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/* $Cambridge: hermes/src/prayer/cmd/cmd_attachments.c,v 1.4 2008/09/17 17:20:25 dpc22 Exp $ */
/************************************************
* Prayer - a Webmail Interface *
************************************************/
/* Copyright (c) University of Cambridge 2000 - 2008 */
/* See the file NOTICE for conditions of use and distribution. */
#include "prayer_session.h"
static void generate_form(struct session *session)
{
struct template_vals *tvals = session->template_vals;
struct request *request = session->request;
struct draft *draft = session->draft;
struct buffer *b = request->write_buffer;
unsigned long count;
struct attlist *a;
for (count = 0, a = draft->attlist; a; a = a->next, count++) {
template_vals_foreach_init(tvals, "@atts", count);
template_vals_foreach_ulong(tvals, "@atts", count, "offset", count+1);
template_vals_foreach_string(tvals, "@atts", count, "name", a->name);
template_vals_foreach_string(tvals, "@atts", count, "type", a->type);
template_vals_foreach_ulong(tvals, "@atts", count, "size", a->size);
}
session_seed_template(session, tvals);
template_expand("attachments", tvals, b);
response_html(request, 200); /* Success */
}
static void process_form(struct session *session)
{
struct config *config = session->config;
struct request *request = session->request;
struct draft *draft = session->draft;
struct assoc *hdrs = assoc_create(request->pool, 16, T);
char *start, *end;
char *type, *disp, *encoding, *name, *s;
unsigned long len;
if (!request_decode_post_multipart(request, hdrs, &start, &end))
return;
if (end > start)
len = (char *) end - (char *) start;
else
len = 0;
if (len < 1) {
session_alert(session, "Please choose a file to attach");
return;
}
if ((config->draft_att_single_max > 0) &&
(len > config->draft_att_single_max)) {
session_alert(session,
"Attachment too large: %lu bytes exceeds limit %lu",
len, config->draft_att_single_max);
session_log(session,
("[cmd_attachments] Attachment too large: "
"%lu bytes exceeds limit %lu"),
len, config->draft_att_single_max);
return;
}
if ((config->draft_att_total_max > 0) &&
((len + draft_att_size(draft)) > config->draft_att_total_max)) {
session_alert(session,
"Total size of attachments exceeds limit: %lu bytes",
config->draft_att_total_max);
session_log(session,
("[cmd_attachments] Total size of attachments "
"exceeds limit: %lu bytes"),
config->draft_att_total_max);
return;
}
if (!(type = assoc_lookup(hdrs, "content-type")))
type = "application/octet-stream";
/* Opera attaches filename to Content-Type header e.g:
* Content-Type: application/octet-stream; name="<whatever>"
*/
if ((s = strchr(type, ';')))
*s = '\0';
if (!(encoding = assoc_lookup(hdrs, "content-transfer-encoding")))
encoding = "";
name = "";
if ((disp = assoc_lookup(hdrs, "content-disposition"))) {
for (s = disp; *s; s++) {
if (!strncasecmp(s, "filename=\"", strlen("filename=\""))) {
name = s = s + strlen("filename=\"");
while (*s && (*s != '"'))
s++;
*s = '\0';
name = string_trim_whitespace(name);
break;
} else if (!strncasecmp(s, "filename=", strlen("filename="))) {
name = s + strlen("filename=");
name = string_trim_whitespace(name);
break;
}
}
}
/* Isolate last component of name */
if ((s = strrchr(name, '/'))) /* Unix names */
name = s + 1;
else if ((s = strrchr(name, '\\'))) /* Windows names */
name = s + 1;
/* Mac Netscape sends names with URL encoding. Sigh! */
if (name && name[0])
name = string_url_decode(name);
draft_add_attachment(draft, name, type, encoding, NIL, 0, start, len);
session_message(session, "Added attachment \"%s\"", name);
session_log(session,
"[cmd_attachments] Added attachment \"%s\" (%lu bytes)",
name, len);
}
void cmd_attachments(struct session *session)
{
struct request *request = session->request;
if ((request->argc >= 2) && (!strcmp(request->argv[1], "cancel"))) {
session_redirect(session, request, "compose");
return;
}
if (request->method == POST)
process_form(session);
generate_form(session);
}
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