more nntpchan-daemon stuff

contrib/backends/nntpchan-daemon/daemon/ini.hpp

@@ -0,0 +1,186 @@
+/** 
+ * The MIT License (MIT)
+ * Copyright (c) <2015> <carriez.md@gmail.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in 
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+  * 
+  */
+  
+#ifndef INI_HPP
+#define INI_HPP
+
+#include <cassert>
+#include <map>
+#include <list>
+#include <stdexcept>
+#include <string>
+#include <cstring>
+#include <iostream>
+#include <fstream>
+
+namespace INI {
+
+struct Level 
+{
+  Level() : parent(NULL), depth(0) {}
+  Level(Level* p) : parent(p), depth(0) {}
+
+  typedef std::map<std::string, std::string> value_map_t;
+  typedef std::map<std::string, Level> section_map_t;
+  typedef std::list<value_map_t::const_iterator> values_t;
+  typedef std::list<section_map_t::const_iterator> sections_t;
+  value_map_t values;
+  section_map_t sections;
+  values_t ordered_values; // original order in the ini file
+  sections_t ordered_sections;
+  Level* parent;
+  size_t depth;
+
+  const std::string& operator[](const std::string& name) { return values[name]; }
+  Level& operator()(const std::string& name) { return sections[name]; }
+};
+
+class Parser
+{
+public:
+  Parser(const char* fn);
+  Parser(std::istream& f) : f_(&f), ln_(0) { parse(top_); }
+  Level& top() { return top_; }
+  void dump(std::ostream& s) { dump(s, top(), ""); }
+
+private:
+  void dump(std::ostream& s, const Level& l, const std::string& sname);
+  void parse(Level& l);
+  void parseSLine(std::string& sname, size_t& depth);
+  void err(const char* s);
+
+private:
+  Level top_;
+  std::ifstream f0_;
+  std::istream* f_;
+  std::string line_;
+  size_t ln_;
+};
+
+inline void
+Parser::err(const char* s)
+{
+  char buf[256];
+  sprintf(buf, "%s on line #%ld", s, ln_);
+  throw std::runtime_error(buf);
+}
+
+inline std::string trim(const std::string& s)
+{
+  char p[] = " \t\r\n";
+  long sp = 0;
+  long ep = s.length() - 1;
+  for (; sp <= ep; ++sp)
+    if (!strchr(p, s[sp])) break;
+  for (; ep >= 0; --ep)
+    if (!strchr(p, s[ep])) break;
+  return s.substr(sp, ep-sp+1);
+}
+
+inline 
+Parser::Parser(const char* fn) : f0_(fn), f_(&f0_), ln_(0)
+{ 
+  if (!f0_) 
+    throw std::runtime_error(std::string("failed to open file: ") + fn);
+
+  parse(top_); 
+}
+
+inline void 
+Parser::parseSLine(std::string& sname, size_t& depth)
+{
+  depth = 0;
+  for (; depth < line_.length(); ++depth)
+    if (line_[depth] != '[') break;
+
+  sname = line_.substr(depth, line_.length() - 2*depth);
+}
+
+inline void
+Parser::parse(Level& l)
+{
+  while (std::getline(*f_, line_)) {
+    ++ln_;
+    if (line_[0] == '#' || line_[0] == ';') continue;
+    line_ = trim(line_);
+    if (line_.empty()) continue;
+    if (line_[0] == '[') {
+      size_t depth;
+      std::string sname;
+      parseSLine(sname, depth);
+      Level* lp = NULL;
+      Level* parent = &l;
+      if (depth > l.depth + 1)
+        err("section with wrong depth");
+      if (l.depth == depth-1)
+        lp = &l.sections[sname];
+      else {
+        lp = l.parent;
+        size_t n = l.depth - depth;
+        for (size_t i = 0; i < n; ++i) lp = lp->parent;
+        parent = lp;
+        lp = &lp->sections[sname];
+      }
+      if (lp->depth != 0)
+        err("duplicate section name on the same level");
+      if (!lp->parent) {
+        lp->depth = depth;
+        lp->parent = parent;
+      }
+      parent->ordered_sections.push_back(parent->sections.find(sname));
+      parse(*lp);
+    } else {
+      size_t n = line_.find('=');
+      if (n == std::string::npos)
+        err("no '=' found");
+      std::pair<Level::value_map_t::const_iterator, bool> res = 
+        l.values.insert(std::make_pair(trim(line_.substr(0, n)), 
+              trim(line_.substr(n+1, line_.length()-n-1))));
+      if (!res.second)
+        err("duplicated key found");
+      l.ordered_values.push_back(res.first);
+    }
+  }
+}
+
+inline void
+Parser::dump(std::ostream& s, const Level& l, const std::string& sname)
+{
+  if (!sname.empty()) s << '\n';
+  for (size_t i = 0; i < l.depth; ++i) s << '[';
+  if (!sname.empty()) s << sname;
+  for (size_t i = 0; i < l.depth; ++i) s << ']';
+  if (!sname.empty()) s << std::endl;
+  for (Level::values_t::const_iterator it = l.ordered_values.begin(); it != l.ordered_values.end(); ++it)
+    s << (*it)->first << '=' << (*it)->second << std::endl;
+  for (Level::sections_t::const_iterator it = l.ordered_sections.begin(); it != l.ordered_sections.end(); ++it) {
+    assert((*it)->second.depth == l.depth+1);
+    dump(s, (*it)->second, (*it)->first);
+  }
+}
+
+}
+
+#endif // INI_HPP
+

contrib/backends/nntpchan-daemon/daemon/main.cpp

@@ -1,11 +1,11 @@
 #include "ini.hpp"
 
-#include "crypto.hpp"
-#include "storage.hpp"
-#include "nntp_server.hpp"
-#include "event.hpp"
-#include "exec_frontend.hpp"
-#include "staticfile_frontend.hpp"
+#include <nntpchan/crypto.hpp>
+#include <nntpchan/storage.hpp>
+#include <nntpchan/nntp_server.hpp>
+#include <nntpchan/event.hpp>
+#include <nntpchan/exec_frontend.hpp>
+#include <nntpchan/staticfile_frontend.hpp>
 
 #include <vector>
 #include <string>