#include "serv_imap.h"
#include "imap_tools.h"
#include "imap_fetch.h"
+#include "genstamp.h"
-void imap_do_fetch(int lo, int hi, char *items) {
+/*
+ * Individual field functions for imap_do_fetch_msg() ...
+ */
+
+
+
+void imap_fetch_uid(int seq) {
+ cprintf("UID %ld", IMAP->msgids[seq-1]);
}
+void imap_fetch_internaldate(struct CtdlMessage *msg) {
+ char buf[256];
+ time_t msgdate;
+
+ if (msg->cm_fields['T'] != NULL) {
+ msgdate = atol(msg->cm_fields['T']);
+ }
+ else {
+ msgdate = time(NULL);
+ }
+
+ datestring(buf, msgdate, DATESTRING_IMAP);
+ cprintf("INTERNALDATE \"%s\"", buf);
+}
+
+
+/*
+ * imap_do_fetch() calls imap_do_fetch_msg() to output the deta of an
+ * individual message, once it has been successfully loaded from disk.
+ */
+void imap_do_fetch_msg(int seq, struct CtdlMessage *msg,
+ int num_items, char **itemlist) {
+ int i;
+
+ cprintf("* %d FETCH (", seq);
+
+ for (i=0; i<num_items; ++i) {
+
+ if (!strncasecmp(itemlist[i], "BODY[", 5)) {
+ /* FIXME do something here */
+ }
+ else if (!strncasecmp(itemlist[i], "BODY.PEEK[", 10)) {
+ /* FIXME do something here */
+ }
+ else if (!strcasecmp(itemlist[i], "BODYSTRUCTURE")) {
+ /* FIXME do something here */
+ }
+ else if (!strcasecmp(itemlist[i], "ENVELOPE")) {
+ /* FIXME do something here */
+ }
+ else if (!strcasecmp(itemlist[i], "FLAGS")) {
+ /* FIXME do something here */
+ }
+ else if (!strcasecmp(itemlist[i], "INTERNALDATE")) {
+ imap_fetch_internaldate(msg);
+ }
+ else if (!strcasecmp(itemlist[i], "RFC822")) {
+ /* FIXME do something here */
+ }
+ else if (!strcasecmp(itemlist[i], "RFC822.HEADER")) {
+ /* FIXME do something here */
+ }
+ else if (!strcasecmp(itemlist[i], "RFC822.SIZE")) {
+ /* FIXME do something here */
+ }
+ else if (!strcasecmp(itemlist[i], "RFC822.TEXT")) {
+ /* FIXME do something here */
+ }
+ else if (!strcasecmp(itemlist[i], "UID")) {
+ imap_fetch_uid(seq);
+ }
+
+ if (i != num_items-1) cprintf(" ");
+ }
+
+ cprintf(")\r\n");
+}
+
+
+
+/*
+ * imap_fetch() calls imap_do_fetch() to do its actual work, once it's
+ * validated and boiled down the request a bit.
+ */
+void imap_do_fetch(int lo, int hi, int num_items, char **itemlist) {
+ int i;
+ struct CtdlMessage *msg;
+
+ for (i=0; i<num_items; ++i) {
+ lprintf(9, "* item[%d] = <%s>\r\n", i, itemlist[i]);
+ }
+
+ for (i = lo; i <= hi; ++i) {
+ msg = CtdlFetchMessage(IMAP->msgids[i-1]);
+ if (msg != NULL) {
+ imap_do_fetch_msg(i, msg, num_items, itemlist);
+ CtdlFreeMessage(msg);
+ }
+ else {
+ cprintf("* %d FETCH <internal error>\r\n", i);
+ }
+ }
+}
+
+
+
+/*
+ * Back end for imap_handle_macros()
+ * Note that this function *only* looks at the beginning of the string. It
+ * is not a generic search-and-replace function.
+ */
+void imap_macro_replace(char *str, char *find, char *replace) {
+ char holdbuf[1024];
+
+ if (!strncasecmp(str, find, strlen(find))) {
+ if (str[strlen(find)]==' ') {
+ strcpy(holdbuf, &str[strlen(find)+1]);
+ strcpy(str, replace);
+ strcat(str, " ");
+ strcat(str, holdbuf);
+ }
+ if (str[strlen(find)]==0) {
+ strcpy(holdbuf, &str[strlen(find)+1]);
+ strcpy(str, replace);
+ }
+ }
+}
+
+
+
+/*
+ * Handle macros embedded in FETCH data items.
+ * (What the heck are macros doing in a wire protocol? Are we trying to save
+ * the computer at the other end the trouble of typing a lot of characters?)
+ */
+void imap_handle_macros(char *str) {
+ int i;
+ int nest = 0;
+
+ for (i=0; i<strlen(str); ++i) {
+ if (str[i]=='(') ++nest;
+ if (str[i]=='[') ++nest;
+ if (str[i]=='<') ++nest;
+ if (str[i]=='{') ++nest;
+ if (str[i]==')') --nest;
+ if (str[i]==']') --nest;
+ if (str[i]=='>') --nest;
+ if (str[i]=='}') --nest;
+
+ if (nest <= 0) {
+ imap_macro_replace(&str[i],
+ "ALL",
+ "FLAGS INTERNALDATE RFC822.SIZE ENVELOPE"
+ );
+ imap_macro_replace(&str[i],
+ "BODY",
+ "BODYSTRUCTURE"
+ );
+ imap_macro_replace(&str[i],
+ "FAST",
+ "FLAGS INTERNALDATE RFC822.SIZE"
+ );
+ imap_macro_replace(&str[i],
+ "FULL",
+ "FLAGS INTERNALDATE RFC822.SIZE ENVELOPE BODY"
+ );
+ }
+ }
+}
+
+
+/*
+ * Break out the data items requested, possibly a parenthesized list.
+ * Returns the number of data items, or -1 if the list is invalid.
+ * NOTE: this function alters the string it is fed, and uses it as a buffer
+ * to hold the data for the pointers it returns.
+ */
+int imap_extract_data_items(char **argv, char *items) {
+ int num_items = 0;
+ int nest = 0;
+ int i, initial_len;
+ char *start;
+
+ /* Convert all whitespace to ordinary space characters. */
+ for (i=0; i<strlen(items); ++i) {
+ if (isspace(items[i])) items[i]=' ';
+ }
+
+ /* Strip leading and trailing whitespace, then strip leading and
+ * trailing parentheses if it's a list
+ */
+ striplt(items);
+ if ( (items[0]=='(') && (items[strlen(items)-1]==')') ) {
+ items[strlen(items)-1] = 0;
+ strcpy(items, &items[1]);
+ striplt(items);
+ }
+
+ /* Parse any macro data items */
+ imap_handle_macros(items);
+
+ /*
+ * Now break out the data items. We throw in one trailing space in
+ * order to avoid having to break out the last one manually.
+ */
+ strcat(items, " ");
+ start = items;
+ initial_len = strlen(items);
+ for (i=0; i<initial_len; ++i) {
+ if (items[i]=='(') ++nest;
+ if (items[i]=='[') ++nest;
+ if (items[i]=='<') ++nest;
+ if (items[i]=='{') ++nest;
+ if (items[i]==')') --nest;
+ if (items[i]==']') --nest;
+ if (items[i]=='>') --nest;
+ if (items[i]=='}') --nest;
+
+ if (nest <= 0) if (items[i]==' ') {
+ items[i] = 0;
+ argv[num_items++] = start;
+ start = &items[i+1];
+ }
+ }
+
+ return(num_items);
+
+}
int lo = 0;
int hi = 0;
char lostr[1024], histr[1024], items[1024];
+ char *itemlist[256];
+ int num_items;
int i;
if (num_parms < 4) {
if (i < (num_parms-1)) strcat(items, " ");
}
- imap_do_fetch(lo, hi, items);
+ num_items = imap_extract_data_items(itemlist, items);
+ if (num_items < 1) {
+ cprintf("%s BAD invalid data item list\r\n", parms[0]);
+ return;
+ }
+
+ imap_do_fetch(lo, hi, num_items, itemlist);
cprintf("%s OK FETCH completed\r\n", parms[0]);
}
projects / citadel.git / blobdiff