]> git.netwichtig.de Git - user/henk/code/inspircd.git/blobdiff - src/configparser.cpp
Merge pull request #1162 from SaberUK/insp20+fix-deinstall
[user/henk/code/inspircd.git] / src / configparser.cpp
index 44eb117a84edfa1ff3d16b53feb3ef10612705aa..409ebdd395e67fe38de058edd0e823e73d28d3f2 100644 (file)
@@ -1,16 +1,22 @@
-/*       +------------------------------------+
- *       | Inspire Internet Relay Chat Daemon |
- *       +------------------------------------+
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
  *
- *  InspIRCd: (C) 2002-2009 InspIRCd Development Team
- * See: http://wiki.inspircd.org/Credits
+ *   Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
  *
- * This program is free but copyrighted software; see
- *         the file COPYING for details.
+ * This file is part of InspIRCd.  InspIRCd is free software: you can
+ * redistribute it and/or modify it under the terms of the GNU General Public
+ * License as published by the Free Software Foundation, version 2.
  *
- * ---------------------------------------------------
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+
 #include "inspircd.h"
 #include <fstream>
 #include "configparser.h"
 struct Parser
 {
        ParseStack& stack;
-       const int flags;
+       int flags;
        FILE* const file;
        fpos current;
        fpos last_tag;
        reference<ConfigTag> tag;
        int ungot;
+       std::string mandatory_tag;
 
-       Parser(ParseStack& me, int myflags, FILE* conf, const std::string& name)
-               : stack(me), flags(myflags), file(conf), current(name), last_tag(name), ungot(-1)
+       Parser(ParseStack& me, int myflags, FILE* conf, const std::string& name, const std::string& mandatorytag)
+               : stack(me), flags(myflags), file(conf), current(name), last_tag(name), ungot(-1), mandatory_tag(mandatorytag)
        { }
 
        int next(bool eof_ok = false)
@@ -76,7 +83,7 @@ struct Parser
                int ch = next();
                while (isspace(ch))
                        ch = next();
-               while (isalnum(ch) || ch == '_')
+               while (isalnum(ch) || ch == '_'|| ch == '-')
                {
                        rv.push_back(ch);
                        ch = next();
@@ -84,7 +91,7 @@ struct Parser
                unget(ch);
        }
 
-       bool kv(std::vector<KeyVal>* items)
+       bool kv(std::vector<KeyVal>* items, std::set<std::string>& seen)
        {
                std::string key;
                nextword(key);
@@ -112,7 +119,7 @@ struct Parser
                while (1)
                {
                        ch = next();
-                       if (ch == '&')
+                       if (ch == '&' && (flags & FLAG_USE_XML))
                        {
                                std::string varname;
                                while (1)
@@ -134,10 +141,25 @@ struct Parser
                                        throw CoreException("Undefined XML entity reference '&" + varname + ";'");
                                value.append(var->second);
                        }
+                       else if (ch == '\\' && !(flags & FLAG_USE_XML))
+                       {
+                               int esc = next();
+                               if (esc == 'n')
+                                       value.push_back('\n');
+                               else if (isalpha(esc))
+                                       throw CoreException("Unknown escape character \\" + std::string(1, esc));
+                               else
+                                       value.push_back(esc);
+                       }
                        else if (ch == '"')
                                break;
-                       value.push_back(ch);
+                       else
+                               value.push_back(ch);
                }
+
+               if (!seen.insert(key).second)
+                       throw CoreException("Duplicate key '" + key + "' found");
+
                items->push_back(KeyVal(key, value));
                return true;
        }
@@ -158,22 +180,55 @@ struct Parser
                        throw CoreException("Empty tag name");
 
                std::vector<KeyVal>* items;
+               std::set<std::string> seen;
                tag = ConfigTag::create(name, current.filename, current.line, items);
 
-               while (kv(items));
+               while (kv(items, seen));
+
+               if (name == mandatory_tag)
+               {
+                       // Found the mandatory tag
+                       mandatory_tag.clear();
+               }
 
                if (name == "include")
                {
                        stack.DoInclude(tag, flags);
                }
+               else if (name == "files")
+               {
+                       for(std::vector<KeyVal>::iterator i = items->begin(); i != items->end(); i++)
+                       {
+                               stack.DoReadFile(i->first, i->second, flags, false);
+                       }
+               }
+               else if (name == "execfiles")
+               {
+                       for(std::vector<KeyVal>::iterator i = items->begin(); i != items->end(); i++)
+                       {
+                               stack.DoReadFile(i->first, i->second, flags, true);
+                       }
+               }
                else if (name == "define")
                {
+                       if (!(flags & FLAG_USE_XML))
+                               throw CoreException("<define> tags may only be used in XML-style config (add <config format=\"xml\">)");
                        std::string varname = tag->getString("name");
                        std::string value = tag->getString("value");
                        if (varname.empty())
                                throw CoreException("Variable definition must include variable name");
                        stack.vars[varname] = value;
                }
+               else if (name == "config")
+               {
+                       std::string format = tag->getString("format");
+                       if (format == "xml")
+                               flags |= FLAG_USE_XML;
+                       else if (format == "compat")
+                               flags &= ~FLAG_USE_XML;
+                       else if (!format.empty())
+                               throw CoreException("Unknown configuration format " + format);
+               }
                else
                {
                        stack.output.insert(std::make_pair(name, tag));
@@ -193,6 +248,8 @@ struct Parser
                                {
                                        case EOF:
                                                // this is the one place where an EOF is not an error
+                                               if (!mandatory_tag.empty())
+                                                       throw CoreException("Mandatory tag \"" + mandatory_tag + "\" not found");
                                                return true;
                                        case '#':
                                                comment();
@@ -229,6 +286,10 @@ void ParseStack::DoInclude(ConfigTag* tag, int flags)
 {
        if (flags & FLAG_NO_INC)
                throw CoreException("Invalid <include> tag in file included with noinclude=\"yes\"");
+
+       std::string mandatorytag;
+       tag->readString("mandatorytag", mandatorytag);
+
        std::string name;
        if (tag->readString("file", name))
        {
@@ -236,7 +297,7 @@ void ParseStack::DoInclude(ConfigTag* tag, int flags)
                        flags |= FLAG_NO_INC;
                if (tag->getBool("noexec", false))
                        flags |= FLAG_NO_EXEC;
-               if (!ParseFile(name, flags))
+               if (!ParseFile(name, flags, mandatorytag))
                        throw CoreException("Included");
        }
        else if (tag->readString("executable", name))
@@ -247,12 +308,39 @@ void ParseStack::DoInclude(ConfigTag* tag, int flags)
                        flags |= FLAG_NO_INC;
                if (tag->getBool("noexec", true))
                        flags |= FLAG_NO_EXEC;
-               if (!ParseExec(name, flags))
+               if (!ParseExec(name, flags, mandatorytag))
                        throw CoreException("Included");
        }
 }
 
-bool ParseStack::ParseFile(const std::string& name, int flags)
+void ParseStack::DoReadFile(const std::string& key, const std::string& name, int flags, bool exec)
+{
+       if (flags & FLAG_NO_INC)
+               throw CoreException("Invalid <files> tag in file included with noinclude=\"yes\"");
+       if (exec && (flags & FLAG_NO_EXEC))
+               throw CoreException("Invalid <execfiles> tag in file included with noexec=\"yes\"");
+
+       FileWrapper file(exec ? popen(name.c_str(), "r") : fopen(name.c_str(), "r"), exec);
+       if (!file)
+               throw CoreException("Could not read \"" + name + "\" for \"" + key + "\" file");
+
+       file_cache& cache = FilesOutput[key];
+       cache.clear();
+
+       char linebuf[MAXBUF*10];
+       while (fgets(linebuf, sizeof(linebuf), file))
+       {
+               size_t len = strlen(linebuf);
+               if (len)
+               {
+                       if (linebuf[len-1] == '\n')
+                               len--;
+                       cache.push_back(std::string(linebuf, len));
+               }
+       }
+}
+
+bool ParseStack::ParseFile(const std::string& name, int flags, const std::string& mandatory_tag)
 {
        ServerInstance->Logs->Log("CONFIG", DEBUG, "Reading file %s", name.c_str());
        for (unsigned int t = 0; t < reading.size(); t++)
@@ -270,13 +358,13 @@ bool ParseStack::ParseFile(const std::string& name, int flags)
                throw CoreException("Could not read \"" + name + "\" for include");
 
        reading.push_back(name);
-       Parser p(*this, flags, file, name);
+       Parser p(*this, flags, file, name, mandatory_tag);
        bool ok = p.outer_parse();
        reading.pop_back();
        return ok;
 }
 
-bool ParseStack::ParseExec(const std::string& name, int flags)
+bool ParseStack::ParseExec(const std::string& name, int flags, const std::string& mandatory_tag)
 {
        ServerInstance->Logs->Log("CONFIG", DEBUG, "Reading executable %s", name.c_str());
        for (unsigned int t = 0; t < reading.size(); t++)
@@ -289,19 +377,29 @@ bool ParseStack::ParseExec(const std::string& name, int flags)
 
        /* It's not already included, add it to the list of files we've loaded */
 
-       FileWrapper file(popen(name.c_str(), "r"));
+       FileWrapper file(popen(name.c_str(), "r"), true);
        if (!file)
                throw CoreException("Could not open executable \"" + name + "\" for include");
 
        reading.push_back(name);
-       Parser p(*this, flags, file, name);
+       Parser p(*this, flags, file, name, mandatory_tag);
        bool ok = p.outer_parse();
        reading.pop_back();
        return ok;
 }
 
+#ifdef __clang__
+# pragma clang diagnostic push
+# pragma clang diagnostic ignored "-Wunknown-pragmas"
+# pragma clang diagnostic ignored "-Wundefined-bool-conversion"
+#elif defined __GNUC__
+# pragma GCC diagnostic push
+# pragma GCC diagnostic ignored "-Wpragmas"
+# pragma GCC diagnostic ignored "-Wnonnull-compare"
+#endif
 bool ConfigTag::readString(const std::string& key, std::string& value, bool allow_lf)
 {
+       // TODO: this is undefined behaviour but changing the API is too risky for 2.0.
        if (!this)
                return false;
        for(std::vector<KeyVal>::iterator j = items.begin(); j != items.end(); ++j)
@@ -321,6 +419,11 @@ bool ConfigTag::readString(const std::string& key, std::string& value, bool allo
        }
        return false;
 }
+#ifdef __clang__
+# pragma clang diagnostic pop
+#elif defined __GNUC__
+# pragma GCC diagnostic pop
+#endif
 
 std::string ConfigTag::getString(const std::string& key, const std::string& def)
 {
@@ -369,7 +472,14 @@ bool ConfigTag::getBool(const std::string &key, bool def)
        if(!readString(key, result))
                return def;
 
-       return (result == "yes" || result == "true" || result == "1" || result == "on");
+       if (result == "yes" || result == "true" || result == "1" || result == "on")
+               return true;
+       if (result == "no" || result == "false" || result == "0" || result == "off")
+               return false;
+
+       ServerInstance->Logs->Log("CONFIG",DEFAULT, "Value of <" + tag + ":" + key + "> at " + getTagLocation() +
+               " is not valid, ignoring");
+       return def;
 }
 
 std::string ConfigTag::getTagLocation()
@@ -377,10 +487,10 @@ std::string ConfigTag::getTagLocation()
        return src_name + ":" + ConvToStr(src_line);
 }
 
-ConfigTag* ConfigTag::create(const std::string& Tag, const std::string& file, int line, std::vector<KeyVal>*&items)
+ConfigTag* ConfigTag::create(const std::string& Tag, const std::string& file, int line, std::vector<KeyVal>*& Items)
 {
        ConfigTag* rv = new ConfigTag(Tag, file, line);
-       items = &rv->items;
+       Items = &rv->items;
        return rv;
 }