-
-/*
- * sendsbr.c -- routines to help WhatNow/Send along
+/* sendsbr.c -- routines to help WhatNow/Send along
*
* This code is Copyright (c) 2002, by the authors of nmh. See the
* COPYRIGHT file in the root directory of the nmh distribution for
*/
#include <h/mh.h>
+#include <h/fmt_scan.h>
+#include <h/fmt_compile.h>
#include <h/signals.h>
#include <setjmp.h>
#include <fcntl.h>
#endif
#include <time.h>
+#ifdef OAUTH_SUPPORT
+#include <h/oauth.h>
+
+static int setup_oauth_params(char *[], int *, const char *, const char **);
+#endif /* OAUTH_SUPPORT */
+
int debugsw = 0; /* global */
int forwsw = 1;
int inplace = 1;
/*
* static prototypes
*/
-static void armed_done (int) NORETURN;
static void alert (char *, int);
static int tmp_fd (void);
static void anno (int, struct stat *);
static void annoaux (int);
static int splitmsg (char **, int, char *, char *, struct stat *, int);
static int sendaux (char **, int, char *, char *, struct stat *);
-
+static void handle_sendfrom(char **, int *, char *, const char *);
+static int get_from_header_info(const char *, const char **, const char **, const char **);
+static const char *get_message_header_info(FILE *, char *);
+static void merge_profile_entry(const char *, const char *, char *[], int *);
+static void armed_done (int) NORETURN;
/*
* Entry point into (back-end) routines to send message.
int
sendsbr (char **vec, int vecp, char *program, char *draft, struct stat *st,
- int rename_drft)
+ int rename_drft, const char *auth_svc)
{
int status, i;
pid_t child;
struct stat sts;
char **buildvec, *buildprogram;
char *volatile drft = draft;
+ /* nvecs is volatile to prevent warning from gcc about possible clobbering
+ by longjmp. */
+ volatile int nvecs = vecp;
+ int *nvecsp = (int *) &nvecs;
/*
* Run the mimebuildproc (which is by default mhbuild) on the message
break;
case OK:
- buildvec = argsplit(buildmimeproc, &buildprogram, &i);
+ buildvec = argsplit(buildmimeproc, &buildprogram, &i);
buildvec[i++] = "-auto";
if (distfile)
buildvec[i++] = "-dist";
done=armed_done;
switch (setjmp (env)) {
- case OK:
+ case OK:
/*
* If given -push and -unique (which is undocumented), then
* rename the draft file. I'm not quite sure why.
drft = file;
}
+ /*
+ * Add in any necessary profile entries for xoauth
+ */
+
+ if (auth_svc) {
+#ifdef OAUTH_SUPPORT
+ const char *errmsg;
+ if (setup_oauth_params(vec, nvecsp, auth_svc, &errmsg) != OK) {
+ adios(NULL, errmsg);
+ }
+#else
+ adios(NULL, "send built without OAUTH_SUPPORT, "
+ "so auth_svc %s is not supported", auth_svc);
+#endif /* OAUTH_SUPPORT */
+ }
+
+ /*
+ * Rework the vec based on From: header in draft, as specified
+ * by sendfrom-address entries in profile.
+ */
+ if (context_find_prefix("sendfrom-")) {
+ handle_sendfrom(vec, nvecsp, draft, auth_svc);
+ }
+
/*
* Check if we need to split the message into
* multiple messages of type "message/partial".
*/
if (splitsw >= 0 && !distfile && stat ((char *) drft, &sts) != NOTOK
&& sts.st_size >= CPERMSG) {
- status = splitmsg (vec, vecp, program, drft,
+ status = splitmsg (vec, nvecs, program, drft,
st, splitsw) ? NOTOK : OK;
} else {
- status = sendaux (vec, vecp, program, drft, st) ? NOTOK : OK;
+ status = sendaux (vec, nvecs, program, drft, st) ? NOTOK : OK;
}
/* rename the original draft */
advise (buffer, "unable to rename %s to", drft);
break;
- default:
+ default:
status = DONE;
break;
}
int compnum, nparts, partno, state, status;
long pos, start;
time_t clock;
- char *cp, *dp, buffer[BUFSIZ], msgid[BUFSIZ];
+ char *cp, *dp, buffer[NMH_BUFSIZ], msgid[BUFSIZ];
char subject[BUFSIZ];
char name[NAMESZ], partnum[BUFSIZ];
FILE *in;
nparts = 1;
pos = start;
- while (fgets (buffer, sizeof(buffer) - 1, in)) {
+ while (fgets (buffer, sizeof buffer, in)) {
long len;
if ((pos += (len = strlen (buffer))) > CPERMSG) {
/* Only one part, nothing to split */
if (nparts == 1) {
free (cp);
- if (dp)
- free (dp);
+ mh_xfree(dp);
fclose (in);
return sendaux (vec, vecp, program, drft, st);
for (;;) {
long len;
- if (!fgets (buffer, sizeof(buffer) - 1, in)) {
+ if (!fgets (buffer, sizeof buffer, in)) {
if (partno == nparts)
break;
adios (NULL, "premature eof");
}
-
+
if ((pos += (len = strlen (buffer))) > CPERMSG) {
fseek (in, -len, SEEK_CUR);
break;
fclose (out);
if (!pushsw && verbsw) {
- printf ("\n");
+ putchar('\n');
fflush (stdout);
}
}
free (cp);
- if (dp)
- free (dp);
+ mh_xfree(dp);
fclose (in); /* close the draft */
return status;
snprintf (buf, sizeof(buf), "%d", fd2);
vec[vecp++] = buf;
} else {
- admonish (NULL, "unable to create temporary file in %s "
- "for annotation list", get_temp_dir());
+ inform("unable to create temporary file in %s for "
+ "annotation list, continuing...", get_temp_dir());
}
}
vec[vecp++] = drft;
/*
* child process -- send it
*
- * If fd is ok, then we are pushing and fd points to temp
+ * If fd is OK, then we are pushing and fd points to temp
* file, so capture anything on stdout and stderr there.
*/
if (fd != NOTOK) {
alert (drft, fd);
close (fd);
} else {
- advise (NULL, "message not delivered to anyone");
+ inform("message not delivered to anyone");
}
if (annotext && fd2 != NOTOK)
close (fd2);
case NOTOK:
/* oops -- fork error */
advise ("fork", "unable to");
+ /* FALLTHRU */
case OK:
/* child process -- send it */
if ((tfile = m_mktemp2(NULL, invo_name, &fd, NULL)) == NULL) return NOTOK;
if (debugsw)
- advise (NULL, "temporary file %s selected", tfile);
+ inform("temporary file %s selected", tfile);
else
if (m_unlink (tfile) == NOTOK)
advise (tfile, "unable to remove");
|| st->st_dev != st2.st_dev
|| st->st_ino != st2.st_ino)) {
if (debugsw)
- admonish (NULL, "$mhaltmsg mismatch");
+ inform("$mhaltmsg mismatch, continuing...");
return;
}
switch (child_id) {
case NOTOK: /* oops */
if (!debugsw)
- advise (NULL,
- "unable to fork, so doing annotations by hand...");
+ inform("unable to fork, so doing annotations by hand...");
if (cwd == NULL)
- cwd = getcpy (pwd ());
+ cwd = mh_xstrdup(pwd ());
+ /* FALLTHRU */
- case OK:
+ case OK:
/* block a few signals */
sigemptyset (&set);
sigaddset (&set, SIGHUP);
if ((folder = getenv ("mhfolder")) == NULL || *folder == 0) {
if (debugsw)
- admonish (NULL, "$mhfolder not set");
+ inform("$mhfolder not set, continuing...");
return;
}
maildir = m_maildir (folder);
}
if (!(mp = folder_read (folder, 0))) {
if (debugsw)
- admonish (NULL, "unable to read folder %s", folder);
+ inform("unable to read folder %s, continuing...", folder);
return;
}
/* check for empty folder */
if (mp->nummsg == 0) {
if (debugsw)
- admonish (NULL, "no messages in %s", folder);
+ inform("no messages in %s, continuing...", folder);
goto oops;
}
if ((cp = getenv ("mhmessages")) == NULL || *cp == 0) {
if (debugsw)
- admonish (NULL, "$mhmessages not set");
+ inform("$mhmessages not set, continuing...");
goto oops;
}
if (!debugsw /* MOBY HACK... */
}
else
fd2 = NOTOK;
- for (ap = brkstring (cp = getcpy (cp), " ", NULL); *ap; ap++)
+ for (ap = brkstring (cp = mh_xstrdup(cp), " ", NULL); *ap; ap++)
m_convert (mp, *ap);
free (cp);
if (fd2 != NOTOK)
dup2 (fd2, fileno (stderr));
if (mp->numsel == 0) {
if (debugsw)
- admonish (NULL, "no messages to annotate");
+ inform("no messages to annotate, continuing...");
goto oops;
}
lseek (fd, (off_t) 0, SEEK_SET);
if ((fp = fdopen (fd, "r")) == NULL) {
if (debugsw)
- admonish (NULL, "unable to fdopen annotation list");
+ inform("unable to fdopen annotation list, continuing...");
goto oops;
}
cp = NULL;
fclose (fp);
if (debugsw)
- advise (NULL, "annotate%s with %s: \"%s\"",
+ inform("annotate%s with %s: \"%s\"",
inplace ? " inplace" : "", annotext, cp);
for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
if (is_selected(mp, msgnum)) {
if (debugsw)
- advise (NULL, "annotate message %d", msgnum);
+ inform("annotate message %d", msgnum);
annotate (m_name (msgnum), annotext, cp, inplace, 1, -2, 0);
}
}
}
+static
+void
+handle_sendfrom(char **vec, int *vecp, char *draft, const char *auth_svc) {
+ const char *addr, *host;
+ const char *message;
+
+ /* Extract address and host from From: header line in draft. */
+ if (get_from_header_info(draft, &addr, &host, &message) != OK) {
+ adios(draft, message);
+ }
+
+ /* Merge in any address or host specific switches to post(1) from profile. */
+ merge_profile_entry(addr, host, vec, vecp);
+ free((void *) host);
+ free((void *) addr);
+
+ vec[*vecp] = NULL;
+
+ {
+ char **vp;
+
+ for (vp = vec; *vp; ++vp) {
+ if (strcmp(*vp, "xoauth2") == 0) {
+#ifdef OAUTH_SUPPORT
+ if (setup_oauth_params(vec, vecp, auth_svc, &message) != OK) {
+ adios(NULL, message);
+ }
+ break;
+#else
+ NMH_UNUSED(auth_svc);
+ adios(NULL, "send built without OAUTH_SUPPORT, "
+ "so -saslmech xoauth2 is not supported");
+#endif /* OAUTH_SUPPORT */
+ }
+ }
+ }
+}
+
+
+#ifdef OAUTH_SUPPORT
+/*
+ * For XOAUTH2, append profile entries so post can do the heavy lifting
+ */
+static int
+setup_oauth_params(char *vec[], int *vecp, const char *auth_svc,
+ const char **message) {
+ const char *saslmech = NULL, *user = NULL;
+ mh_oauth_service_info svc;
+ char errbuf[256];
+ int i;
+
+ /* Make sure we have all the information we need. */
+ for (i = 1; i < *vecp; ++i) {
+ /* Don't support abbreviated switches, to avoid collisions in the
+ future if new ones are added. */
+ if (! strcmp(vec[i-1], "-saslmech")) {
+ saslmech = vec[i];
+ } else if (! strcmp(vec[i-1], "-user")) {
+ user = vec[i];
+ } else if (! strcmp(vec[i-1], "-authservice")) {
+ auth_svc = vec[i];
+ }
+ }
+
+ if (auth_svc == NULL) {
+ if (saslmech && ! strcasecmp(saslmech, "xoauth2")) {
+ *message = "must specify -authservice with -saslmech xoauth2";
+ return NOTOK;
+ }
+ } else {
+ if (user == NULL) {
+ *message = "must specify -user with -saslmech xoauth2";
+ return NOTOK;
+ }
+
+ if (saslmech && ! strcasecmp(saslmech, "xoauth2")) {
+ if (! mh_oauth_get_service_info(auth_svc, &svc, errbuf,
+ sizeof(errbuf)))
+ adios(NULL, "Unable to retrieve oauth profile entries: %s",
+ errbuf);
+
+ vec[(*vecp)++] = mh_xstrdup("-authservice");
+ vec[(*vecp)++] = mh_xstrdup(auth_svc);
+ vec[(*vecp)++] = mh_xstrdup("-oauthcredfile");
+ vec[(*vecp)++] = mh_xstrdup(mh_oauth_cred_fn(auth_svc));
+ vec[(*vecp)++] = mh_xstrdup("-oauthclientid");
+ vec[(*vecp)++] = getcpy(svc.client_id);
+ vec[(*vecp)++] = mh_xstrdup("-oauthclientsecret");
+ vec[(*vecp)++] = getcpy(svc.client_secret);
+ vec[(*vecp)++] = mh_xstrdup("-oauthauthendpoint");
+ vec[(*vecp)++] = getcpy(svc.auth_endpoint);
+ vec[(*vecp)++] = mh_xstrdup("-oauthredirect");
+ vec[(*vecp)++] = getcpy(svc.redirect_uri);
+ vec[(*vecp)++] = mh_xstrdup("-oauthtokenendpoint");
+ vec[(*vecp)++] = getcpy(svc.token_endpoint);
+ vec[(*vecp)++] = mh_xstrdup("-oauthscope");
+ vec[(*vecp)++] = getcpy(svc.scope);
+ }
+ }
+
+ return 0;
+}
+#endif /* OAUTH_SUPPORT */
+
+
+/*
+ * Extract user and domain from From: header line in draft.
+ */
+static
+int
+get_from_header_info(const char *filename, const char **addr, const char **host, const char **message) {
+ struct stat st;
+ FILE *in;
+
+ if (stat (filename, &st) == NOTOK) {
+ *message = "unable to stat draft file";
+ return NOTOK;
+ }
+
+ if ((in = fopen (filename, "r")) != NULL) {
+ /* There must be a non-blank Envelope-From or {Resent-}Sender or
+ {Resent-}From header. */
+ char *addrformat = "%(addr{Envelope-From})";
+ char *hostformat = "%(host{Envelope-From})";
+
+ if ((*addr = get_message_header_info (in, addrformat)) == NULL ||
+ !**addr) {
+ addrformat = distfile == NULL ? "%(addr{Sender})" : "%(addr{Resent-Sender})";
+ hostformat = distfile == NULL ? "%(host{Sender})" : "%(host{Resent-Sender})";
+
+ if ((*addr = get_message_header_info (in, addrformat)) == NULL) {
+ addrformat = distfile == NULL ? "%(addr{From})" : "%(addr{Resent-From})";
+ hostformat = distfile == NULL ? "%(host{From})" : "%(host{Resent-From})";
+
+ if ((*addr = get_message_header_info (in, addrformat)) == NULL) {
+ *message = "unable to find sender address in";
+ fclose(in);
+ return NOTOK;
+ }
+ }
+ }
+
+ /* Use the hostformat that corresponds to the successful addrformat. */
+ if ((*host = get_message_header_info(in, hostformat)) == NULL) {
+ fclose(in);
+ *message = "unable to find sender host in";
+ fclose(in);
+ return NOTOK;
+ }
+ fclose(in);
+
+ return OK;
+ }
+
+ *message = "unable to open";
+ return NOTOK;
+}
+
+
+/*
+ * Get formatted information from header of a message.
+ * Adapted from process_single_file() in uip/fmttest.c.
+ */
+static
+const char *
+get_message_header_info(FILE *in, char *format) {
+ int dat[5];
+ struct format *fmt;
+ struct stat st;
+ int parsing_header;
+ m_getfld_state_t gstate = 0;
+ charstring_t buffer = charstring_create(0);
+ char *retval;
+
+ dat[0] = dat[1] = dat[4] = 0;
+ dat[2] = fstat(fileno(in), &st) == 0 ? st.st_size : 0;
+ dat[3] = INT_MAX;
+
+ (void) fmt_compile(new_fs(NULL, NULL, format), &fmt, 1);
+ free_fs();
+
+ /*
+ * Read in the message and process the header.
+ */
+ rewind (in);
+ parsing_header = 1;
+ do {
+ char name[NAMESZ], rbuf[NMH_BUFSIZ];
+ int bufsz = sizeof rbuf;
+ int state = m_getfld(&gstate, name, rbuf, &bufsz, in);
+
+ switch (state) {
+ case FLD:
+ case FLDPLUS: {
+ int bucket = fmt_addcomptext(name, rbuf);
+
+ if (bucket != -1) {
+ while (state == FLDPLUS) {
+ bufsz = sizeof rbuf;
+ state = m_getfld(&gstate, name, rbuf, &bufsz, in);
+ fmt_appendcomp(bucket, name, rbuf);
+ }
+ }
+
+ while (state == FLDPLUS) {
+ bufsz = sizeof rbuf;
+ state = m_getfld(&gstate, name, rbuf, &bufsz, in);
+ }
+ break;
+ }
+ default:
+ parsing_header = 0;
+ }
+ } while (parsing_header);
+ m_getfld_state_destroy(&gstate);
+
+ fmt_scan(fmt, buffer, INT_MAX, dat, NULL);
+ fmt_free(fmt, 1);
+
+ /* Trim trailing newline, if any. */
+ retval = rtrim(charstring_buffer_copy((buffer)));
+ charstring_free(buffer);
+ if (*retval)
+ return retval;
+
+ free(retval);
+ return NULL;
+}
+
+
+/*
+ * Look in profile for entry corresponding to addr or host, and add its contents to vec.
+ *
+ * Could do some of this automatically, by looking for:
+ * 1) access-$(mbox{from}) in oauth-svc file using mh_oauth_cred_load(), which isn't
+ * static and doesn't have side effects; free the result with mh_oauth_cred_free())
+ * 2) machine $(mbox{from}) in creds
+ * If no -server passed in from profile or commandline, could use smtp.<svc>.com for gmail,
+ * but that might not generalize for other svcs.
+ */
+static
+void
+merge_profile_entry(const char *addr, const char *host, char *vec[], int *vecp) {
+ char *addr_entry = concat("sendfrom-", addr, NULL);
+ char *profile_entry = context_find(addr_entry);
+
+ free(addr_entry);
+ if (profile_entry == NULL) {
+ /* No entry for the user. Look for one for the host. */
+ char *host_entry = concat("sendfrom-", host, NULL);
+
+ profile_entry = context_find(host_entry);
+ free(host_entry);
+ }
+
+ /* Use argsplit() to do the real work of splitting the args in the profile entry. */
+ if (profile_entry && *profile_entry) {
+ int profile_vecp;
+ char *file;
+ char **profile_vec = argsplit(profile_entry, &file, &profile_vecp);
+ int i;
+
+ for (i = 0; i < profile_vecp; ++i) {
+ vec[(*vecp)++] = getcpy(profile_vec[i]);
+ }
+
+ arglist_free(file, profile_vec);
+ }
+}
+
+
static void
armed_done (int status)
{
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