diff options
Diffstat (limited to 'lurker/render/attach.cpp')
| -rw-r--r-- | lurker/render/attach.cpp | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/lurker/render/attach.cpp b/lurker/render/attach.cpp new file mode 100644 index 0000000..334d43b --- /dev/null +++ b/lurker/render/attach.cpp @@ -0,0 +1,179 @@ +/* $Id: attach.cpp 1649 2009-10-19 14:35:01Z terpstra $ + * + * attach.cpp - Handle a attach/ command + * + * Copyright (C) 2002 - Wesley W. Terpstra + * + * License: GPL + * + * Authors: 'Wesley W. Terpstra' <wesley@terpstra.ca> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#define _FILE_OFFSET_BITS 64 + +#include <mimelib/message.h> +#include <mimelib/headers.h> +#include <mimelib/bodypart.h> +#include <mimelib/body.h> +#include <mimelib/enum.h> +#include <mimelib/mediatyp.h> +#include <mimelib/utility.h> + +#include "commands.h" +#include "Summary.h" + +#include <iostream> +#include <cstdlib> + +using std::cout; + +DwEntity& attach_find(DwEntity& e, long& x) +{ + // We are the requested entity. + if (--x == 0) return e; + + // if (e.hasHeaders() && + if (e.Headers().HasContentType()) + { + DwMediaType& t = e.Headers().ContentType(); + switch (t.Type()) + { + case DwMime::kTypeMessage: + if (e.Body().Message()) + return attach_find(*e.Body().Message(), x); + break; + + case DwMime::kTypeMultipart: + for (DwBodyPart* p = e.Body().FirstBodyPart(); p != 0; p = p->Next()) + { + DwEntity& o = attach_find(*p, x); + if (x == 0) return o; + } + break; + } + } + + return e; +} + +string unfold_header(const char* hdr) +{ + string out; + + while (*hdr != 0) + { + if (*hdr == '\r' || *hdr == '\n' || *hdr == '\t') + out += ' '; + else out += *hdr; + ++hdr; + } + + return out; +} + +int handle_attach(const Config& cfg, ESort::Reader* db, const string& param) +{ + string::size_type o = param.find('@'); + long n = atol(param.c_str()); + + if (!cfg.raw_email) + error(_("Permission Denied"), param, + _("Access to mail attachments has been disabled. " + "Contact the site administrator if this is a problem.")); + + if (o == string::npos || n <= 0 || + !MessageId::is_full(param.c_str()+o+1)) + error(_("Bad request"), param, + _("The given parameter was not of the correct format. " + "An attach request must be formatted like: " + "attach/id@YYYYMMDD.HHMMSS.hashcode.xml where id " + "is the number of the attachment.")); + + MessageId id(param.c_str()+o+1); + string ok; + + Summary source(id); + // Identical error if missing or not allowed + if ((ok = source.load(db, cfg)) != "" || !source.allowed()) + { + if (ok == "") ok = "not in a mailbox"; // fake + error(_("Database attach source pull failure"), ok, + _("The specified message does not exist.")); + } + + if (source.deleted()) + error(_("Database attach source pull failure"), "not found", + _("The specified message has been deleted.")); + + DwMessage message; + if ((ok = source.message(cfg.dbdir, message)) != "") + error(_("MBox read failure"), ok, + _("Unable to open message in the mailbox. " + "Perhaps it has been deleted or moved?")); + + DwEntity& e = attach_find(message, n); + + // Cannot cache an attachment because they have strange content-type + + cout << "Status: 200 OK\r\n" + << "Content-Type: "; + + // if (e.hasHeaders() && + if (e.Headers().HasContentType()) + cout << unfold_header( + e.Headers().ContentType().AsString().c_str()); + else cout << "text/plain"; + cout << "\r\n"; + + if (e.Headers().HasContentDisposition()) + cout << "Content-Disposition: " + << unfold_header(e.Headers().ContentDisposition().AsString().c_str()) + << "\r\n"; + + cout << "\r\n"; + + DwString out; + // if (e.hasHeaders() && + if (e.Headers().HasContentTransferEncoding()) + { + switch (e.Headers().ContentTransferEncoding().AsEnum()) + { + case DwMime::kCteQuotedPrintable: + DwDecodeQuotedPrintable(e.Body().AsString(), out); + break; + + case DwMime::kCteBase64: + DwDecodeBase64(e.Body().AsString(), out); + break; + + case DwMime::kCteNull: + case DwMime::kCteUnknown: + case DwMime::kCte7bit: + case DwMime::kCte8bit: + case DwMime::kCteBinary: + out = e.Body().AsString(); + break; + } + + } + else + { + out = e.Body().AsString(); + } + + cout.write(out.c_str(), out.length()); + return 0; +} |