/*
- * $Id$
- *
* This file contains functions which handle the mapping of Internet addresses
* to users on the Citadel system.
*/
/*
* Unfold a multi-line field into a single line, removing multi-whitespaces
*/
-void unfold_rfc822_field(char *field) {
- int i;
+void unfold_rfc822_field(char **field, char **FieldEnd)
+{
int quote = 0;
+ char *pField = *field;
+ char *sField;
+ char *pFieldEnd = *FieldEnd;
- striplt(field); /* remove leading/trailing whitespace */
+ while (isspace(*pField))
+ pField++;
+ /* remove leading/trailing whitespace */
+ ;
+ while (isspace(*pFieldEnd))
+ pFieldEnd --;
+
+ *FieldEnd = pFieldEnd;
/* convert non-space whitespace to spaces, and remove double blanks */
- for (i=0; i<strlen(field); ++i) {
- if (field[i]=='\"') quote = 1 - quote;
- if (!quote) {
- if (isspace(field[i])) field[i] = ' ';
- while (isspace(field[i]) && isspace(field[i+1])) {
- strcpy(&field[i+1], &field[i+2]);
+ for (sField = *field = pField;
+ sField < pFieldEnd;
+ pField++, sField++)
+ {
+ if ((*sField=='\r') || (*sField=='\n')) {
+ while (isspace(*sField))
+ sField++;
+ *pField = *sField;
+ }
+ else {
+ if (*sField=='\"') quote = 1 - quote;
+ if (!quote) {
+ if (isspace(*sField))
+ {
+ *pField = ' ';
+ pField++;
+ sField++;
+
+ while ((sField < pFieldEnd) &&
+ isspace(*sField))
+ sField++;
+ *pField = *sField;
+ }
+ else *pField = *sField;
}
+ else *pField = *sField;
}
}
+ *pField = '\0';
+ *FieldEnd = pField - 1;
}
* structure, implying that the source field should be removed from the
* message text.
*/
-int convert_field(struct CtdlMessage *msg, int beg, int end) {
- char *rfc822;
- char *key, *value;
+int convert_field(struct CtdlMessage *msg, const char *beg, const char *end) {
+ char *key, *value, *valueend;
+ long len;
+ const char *pos;
int i;
- int colonpos = (-1);
+ const char *colonpos = NULL;
int processed = 0;
char buf[SIZ];
char user[1024];
char name[1024];
char addr[1024];
time_t parsed_date;
+ long valuelen;
- rfc822 = msg->cm_fields['M']; /* M field contains rfc822 text */
- for (i = end; i >= beg; --i) {
- if (rfc822[i] == ':') colonpos = i;
+ for (pos = end; pos >= beg; pos--) {
+ if (*pos == ':') colonpos = pos;
}
- if (colonpos < 0) return(0); /* no colon? not a valid header line */
+ if (colonpos == NULL) return(0); /* no colon? not a valid header line */
- key = malloc((end - beg) + 2);
- safestrncpy(key, &rfc822[beg], (end-beg)+1);
- key[colonpos - beg] = 0;
+ len = end - beg;
+ key = malloc(len + 2);
+ memcpy(key, beg, len + 1);
+ key[len] = '\0';
+ valueend = key + len;
+ * ( key + (colonpos - beg) ) = '\0';
value = &key[(colonpos - beg) + 1];
- unfold_rfc822_field(value);
+/* printf("Header: [%s]\nValue: [%s]\n", key, value); */
+ unfold_rfc822_field(&value, &valueend);
+ valuelen = valueend - value + 1;
+/* printf("UnfoldedValue: [%s]\n", value); */
/*
* Here's the big rfc822-to-citadel loop.
else if (!strcasecmp(key, "Subject")) {
if (msg->cm_fields['U'] == NULL)
- msg->cm_fields['U'] = strdup(value);
+ msg->cm_fields['U'] = strndup(value, valuelen);
processed = 1;
}
else if (!strcasecmp(key, "List-ID")) {
if (msg->cm_fields['L'] == NULL)
- msg->cm_fields['L'] = strdup(value);
+ msg->cm_fields['L'] = strndup(value, valuelen);
processed = 1;
}
else if (!strcasecmp(key, "To")) {
if (msg->cm_fields['R'] == NULL)
- msg->cm_fields['R'] = strdup(value);
+ msg->cm_fields['R'] = strndup(value, valuelen);
processed = 1;
}
else if (!strcasecmp(key, "CC")) {
if (msg->cm_fields['Y'] == NULL)
- msg->cm_fields['Y'] = strdup(value);
+ msg->cm_fields['Y'] = strndup(value, valuelen);
processed = 1;
}
}
if (msg->cm_fields['I'] == NULL) {
- msg->cm_fields['I'] = strdup(value);
+ msg->cm_fields['I'] = strndup(value, valuelen);
/* Strip angle brackets */
while (haschar(msg->cm_fields['I'], '<') > 0) {
else if (!strcasecmp(key, "Return-Path")) {
if (msg->cm_fields['P'] == NULL)
- msg->cm_fields['P'] = strdup(value);
+ msg->cm_fields['P'] = strndup(value, valuelen);
processed = 1;
}
else if (!strcasecmp(key, "Envelope-To")) {
if (msg->cm_fields['V'] == NULL)
- msg->cm_fields['V'] = strdup(value);
+ msg->cm_fields['V'] = strndup(value, valuelen);
processed = 1;
}
if (msg->cm_fields['W'] != NULL) {
free(msg->cm_fields['W']);
}
- msg->cm_fields['W'] = strdup(value);
+ msg->cm_fields['W'] = strndup(value, valuelen);
processed = 1;
}
else if (!strcasecmp(key, "In-reply-to")) {
if (msg->cm_fields['W'] == NULL) { /* References: supersedes In-reply-to: */
- msg->cm_fields['W'] = strdup(value);
+ msg->cm_fields['W'] = strndup(value, valuelen);
}
processed = 1;
}
* again.
*/
struct CtdlMessage *convert_internet_message(char *rfc822) {
+ StrBuf *RFCBuf = NewStrBufPlain(rfc822, -1);
+ free (rfc822);
+ return convert_internet_message_buf(&RFCBuf);
+}
+
+
+struct CtdlMessage *convert_internet_message_buf(StrBuf **rfc822)
+{
struct CtdlMessage *msg;
- int pos, beg, end, msglen;
- int done;
+ const char *pos, *beg, *end, *totalend;
+ int done, alldone = 0;
char buf[SIZ];
int converted;
+ StrBuf *OtherHeaders;
msg = malloc(sizeof(struct CtdlMessage));
if (msg == NULL) return msg;
msg->cm_magic = CTDLMESSAGE_MAGIC; /* self check */
msg->cm_anon_type = 0; /* never anonymous */
msg->cm_format_type = FMT_RFC822; /* internet message */
- msg->cm_fields['M'] = rfc822;
- pos = 0;
+ pos = ChrPtr(*rfc822);
+ totalend = pos + StrLength(*rfc822);
done = 0;
+ OtherHeaders = NewStrBufPlain(NULL, StrLength(*rfc822));
- while (!done) {
+ while (!alldone) {
/* Locate beginning and end of field, keeping in mind that
* some fields might be multiline
*/
- beg = pos;
- end = (-1);
+ end = beg = pos;
- msglen = strlen(rfc822);
- while ( (end < 0) && (done == 0) ) {
+ while ((end < totalend) &&
+ (end == beg) &&
+ (done == 0) )
+ {
- if ((rfc822[pos]=='\n')
- && (!isspace(rfc822[pos+1]))) {
+ if ( (*pos=='\n') && ((*(pos+1))!=0x20) && ((*(pos+1))!=0x09) )
+ {
end = pos;
}
/* done with headers? */
- if ( (rfc822[pos]=='\n')
- && ( (rfc822[pos+1]=='\n')
- ||(rfc822[pos+1]=='\r')) ) {
- end = pos;
- done = 1;
+ if ((*pos=='\n') &&
+ ( (*(pos+1)=='\n') ||
+ (*(pos+1)=='\r')) )
+ {
+ alldone = 1;
}
- if (pos >= (msglen-1) ) {
+ if (pos >= (totalend - 1) )
+ {
end = pos;
done = 1;
}
converted = convert_field(msg, beg, end);
/* Strip the field out of the RFC822 header if we used it */
- if (converted) {
- strcpy(&rfc822[beg], &rfc822[pos]);
- pos = beg;
+ if (!converted) {
+ StrBufAppendBufPlain(OtherHeaders, beg, end - beg, 0);
+ StrBufAppendBufPlain(OtherHeaders, HKEY("\n"), 0);
}
/* If we've hit the end of the message, bail out */
- if (pos > strlen(rfc822)) done = 1;
+ if (pos >= totalend)
+ alldone = 1;
}
+ StrBufAppendBufPlain(OtherHeaders, HKEY("\n"), 0);
+ if (pos < totalend)
+ StrBufAppendBufPlain(OtherHeaders, pos, totalend - pos, 0);
+ FreeStrBuf(rfc822);
+ msg->cm_fields['M'] = SmashStrBuf(&OtherHeaders);
/* Follow-up sanity checks... */
* The caller is responsible for freeing the returned buffer. If the requested
* field is not present, or anything else goes wrong, it returns NULL.
*/
-char *rfc822_fetch_field(char *rfc822, char *fieldname) {
+char *rfc822_fetch_field(const char *rfc822, const char *fieldname) {
char *fieldbuf = NULL;
- char *end_of_headers;
- char *field_start;
- char *ptr;
+ const char *end_of_headers;
+ const char *field_start;
+ const char *ptr;
char *cont;
char fieldhdr[SIZ];
snprintf(fieldhdr, sizeof fieldhdr, "%s:", fieldname);
/* Locate the end of the headers, so we don't run past that point */
- end_of_headers = bmstrcasestr(rfc822, "\n\r\n");
+ end_of_headers = cbmstrcasestr(rfc822, "\n\r\n");
if (end_of_headers == NULL) {
- end_of_headers = bmstrcasestr(rfc822, "\n\n");
+ end_of_headers = cbmstrcasestr(rfc822, "\n\n");
}
if (end_of_headers == NULL) return (NULL);
- field_start = bmstrcasestr(rfc822, fieldhdr);
+ field_start = cbmstrcasestr(rfc822, fieldhdr);
if (field_start == NULL) return(NULL);
if (field_start > end_of_headers) return(NULL);
strcpy(fieldbuf, "");
ptr = field_start;
- ptr = memreadline(ptr, fieldbuf, SIZ-strlen(fieldbuf) );
+ ptr = cmemreadline(ptr, fieldbuf, SIZ-strlen(fieldbuf) );
while ( (isspace(ptr[0])) && (ptr < end_of_headers) ) {
strcat(fieldbuf, " ");
cont = &fieldbuf[strlen(fieldbuf)];
- ptr = memreadline(ptr, cont, SIZ-strlen(fieldbuf) );
+ ptr = cmemreadline(ptr, cont, SIZ-strlen(fieldbuf) );
striplt(cont);
}
projects / citadel.git / blobdiff