+ addDataHeaders(headers, response);
+ std::string location("Location: ");
+ if (strncmp(uri.c_str(), "http://", 7) != 0 && strncmp(uri.c_str(), "https://", 8) != 0)
+ {
+ std::string const host = LookupTag(request, "Host");
+ if (host.find(":4433") != std::string::npos)
+ location.append("https://");
+ else
+ location.append("http://");
+ location.append(host).append("/");
+ if (strncmp("/home/", uri.c_str(), strlen("/home/")) == 0 && uri.find("/public_html/") != std::string::npos)
+ {
+ std::string homeuri = SubstVar(uri, "/home/", "~");
+ homeuri = SubstVar(homeuri, "/public_html/", "/");
+ location.append(homeuri);
+ }
+ else
+ location.append(uri);
+ }
+ else
+ location.append(uri);
+ headers.push_back(location);
+ sendHead(client, httpcode, headers);
+ if (content == true)
+ sendData(client, response);
+}
+ /*}}}*/
+static int filter_hidden_files(const struct dirent *a) /*{{{*/
+{
+ if (a->d_name[0] == '.')
+ return 0;
+#ifdef _DIRENT_HAVE_D_TYPE
+ // if we have the d_type check that only files and dirs will be included
+ if (a->d_type != DT_UNKNOWN &&
+ a->d_type != DT_REG &&
+ a->d_type != DT_LNK && // this includes links to regular files
+ a->d_type != DT_DIR)
+ return 0;
+#endif
+ return 1;
+}
+static int grouped_alpha_case_sort(const struct dirent **a, const struct dirent **b) {
+#ifdef _DIRENT_HAVE_D_TYPE
+ if ((*a)->d_type == DT_DIR && (*b)->d_type == DT_DIR);
+ else if ((*a)->d_type == DT_DIR && (*b)->d_type == DT_REG)
+ return -1;
+ else if ((*b)->d_type == DT_DIR && (*a)->d_type == DT_REG)
+ return 1;
+ else
+#endif
+ {
+ struct stat f_prop; //File's property
+ stat((*a)->d_name, &f_prop);
+ int const amode = f_prop.st_mode;
+ stat((*b)->d_name, &f_prop);
+ int const bmode = f_prop.st_mode;
+ if (S_ISDIR(amode) && S_ISDIR(bmode));
+ else if (S_ISDIR(amode))
+ return -1;
+ else if (S_ISDIR(bmode))
+ return 1;
+ }
+ return strcasecmp((*a)->d_name, (*b)->d_name);
+}
+ /*}}}*/
+static void sendDirectoryListing(int const client, std::string const &dir,/*{{{*/
+ std::string const &request, bool content)
+{
+ std::list<std::string> headers;
+ std::ostringstream listing;
+
+ struct dirent **namelist;
+ int const counter = scandir(dir.c_str(), &namelist, filter_hidden_files, grouped_alpha_case_sort);
+ if (counter == -1)
+ {
+ sendError(client, 500, request, content);
+ return;
+ }
+
+ listing << "<html><head><title>Index of " << dir << "</title>"
+ << "<style type=\"text/css\"><!-- td {padding: 0.02em 0.5em 0.02em 0.5em;}"
+ << "tr:nth-child(even){background-color:#dfdfdf;}"
+ << "h1, td:nth-child(3){text-align:center;}"
+ << "table {margin-left:auto;margin-right:auto;} --></style>"
+ << "</head>" << std::endl
+ << "<body><h1>Index of " << dir << "</h1>" << std::endl
+ << "<table><tr><th>#</th><th>Name</th><th>Size</th><th>Last-Modified</th></tr>" << std::endl;
+ if (dir != "./")
+ listing << "<tr><td>d</td><td><a href=\"..\">Parent Directory</a></td><td>-</td><td>-</td></tr>";
+ for (int i = 0; i < counter; ++i) {
+ struct stat fs;
+ std::string filename(dir);
+ filename.append("/").append(namelist[i]->d_name);
+ stat(filename.c_str(), &fs);
+ if (S_ISDIR(fs.st_mode))
+ {
+ listing << "<tr><td>d</td>"
+ << "<td><a href=\"" << namelist[i]->d_name << "/\">" << namelist[i]->d_name << "</a></td>"
+ << "<td>-</td>";
+ }
+ else
+ {
+ listing << "<tr><td>f</td>"
+ << "<td><a href=\"" << namelist[i]->d_name << "\">" << namelist[i]->d_name << "</a></td>"
+ << "<td>" << SizeToStr(fs.st_size) << "B</td>";
+ }
+ listing << "<td>" << TimeRFC1123(fs.st_mtime) << "</td></tr>" << std::endl;
+ }
+ listing << "</table></body></html>" << std::endl;
+
+ std::string response(listing.str());
+ addDataHeaders(headers, response);
+ sendHead(client, 200, headers);
+ if (content == true)
+ sendData(client, response);
+}
+ /*}}}*/
+static bool parseFirstLine(int const client, std::string const &request,/*{{{*/
+ std::string &filename, std::string ¶ms, bool &sendContent,
+ bool &closeConnection)
+{
+ if (strncmp(request.c_str(), "HEAD ", 5) == 0)
+ sendContent = false;
+ if (strncmp(request.c_str(), "GET ", 4) != 0)
+ {
+ sendError(client, 501, request, true);
+ return false;
+ }
+
+ size_t const lineend = request.find('\n');
+ size_t filestart = request.find(' ');
+ for (; request[filestart] == ' '; ++filestart);
+ size_t fileend = request.rfind(' ', lineend);
+ if (lineend == std::string::npos || filestart == std::string::npos ||
+ fileend == std::string::npos || filestart == fileend)
+ {
+ sendError(client, 500, request, sendContent, "Filename can't be extracted");
+ return false;
+ }
+
+ size_t httpstart = fileend;
+ for (; request[httpstart] == ' '; ++httpstart);
+ if (strncmp(request.c_str() + httpstart, "HTTP/1.1\r", 9) == 0)
+ closeConnection = strcasecmp(LookupTag(request, "Connection", "Keep-Alive").c_str(), "Keep-Alive") != 0;
+ else if (strncmp(request.c_str() + httpstart, "HTTP/1.0\r", 9) == 0)
+ closeConnection = strcasecmp(LookupTag(request, "Connection", "Keep-Alive").c_str(), "close") == 0;
+ else
+ {
+ sendError(client, 500, request, sendContent, "Not a HTTP/1.{0,1} request");
+ return false;
+ }
+
+ filename = request.substr(filestart, fileend - filestart);
+ if (filename.find(' ') != std::string::npos)
+ {
+ sendError(client, 500, request, sendContent, "Filename contains an unencoded space");
+ return false;
+ }
+
+ std::string host = LookupTag(request, "Host", "");
+ if (host.empty() == true)
+ {
+ // RFC 2616 §14.23 requires Host
+ sendError(client, 400, request, sendContent, "Host header is required");
+ return false;
+ }
+ host = "http://" + host;
+
+ // Proxies require absolute uris, so this is a simple proxy-fake option
+ std::string const absolute = _config->Find("aptwebserver::request::absolute", "uri,path");
+ if (strncmp(host.c_str(), filename.c_str(), host.length()) == 0)
+ {
+ if (absolute.find("uri") == std::string::npos)
+ {
+ sendError(client, 400, request, sendContent, "Request is absoluteURI, but configured to not accept that");
+ return false;
+ }
+ // strip the host from the request to make it an absolute path
+ filename.erase(0, host.length());
+ }
+ else if (absolute.find("path") == std::string::npos)
+ {
+ sendError(client, 400, request, sendContent, "Request is absolutePath, but configured to not accept that");
+ return false;
+ }
+
+ size_t paramspos = filename.find('?');
+ if (paramspos != std::string::npos)
+ {
+ params = filename.substr(paramspos + 1);
+ filename.erase(paramspos);
+ }
+
+ filename = DeQuoteString(filename);
+
+ // this is not a secure server, but at least prevent the obvious …
+ if (filename.empty() == true || filename[0] != '/' ||
+ strncmp(filename.c_str(), "//", 2) == 0 ||
+ filename.find_first_of("\r\n\t\f\v") != std::string::npos ||
+ filename.find("/../") != std::string::npos)
+ {
+ sendError(client, 400, request, sendContent, "Filename contains illegal character (sequence)");
+ return false;
+ }
+
+ // nuke the first character which is a / as we assured above
+ filename.erase(0, 1);
+ if (filename.empty() == true)
+ filename = "./";
+ // support ~user/ uris to refer to /home/user/public_html/ as a kind-of special directory
+ else if (filename[0] == '~')
+ {
+ // /home/user is actually not entirely correct, but good enough for now
+ size_t dashpos = filename.find('/');
+ if (dashpos != std::string::npos)
+ {
+ std::string home = filename.substr(1, filename.find('/') - 1);
+ std::string pubhtml = filename.substr(filename.find('/') + 1);
+ filename = "/home/" + home + "/public_html/" + pubhtml;
+ }
+ else
+ filename = "/home/" + filename.substr(1) + "/public_html/";
+ }
projects / apt.git / blobdiff