From e6cd40dc17722bbe6c9d734c3a58b39a18c34174 Mon Sep 17 00:00:00 2001
From: David Kalnischkies <kalnischkies@gmail.com>
Date: Mon, 9 Jul 2012 17:38:40 +0200
Subject: start implementing an extremely simple webserver for testing APT

---
 test/interactive-helper/aptwebserver.cc | 216 ++++++++++++++++++++++++++++++++
 1 file changed, 216 insertions(+)
 create mode 100644 test/interactive-helper/aptwebserver.cc

(limited to 'test/interactive-helper/aptwebserver.cc')

diff --git a/test/interactive-helper/aptwebserver.cc b/test/interactive-helper/aptwebserver.cc
new file mode 100644
index 000000000..7a3624b6e
--- /dev/null
+++ b/test/interactive-helper/aptwebserver.cc
@@ -0,0 +1,216 @@
+#include <apt-pkg/strutl.h>
+#include <apt-pkg/fileutl.h>
+#include <apt-pkg/error.h>
+#include <apt-pkg/cmndline.h>
+
+#include <vector>
+#include <string>
+#include <list>
+#include <sstream>
+
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <netinet/in.h>
+#include <unistd.h>
+#include <errno.h>
+#include <time.h>
+#include <stdlib.h>
+
+char const * const httpcodeToStr(int httpcode) { /*{{{*/
+   switch (httpcode) {
+      // Informational 1xx
+      case 100: return "100 Continue";
+      case 101: return "101 Switching Protocols";
+      // Successful 2xx
+      case 200: return "200 OK";
+      case 201: return "201 Created";
+      case 202: return "202 Accepted";
+      case 203: return "203 Non-Authoritative Information";
+      case 204: return "204 No Content";
+      case 205: return "205 Reset Content";
+      case 206: return "206 Partial Conent";
+      // Redirections 3xx
+      case 300: return "300 Multiple Choices";
+      case 301: return "301 Moved Permanently";
+      case 302: return "302 Found";
+      case 303: return "303 See Other";
+      case 304: return "304 Not Modified";
+      case 305: return "304 Use Proxy";
+      case 307: return "307 Temporary Redirect";
+      // Client errors 4xx
+      case 400: return "400 Bad Request";
+      case 401: return "401 Unauthorized";
+      case 402: return "402 Payment Required";
+      case 403: return "403 Forbidden";
+      case 404: return "404 Not Found";
+      case 405: return "405 Method Not Allowed";
+      case 406: return "406 Not Acceptable";
+      case 407: return "Proxy Authentication Required";
+      case 408: return "Request Time-out";
+      case 409: return "Conflict";
+      case 410: return "Gone";
+      case 411: return "Length Required";
+      case 412: return "Precondition Failed";
+      case 413: return "Request Entity Too Large";
+      case 414: return "Request-URI Too Large";
+      case 415: return "Unsupported Media Type";
+      case 416: return "Requested range not satisfiable";
+      case 417: return "Expectation Failed";
+      // Server error 5xx
+      case 500: return "Internal Server Error";
+      case 501: return "Not Implemented";
+      case 502: return "Bad Gateway";
+      case 503: return "Service Unavailable";
+      case 504: return "Gateway Time-out";
+      case 505: return "HTTP Version not supported";
+   }
+   return NULL;
+} /*}}}*/
+void addFileHeaders(std::list<std::string> &headers, FileFd &data) { /*{{{*/
+   std::ostringstream contentlength;
+   contentlength << "Content-Length: " << data.FileSize();
+   headers.push_back(contentlength.str());
+
+   std::string lastmodified("Last-Modified: ");
+   lastmodified.append(TimeRFC1123(data.ModificationTime()));
+   headers.push_back(lastmodified);
+} /*}}}*/
+bool sendHead(int client, int httpcode, std::list<std::string> &headers) { /*{{{*/
+   string response("HTTP/1.1 ");
+   response.append(httpcodeToStr(httpcode));
+   headers.push_front(response);
+
+   headers.push_back("Server: APT webserver");
+
+   std::string date("Date: ");
+   date.append(TimeRFC1123(time(NULL)));
+   headers.push_back(date);
+
+   std::clog << ">>> RESPONSE >>>" << std::endl;
+   bool Success = true;
+   for (std::list<std::string>::const_iterator h = headers.begin();
+	Success == true && h != headers.end(); ++h) {
+      Success &= FileFd::Write(client, h->c_str(), h->size());
+      Success &= FileFd::Write(client, "\r\n", 2);
+      std::clog << *h << std::endl;
+   }
+   Success &= FileFd::Write(client, "\r\n", 2);
+   std::clog << "<<<<<<<<<<<<<<<<" << std::endl;
+   return Success;
+} /*}}}*/
+bool sendFile(int client, FileFd &data) { /*{{{*/
+   bool Success = true;
+   char buffer[500];
+   unsigned long long actual = 0;
+   while ((Success &= data.Read(buffer, sizeof(buffer), &actual)) == true) {
+      if (actual == 0)
+	 break;
+      Success &= FileFd::Write(client, buffer, actual);
+   }
+   Success &= FileFd::Write(client, "\r\n", 2);
+   return Success;
+} /*}}}*/
+bool sendData(int client, std::string &data) { /*{{{*/
+   bool Success = true;
+   Success &= FileFd::Write(client, data.c_str(), data.size());
+   Success &= FileFd::Write(client, "\r\n", 2);
+   return Success;
+} /*}}}*/
+void sendError(int client, int httpcode, string request, bool content) { /*{{{*/
+   std::list<std::string> headers;
+   sendHead(client, httpcode, headers);
+   if (content == false)
+      return;
+   string response("<html><head><title>");
+   response.append(httpcodeToStr(httpcode)).append("</title></head>");
+   response.append("<body><h1>").append(httpcodeToStr(httpcode)).append("</h1");
+   response.append("This error is a result of the request: <pre>");
+   response.append(request).append("</pre></body></html>");
+   sendData(client, response);
+} /*}}}*/
+
+int main(int argc, const char *argv[])
+{
+   // create socket, bind and listen to it {{{
+   int sock = socket(AF_INET6, SOCK_STREAM, 0);
+   if(sock < 0 ) {
+      _error->Errno("aptwerbserver", "Couldn't create socket");
+      _error->DumpErrors(std::cerr);
+      return 1;
+   }
+
+   // ensure that we accept all connections: v4 or v6
+   int const iponly = 0;
+   setsockopt(sock, IPPROTO_IPV6, IPV6_V6ONLY, &iponly, sizeof(iponly));
+   // to not linger to an address
+   int const enable = 1;
+   setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &enable, sizeof(enable));
+
+   struct sockaddr_in6 locAddr;
+   memset(&locAddr, 0, sizeof(locAddr));
+   locAddr.sin6_family = AF_INET6;
+   locAddr.sin6_port = htons(8080);
+   locAddr.sin6_addr = in6addr_any;
+
+   if (bind(sock, (struct sockaddr*) &locAddr, sizeof(locAddr)) < 0) {
+      _error->Errno("aptwerbserver", "Couldn't bind");
+      _error->DumpErrors(std::cerr);
+      return 2;
+   }
+
+   listen(sock, 1);
+   /*}}}*/
+
+   std::vector<std::string> messages;
+   int client;
+   while ((client = accept(sock, NULL, NULL)) != -1) {
+      std::clog << "ACCEPT client " << client << " on socket " << sock << std::endl;
+
+      while (ReadMessages(client, messages)) {
+	 for (std::vector<std::string>::const_iterator m = messages.begin();
+	      m != messages.end(); ++m) {
+	    std::clog << ">>> REQUEST >>>>" << std::endl << *m << std::endl << "<<<<<<<<<<<<<<<<" << std::endl;
+	    std::list<std::string> headers;
+	    bool sendContent = true;
+	    if (strncmp(m->c_str(), "HEAD ", 5) == 0)
+	       sendContent = false;
+	    if (strncmp(m->c_str(), "GET ", 4) != 0)
+	       sendError(client, 501, *m, true);
+
+	    std::string host = LookupTag(*m, "Host", "");
+	    if (host.empty() == true) {
+	       // RFC 2616 §14.23 Host
+	       sendError(client, 400, *m, sendContent);
+	       continue;
+	    }
+
+	    size_t const filestart = m->find(' ', 5);
+	    string filename = m->substr(5, filestart - 5);
+
+	    if (RealFileExists(filename) == false)
+	       sendError(client, 404, *m, sendContent);
+	    else {
+	       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()) {
+		     sendError(client, 304, *m, false);
+		     continue;
+		  }
+	       }
+	       addFileHeaders(headers, data);
+	       sendHead(client, 200, headers);
+	       if (sendContent == true)
+		  sendFile(client, data);
+	    }
+	 }
+	 _error->DumpErrors(std::cerr);
+	 messages.clear();
+      }
+
+      std::clog << "CLOSE client " << client << " on socket " << sock << std::endl;
+      close(client);
+   }
+   return 0;
+}
-- 
cgit v1.2.3


From 90d1d54ef2a68bd443815f26e9e2b578a1d7c419 Mon Sep 17 00:00:00 2001
From: Michael Vogt <michael.vogt@ubuntu.com>
Date: Tue, 10 Jul 2012 11:35:56 +0200
Subject: add commandline, add configurable port, add --simulate-paywall to
 simulate a broken webserver that intercepts connections and returns nonsese

---
 test/interactive-helper/aptwebserver.cc | 52 ++++++++++++++++++++++++++++-----
 1 file changed, 45 insertions(+), 7 deletions(-)

(limited to 'test/interactive-helper/aptwebserver.cc')

diff --git a/test/interactive-helper/aptwebserver.cc b/test/interactive-helper/aptwebserver.cc
index 7a3624b6e..3c476ad05 100644
--- a/test/interactive-helper/aptwebserver.cc
+++ b/test/interactive-helper/aptwebserver.cc
@@ -2,6 +2,8 @@
 #include <apt-pkg/fileutl.h>
 #include <apt-pkg/error.h>
 #include <apt-pkg/cmndline.h>
+#include <apt-pkg/configuration.h>
+#include <apt-pkg/init.h>
 
 #include <vector>
 #include <string>
@@ -66,6 +68,7 @@ char const * const httpcodeToStr(int httpcode) { /*{{{*/
    }
    return NULL;
 } /*}}}*/
+
 void addFileHeaders(std::list<std::string> &headers, FileFd &data) { /*{{{*/
    std::ostringstream contentlength;
    contentlength << "Content-Length: " << data.FileSize();
@@ -98,6 +101,7 @@ bool sendHead(int client, int httpcode, std::list<std::string> &headers) { /*{{{
    std::clog << "<<<<<<<<<<<<<<<<" << std::endl;
    return Success;
 } /*}}}*/
+
 bool sendFile(int client, FileFd &data) { /*{{{*/
    bool Success = true;
    char buffer[500];
@@ -110,12 +114,14 @@ bool sendFile(int client, FileFd &data) { /*{{{*/
    Success &= FileFd::Write(client, "\r\n", 2);
    return Success;
 } /*}}}*/
+
 bool sendData(int client, std::string &data) { /*{{{*/
    bool Success = true;
    Success &= FileFd::Write(client, data.c_str(), data.size());
    Success &= FileFd::Write(client, "\r\n", 2);
    return Success;
 } /*}}}*/
+
 void sendError(int client, int httpcode, string request, bool content) { /*{{{*/
    std::list<std::string> headers;
    sendHead(client, httpcode, headers);
@@ -131,6 +137,19 @@ void sendError(int client, int httpcode, string request, bool content) { /*{{{*/
 
 int main(int argc, const char *argv[])
 {
+   CommandLine::Args Args[] = {
+      {0, "simulate-paywall", "aptwebserver::Simulate-Paywall", 
+       CommandLine::Boolean},
+      {0, "port", "aptwebserver::port", CommandLine::HasArg},
+      {0,0,0,0}
+   };
+
+   CommandLine CmdL(Args, _config);
+   if(pkgInitConfig(*_config) == false || CmdL.Parse(argc,argv) == false) {
+      _error->DumpErrors();
+      exit(1);
+   }
+
    // create socket, bind and listen to it {{{
    int sock = socket(AF_INET6, SOCK_STREAM, 0);
    if(sock < 0 ) {
@@ -139,6 +158,10 @@ int main(int argc, const char *argv[])
       return 1;
    }
 
+   // get the port
+   int const port = _config->FindI("aptwebserver::port", 8080);
+   bool const simulate_broken_server = _config->FindB("aptwebserver::Simulate-Paywall", false);
+
    // ensure that we accept all connections: v4 or v6
    int const iponly = 0;
    setsockopt(sock, IPPROTO_IPV6, IPV6_V6ONLY, &iponly, sizeof(iponly));
@@ -149,7 +172,7 @@ int main(int argc, const char *argv[])
    struct sockaddr_in6 locAddr;
    memset(&locAddr, 0, sizeof(locAddr));
    locAddr.sin6_family = AF_INET6;
-   locAddr.sin6_port = htons(8080);
+   locAddr.sin6_port = htons(port);
    locAddr.sin6_addr = in6addr_any;
 
    if (bind(sock, (struct sockaddr*) &locAddr, sizeof(locAddr)) < 0) {
@@ -158,18 +181,26 @@ int main(int argc, const char *argv[])
       return 2;
    }
 
+   if (simulate_broken_server) {
+      std::clog << "Simulating a broken web server that return nonsense "
+                   "for all querries" << std::endl;
+   } else {
+      std::clog << "Serving ANY file on port: " << port << std::endl;
+   }
+
    listen(sock, 1);
-   /*}}}*/
 
    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::clog << "ACCEPT client " << client
+                << " on socket " << sock << std::endl;
 
       while (ReadMessages(client, messages)) {
 	 for (std::vector<std::string>::const_iterator m = messages.begin();
 	      m != messages.end(); ++m) {
-	    std::clog << ">>> REQUEST >>>>" << std::endl << *m << std::endl << "<<<<<<<<<<<<<<<<" << std::endl;
+	    std::clog << ">>> REQUEST >>>>" << std::endl << *m 
+                      << std::endl << "<<<<<<<<<<<<<<<<" << std::endl;
 	    std::list<std::string> headers;
 	    bool sendContent = true;
 	    if (strncmp(m->c_str(), "HEAD ", 5) == 0)
@@ -187,14 +218,20 @@ int main(int argc, const char *argv[])
 	    size_t const filestart = m->find(' ', 5);
 	    string filename = m->substr(5, filestart - 5);
 
-	    if (RealFileExists(filename) == false)
+            if (simulate_broken_server == true) {
+               sendHead(client, 200, headers);
+               string data("ni ni ni");
+               sendData(client, data);
+            }
+	    else if (RealFileExists(filename) == false)
 	       sendError(client, 404, *m, sendContent);
 	    else {
 	       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()) {
+		  if (RFC1123StrToTime(condition.c_str(), cache) == true && 
+                      cache >= data.ModificationTime()) {
 		     sendError(client, 304, *m, false);
 		     continue;
 		  }
@@ -209,7 +246,8 @@ int main(int argc, const char *argv[])
 	 messages.clear();
       }
 
-      std::clog << "CLOSE client " << client << " on socket " << sock << std::endl;
+      std::clog << "CLOSE client " << client 
+                << " on socket " << sock << std::endl;
       close(client);
    }
    return 0;
-- 
cgit v1.2.3


From da3ebfe79d570c3aeb5f0a407cfec7996f44420c Mon Sep 17 00:00:00 2001
From: Michael Vogt <michael.vogt@ubuntu.com>
Date: Tue, 10 Jul 2012 12:01:46 +0200
Subject: add failing regression test for bug  #346386

---
 test/interactive-helper/aptwebserver.cc | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

(limited to 'test/interactive-helper/aptwebserver.cc')

diff --git a/test/interactive-helper/aptwebserver.cc b/test/interactive-helper/aptwebserver.cc
index 3c476ad05..c7b815925 100644
--- a/test/interactive-helper/aptwebserver.cc
+++ b/test/interactive-helper/aptwebserver.cc
@@ -244,11 +244,11 @@ int main(int argc, const char *argv[])
 	 }
 	 _error->DumpErrors(std::cerr);
 	 messages.clear();
-      }
 
-      std::clog << "CLOSE client " << client 
-                << " on socket " << sock << std::endl;
-      close(client);
+         std::clog << "CLOSE client " << client 
+                   << " on socket " << sock << std::endl;
+         close(client);
+      }
    }
    return 0;
 }
-- 
cgit v1.2.3


From a38a00b981de3031a51e76c8a2e220b59557c469 Mon Sep 17 00:00:00 2001
From: Michael Vogt <michael.vogt@ubuntu.com>
Date: Tue, 10 Jul 2012 12:26:15 +0200
Subject: always send content-length via the new addDataHeaders() to ensure
 w3m/curl are happy too for 404 pages and to comply with the http 1.1 spec

---
 test/interactive-helper/aptwebserver.cc | 34 +++++++++++++++++++++------------
 1 file changed, 22 insertions(+), 12 deletions(-)

(limited to 'test/interactive-helper/aptwebserver.cc')

diff --git a/test/interactive-helper/aptwebserver.cc b/test/interactive-helper/aptwebserver.cc
index c7b815925..ebe04d2a3 100644
--- a/test/interactive-helper/aptwebserver.cc
+++ b/test/interactive-helper/aptwebserver.cc
@@ -78,6 +78,13 @@ void addFileHeaders(std::list<std::string> &headers, FileFd &data) { /*{{{*/
    lastmodified.append(TimeRFC1123(data.ModificationTime()));
    headers.push_back(lastmodified);
 } /*}}}*/
+
+void addDataHeaders(std::list<std::string> &headers, std::string &data) {/*{{{*/
+   std::ostringstream contentlength;
+   contentlength << "Content-Length: " << data.size();
+   headers.push_back(contentlength.str());
+} /*}}}*/
+
 bool sendHead(int client, int httpcode, std::list<std::string> &headers) { /*{{{*/
    string response("HTTP/1.1 ");
    response.append(httpcodeToStr(httpcode));
@@ -124,14 +131,16 @@ bool sendData(int client, std::string &data) { /*{{{*/
 
 void sendError(int client, int httpcode, string request, bool content) { /*{{{*/
    std::list<std::string> headers;
+   string response;   
+   if (content == true) {
+      response.append("<html><head><title>");
+      response.append(httpcodeToStr(httpcode)).append("</title></head>");
+      response.append("<body><h1>").append(httpcodeToStr(httpcode)).append("</h1");
+      response.append("This error is a result of the request: <pre>");
+      response.append(request).append("</pre></body></html>");
+      addDataHeaders(headers, response);
+   }
    sendHead(client, httpcode, headers);
-   if (content == false)
-      return;
-   string response("<html><head><title>");
-   response.append(httpcodeToStr(httpcode)).append("</title></head>");
-   response.append("<body><h1>").append(httpcodeToStr(httpcode)).append("</h1");
-   response.append("This error is a result of the request: <pre>");
-   response.append(request).append("</pre></body></html>");
    sendData(client, response);
 } /*}}}*/
 
@@ -219,8 +228,9 @@ int main(int argc, const char *argv[])
 	    string filename = m->substr(5, filestart - 5);
 
             if (simulate_broken_server == true) {
+               string data("ni ni ni\n");
+               addDataHeaders(headers, data);
                sendHead(client, 200, headers);
-               string data("ni ni ni");
                sendData(client, data);
             }
 	    else if (RealFileExists(filename) == false)
@@ -244,11 +254,11 @@ int main(int argc, const char *argv[])
 	 }
 	 _error->DumpErrors(std::cerr);
 	 messages.clear();
-
-         std::clog << "CLOSE client " << client 
-                   << " on socket " << sock << std::endl;
-         close(client);
       }
+
+      std::clog << "CLOSE client " << client 
+                << " on socket " << sock << std::endl;
+      close(client);
    }
    return 0;
 }
-- 
cgit v1.2.3


From 3ce22d4f714414d6deb8b044c5b08a8fe7a78967 Mon Sep 17 00:00:00 2001
From: Michael Vogt <michael.vogt@ubuntu.com>
Date: Tue, 10 Jul 2012 13:19:54 +0200
Subject: cleanup, thanks to donkult for his feedback

---
 test/interactive-helper/aptwebserver.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'test/interactive-helper/aptwebserver.cc')

diff --git a/test/interactive-helper/aptwebserver.cc b/test/interactive-helper/aptwebserver.cc
index ebe04d2a3..8fbb9eab9 100644
--- a/test/interactive-helper/aptwebserver.cc
+++ b/test/interactive-helper/aptwebserver.cc
@@ -154,7 +154,7 @@ int main(int argc, const char *argv[])
    };
 
    CommandLine CmdL(Args, _config);
-   if(pkgInitConfig(*_config) == false || CmdL.Parse(argc,argv) == false) {
+   if(CmdL.Parse(argc,argv) == false) {
       _error->DumpErrors();
       exit(1);
    }
-- 
cgit v1.2.3