1 /* This file is part of Metaproxy.
2 Copyright (C) 2005-2013 Index Data
4 Metaproxy is free software; you can redistribute it and/or modify it under
5 the terms of the GNU General Public License as published by the Free
6 Software Foundation; either version 2, or (at your option) any later
9 Metaproxy is distributed in the hope that it will be useful, but WITHOUT ANY
10 WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
20 #include <metaproxy/filter.hpp>
21 #include <metaproxy/package.hpp>
22 #include <metaproxy/util.hpp>
23 #include "filter_http_file.hpp"
28 #include <boost/thread/mutex.hpp>
35 #include <sys/types.h>
42 namespace mp = metaproxy_1;
43 namespace yf = mp::filter;
45 namespace metaproxy_1 {
47 struct HttpFile::Area {
48 std::string m_url_path_prefix;
49 std::string m_file_root;
53 class HttpFile::Mime {
57 Mime(std::string type);
61 friend class HttpFile;
63 typedef std::list<Area> AreaList;
64 typedef std::map<std::string,Mime> MimeMap;
68 void fetch_uri(mp::Session &session,
69 Z_HTTP_Request *req, mp::Package &package);
70 void fetch_file(mp::Session &session,
72 std::string &fname, mp::Package &package,
74 std::string get_mime_type(std::string &fname);
79 yf::HttpFile::Area::Area() : m_raw(false)
83 yf::HttpFile::Mime::Mime() {}
85 yf::HttpFile::Mime::Mime(std::string type) : m_type(type) {}
87 yf::HttpFile::HttpFile() : m_p(new Rep)
90 m_p->m_ext_to_map["html"] = Mime("text/html");
91 m_p->m_ext_to_map["htm"] = Mime("text/html");
92 m_p->m_ext_to_map["png"] = Mime("image/png");
93 m_p->m_ext_to_map["txt"] = Mime("text/plain");
94 m_p->m_ext_to_map["text"] = Mime("text/plain");
95 m_p->m_ext_to_map["asc"] = Mime("text/plain");
96 m_p->m_ext_to_map["xml"] = Mime("application/xml");
97 m_p->m_ext_to_map["xsl"] = Mime("application/xml");
101 a.m_url_path_prefix = "/etc";
103 m_p->m_area_list.push_back(a);
107 yf::HttpFile::~HttpFile()
111 std::string yf::HttpFile::Rep::get_mime_type(std::string &fname)
113 std::string file_part = fname;
114 std::string::size_type p = fname.find_last_of('/');
116 if (p != std::string::npos)
117 file_part = fname.substr(p+1);
119 p = file_part.find_last_of('.');
120 std::string content_type;
121 if (p != std::string::npos)
123 std::string ext = file_part.substr(p+1);
124 MimeMap::const_iterator it = m_ext_to_map.find(ext);
126 if (it != m_ext_to_map.end())
127 content_type = it->second.m_type;
129 if (content_type.length() == 0)
130 content_type = "application/octet-stream";
134 void yf::HttpFile::Rep::fetch_file(mp::Session &session,
136 std::string &fname, mp::Package &package,
139 mp::odr o(ODR_ENCODE);
141 FILE *f = fopen(fname.c_str(), "rb");
144 Z_GDU *gdu = o.create_HTTP_Response(session, req, 404);
145 package.response() = gdu;
148 if (fseek(f, 0L, SEEK_END) == -1)
151 Z_GDU *gdu = o.create_HTTP_Response(session, req, 404);
152 package.response() = gdu;
159 Z_GDU *gdu = o.create_HTTP_Response(session, req, 404);
160 package.response() = gdu;
164 char *fbuf = (char*) odr_malloc(o, sz);
167 if (fread(fbuf, sz, 1, f) != 1)
169 Z_GDU *gdu = o.create_HTTP_Response(session, req, 500);
170 package.response() = gdu;
178 mp::odr decode(ODR_DECODE);
181 odr_setbuf(decode, (char *) fbuf, sz, 0);
182 int r = z_GDU(decode, &gdu, 0, 0);
185 gdu = o.create_HTTP_Response(session, req, 500);
190 gdu = o.create_HTTP_Response(session, req, 200);
191 Z_HTTP_Response *hres = gdu->u.HTTP_Response;
192 hres->content_len = sz;
193 hres->content_buf = fbuf;
194 std::string content_type = get_mime_type(fname);
195 z_HTTP_header_add(o, &hres->headers,
196 "Content-Type", content_type.c_str());
198 package.response() = gdu;
201 void yf::HttpFile::Rep::fetch_uri(mp::Session &session,
202 Z_HTTP_Request *req, mp::Package &package)
205 std::string::size_type p;
206 std::string path = req->path;
209 if (p != std::string::npos)
210 path = path.erase(p);
213 if (p != std::string::npos)
214 path = path.erase(p);
216 path = mp::util::uri_decode(path);
220 if (p != std::string::npos)
225 AreaList::const_iterator it;
226 for (it = m_area_list.begin(); it != m_area_list.end(); it++)
228 std::string::size_type l = it->m_url_path_prefix.length();
230 if (path.compare(0, l, it->m_url_path_prefix) == 0)
232 std::string fname = it->m_file_root + path.substr(l);
233 package.log("http_file", YLOG_LOG, "%s", fname.c_str());
234 fetch_file(session, req, fname, package, it->m_raw);
242 void yf::HttpFile::process(mp::Package &package) const
244 Z_GDU *gdu = package.request().get();
245 if (gdu && gdu->which == Z_GDU_HTTP_Request)
246 m_p->fetch_uri(package.session(), gdu->u.HTTP_Request, package);
251 void mp::filter::HttpFile::configure(const xmlNode * ptr, bool test_only,
254 for (ptr = ptr->children; ptr; ptr = ptr->next)
256 if (ptr->type != XML_ELEMENT_NODE)
258 if (!strcmp((const char *) ptr->name, "mimetypes"))
260 std::string fname = mp::xml::get_text(ptr);
266 throw mp::filter::FilterException
267 ("Can not open mime types file " + fname);
270 std::vector<std::string> args;
271 while (f.getline(args))
274 for (i = 1; i<args.size(); i++)
275 m_p->m_ext_to_map[args[i]] = args[0];
278 else if (!strcmp((const char *) ptr->name, "area"))
280 xmlNode *a_node = ptr->children;
283 for (; a_node; a_node = a_node->next)
285 if (a_node->type != XML_ELEMENT_NODE)
288 if (mp::xml::is_element_mp(a_node, "documentroot"))
289 a.m_file_root = mp::xml::get_text(a_node);
290 else if (mp::xml::is_element_mp(a_node, "prefix"))
291 a.m_url_path_prefix = mp::xml::get_text(a_node);
292 else if (mp::xml::is_element_mp(a_node, "raw"))
293 a.m_raw = mp::xml::get_bool(a_node, false);
295 throw mp::filter::FilterException
297 + std::string((const char *) a_node->name)
301 if (a.m_file_root.length())
303 m_p->m_area_list.push_back(a);
308 throw mp::filter::FilterException
310 + std::string((const char *) ptr->name)
311 + " in virt_db filter");
316 static mp::filter::Base* filter_creator()
318 return new mp::filter::HttpFile;
322 struct metaproxy_1_filter_struct metaproxy_1_filter_http_file = {
333 * c-file-style: "Stroustrup"
334 * indent-tabs-mode: nil
336 * vim: shiftwidth=4 tabstop=8 expandtab