diff options
Diffstat (limited to 'test/interactive-helper/aptwebserver.cc')
| -rw-r--r-- | test/interactive-helper/aptwebserver.cc | 432 |
1 files changed, 257 insertions, 175 deletions
diff --git a/test/interactive-helper/aptwebserver.cc b/test/interactive-helper/aptwebserver.cc index 4dae342dd..b7663a76a 100644 --- a/test/interactive-helper/aptwebserver.cc +++ b/test/interactive-helper/aptwebserver.cc @@ -112,7 +112,7 @@ bool sendHead(int const client, int const httpcode, std::list<std::string> &head date.append(TimeRFC1123(time(NULL))); headers.push_back(date); - std::clog << ">>> RESPONSE >>>" << std::endl; + std::clog << ">>> RESPONSE to " << client << " >>>" << std::endl; bool Success = true; for (std::list<std::string>::const_iterator h = headers.begin(); Success == true && h != headers.end(); ++h) @@ -137,21 +137,21 @@ bool sendFile(int const client, FileFd &data) /*{{{*/ { if (actual == 0) break; - if (Success == true) - Success &= FileFd::Write(client, buffer, actual); + Success &= FileFd::Write(client, buffer, actual); } - if (Success == true) - Success &= FileFd::Write(client, "\r\n", 2); + if (Success == false) + std::cerr << "SENDFILE: READ/WRITE ERROR to " << client << std::endl; return Success; } /*}}}*/ bool sendData(int const client, std::string const &data) /*{{{*/ { - bool Success = true; - Success &= FileFd::Write(client, data.c_str(), data.size()); - if (Success == true) - Success &= FileFd::Write(client, "\r\n", 2); - return Success; + if (FileFd::Write(client, data.c_str(), data.size()) == false) + { + std::cerr << "SENDDATA: WRITE ERROR to " << client << std::endl; + return false; + } + return true; } /*}}}*/ void sendError(int const client, int const httpcode, std::string const &request,/*{{{*/ @@ -198,7 +198,17 @@ void sendRedirect(int const client, int const httpcode, std::string const &uri,/ addDataHeaders(headers, response); std::string location("Location: "); if (strncmp(uri.c_str(), "http://", 7) != 0) - location.append("http://").append(LookupTag(request, "Host")).append("/").append(uri); + { + location.append("http://").append(LookupTag(request, "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); @@ -267,7 +277,7 @@ void sendDirectoryListing(int const client, std::string const &dir, /*{{{*/ << "</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 != ".") + 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; @@ -298,7 +308,7 @@ void sendDirectoryListing(int const client, std::string const &dir, /*{{{*/ } /*}}}*/ bool parseFirstLine(int const client, std::string const &request, /*{{{*/ - std::string &filename, bool &sendContent, + std::string &filename, std::string ¶ms, bool &sendContent, bool &closeConnection) { if (strncmp(request.c_str(), "HEAD ", 5) == 0) @@ -365,6 +375,14 @@ bool parseFirstLine(int const client, std::string const &request, /*{{{*/ 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 … @@ -380,7 +398,32 @@ bool parseFirstLine(int const client, std::string const &request, /*{{{*/ // nuke the first character which is a / as we assured above filename.erase(0, 1); if (filename.empty() == true) - filename = "."; + 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/"; + } + + // if no filename is given, but a valid directory see if we can use an index or + // have to resort to a autogenerated directory listing later on + if (DirectoryExists(filename) == true) + { + std::string const directoryIndex = _config->Find("aptwebserver::directoryindex"); + if (directoryIndex.empty() == false && directoryIndex == flNotDir(directoryIndex) && + RealFileExists(filename + directoryIndex) == true) + filename += directoryIndex; + } + return true; } /*}}}*/ @@ -427,6 +470,173 @@ bool handleOnTheFlyReconfiguration(int const client, std::string const &request, return false; } /*}}}*/ +void * handleClient(void * voidclient) /*{{{*/ +{ + int client = *((int*)(voidclient)); + std::clog << "ACCEPT client " << client << std::endl; + std::vector<std::string> messages; + while (ReadMessages(client, messages)) + { + bool closeConnection = false; + for (std::vector<std::string>::const_iterator m = messages.begin(); + m != messages.end() && closeConnection == false; ++m) { + std::clog << ">>> REQUEST from " << client << " >>>" << std::endl << *m + << std::endl << "<<<<<<<<<<<<<<<<" << std::endl; + std::list<std::string> headers; + std::string filename; + std::string params; + bool sendContent = true; + if (parseFirstLine(client, *m, filename, params, sendContent, closeConnection) == false) + continue; + + // special webserver command request + if (filename.length() > 1 && filename[0] == '_') + { + std::vector<std::string> parts = VectorizeString(filename, '/'); + if (parts[0] == "_config") + { + handleOnTheFlyReconfiguration(client, *m, parts); + continue; + } + } + + // string replacements in the requested filename + ::Configuration::Item const *Replaces = _config->Tree("aptwebserver::redirect::replace"); + if (Replaces != NULL) + { + std::string redirect = "/" + filename; + for (::Configuration::Item *I = Replaces->Child; I != NULL; I = I->Next) + redirect = SubstVar(redirect, I->Tag, I->Value); + redirect.erase(0,1); + if (redirect != filename) + { + sendRedirect(client, 301, redirect, *m, sendContent); + continue; + } + } + + ::Configuration::Item const *Overwrite = _config->Tree("aptwebserver::overwrite"); + if (Overwrite != NULL) + { + for (::Configuration::Item *I = Overwrite->Child; I != NULL; I = I->Next) + { + regex_t *pattern = new regex_t; + int const res = regcomp(pattern, I->Tag.c_str(), REG_EXTENDED | REG_ICASE | REG_NOSUB); + if (res != 0) + { + char error[300]; + regerror(res, pattern, error, sizeof(error)); + sendError(client, 500, *m, sendContent, error); + continue; + } + if (regexec(pattern, filename.c_str(), 0, 0, 0) == 0) + { + filename = _config->Find("aptwebserver::overwrite::" + I->Tag + "::filename", filename); + if (filename[0] == '/') + filename.erase(0,1); + regfree(pattern); + break; + } + regfree(pattern); + } + } + + // deal with the request + if (RealFileExists(filename) == true) + { + FileFd data(filename, FileFd::ReadOnly); + std::string condition = LookupTag(*m, "If-Modified-Since", ""); + if (_config->FindB("aptwebserver::support::modified-since", true) == true && condition.empty() == false) + { + time_t cache; + if (RFC1123StrToTime(condition.c_str(), cache) == true && + cache >= data.ModificationTime()) + { + sendHead(client, 304, headers); + continue; + } + } + + if (_config->FindB("aptwebserver::support::range", true) == true) + condition = LookupTag(*m, "Range", ""); + else + condition.clear(); + if (condition.empty() == false && strncmp(condition.c_str(), "bytes=", 6) == 0) + { + time_t cache; + std::string ifrange; + if (_config->FindB("aptwebserver::support::if-range", true) == true) + ifrange = LookupTag(*m, "If-Range", ""); + bool validrange = (ifrange.empty() == true || + (RFC1123StrToTime(ifrange.c_str(), cache) == true && + cache <= data.ModificationTime())); + + // FIXME: support multiple byte-ranges (APT clients do not do this) + if (condition.find(',') == std::string::npos) + { + size_t start = 6; + unsigned long long filestart = strtoull(condition.c_str() + start, NULL, 10); + // FIXME: no support for last-byte-pos being not the end of the file (APT clients do not do this) + size_t dash = condition.find('-') + 1; + unsigned long long fileend = strtoull(condition.c_str() + dash, NULL, 10); + unsigned long long filesize = data.FileSize(); + if ((fileend == 0 || (fileend == filesize && fileend >= filestart)) && + validrange == true) + { + if (filesize > filestart) + { + data.Skip(filestart); + std::ostringstream contentlength; + contentlength << "Content-Length: " << (filesize - filestart); + headers.push_back(contentlength.str()); + std::ostringstream contentrange; + contentrange << "Content-Range: bytes " << filestart << "-" + << filesize - 1 << "/" << filesize; + headers.push_back(contentrange.str()); + sendHead(client, 206, headers); + if (sendContent == true) + sendFile(client, data); + continue; + } + else + { + headers.push_back("Content-Length: 0"); + std::ostringstream contentrange; + contentrange << "Content-Range: bytes */" << filesize; + headers.push_back(contentrange.str()); + sendHead(client, 416, headers); + continue; + } + } + } + } + + addFileHeaders(headers, data); + sendHead(client, 200, headers); + if (sendContent == true) + sendFile(client, data); + } + else if (DirectoryExists(filename) == true) + { + if (filename[filename.length()-1] == '/') + sendDirectoryListing(client, filename, *m, sendContent); + else + sendRedirect(client, 301, filename.append("/"), *m, sendContent); + } + else + sendError(client, 404, *m, sendContent); + } + _error->DumpErrors(std::cerr); + messages.clear(); + if (closeConnection == true) + break; + } + close(client); + std::clog << "CLOSE client " << client << std::endl; + return NULL; +} + /*}}}*/ + int main(int const argc, const char * argv[]) { CommandLine::Args Args[] = { @@ -447,6 +657,9 @@ int main(int const argc, const char * argv[]) // create socket, bind and listen to it {{{ // ignore SIGPIPE, this can happen on write() if the socket closes connection signal(SIGPIPE, SIG_IGN); + // we don't care for our slaves, so ignore their death + signal(SIGCHLD, SIG_IGN); + int sock = socket(AF_INET6, SOCK_STREAM, 0); if(sock < 0) { @@ -514,178 +727,47 @@ int main(int const argc, const char * argv[]) std::clog << "Serving ANY file on port: " << port << std::endl; - listen(sock, 1); + int const slaves = _config->FindB("aptwebserver::slaves", SOMAXCONN); + listen(sock, slaves); /*}}}*/ _config->CndSet("aptwebserver::response-header::Server", "APT webserver"); _config->CndSet("aptwebserver::response-header::Accept-Ranges", "bytes"); + _config->CndSet("aptwebserver::directoryindex", "index.html"); - std::vector<std::string> messages; - int client; - while ((client = accept(sock, NULL, NULL)) != -1) - { - std::clog << "ACCEPT client " << client - << " on socket " << sock << std::endl; + std::list<int> accepted_clients; - while (ReadMessages(client, messages)) + while (true) + { + int client = accept(sock, NULL, NULL); + if (client == -1) { - bool closeConnection = false; - for (std::vector<std::string>::const_iterator m = messages.begin(); - m != messages.end() && closeConnection == false; ++m) { - std::clog << ">>> REQUEST >>>>" << std::endl << *m - << std::endl << "<<<<<<<<<<<<<<<<" << std::endl; - std::list<std::string> headers; - std::string filename; - bool sendContent = true; - if (parseFirstLine(client, *m, filename, sendContent, closeConnection) == false) - continue; - - // special webserver command request - if (filename.length() > 1 && filename[0] == '_') - { - std::vector<std::string> parts = VectorizeString(filename, '/'); - if (parts[0] == "_config") - { - handleOnTheFlyReconfiguration(client, *m, parts); - continue; - } - } - - // string replacements in the requested filename - ::Configuration::Item const *Replaces = _config->Tree("aptwebserver::redirect::replace"); - if (Replaces != NULL) - { - std::string redirect = "/" + filename; - for (::Configuration::Item *I = Replaces->Child; I != NULL; I = I->Next) - redirect = SubstVar(redirect, I->Tag, I->Value); - redirect.erase(0,1); - if (redirect != filename) - { - sendRedirect(client, 301, redirect, *m, sendContent); - continue; - } - } - - ::Configuration::Item const *Overwrite = _config->Tree("aptwebserver::overwrite"); - if (Overwrite != NULL) - { - for (::Configuration::Item *I = Overwrite->Child; I != NULL; I = I->Next) - { - regex_t *pattern = new regex_t; - int const res = regcomp(pattern, I->Tag.c_str(), REG_EXTENDED | REG_ICASE | REG_NOSUB); - if (res != 0) - { - char error[300]; - regerror(res, pattern, error, sizeof(error)); - sendError(client, 500, *m, sendContent, error); - continue; - } - if (regexec(pattern, filename.c_str(), 0, 0, 0) == 0) - { - filename = _config->Find("aptwebserver::overwrite::" + I->Tag + "::filename", filename); - if (filename[0] == '/') - filename.erase(0,1); - regfree(pattern); - break; - } - regfree(pattern); - } - } - - // deal with the request - if (RealFileExists(filename) == true) - { - FileFd data(filename, FileFd::ReadOnly); - std::string condition = LookupTag(*m, "If-Modified-Since", ""); - if (condition.empty() == false) - { - time_t cache; - if (RFC1123StrToTime(condition.c_str(), cache) == true && - cache >= data.ModificationTime()) - { - sendHead(client, 304, headers); - continue; - } - } - - if (_config->FindB("aptwebserver::support::range", true) == true) - condition = LookupTag(*m, "Range", ""); - else - condition.clear(); - if (condition.empty() == false && strncmp(condition.c_str(), "bytes=", 6) == 0) - { - time_t cache; - std::string ifrange; - if (_config->FindB("aptwebserver::support::if-range", true) == true) - ifrange = LookupTag(*m, "If-Range", ""); - bool validrange = (ifrange.empty() == true || - (RFC1123StrToTime(ifrange.c_str(), cache) == true && - cache <= data.ModificationTime())); - - // FIXME: support multiple byte-ranges (APT clients do not do this) - if (condition.find(',') == std::string::npos) - { - size_t start = 6; - unsigned long long filestart = strtoull(condition.c_str() + start, NULL, 10); - // FIXME: no support for last-byte-pos being not the end of the file (APT clients do not do this) - size_t dash = condition.find('-') + 1; - unsigned long long fileend = strtoull(condition.c_str() + dash, NULL, 10); - unsigned long long filesize = data.FileSize(); - if ((fileend == 0 || (fileend == filesize && fileend >= filestart)) && - validrange == true) - { - if (filesize > filestart) - { - data.Skip(filestart); - std::ostringstream contentlength; - contentlength << "Content-Length: " << (filesize - filestart); - headers.push_back(contentlength.str()); - std::ostringstream contentrange; - contentrange << "Content-Range: bytes " << filestart << "-" - << filesize - 1 << "/" << filesize; - headers.push_back(contentrange.str()); - sendHead(client, 206, headers); - if (sendContent == true) - sendFile(client, data); - continue; - } - else - { - headers.push_back("Content-Length: 0"); - std::ostringstream contentrange; - contentrange << "Content-Range: bytes */" << filesize; - headers.push_back(contentrange.str()); - sendHead(client, 416, headers); - continue; - } - } - } - } + if (errno == EINTR) + continue; + _error->Errno("accept", "Couldn't accept client on socket %d", sock); + _error->DumpErrors(std::cerr); + return 6; + } - addFileHeaders(headers, data); - sendHead(client, 200, headers); - if (sendContent == true) - sendFile(client, data); - } - else if (DirectoryExists(filename) == true) - { - if (filename == "." || filename[filename.length()-1] == '/') - sendDirectoryListing(client, filename, *m, sendContent); - else - sendRedirect(client, 301, filename.append("/"), *m, sendContent); - } - else - sendError(client, 404, *m, sendContent); - } + pthread_attr_t attr; + if (pthread_attr_init(&attr) != 0 || pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED) != 0) + { + _error->Errno("pthread_attr", "Couldn't set detach attribute for a fresh thread to handle client %d on socket %d", client, sock); _error->DumpErrors(std::cerr); - messages.clear(); - if (closeConnection == true) - break; + close(client); + continue; } - std::clog << "CLOSE client " << client - << " on socket " << sock << std::endl; - close(client); + pthread_t tid; + // thats rather dirty, but we need to store the client socket somewhere safe + accepted_clients.push_front(client); + if (pthread_create(&tid, &attr, &handleClient, &(*accepted_clients.begin())) != 0) + { + _error->Errno("pthread_create", "Couldn't create a fresh thread to handle client %d on socket %d", client, sock); + _error->DumpErrors(std::cerr); + close(client); + continue; + } } pidfile.Close(); |