ default:
+ if (! should_decode(decodetypes, ct->c_ctinfo.ci_type, ct->c_ctinfo.ci_subtype)) {
+ break;
+ }
+
+ lf_line_endings =
+ ct->c_ctparams && ((struct text *) ct->c_ctparams)->lf_line_endings;
+
switch (ct->c_encoding) {
case CE_BASE64:
case CE_QUOTED: {
int ct_encoding;
if (decode_part (ct) == OK && ct->c_cefile.ce_file) {
- if ((ct_encoding = content_encoding (ct)) == CE_BINARY &&
- encoding != CE_BINARY) {
+ const char *reason = NULL;
+
+ if ((ct_encoding = content_encoding (ct, &reason)) == CE_BINARY
+ && encoding != CE_BINARY) {
/* The decoding isn't acceptable so discard it.
Leave status as OK to allow other transformations. */
if (verbosw) {
- report (ct->c_partno, ct->c_file,
- "will not decode%s because it is binary",
+ report (NULL, ct->c_partno, ct->c_file,
+ "will not decode%s because it is binary (%s)",
ct->c_partno ? ""
: ct->c_ctline ? ct->c_ctline
- : "");
+ : "",
+ reason);
}
- unlink (ct->c_cefile.ce_file);
+ (void) m_unlink (ct->c_cefile.ce_file);
free (ct->c_cefile.ce_file);
ct->c_cefile.ce_file = NULL;
} else if (ct->c_encoding == CE_QUOTED &&
/* The decoding isn't acceptable so discard it.
Leave status as OK to allow other transformations. */
if (verbosw) {
- report (ct->c_partno, ct->c_file,
+ report (NULL, ct->c_partno, ct->c_file,
"will not decode%s because it is 8bit",
ct->c_partno ? ""
: ct->c_ctline ? ct->c_ctline
: "");
}
- unlink (ct->c_cefile.ce_file);
+ (void) m_unlink (ct->c_cefile.ce_file);
free (ct->c_cefile.ce_file);
ct->c_cefile.ce_file = NULL;
} else {
if (set_ce (ct, enc) == OK) {
++*message_mods;
if (verbosw) {
- report (ct->c_partno, ct->c_file, "decode%s",
+ report (NULL, ct->c_partno, ct->c_file, "decode%s",
ct->c_ctline ? ct->c_ctline : "");
}
- strip_crs (ct, message_mods);
+ if (lf_line_endings) {
+ strip_crs (ct, message_mods);
+ }
} else {
status = NOTOK;
}
}
case CE_8BIT:
case CE_7BIT:
- strip_crs (ct, message_mods);
+ if (lf_line_endings) {
+ strip_crs (ct, message_mods);
+ }
break;
default:
break;
}
break;
-
- case CT_MULTIPART: {
- struct multipart *m = (struct multipart *) ct->c_ctparams;
- struct part *part;
-
- /* Should check to see if the body for this part is encoded?
- For now, it gets passed along as-is by InitMultiPart(). */
- for (part = m->mp_parts; status == OK && part; part = part->mp_next) {
- status = decode_text_parts (part->mp_part, encoding, message_mods);
- }
- break;
}
- case CT_MESSAGE:
- if (ct->c_subtype == MESSAGE_EXTERNAL) {
- struct exbody *e;
+ return status;
+}
- e = (struct exbody *) ct->c_ctparams;
- status = decode_text_parts (e->eb_content, encoding, message_mods);
- }
- break;
- default:
- break;
+/* Determine if the part with type[/subtype] should be decoded, according to
+ decodetypes (which came from the -decodetypes switch). */
+static int
+should_decode(const char *decodetypes, const char *type, const char *subtype) {
+ /* Quick search for matching type[/subtype] in decodetypes: bracket
+ decodetypes with commas, then search for ,type, and ,type/subtype, in
+ it. */
+
+ int found_match = 0;
+ char *delimited_decodetypes = concat(",", decodetypes, ",", NULL);
+ char *delimited_type = concat(",", type, ",", NULL);
+
+ if (nmh_strcasestr(delimited_decodetypes, delimited_type)) {
+ found_match = 1;
+ } else if (subtype != NULL) {
+ char *delimited_type_subtype =
+ concat(",", type, "/", subtype, ",", NULL);
+
+ if (nmh_strcasestr(delimited_decodetypes, delimited_type_subtype)) {
+ found_match = 1;
+ }
+ free(delimited_type_subtype);
}
- return status;
+ free(delimited_type);
+ free(delimited_decodetypes);
+
+ return found_match;
}
/* See if the decoded content is 7bit, 8bit, or binary. It's binary
if it has any NUL characters, a CR not followed by a LF, or lines
- greater than 998 characters in length. */
+ greater than 998 characters in length. If binary, reason is set
+ to a string explaining why. */
static int
-content_encoding (CT ct) {
+content_encoding (CT ct, const char **reason) {
CE ce = &ct->c_cefile;
int encoding = CE_7BIT;
if (*cp == '\0' || ++line_len > 998 ||
(*cp != '\n' && last_char_was_cr)) {
encoding = CE_BINARY;
+ if (*cp == '\0') {
+ *reason = "null character";
+ } else if (line_len > 998) {
+ *reason = "line length > 998";
+ } else if (*cp != '\n' && last_char_was_cr) {
+ *reason = "CR not followed by LF";
+ } else {
+ /* Should not reach this. */
+ *reason = "";
+ }
break;
} else if (*cp == '\n') {
line_len = 0;
static int
strip_crs (CT ct, int *message_mods) {
- /* norm_charmap() is case sensitive. */
- char *codeset = upcase (content_codeset (ct));
+ char *charset = content_charset (ct);
int status = OK;
/* Only strip carriage returns if content is ASCII or another
- codeset that has the same readily recognizable CR followed by a
+ charset that has the same readily recognizable CR followed by a
LF. We can include UTF-8 here because if the high-order bit of
a UTF-8 byte is 0, then it must be a single-byte ASCII
character. */
- if (! strcmp (norm_charmap (codeset), "US-ASCII") ||
- ! strncmp (norm_charmap (codeset), "ISO-8859-", 9) ||
- ! strncmp (norm_charmap (codeset), "UTF-8", 5) ||
- ! strncmp (norm_charmap (codeset), "WINDOWS-12", 10)) {
+ if (! strcasecmp (charset, "US-ASCII") ||
+ ! strcasecmp (charset, "UTF-8") ||
+ ! strncasecmp (charset, "ISO-8859-", 9) ||
+ ! strncasecmp (charset, "WINDOWS-12", 10)) {
char **file = NULL;
FILE **fp = NULL;
size_t begin;
size_t i;
int last_char_was_cr = 0;
- if (end > 0) bytes_to_read -= bytes_read;
+ if (end > 0) { bytes_to_read -= bytes_read; }
for (i = 0, cp = buffer; i < bytes_read; ++i, ++cp) {
if (*cp == '\n' && last_char_was_cr) {
if (has_crs) {
int fd;
- char *stripped_content_file =
- add (m_mktemp2 (tmp, invo_name, &fd, NULL), NULL);
+ char *stripped_content_file;
+ char *tempfile = m_mktemp2 (NULL, invo_name, &fd, NULL);
+
+ if (tempfile == NULL) {
+ adios (NULL, "unable to create temporary file in %s",
+ get_temp_dir());
+ }
+ stripped_content_file = add (tempfile, NULL);
/* Strip each CR before a LF from the content. */
fseeko (*fp, begin, SEEK_SET);
if (*cp == '\r') {
last_char_was_cr = 1;
} else if (last_char_was_cr) {
- if (*cp != '\n') write (fd, "\r", 1);
- write (fd, cp, 1);
+ if (*cp != '\n') {
+ if (write (fd, "\r", 1) < 0) {
+ advise (tempfile, "CR write");
+ }
+ }
+ if (write (fd, cp, 1) < 0) {
+ advise (tempfile, "write");
+ }
last_char_was_cr = 0;
} else {
- write (fd, cp, 1);
+ if (write (fd, cp, 1) < 0) {
+ advise (tempfile, "write");
+ }
last_char_was_cr = 0;
}
}
if (close (fd)) {
admonish (NULL, "unable to write temporary file %s",
stripped_content_file);
- unlink (stripped_content_file);
+ (void) m_unlink (stripped_content_file);
status = NOTOK;
} else {
/* Replace the decoded file with the converted one. */
if (ct->c_cefile.ce_file) {
if (ct->c_cefile.ce_unlink) {
- unlink (ct->c_cefile.ce_file);
+ (void) m_unlink (ct->c_cefile.ce_file);
}
free (ct->c_cefile.ce_file);
}
++*message_mods;
if (verbosw) {
- report (ct->c_partno,
+ report (NULL, ct->c_partno,
begin == 0 && end == 0 ? "" : *file,
"stripped CRs");
}
}
}
- free (codeset);
- return status;
-}
-
-
-char *
-content_codeset (CT ct) {
- const char *const charset = "charset";
- char *default_codeset = NULL;
- CI ctinfo = &ct->c_ctinfo;
- char **ap, **vp;
- char **src_codeset = NULL;
-
- for (ap = ctinfo->ci_attrs, vp = ctinfo->ci_values; *ap; ++ap, ++vp) {
- if (! strcasecmp (*ap, charset)) {
- src_codeset = vp;
- break;
- }
- }
-
- /* RFC 2045, Sec. 5.2: default to us-ascii. */
- if (src_codeset == NULL) src_codeset = &default_codeset;
- if (*src_codeset == NULL) *src_codeset = "US-ASCII";
+ free (charset);
- return *src_codeset;
+ return status;
}
static int
-convert_codesets (CT ct, char *dest_codeset, int *message_mods) {
+convert_charsets (CT ct, char *dest_charset, int *message_mods) {
int status = OK;
switch (ct->c_type) {
case CT_TEXT:
if (ct->c_subtype == TEXT_PLAIN) {
- status = convert_codeset (ct, dest_codeset, message_mods);
+ status = convert_charset (ct, dest_charset, message_mods);
+ if (status == OK) {
+ if (verbosw) {
+ char *ct_charset = content_charset (ct);
+
+ report (NULL, ct->c_partno, ct->c_file,
+ "convert %s to %s", ct_charset, dest_charset);
+ free (ct_charset);
+ }
+ } else {
+ char *ct_charset = content_charset (ct);
+
+ report ("iconv", ct->c_partno, ct->c_file,
+ "failed to convert %s to %s", ct_charset, dest_charset);
+ free (ct_charset);
+ }
}
break;
For now, it gets passed along as-is by InitMultiPart(). */
for (part = m->mp_parts; status == OK && part; part = part->mp_next) {
status =
- convert_codesets (part->mp_part, dest_codeset, message_mods);
+ convert_charsets (part->mp_part, dest_charset, message_mods);
}
break;
}
case CT_MESSAGE:
if (ct->c_subtype == MESSAGE_EXTERNAL) {
- struct exbody *e;
+ struct exbody *e = (struct exbody *) ct->c_ctparams;
- e = (struct exbody *) ct->c_ctparams;
status =
- convert_codesets (e->eb_content, dest_codeset, message_mods);
+ convert_charsets (e->eb_content, dest_charset, message_mods);
}
break;
}
+/*
+ * Fix various problems that aren't handled elsewhere. These
+ * are fixed unconditionally: there are no switches to disable
+ * them. (Currently, "problems" is just one: an extraneous
+ * semicolon at the end of a header parameter list.)
+ */
static int
-convert_codeset (CT ct, char *dest_codeset, int *message_mods) {
- char *src_codeset = content_codeset (ct);
+fix_always (CT ct, int *message_mods) {
int status = OK;
- /* norm_charmap() is case sensitive. */
- char *src_codeset_u = upcase (src_codeset);
- char *dest_codeset_u = upcase (dest_codeset);
- int different_codesets =
- strcmp (norm_charmap (src_codeset), norm_charmap (dest_codeset));
-
- free (dest_codeset_u);
- free (src_codeset_u);
-
- if (different_codesets) {
-#ifdef HAVE_ICONV
- iconv_t conv_desc = NULL;
- char *dest;
- int fd = -1;
- char **file = NULL;
- FILE **fp = NULL;
- size_t begin;
- size_t end;
- int opened_input_file = 0;
- char src_buffer[BUFSIZ];
- HF hf;
+ switch (ct->c_type) {
+ case CT_MULTIPART: {
+ struct multipart *m = (struct multipart *) ct->c_ctparams;
+ struct part *part;
- if ((conv_desc = iconv_open (dest_codeset, src_codeset)) ==
- (iconv_t) -1) {
- advise (NULL, "Can't convert %s to %s", src_codeset, dest_codeset);
- return -1;
+ for (part = m->mp_parts; status == OK && part; part = part->mp_next) {
+ status = fix_always (part->mp_part, message_mods);
}
+ break;
+ }
- dest = add (m_mktemp2 (tmp, invo_name, &fd, NULL), NULL);
-
- if (ct->c_cefile.ce_file) {
- file = &ct->c_cefile.ce_file;
- fp = &ct->c_cefile.ce_fp;
- begin = end = 0;
- } else if (ct->c_file) {
- file = &ct->c_file;
- fp = &ct->c_fp;
- begin = (size_t) ct->c_begin;
- end = (size_t) ct->c_end;
- } /* else no input file: shouldn't happen */
+ case CT_MESSAGE:
+ if (ct->c_subtype == MESSAGE_EXTERNAL) {
+ struct exbody *e = (struct exbody *) ct->c_ctparams;
- if (file && *file && fp) {
- if (! *fp) {
- if ((*fp = fopen (*file, "r")) == NULL) {
- advise (*file, "unable to open for reading");
- status = NOTOK;
- } else {
- opened_input_file = 1;
- }
- }
+ status = fix_always (e->eb_content, message_mods);
}
+ break;
- if (fp && *fp) {
- size_t inbytes;
- size_t bytes_to_read =
- end > 0 && end > begin ? end - begin : sizeof src_buffer;
+ default: {
+ HF hf;
- fseeko (*fp, begin, SEEK_SET);
- while ((inbytes = fread (src_buffer, 1,
- min (bytes_to_read, sizeof src_buffer),
- *fp)) > 0) {
- char dest_buffer[BUFSIZ];
- char *ib = src_buffer, *ob = dest_buffer;
- size_t outbytes = sizeof dest_buffer;
- size_t outbytes_before = outbytes;
-
- if (end > 0) bytes_to_read -= inbytes;
-
- if (iconv (conv_desc, &ib, &inbytes, &ob, &outbytes) ==
- (size_t) -1) {
- status = NOTOK;
- break;
- } else {
- write (fd, dest_buffer, outbytes_before - outbytes);
- }
- }
+ for (hf = ct->c_first_hf; hf; hf = hf->next) {
+ size_t len = strlen (hf->value);
- if (opened_input_file) {
- fclose (*fp);
- *fp = NULL;
+ if (strcasecmp (hf->name, TYPE_FIELD) != 0 &&
+ strcasecmp (hf->name, DISPO_FIELD) != 0) {
+ /* Only do this for Content-Type and
+ Content-Disposition fields because those are the
+ only headers that parse_mime() warns about. */
+ continue;
}
- }
- iconv_close (conv_desc);
- close (fd);
-
- if (status == OK) {
- /* Replace the decoded file with the converted one. */
- if (ct->c_cefile.ce_file) {
- if (ct->c_cefile.ce_unlink) {
- unlink (ct->c_cefile.ce_file);
+ /* whitespace following a trailing ';' will be nuked as well */
+ if (hf->value[len - 1] == '\n') {
+ while (isspace((unsigned char)(hf->value[len - 2]))) {
+ if (len-- == 0) { break; }
}
- free (ct->c_cefile.ce_file);
- }
- ct->c_cefile.ce_file = dest;
- ct->c_cefile.ce_unlink = 1;
-
- ++*message_mods;
- if (verbosw) {
- report (ct->c_partno, ct->c_file, "convert %s to %s",
- src_codeset, dest_codeset);
}
- /* Update ci_attrs. */
- src_codeset = dest_codeset;
-
- /* Update ct->c_ctline. */
- if (ct->c_ctline) {
- char *ctline =
- update_attr (ct->c_ctline, "charset=", dest_codeset);
-
- free (ct->c_ctline);
- ct->c_ctline = ctline;
- } /* else no CT line, which is odd */
+ if (hf->value[len - 2] == ';') {
+ /* Remove trailing ';' from parameter value. */
+ hf->value[len - 2] = '\n';
+ hf->value[len - 1] = '\0';
+
+ /* Also, if Content-Type parameter, remove trailing ';'
+ from ct->c_ctline. This probably isn't necessary
+ but can't hurt. */
+ if (strcasecmp(hf->name, TYPE_FIELD) == 0 && ct->c_ctline) {
+ size_t l = strlen(ct->c_ctline) - 1;
+ while (isspace((unsigned char)(ct->c_ctline[l])) ||
+ ct->c_ctline[l] == ';') {
+ ct->c_ctline[l--] = '\0';
+ if (l == 0) { break; }
+ }
+ }
- /* Update Content-Type header field. */
- for (hf = ct->c_first_hf; hf; hf = hf->next) {
- if (! strcasecmp (TYPE_FIELD, hf->name)) {
- char *ctline_less_newline =
- update_attr (hf->value, "charset=", dest_codeset);
- char *ctline = concat (ctline_less_newline, "\n", NULL);
- free (ctline_less_newline);
-
- free (hf->value);
- hf->value = ctline;
- break;
+ ++*message_mods;
+ if (verbosw) {
+ report (NULL, ct->c_partno, ct->c_file,
+ "remove trailing ; from %s parameter value",
+ hf->name);
}
}
- } else {
- unlink (dest);
}
-#else /* ! HAVE_ICONV */
- NMH_UNUSED (message_mods);
-
- advise (NULL, "Can't convert %s to %s without iconv", src_codeset,
- dest_codeset);
- status = NOTOK;
-#endif /* ! HAVE_ICONV */
- }
+ }}
return status;
}
}
}
}
- if (new != -1) close (new);
- if (old != -1) close (old);
- unlink (outfile);
+ if (new != -1) { close (new); }
+ if (old != -1) { close (old); }
+ (void) m_unlink (outfile);
if (i < 0) {
/* The -file argument processing used path() to
} else {
admonish (NULL, "unable to remove input file %s, "
"not modifying it", infile);
- unlink (outfile);
+ (void) m_unlink (outfile);
status = NOTOK;
}
}
} else {
/* No modifications and didn't need the tmp outfile. */
- unlink (outfile);
+ (void) m_unlink (outfile);
}
} else {
/* Output is going to some file. Produce it whether or not
}
+/*
+ * parse_mime() does not set lf_line_endings in struct text, so use this function to do it.
+ * It touches the parts the decodetypes identifies.
+ */
+static void
+set_text_ctparams(CT ct, char *decodetypes, int lf_line_endings) {
+ switch (ct->c_type) {
+ case CT_MULTIPART: {
+ struct multipart *m = (struct multipart *) ct->c_ctparams;
+ struct part *part;
+
+ for (part = m->mp_parts; part; part = part->mp_next) {
+ set_text_ctparams(part->mp_part, decodetypes, lf_line_endings);
+ }
+ break;
+ }
+
+ case CT_MESSAGE:
+ if (ct->c_subtype == MESSAGE_EXTERNAL) {
+ struct exbody *e = (struct exbody *) ct->c_ctparams;
+
+ set_text_ctparams(e->eb_content, decodetypes, lf_line_endings);
+ }
+ break;
+
+ default:
+ if (should_decode(decodetypes, ct->c_ctinfo.ci_type, ct->c_ctinfo.ci_subtype)) {
+ if (ct->c_ctparams == NULL) {
+ if ((ct->c_ctparams = (struct text *) mh_xcalloc (1, sizeof (struct text))) == NULL) {
+ adios (NULL, "out of memory");
+ }
+ }
+ ((struct text *) ct->c_ctparams)->lf_line_endings = lf_line_endings;
+ }
+ }
+}
+
+
/*
* If "rmmproc" is defined, call that to remove the file. Otherwise,
* use the standard MH backup file.
static void
-report (char *partno, char *filename, char *message, ...) {
+report (char *what, char *partno, char *filename, char *message, ...) {
va_list args;
char *fmt;
fmt = concat (filename, partno ? " part " : ", ",
partno ? partno : "", partno ? ", " : "", message, NULL);
- advertise (NULL, NULL, fmt, args);
+ advertise (what, NULL, fmt, args);
free (fmt);
va_end (args);
}
-static char *
-upcase (char *str) {
- char *up = cpytrim (str);
- char *cp;
-
- for (cp = up; *cp; ++cp) *cp = toupper ((unsigned char) *cp);
-
- return up;
-}
-
-
static void
pipeser (int i)
{
projects / nmh / blobdiff