uip/sendsbr.c to new uip/attach.c.
uip_burst_LDADD = $(LDADD) $(POSTLINK)
uip_comp_SOURCES = uip/comp.c uip/whatnowproc.c uip/whatnowsbr.c uip/sendsbr.c \
- uip/annosbr.c uip/distsbr.c
+ uip/attach.c uip/annosbr.c uip/distsbr.c
uip_comp_LDADD = $(LDADD) $(TERMLIB) $(ICONVLIB) $(READLINELIB) $(POSTLINK)
uip_dist_SOURCES = uip/dist.c uip/whatnowproc.c uip/whatnowsbr.c uip/sendsbr.c \
- uip/annosbr.c uip/distsbr.c uip/forwsbr.c
+ uip/attach.c uip/annosbr.c uip/distsbr.c uip/forwsbr.c
uip_dist_LDADD = $(LDADD) $(TERMLIB) $(ICONVLIB) $(READLINELIB) $(POSTLINK)
uip_flist_SOURCES = uip/flist.c
uip_folder_LDADD = $(LDADD) $(POSTLINK)
uip_forw_SOURCES = uip/forw.c uip/whatnowproc.c uip/whatnowsbr.c uip/sendsbr.c \
- uip/annosbr.c uip/distsbr.c uip/forwsbr.c
+ uip/attach.c uip/annosbr.c uip/distsbr.c uip/forwsbr.c
uip_forw_LDADD = $(LDADD) $(TERMLIB) $(ICONVLIB) $(READLINELIB) $(POSTLINK)
uip_inc_SOURCES = uip/inc.c uip/scansbr.c uip/dropsbr.c uip/popsbr.c
uip_refile_SOURCES = uip/refile.c
uip_refile_LDADD = $(LDADD) $(POSTLINK)
-uip_repl_SOURCES = uip/repl.c uip/replsbr.c uip/whatnowproc.c \
- uip/whatnowsbr.c uip/sendsbr.c uip/annosbr.c uip/distsbr.c
+uip_repl_SOURCES = uip/repl.c uip/replsbr.c uip/whatnowproc.c uip/whatnowsbr.c \
+ uip/sendsbr.c uip/attach.c uip/annosbr.c uip/distsbr.c
uip_repl_LDADD = $(LDADD) $(TERMLIB) $(ICONVLIB) $(READLINELIB) $(POSTLINK)
uip_rmf_SOURCES = uip/rmf.c
uip_scan_SOURCES = uip/scan.c uip/scansbr.c
uip_scan_LDADD = $(LDADD) $(TERMLIB) $(ICONVLIB) $(POSTLINK)
-uip_send_SOURCES = uip/send.c uip/sendsbr.c uip/annosbr.c uip/distsbr.c
+uip_send_SOURCES = uip/send.c uip/sendsbr.c uip/attach.c uip/annosbr.c \
+ uip/distsbr.c
uip_send_LDADD = $(LDADD) $(POSTLINK)
uip_show_SOURCES = uip/show.c uip/mhlsbr.c
uip_sortm_LDADD = $(LDADD) $(POSTLINK)
uip_whatnow_SOURCES = uip/whatnow.c uip/whatnowsbr.c uip/sendsbr.c \
- uip/annosbr.c uip/distsbr.c
+ uip/attach.c uip/annosbr.c uip/distsbr.c
uip_whatnow_LDADD = $(LDADD) $(READLINELIB) $(POSTLINK)
uip_whom_SOURCES = uip/whom.c uip/distsbr.c
uip_slocal_LDADD = $(LDADD) $(NDBM_LIBS) $(POSTLINK)
uip_viamail_SOURCES = uip/viamail.c uip/mhmisc.c uip/mhoutsbr.c uip/sendsbr.c \
- uip/annosbr.c uip/distsbr.c
+ uip/attach.c uip/annosbr.c uip/distsbr.c
uip_viamail_LDADD = $(LDADD) $(POSTLINK)
test_getfullname_SOURCES = test/getfullname.c
int writeBase64 (unsigned char *, size_t, unsigned char *);
int writeBase64raw (unsigned char *, size_t, unsigned char *);
+/*
+ * prototypes to support whatnow attach
+ */
+int attach(char *, char *, char *, size_t, char *, size_t, int);
+void clean_up_temporary_files(const char *, const char *);
+char *mime_type (const char *);
+
+
/*
* credentials management
*/
--- /dev/null
+/*
+ * attach.c -- routines to help attach files via whatnow
+ *
+ * This code is Copyright (c) 2002, by the authors of nmh. See the
+ * COPYRIGHT file in the root directory of the nmh distribution for
+ * complete copyright information.
+ */
+
+#include <h/mh.h>
+#include <h/utils.h>
+#include <h/tws.h>
+
+static int get_line(void);
+static int make_mime_composition_file_entry(char *, int, char *);
+
+static int field_size; /* size of header field buffer */
+static char *field; /* header field buffer */
+static FILE *draft_file; /* draft file pointer */
+static FILE *composition_file; /* composition file pointer */
+
+int
+attach(char *attachment_header_field_name, char *draft_file_name,
+ char *body_file_name, size_t body_file_name_len,
+ char *composition_file_name, size_t composition_file_name_len,
+ int attachformat)
+{
+ char buf[PATH_MAX + 6]; /* miscellaneous buffer */
+ int c; /* current character for body copy */
+ int has_attachment; /* draft has at least one attachment */
+ int has_body; /* draft has a message body */
+ int length; /* length of attachment header field name */
+ char *p; /* miscellaneous string pointer */
+ FILE *fp; /* pointer for mhn.defaults */
+ FILE *body_file = NULL; /* body file pointer */
+
+ /*
+ * Open up the draft file.
+ */
+
+ if ((draft_file = fopen(draft_file_name, "r")) == (FILE *)0)
+ adios((char *)0, "can't open draft file `%s'.", draft_file_name);
+
+ /*
+ * Allocate a buffer to hold the header components as they're read in.
+ * This buffer might need to be quite large, so we grow it as needed.
+ */
+
+ field = (char *)mh_xmalloc(field_size = 256);
+
+ /*
+ * Scan the draft file for a header field name, with a non-empty
+ * body, that matches the -attach argument. The existence of one
+ * indicates that the draft has attachments. Bail out if there
+ * are no attachments because we're done. Read to the end of the
+ * headers even if we have no attachments.
+ */
+
+ length = strlen(attachment_header_field_name);
+
+ has_attachment = 0;
+
+ while (get_line() != EOF && *field != '\0' && *field != '-') {
+ if (strncasecmp(field, attachment_header_field_name, length) == 0 &&
+ field[length] == ':') {
+ for (p = field + length + 1; *p == ' ' || *p == '\t'; p++)
+ ;
+ if (strlen (p) > 0) {
+ has_attachment = 1;
+ }
+ }
+ }
+
+ if (has_attachment == 0)
+ return (DONE);
+
+ /*
+ * We have at least one attachment. Look for at least one non-blank line
+ * in the body of the message which indicates content in the body.
+ */
+
+ has_body = 0;
+
+ while (get_line() != EOF) {
+ for (p = field; *p != '\0'; p++) {
+ if (*p != ' ' && *p != '\t') {
+ has_body = 1;
+ break;
+ }
+ }
+
+ if (has_body)
+ break;
+ }
+
+ /*
+ * Make names for the temporary files.
+ */
+
+ (void)strncpy(body_file_name,
+ m_mktemp(m_maildir(invo_name), NULL, NULL),
+ body_file_name_len);
+ (void)strncpy(composition_file_name,
+ m_mktemp(m_maildir(invo_name), NULL, NULL),
+ composition_file_name_len);
+
+ if (has_body)
+ body_file = fopen(body_file_name, "w");
+
+ composition_file = fopen(composition_file_name, "w");
+
+ if ((has_body && body_file == (FILE *)0) || composition_file == (FILE *)0) {
+ clean_up_temporary_files(body_file_name, composition_file_name);
+ adios((char *)0, "unable to open all of the temporary files.");
+ }
+
+ /*
+ * Start at the beginning of the draft file. Copy all
+ * non-attachment header fields to the temporary composition
+ * file. Then add the dashed line separator.
+ */
+
+ rewind(draft_file);
+
+ while (get_line() != EOF && *field != '\0' && *field != '-')
+ if (strncasecmp(field, attachment_header_field_name, length) != 0 ||
+ field[length] != ':')
+ (void)fprintf(composition_file, "%s\n", field);
+
+ (void)fputs("--------\n", composition_file);
+
+ /*
+ * Copy the message body to a temporary file.
+ */
+
+ if (has_body) {
+ while ((c = getc(draft_file)) != EOF)
+ putc(c, body_file);
+
+ (void)fclose(body_file);
+ }
+
+ /*
+ * Add a mhbuild MIME composition file line for the body if there was one.
+ * Set the default content type to text/plain so that mhbuild takes care
+ * of any necessary encoding.
+ */
+
+ if (has_body)
+ if (make_mime_composition_file_entry(body_file_name, attachformat,
+ "text/plain")) {
+ clean_up_temporary_files(body_file_name, composition_file_name);
+ adios (NULL, "exiting");
+ }
+
+ /*
+ * Now, go back to the beginning of the draft file and look for
+ * header fields that specify attachments. Add a mhbuild MIME
+ * composition file for each.
+ */
+
+ if ((fp = fopen (p = etcpath ("mhn.defaults"), "r"))) {
+ readconfig ((struct node **) NULL, fp, p, 0);
+ fclose(fp);
+ }
+
+ rewind(draft_file);
+
+ while (get_line() != EOF && *field != '\0' && *field != '-') {
+ if (strncasecmp(field, attachment_header_field_name, length) == 0 &&
+ field[length] == ':') {
+ for (p = field + length + 1; *p == ' ' || *p == '\t'; p++)
+ ;
+
+ /* Skip empty attachment_header_field_name lines. */
+ if (strlen (p) > 0) {
+ struct stat st;
+ if (stat (p, &st) == OK) {
+ if (S_ISREG (st.st_mode)) {
+ /* Don't set the default content type so take
+ make_mime_composition_file_entry() will try
+ to infer it from the file type. */
+ if (make_mime_composition_file_entry(p, attachformat, 0)) {
+ clean_up_temporary_files(body_file_name,
+ composition_file_name);
+ adios (NULL, "exiting");
+ }
+ } else {
+ adios (NULL, "unable to attach %s, not a plain file",
+ p);
+ }
+ } else {
+ adios (NULL, "unable to access file \"%s\"", p);
+ }
+ }
+ }
+ }
+
+ (void)fclose(composition_file);
+
+ /*
+ * We're ready to roll! Run mhbuild on the composition file.
+ * Note that mhbuild is in the context as buildmimeproc.
+ */
+
+ (void)sprintf(buf, "%s %s", buildmimeproc, composition_file_name);
+
+ if (system(buf) != 0) {
+ clean_up_temporary_files(body_file_name, composition_file_name);
+ return NOTOK;
+ }
+
+ return OK;
+}
+
+void
+clean_up_temporary_files(const char *body_file_name,
+ const char *composition_file_name)
+{
+ (void)unlink(body_file_name);
+ (void)unlink(composition_file_name);
+
+ return;
+}
+
+static int
+get_line(void)
+{
+ int c; /* current character */
+ int n; /* number of bytes in buffer */
+ char *p; /* buffer pointer */
+
+ /*
+ * Get a line from the input file, growing the field buffer as needed. We do this
+ * so that we can fit an entire line in the buffer making it easy to do a string
+ * comparison on both the field name and the field body which might be a long path
+ * name.
+ */
+
+ for (n = 0, p = field; (c = getc(draft_file)) != EOF; *p++ = c) {
+ if (c == '\n' && (c = getc(draft_file)) != ' ' && c != '\t') {
+ (void)ungetc(c, draft_file);
+ c = '\n';
+ break;
+ }
+
+ if (++n >= field_size - 1) {
+ field = (char *)mh_xrealloc((void *)field, field_size += 256);
+
+ p = field + n - 1;
+ }
+ }
+
+ /*
+ * NUL-terminate the field..
+ */
+
+ *p = '\0';
+
+ return (c);
+}
+
+static int
+make_mime_composition_file_entry(char *file_name, int attachformat,
+ char *default_content_type)
+{
+ int binary; /* binary character found flag */
+ int c; /* current character */
+ char cmd[PATH_MAX + 8]; /* file command buffer */
+ char *content_type; /* mime content type */
+ FILE *fp; /* content and pipe file pointer */
+ struct node *np; /* context scan node pointer */
+ char *p; /* miscellaneous string pointer */
+ struct stat st; /* file status buffer */
+
+ if ((content_type = mime_type (file_name)) == NULL) {
+ /*
+ * Check the file name for a suffix. Scan the context for
+ * that suffix on a mhshow-suffix- entry. We use these
+ * entries to be compatible with mhnshow, and there's no
+ * reason to make the user specify each suffix twice. Context
+ * entries of the form "mhshow-suffix-contenttype" in the name
+ * have the suffix in the field, including the dot.
+ */
+ if ((p = strrchr(file_name, '.')) != (char *)0) {
+ for (np = m_defs; np; np = np->n_next) {
+ if (strncasecmp(np->n_name, "mhshow-suffix-", 14) == 0 &&
+ strcasecmp(p, np->n_field ? np->n_field : "") == 0) {
+ content_type = strdup (np->n_name + 14);
+ break;
+ }
+ }
+ }
+
+ if (content_type == NULL && default_content_type != NULL) {
+ content_type = strdup (default_content_type);
+ }
+ }
+
+ /*
+ * No content type was found, either because there was no matching entry in the
+ * context or because the file name has no suffix. Open the file and check for
+ * non-ASCII characters. Choose the content type based on this check.
+ */
+
+ if (content_type == (char *)0) {
+ if ((fp = fopen(file_name, "r")) == (FILE *)0) {
+ advise((char *)0, "unable to access file \"%s\"", file_name);
+ return NOTOK;
+ }
+
+ binary = 0;
+
+ while ((c = getc(fp)) != EOF) {
+ if (c > 127 || c < 0) {
+ binary = 1;
+ break;
+ }
+ }
+
+ (void)fclose(fp);
+
+ content_type =
+ strdup (binary ? "application/octet-stream" : "text/plain");
+ }
+
+ /*
+ * Make sure that the attachment file exists and is readable. Append a mhbuild
+ * directive to the draft file. This starts with the content type. Append a
+ * file name attribute and a private x-unix-mode attribute. Also append a
+ * description obtained (if possible) by running the "file" command on the file.
+ */
+
+ if (stat(file_name, &st) == -1 || access(file_name, R_OK) != 0) {
+ advise((char *)0, "unable to access file \"%s\"", file_name);
+ return NOTOK;
+ }
+
+ switch (attachformat) {
+ case 0:
+ /* Insert name, file mode, and Content-Id. */
+ (void)fprintf(composition_file, "#%s; name=\"%s\"; x-unix-mode=0%.3ho",
+ content_type, ((p = strrchr(file_name, '/')) == (char *)0) ? file_name : p + 1, (unsigned short)(st.st_mode & 0777));
+
+ if (strlen(file_name) > PATH_MAX) {
+ advise((char *)0, "attachment file name `%s' too long.", file_name);
+ return NOTOK;
+ }
+
+ (void)sprintf(cmd, "file '%s'", file_name);
+
+ if ((fp = popen(cmd, "r")) != (FILE *)0 && fgets(cmd, sizeof (cmd), fp) != (char *)0) {
+ *strchr(cmd, '\n') = '\0';
+
+ /*
+ * The output of the "file" command is of the form
+ *
+ * file: description
+ *
+ * Strip off the "file:" and subsequent white space.
+ */
+
+ for (p = cmd; *p != '\0'; p++) {
+ if (*p == ':') {
+ for (p++; *p != '\0'; p++) {
+ if (*p != '\t')
+ break;
+ }
+ break;
+ }
+ }
+
+ if (*p != '\0')
+ /* Insert Content-Description. */
+ (void)fprintf(composition_file, " [ %s ]", p);
+
+ (void)pclose(fp);
+ }
+
+ break;
+ case 1:
+ if (stringdex (m_maildir(invo_name), file_name) == 0) {
+ /* Content had been placed by send into a temp file.
+ Don't generate Content-Disposition header, because
+ it confuses Microsoft Outlook, Build 10.0.6626, at
+ least. */
+ (void) fprintf (composition_file, "#%s <>", content_type);
+ } else {
+ /* Suppress Content-Id, insert simple Content-Disposition
+ and Content-Description with filename.
+ The Content-Disposition type needs to be "inline" for
+ MS Outlook and BlackBerry calendar programs to properly
+ handle a text/calendar attachment. */
+ p = strrchr(file_name, '/');
+ (void) fprintf (composition_file,
+ "#%s; name=\"%s\" <> [%s]{%s}",
+ content_type,
+ (p == (char *)0) ? file_name : p + 1,
+ (p == (char *)0) ? file_name : p + 1,
+ strcmp ("text/calendar", content_type)
+ ? "attachment" : "inline");
+ }
+
+ break;
+ case 2:
+ if (stringdex (m_maildir(invo_name), file_name) == 0) {
+ /* Content had been placed by send into a temp file.
+ Don't generate Content-Disposition header, because
+ it confuses Microsoft Outlook, Build 10.0.6626, at
+ least. */
+ (void) fprintf (composition_file, "#%s <>", content_type);
+ } else {
+ /* Suppress Content-Id, insert Content-Disposition with
+ modification date and Content-Description wtih filename.
+ The Content-Disposition type needs to be "inline" for
+ MS Outlook and BlackBerry calendar programs to properly
+ handle a text/calendar attachment. */
+ p = strrchr(file_name, '/');
+ (void) fprintf (composition_file,
+ "#%s; name=\"%s\" <>[%s]{%s; "
+ "modification-date=\"%s\"}",
+ content_type,
+ (p == (char *)0) ? file_name : p + 1,
+ (p == (char *)0) ? file_name : p + 1,
+ strcmp ("text/calendar", content_type)
+ ? "attachment" : "inline",
+ dtime (&st.st_mtime, 0));
+ }
+
+ break;
+ default:
+ adios ((char *)0, "unsupported attachformat %d", attachformat);
+ }
+
+ free (content_type);
+
+ /*
+ * Finish up with the file name.
+ */
+
+ (void)fprintf(composition_file, " %s\n", file_name);
+
+ return OK;
+}
+
+/*
+ * Try to use external command to determine mime type, and possibly
+ * encoding. Caller is responsible for free'ing returned memory.
+ */
+char *
+mime_type (const char *file_name) {
+ char *content_type = NULL; /* mime content type */
+
+#ifdef MIMETYPEPROC
+ char cmd[2 * PATH_MAX + 2]; /* file command buffer */
+ char buf[BUFSIZ >= 2048 ? BUFSIZ : 2048];
+ FILE *fp; /* content and pipe file pointer */
+ char mimetypeproc[] = MIMETYPEPROC " '%s'";
+
+ if ((int) snprintf (cmd, sizeof cmd, mimetypeproc, file_name) <
+ (int) sizeof cmd) {
+ if ((fp = popen (cmd, "r")) != NULL) {
+ /* Make sure that buf has space for one additional
+ character, the semicolon that might be added below. */
+ if (fgets (buf, sizeof buf - 1, fp)) {
+ char *cp, *space;
+
+ /* Skip leading <filename>:<whitespace>, if present. */
+ if ((content_type = strchr (buf, ':')) != NULL) {
+ ++content_type;
+ while (*content_type && isblank (*content_type)) {
+ ++content_type;
+ }
+ } else {
+ content_type = buf;
+ }
+
+ /* Truncate at newline (LF or CR), if present. */
+ if ((cp = strpbrk (content_type, "\n\n")) != NULL) {
+ *cp = '\0';
+ }
+
+ /* If necessary, insert semicolon between content type
+ and charset. Assume that the first space is between
+ them. */
+ if ((space = strchr (content_type, ' ')) != NULL) {
+ ssize_t len = strlen (content_type);
+
+ if (space - content_type > 0 &&
+ len > space - content_type + 1) {
+ if (*(space - 1) != ';') {
+ /* The +1 is for the terminating NULL. */
+ memmove (space + 1, space,
+ len - (space - content_type) + 1);
+ *space = ';';
+ }
+ }
+ }
+ } else {
+ advise (NULL, "unable to read mime type");
+ }
+ } else {
+ advise (NULL, "unable to run %s", buf);
+ }
+ } else {
+ advise (NULL, "filename to large to deduce mime type");
+ }
+#else
+ NMH_UNUSED (file_name);
+#endif
+
+ return content_type ? strdup (content_type) : NULL;
+}
static jmp_buf env;
-static char body_file_name[PATH_MAX + 1]; /* name of temporary file for body content */
-static char composition_file_name[PATH_MAX + 1]; /* name of mhbuild composition temporary file */
-static int field_size; /* size of header field buffer */
-static char *field; /* header field buffer */
-static FILE *draft_file; /* draft file pointer */
-static FILE *body_file; /* body file pointer */
-static FILE *composition_file; /* composition file pointer */
-
/*
* external prototypes
*/
static int splitmsg (char **, int, char *, char *, struct stat *, int);
static int sendaux (char **, int, char *, char *, struct stat *);
-static int attach(char *, char *, int);
-static void clean_up_temporary_files(void);
-static int get_line(void);
-static void make_mime_composition_file_entry(char *, int, char *);
-static char *mime_type (const char *);
-
/*
* Entry point into (back-end) routines to send message.
struct stat sts;
char *original_draft; /* name of original draft file */
char *p; /* string pointer for building file name */
+ char composition_file_name[PATH_MAX + 1]; /* name of mhbuild composition temporary file */
+ char body_file_name[PATH_MAX + 1]; /* name of temporary file for body content */
/*
* Save the original name of the draft file. The name of the draft file is changed
*/
if (attachment_header_field_name != (char *)0) {
- switch (attach(attachment_header_field_name, drft, attachformat)) {
+ switch (attach(attachment_header_field_name, drft,
+ body_file_name, sizeof body_file_name,
+ composition_file_name, sizeof composition_file_name,
+ attachformat)) {
case OK:
drft = composition_file_name;
break;
*/
if (drft == composition_file_name) {
- clean_up_temporary_files();
+ clean_up_temporary_files(body_file_name, composition_file_name);
if (strlen(composition_file_name) >= sizeof (composition_file_name) - 6)
advise((char *)0, "unable to remove original composition file.");
return status;
}
-static int
-attach(char *attachment_header_field_name, char *draft_file_name,
- int attachformat)
-{
- char buf[PATH_MAX + 6]; /* miscellaneous buffer */
- int c; /* current character for body copy */
- int has_attachment; /* draft has at least one attachment */
- int has_body; /* draft has a message body */
- int length; /* length of attachment header field name */
- char *p; /* miscellaneous string pointer */
- FILE *fp; /* pointer for mhn.defaults */
-
- /*
- * Open up the draft file.
- */
-
- if ((draft_file = fopen(draft_file_name, "r")) == (FILE *)0)
- adios((char *)0, "can't open draft file `%s'.", draft_file_name);
-
- /*
- * Allocate a buffer to hold the header components as they're read in.
- * This buffer might need to be quite large, so we grow it as needed.
- */
-
- field = (char *)mh_xmalloc(field_size = 256);
-
- /*
- * Scan the draft file for a header field name, with a non-empty
- * body, that matches the -attach argument. The existence of one
- * indicates that the draft has attachments. Bail out if there
- * are no attachments because we're done. Read to the end of the
- * headers even if we have no attachments.
- */
-
- length = strlen(attachment_header_field_name);
-
- has_attachment = 0;
-
- while (get_line() != EOF && *field != '\0' && *field != '-') {
- if (strncasecmp(field, attachment_header_field_name, length) == 0 &&
- field[length] == ':') {
- for (p = field + length + 1; *p == ' ' || *p == '\t'; p++)
- ;
- if (strlen (p) > 0) {
- has_attachment = 1;
- }
- }
- }
-
- if (has_attachment == 0)
- return (DONE);
-
- /*
- * We have at least one attachment. Look for at least one non-blank line
- * in the body of the message which indicates content in the body.
- */
-
- has_body = 0;
-
- while (get_line() != EOF) {
- for (p = field; *p != '\0'; p++) {
- if (*p != ' ' && *p != '\t') {
- has_body = 1;
- break;
- }
- }
-
- if (has_body)
- break;
- }
-
- /*
- * Make names for the temporary files.
- */
-
- (void)strncpy(body_file_name,
- m_mktemp(m_maildir(invo_name), NULL, NULL),
- sizeof (body_file_name));
- (void)strncpy(composition_file_name,
- m_mktemp(m_maildir(invo_name), NULL, NULL),
- sizeof (composition_file_name));
-
- if (has_body)
- body_file = fopen(body_file_name, "w");
-
- composition_file = fopen(composition_file_name, "w");
-
- if ((has_body && body_file == (FILE *)0) || composition_file == (FILE *)0) {
- clean_up_temporary_files();
- adios((char *)0, "unable to open all of the temporary files.");
- }
-
- /*
- * Start at the beginning of the draft file. Copy all
- * non-attachment header fields to the temporary composition
- * file. Then add the dashed line separator.
- */
-
- rewind(draft_file);
-
- while (get_line() != EOF && *field != '\0' && *field != '-')
- if (strncasecmp(field, attachment_header_field_name, length) != 0 ||
- field[length] != ':')
- (void)fprintf(composition_file, "%s\n", field);
-
- (void)fputs("--------\n", composition_file);
-
- /*
- * Copy the message body to a temporary file.
- */
-
- if (has_body) {
- while ((c = getc(draft_file)) != EOF)
- putc(c, body_file);
-
- (void)fclose(body_file);
- }
-
- /*
- * Add a mhbuild MIME composition file line for the body if there was one.
- * Set the default content type to text/plain so that mhbuild takes care
- * of any necessary encoding.
- */
-
- if (has_body)
- make_mime_composition_file_entry(body_file_name, attachformat,
- "text/plain");
-
- /*
- * Now, go back to the beginning of the draft file and look for
- * header fields that specify attachments. Add a mhbuild MIME
- * composition file for each.
- */
-
- if ((fp = fopen (p = etcpath ("mhn.defaults"), "r"))) {
- readconfig ((struct node **) NULL, fp, p, 0);
- fclose(fp);
- }
-
- rewind(draft_file);
-
- while (get_line() != EOF && *field != '\0' && *field != '-') {
- if (strncasecmp(field, attachment_header_field_name, length) == 0 &&
- field[length] == ':') {
- for (p = field + length + 1; *p == ' ' || *p == '\t'; p++)
- ;
-
- /* Skip empty attachment_header_field_name lines. */
- if (strlen (p) > 0) {
- struct stat st;
- if (stat (p, &st) == OK) {
- if (S_ISREG (st.st_mode)) {
- /* Don't set the default content type so take
- make_mime_composition_file_entry() will try
- to infer it from the file type. */
- make_mime_composition_file_entry(p, attachformat, 0);
- } else {
- adios (NULL, "unable to attach %s, not a plain file",
- p);
- }
- } else {
- adios (NULL, "unable to access file \"%s\"", p);
- }
- }
- }
- }
-
- (void)fclose(composition_file);
-
- /*
- * We're ready to roll! Run mhbuild on the composition file.
- * Note that mhbuild is in the context as buildmimeproc.
- */
-
- (void)sprintf(buf, "%s %s", buildmimeproc, composition_file_name);
-
- if (system(buf) != 0) {
- clean_up_temporary_files();
- return (NOTOK);
- }
-
- return (OK);
-}
-
-static void
-clean_up_temporary_files(void)
-{
- (void)unlink(body_file_name);
- (void)unlink(composition_file_name);
-
- return;
-}
-
-static int
-get_line(void)
-{
- int c; /* current character */
- int n; /* number of bytes in buffer */
- char *p; /* buffer pointer */
-
- /*
- * Get a line from the input file, growing the field buffer as needed. We do this
- * so that we can fit an entire line in the buffer making it easy to do a string
- * comparison on both the field name and the field body which might be a long path
- * name.
- */
-
- for (n = 0, p = field; (c = getc(draft_file)) != EOF; *p++ = c) {
- if (c == '\n' && (c = getc(draft_file)) != ' ' && c != '\t') {
- (void)ungetc(c, draft_file);
- c = '\n';
- break;
- }
-
- if (++n >= field_size - 1) {
- field = (char *)mh_xrealloc((void *)field, field_size += 256);
-
- p = field + n - 1;
- }
- }
-
- /*
- * NUL-terminate the field..
- */
-
- *p = '\0';
-
- return (c);
-}
-
-static void
-make_mime_composition_file_entry(char *file_name, int attachformat,
- char *default_content_type)
-{
- int binary; /* binary character found flag */
- int c; /* current character */
- char cmd[PATH_MAX + 8]; /* file command buffer */
- char *content_type; /* mime content type */
- FILE *fp; /* content and pipe file pointer */
- struct node *np; /* context scan node pointer */
- char *p; /* miscellaneous string pointer */
- struct stat st; /* file status buffer */
-
- if ((content_type = mime_type (file_name)) == NULL) {
- /*
- * Check the file name for a suffix. Scan the context for
- * that suffix on a mhshow-suffix- entry. We use these
- * entries to be compatible with mhnshow, and there's no
- * reason to make the user specify each suffix twice. Context
- * entries of the form "mhshow-suffix-contenttype" in the name
- * have the suffix in the field, including the dot.
- */
- if ((p = strrchr(file_name, '.')) != (char *)0) {
- for (np = m_defs; np; np = np->n_next) {
- if (strncasecmp(np->n_name, "mhshow-suffix-", 14) == 0 &&
- strcasecmp(p, np->n_field ? np->n_field : "") == 0) {
- content_type = strdup (np->n_name + 14);
- break;
- }
- }
- }
-
- if (content_type == NULL && default_content_type != NULL) {
- content_type = strdup (default_content_type);
- }
- }
-
- /*
- * No content type was found, either because there was no matching entry in the
- * context or because the file name has no suffix. Open the file and check for
- * non-ASCII characters. Choose the content type based on this check.
- */
-
- if (content_type == (char *)0) {
- if ((fp = fopen(file_name, "r")) == (FILE *)0) {
- clean_up_temporary_files();
- adios((char *)0, "unable to access file \"%s\"", file_name);
- }
-
- binary = 0;
-
- while ((c = getc(fp)) != EOF) {
- if (c > 127 || c < 0) {
- binary = 1;
- break;
- }
- }
-
- (void)fclose(fp);
-
- content_type =
- strdup (binary ? "application/octet-stream" : "text/plain");
- }
-
- /*
- * Make sure that the attachment file exists and is readable. Append a mhbuild
- * directive to the draft file. This starts with the content type. Append a
- * file name attribute and a private x-unix-mode attribute. Also append a
- * description obtained (if possible) by running the "file" command on the file.
- */
-
- if (stat(file_name, &st) == -1 || access(file_name, R_OK) != 0) {
- clean_up_temporary_files();
- adios((char *)0, "unable to access file \"%s\"", file_name);
- }
-
- switch (attachformat) {
- case 0:
- /* Insert name, file mode, and Content-Id. */
- (void)fprintf(composition_file, "#%s; name=\"%s\"; x-unix-mode=0%.3ho",
- content_type, ((p = strrchr(file_name, '/')) == (char *)0) ? file_name : p + 1, (unsigned short)(st.st_mode & 0777));
-
- if (strlen(file_name) > PATH_MAX) {
- clean_up_temporary_files();
- adios((char *)0, "attachment file name `%s' too long.", file_name);
- }
-
- (void)sprintf(cmd, "file '%s'", file_name);
-
- if ((fp = popen(cmd, "r")) != (FILE *)0 && fgets(cmd, sizeof (cmd), fp) != (char *)0) {
- *strchr(cmd, '\n') = '\0';
-
- /*
- * The output of the "file" command is of the form
- *
- * file: description
- *
- * Strip off the "file:" and subsequent white space.
- */
-
- for (p = cmd; *p != '\0'; p++) {
- if (*p == ':') {
- for (p++; *p != '\0'; p++) {
- if (*p != '\t')
- break;
- }
- break;
- }
- }
-
- if (*p != '\0')
- /* Insert Content-Description. */
- (void)fprintf(composition_file, " [ %s ]", p);
-
- (void)pclose(fp);
- }
-
- break;
- case 1:
- if (stringdex (m_maildir(invo_name), file_name) == 0) {
- /* Content had been placed by send into a temp file.
- Don't generate Content-Disposition header, because
- it confuses Microsoft Outlook, Build 10.0.6626, at
- least. */
- (void) fprintf (composition_file, "#%s <>", content_type);
- } else {
- /* Suppress Content-Id, insert simple Content-Disposition
- and Content-Description with filename.
- The Content-Disposition type needs to be "inline" for
- MS Outlook and BlackBerry calendar programs to properly
- handle a text/calendar attachment. */
- p = strrchr(file_name, '/');
- (void) fprintf (composition_file,
- "#%s; name=\"%s\" <> [%s]{%s}",
- content_type,
- (p == (char *)0) ? file_name : p + 1,
- (p == (char *)0) ? file_name : p + 1,
- strcmp ("text/calendar", content_type)
- ? "attachment" : "inline");
- }
-
- break;
- case 2:
- if (stringdex (m_maildir(invo_name), file_name) == 0) {
- /* Content had been placed by send into a temp file.
- Don't generate Content-Disposition header, because
- it confuses Microsoft Outlook, Build 10.0.6626, at
- least. */
- (void) fprintf (composition_file, "#%s <>", content_type);
- } else {
- /* Suppress Content-Id, insert Content-Disposition with
- modification date and Content-Description wtih filename.
- The Content-Disposition type needs to be "inline" for
- MS Outlook and BlackBerry calendar programs to properly
- handle a text/calendar attachment. */
- p = strrchr(file_name, '/');
- (void) fprintf (composition_file,
- "#%s; name=\"%s\" <>[%s]{%s; "
- "modification-date=\"%s\"}",
- content_type,
- (p == (char *)0) ? file_name : p + 1,
- (p == (char *)0) ? file_name : p + 1,
- strcmp ("text/calendar", content_type)
- ? "attachment" : "inline",
- dtime (&st.st_mtime, 0));
- }
-
- break;
- default:
- adios ((char *)0, "unsupported attachformat %d", attachformat);
- }
-
- free (content_type);
-
- /*
- * Finish up with the file name.
- */
-
- (void)fprintf(composition_file, " %s\n", file_name);
-
- return;
-}
-
-/*
- * Try to use external command to determine mime type, and possibly
- * encoding. Caller is responsible for free'ing returned memory.
- */
-static char *
-mime_type (const char *file_name) {
- char *content_type = NULL; /* mime content type */
-
-#ifdef MIMETYPEPROC
- char cmd[2 * PATH_MAX + 2]; /* file command buffer */
- char buf[BUFSIZ >= 2048 ? BUFSIZ : 2048];
- FILE *fp; /* content and pipe file pointer */
- char mimetypeproc[] = MIMETYPEPROC " '%s'";
-
- if ((int) snprintf (cmd, sizeof cmd, mimetypeproc, file_name) <
- (int) sizeof cmd) {
- if ((fp = popen (cmd, "r")) != NULL) {
- /* Make sure that buf has space for one additional
- character, the semicolon that might be added below. */
- if (fgets (buf, sizeof buf - 1, fp)) {
- char *cp, *space;
-
- /* Skip leading <filename>:<whitespace>, if present. */
- if ((content_type = strchr (buf, ':')) != NULL) {
- ++content_type;
- while (*content_type && isblank (*content_type)) {
- ++content_type;
- }
- } else {
- content_type = buf;
- }
-
- /* Truncate at newline (LF or CR), if present. */
- if ((cp = strpbrk (content_type, "\n\n")) != NULL) {
- *cp = '\0';
- }
-
- /* If necessary, insert semicolon between content type
- and charset. Assume that the first space is between
- them. */
- if ((space = strchr (content_type, ' ')) != NULL) {
- ssize_t len = strlen (content_type);
-
- if (space - content_type > 0 &&
- len > space - content_type + 1) {
- if (*(space - 1) != ';') {
- /* The +1 is for the terminating NULL. */
- memmove (space + 1, space,
- len - (space - content_type) + 1);
- *space = ';';
- }
- }
- }
- } else {
- advise (NULL, "unable to read mime type");
- }
- } else {
- advise (NULL, "unable to run %s", buf);
- }
- } else {
- advise (NULL, "filename to large to deduce mime type");
- }
-#else
- NMH_UNUSED (file_name);
-#endif
-
- return content_type ? strdup (content_type) : NULL;
-}
-
/*
* Split large message into several messages of
* type "message/partial" and send them.
projects / nmh / commitdiff