#include "msgbase.h"
#include "tools.h"
#include "internet_addressing.h"
+#include "mime_parser.h"
#include "serv_imap.h"
#include "imap_tools.h"
#include "imap_fetch.h"
+struct imap_fetch_part {
+ char desired_section[256];
+ FILE *output_fp;
+};
+
/*
* Individual field functions for imap_do_fetch_msg() ...
*/
* "RFC822.SIZE" size of translated message
* "RFC822.TEXT" body only (without leading blank line)
*/
-void imap_fetch_rfc822(int msgnum, char *whichfmt) {
+void imap_fetch_rfc822(int msgnum, char *whichfmt, struct CtdlMessage *msg) {
FILE *tmp;
char buf[1024];
char *ptr;
* Load the message into a temp file for translation and measurement
*/
CtdlRedirectOutput(tmp, -1);
- CtdlOutputMsg(msgnum, MT_RFC822, 0, 0, 1);
+ CtdlOutputPreLoadedMsg(msg, msgnum, MT_RFC822, 0, 0, 1);
CtdlRedirectOutput(NULL, -1);
+ if (!is_valid_message(msg)) {
+ lprintf(1, "WARNING: output clobbered the message!\n");
+ }
/*
* Now figure out where the headers/text break is. IMAP considers the
}
+
+/*
+ * Load a specific part of a message into the temp file to be output to a
+ * client. FIXME we can handle parts like "2" and "2.1" and even "2.MIME"
+ * but we still can't handle "2.HEADER" (which might not be a problem, because
+ * we currently don't have the ability to break out nested RFC822's anyway).
+ *
+ * Note: mime_parser() was called with dont_decode set to 1, so we have the
+ * luxury of simply spewing without having to re-encode.
+ */
+void imap_load_part(char *name, char *filename, char *partnum, char *disp,
+ void *content, char *cbtype, size_t length, char *encoding,
+ void *cbuserdata)
+{
+ struct imap_fetch_part *imfp;
+ char mbuf2[1024];
+
+ imfp = (struct imap_fetch_part *)cbuserdata;
+
+ if (!strcasecmp(partnum, imfp->desired_section)) {
+ fwrite(content, length, 1, imfp->output_fp);
+ }
+
+ sprintf(mbuf2, "%s.MIME", partnum);
+
+ if (!strcasecmp(imfp->desired_section, mbuf2)) {
+ fprintf(imfp->output_fp, "Content-type: %s", cbtype);
+ if (strlen(name) > 0)
+ fprintf(imfp->output_fp, "; name=\"%s\"", name);
+ fprintf(imfp->output_fp, "\r\n");
+ if (strlen(encoding) > 0)
+ fprintf(imfp->output_fp,
+ "Content-Transfer-Encoding: %s\r\n", encoding);
+ if (strlen(encoding) > 0) {
+ fprintf(imfp->output_fp, "Content-Disposition: %s",
+ disp);
+ if (strlen(filename) > 0) {
+ fprintf(imfp->output_fp, "; filename=\"%s\"",
+ filename);
+ }
+ fprintf(imfp->output_fp, "\r\n");
+ }
+ fprintf(imfp->output_fp, "Content-Length: %d\r\n", length);
+ fprintf(imfp->output_fp, "\r\n");
+ }
+
+
+}
+
+
+/*
+ * Called by imap_fetch_envelope() to output the "From" field.
+ * This is in its own function because its logic is kind of complex. We
+ * really need to make this suck less.
+ */
+void imap_output_envelope_from(struct CtdlMessage *msg) {
+ char user[1024], node[1024], name[1024];
+
+ cprintf("(("); /* open double-parens */
+ imap_strout(msg->cm_fields['A']); /* personal name */
+ cprintf(" NIL "); /* source route (not used) */
+
+ if (msg->cm_fields['F'] != NULL) {
+ process_rfc822_addr(msg->cm_fields['F'], user, node, name);
+ imap_strout(user); /* mailbox name (user id) */
+ cprintf(" ");
+ if (!strcasecmp(node, config.c_nodename)) {
+ imap_strout(config.c_fqdn);
+ }
+ else {
+ imap_strout(node); /* host name */
+ }
+ }
+ else {
+ imap_strout(msg->cm_fields['A']); /* mailbox name (user id) */
+ cprintf(" ");
+ imap_strout(msg->cm_fields['N']); /* host name */
+ }
+
+ cprintf(")) "); /* close double-parens */
+}
+
+
+/*
+ * Implements the ENVELOPE fetch item
+ *
+ * FIXME ... we only output some of the fields right now. Definitely need
+ * to do all of them. Accurately, too.
+ *
+ * Note that the imap_strout() function can cleverly output NULL fields as NIL,
+ * so we don't have to check for that condition like we do elsewhere.
+ */
+void imap_fetch_envelope(long msgnum, struct CtdlMessage *msg) {
+ char datestringbuf[256];
+ time_t msgdate;
+ char *fieldptr = NULL;
+
+ /* Parse the message date into an IMAP-format date string */
+ if (msg->cm_fields['T'] != NULL) {
+ msgdate = atol(msg->cm_fields['T']);
+ }
+ else {
+ msgdate = time(NULL);
+ }
+ datestring(datestringbuf, msgdate, DATESTRING_IMAP);
+
+ /* Now start spewing data fields. The order is important, as it is
+ * defined by the protocol specification. Nonexistent fields must
+ * be output as NIL, existent fields must be quoted or literalled.
+ * The imap_strout() function conveniently does all this for us.
+ */
+ cprintf("ENVELOPE (");
+
+ /* Date */
+ imap_strout(datestringbuf);
+ cprintf(" ");
+
+ /* Subject */
+ imap_strout(msg->cm_fields['U']);
+ cprintf(" ");
+
+ /* From */
+ imap_output_envelope_from(msg);
+
+ /* Sender */
+ if (0) {
+ /* FIXME ... check for a *real* Sender: field */
+ }
+ else {
+ imap_output_envelope_from(msg);
+ }
+
+ /* Reply-to */
+ if (0) {
+ /* FIXME ... check for a *real* Reply-to: field */
+ }
+ else {
+ imap_output_envelope_from(msg);
+ }
+
+ cprintf("NIL "); /* to */
+
+ cprintf("NIL "); /* cc */
+
+ cprintf("NIL "); /* bcc */
+
+ /* In-reply-to */
+ fieldptr = rfc822_fetch_field(msg->cm_fields['M'], "In-reply-to");
+ imap_strout(fieldptr);
+ cprintf(" ");
+ if (fieldptr != NULL) phree(fieldptr);
+
+ /* message ID */
+ imap_strout(msg->cm_fields['I']);
+
+ cprintf(") ");
+}
+
+
+/*
+ * Strip any non header information out of a chunk of RFC822 data on disk
+ */
+void imap_strip_headers(FILE *fp) {
+ char buf[1024];
+
+ rewind(fp);
+ while (fgets(buf, sizeof buf, fp) != NULL) {
+ striplt(buf);
+ if (strlen(buf) == 0) {
+ fflush(fp);
+ ftruncate(fileno(fp), ftell(fp));
+ }
+ }
+ fflush(fp);
+ fprintf(fp, "\r\n"); /* add the trailing newline */
+ rewind(fp);
+}
+
+
/*
* Implements the BODY and BODY.PEEK fetch items
*/
-void imap_fetch_body(long msgnum, char *item, int is_peek) {
+void imap_fetch_body(long msgnum, char *item, int is_peek,
+ struct CtdlMessage *msg) {
char section[1024];
char partial[1024];
int is_partial = 0;
long bytes_remaining = 0;
long blocksize;
long pstart, pbytes;
+ struct imap_fetch_part imfp;
/* extract section */
strcpy(section, item);
for (i=0; i<strlen(partial); ++i) {
if (partial[i]=='>') partial[i] = 0;
}
+ if (is_partial == 0) strcpy(partial, "");
lprintf(9, "Partial is %s\n", partial);
tmp = tmpfile();
if (!strcmp(section, "")) { /* the whole thing */
CtdlRedirectOutput(tmp, -1);
- CtdlOutputMsg(msgnum, MT_RFC822, 0, 0, 1);
+ CtdlOutputPreLoadedMsg(msg, msgnum, MT_RFC822, 0, 0, 1);
CtdlRedirectOutput(NULL, -1);
}
*/
else if (!strncasecmp(section, "HEADER", 6)) {
CtdlRedirectOutput(tmp, -1);
- CtdlOutputMsg(msgnum, MT_RFC822, 1, 0, 1);
+ CtdlOutputPreLoadedMsg(msg, msgnum, MT_RFC822, 1, 0, 1);
CtdlRedirectOutput(NULL, -1);
+ imap_strip_headers(tmp);
+ }
+
+ /*
+ * Anything else must be a part specifier.
+ * (Note value of 1 passed as 'dont_decode' so client gets it encoded)
+ */
+ else {
+ safestrncpy(imfp.desired_section, section,
+ sizeof(imfp.desired_section));
+ imfp.output_fp = tmp;
+
+ mime_parser(msg->cm_fields['M'], NULL,
+ *imap_load_part,
+ (void *)&imfp,
+ 1);
}
}
+/*
+ * Spew the BODYSTRUCTURE data for a message. (Do you need a silencer if
+ * you're going to shoot a MIME? Do you need a reason to shoot Mark Crispin?
+ * No, and no.)
+ *
+ * FIXME finish the implementation
+ */
+void imap_fetch_bodystructure (long msgnum, char *item,
+ struct CtdlMessage *msg) {
+ FILE *tmp;
+ char buf[1024];
+ long lines = 0L;
+ long bytes = 0L;
+
+
+ /* For non-RFC822 (ordinary Citadel) messages, this is short and
+ * sweet...
+ */
+ if (msg->cm_format_type != FMT_RFC822) {
+
+ /* *sigh* We have to RFC822-format the message just to be able
+ * to measure it.
+ */
+ tmp = tmpfile();
+ if (tmp == NULL) return;
+ CtdlRedirectOutput(tmp, -1);
+ CtdlOutputPreLoadedMsg(msg, msgnum, MT_RFC822, 0, 0, 1);
+ CtdlRedirectOutput(NULL, -1);
+
+ rewind(tmp);
+ while (fgets(buf, sizeof buf, tmp) != NULL) ++lines;
+ bytes = ftell(tmp);
+ fclose(tmp);
+
+ cprintf("BODYSTRUCTURE (\"TEXT\" \"PLAIN\" "
+ "(\"CHARSET\" \"US-ASCII\") NIL NIL "
+ "\"7BIT\" %ld %ld) ", bytes, lines);
+
+ return;
+ }
+
+ /* For messages already stored in RFC822 format, we have to parse. */
+ /* FIXME do this! */
+
+
+}
+
+
+
+
+
/*
* imap_do_fetch() calls imap_do_fetch_msg() to output the deta of an
for (i=0; i<num_items; ++i) {
if (!strncasecmp(itemlist[i], "BODY[", 5)) {
- imap_fetch_body(IMAP->msgids[seq-1], itemlist[i], 0);
+ imap_fetch_body(IMAP->msgids[seq-1], itemlist[i],
+ 0, msg);
}
else if (!strncasecmp(itemlist[i], "BODY.PEEK[", 10)) {
- imap_fetch_body(IMAP->msgids[seq-1], itemlist[i], 1);
+ imap_fetch_body(IMAP->msgids[seq-1], itemlist[i],
+ 1, msg);
}
else if (!strcasecmp(itemlist[i], "BODYSTRUCTURE")) {
- /* FIXME do something here */
+ imap_fetch_bodystructure(IMAP->msgids[seq-1],
+ itemlist[i], msg);
}
else if (!strcasecmp(itemlist[i], "ENVELOPE")) {
- /* FIXME do something here */
+ imap_fetch_envelope(IMAP->msgids[seq-1], msg);
}
else if (!strcasecmp(itemlist[i], "FLAGS")) {
imap_fetch_flags(msg);
imap_fetch_internaldate(msg);
}
else if (!strcasecmp(itemlist[i], "RFC822")) {
- imap_fetch_rfc822(IMAP->msgids[seq-1], itemlist[i]);
+ imap_fetch_rfc822(IMAP->msgids[seq-1], itemlist[i], msg);
}
else if (!strcasecmp(itemlist[i], "RFC822.HEADER")) {
- imap_fetch_rfc822(IMAP->msgids[seq-1], itemlist[i]);
+ imap_fetch_rfc822(IMAP->msgids[seq-1], itemlist[i], msg);
}
else if (!strcasecmp(itemlist[i], "RFC822.SIZE")) {
- imap_fetch_rfc822(IMAP->msgids[seq-1], itemlist[i]);
+ imap_fetch_rfc822(IMAP->msgids[seq-1], itemlist[i], msg);
}
else if (!strcasecmp(itemlist[i], "RFC822.TEXT")) {
- imap_fetch_rfc822(IMAP->msgids[seq-1], itemlist[i]);
+ imap_fetch_rfc822(IMAP->msgids[seq-1], itemlist[i], msg);
}
else if (!strcasecmp(itemlist[i], "UID")) {
imap_fetch_uid(seq);
projects / citadel.git / blobdiff