Started working on mod_welcome which will replace the built-in file_motd and file_rules configuration options.
This commit is contained in:
Jan Vidar Krey
parent
b24d4b85cd
commit
88dd1341d2
20
GNUmakefile
20
GNUmakefile
@ -155,7 +155,6 @@ libuhub_SOURCES := \
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src/network/connection.c \
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src/network/epoll.c \
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src/network/kqueue.c \
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src/network/network.c \
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src/network/select.c \
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src/network/timeout.c \
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src/network/timer.c
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@ -175,6 +174,7 @@ libutils_SOURCES := \
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src/util/log.c \
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src/util/memory.c \
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src/util/misc.c \
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src/network/network.c \
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src/util/rbtree.c \
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src/util/tiger.c
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@ -213,6 +213,9 @@ autotest_OBJECTS = autotest.o
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plugin_example_SOURCES := src/plugins/mod_example.c
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plugin_example_TARGET := mod_example.so
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plugin_welcome_SOURCES := src/plugins/mod_welcome.c
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plugin_welcome_TARGET := mod_welcome.so
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plugin_logging_SOURCES := src/plugins/mod_logging.c
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plugin_logging_TARGET := mod_logging.so
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@ -237,8 +240,9 @@ uhub-passwd_OBJECTS := $(uhub-passwd_SOURCES:.c=.o)
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adcrush_OBJECTS := $(adcrush_SOURCES:.c=.o)
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admin_OBJECTS := $(admin_SOURCES:.c=.o)
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all_plugins := $(plugin_example_TARGET) $(plugin_logging_TARGET) $(plugin_auth_TARGET) $(plugin_auth_sqlite_TARGET) $(plugin_chat_history_TARGET) $(plugin_welcome_TARGET)
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all_OBJECTS := $(libuhub_OBJECTS) $(uhub_OBJECTS) $(libutils_OBJECTS) $(adcrush_OBJECTS) $(autotest_OBJECTS) $(admin_OBJECTS) $(libadc_common_OBJECTS) $(libadc_client_OBJECTS)
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all_plugins := $(plugin_example_TARGET) $(plugin_logging_TARGET) $(plugin_auth_TARGET) $(plugin_auth_sqlite_TARGET) $(plugin_chat_history_TARGET)
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all_OBJECTS += $(all_plugins)
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uhub_BINARY=uhub$(BIN_EXT)
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uhub-passwd_BINARY=uhub-passwd$(BIN_EXT)
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@ -246,16 +250,17 @@ adcrush_BINARY=adcrush$(BIN_EXT)
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admin_BINARY=uhub-admin$(BIN_EXT)
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autotest_BINARY=autotest/test$(BIN_EXT)
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ifeq ($(USE_PLUGINS),YES)
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all_plugins := $(plugin_example_TARGET) $(plugin_logging_TARGET) $(plugin_auth_TARGET) $(plugin_auth_sqlite_TARGET)
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all_OBJECTS += $(all_plugins)
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endif
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.PHONY: revision.h.tmp all plugins
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%.o: %.c version.h revision.h
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$(MSG_CC) $(CC) -fPIC -c $(CFLAGS) -o $@ $<
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#%.so: %.c
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# $(MSG_CC) $(CC) -shared -fPIC -o $@ $^ $(CFLAGS)
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all: $(uhub_BINARY) $(uhub-passwd_BINARY) plugins
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plugins: $(uhub_BINARY) $(all_plugins)
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@ -275,6 +280,9 @@ $(plugin_logging_TARGET): $(plugin_logging_SOURCES) $(libutils_OBJECTS) $(libadc
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$(plugin_chat_history_TARGET): $(plugin_chat_history_SOURCE) $(libutils_OBJECTS)
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$(MSG_CC) $(CC) -shared -fPIC -o $@ $^ $(CFLAGS)
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$(plugin_welcome_TARGET): $(plugin_welcome_SOURCES) $(libutils_OBJECTS)
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$(MSG_CC) $(CC) -shared -fPIC -o $@ $^ $(CFLAGS)
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$(adcrush_BINARY): $(adcrush_OBJECTS) $(libuhub_OBJECTS) $(libutils_OBJECTS) $(libadc_common_OBJECTS) $(libadc_client_OBJECTS)
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$(MSG_LD) $(CC) -o $@ $^ $(LDFLAGS) $(LDLIBS)
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301
src/plugins/mod_welcome.c
Normal file
301
src/plugins/mod_welcome.c
Normal file
@ -0,0 +1,301 @@
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/*
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* uhub - A tiny ADC p2p connection hub
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* Copyright (C) 2007-2011, Jan Vidar Krey
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include "system.h"
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#include "adc/adcconst.h"
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#include "adc/sid.h"
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#include "util/cbuffer.h"
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#include "util/memory.h"
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#include "util/ipcalc.h"
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#include "plugin_api/handle.h"
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#include "plugin_api/command_api.h"
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#include "util/misc.h"
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#include "util/config_token.h"
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#include <syslog.h>
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#define MAX_WELCOME_SIZE 16384
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struct welcome_data
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{
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char* motd_file;
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char* motd;
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char* rules_file;
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char* rules;
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struct plugin_command_handle* cmd_motd;
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struct plugin_command_handle* cmd_rules;
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};
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static int command_handler_motd(struct plugin_handle* plugin, struct plugin_user* user, struct plugin_command* cmd);
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static int command_handler_rules(struct plugin_handle* plugin, struct plugin_user* user, struct plugin_command* cmd);
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static char* read_file(const char* filename)
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{
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char* str;
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char buf[MAX_WELCOME_SIZE];
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int fd = open(filename, O_RDONLY);
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int ret;
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if (fd == -1)
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return NULL;
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ret = read(fd, buf, MAX_WELCOME_SIZE);
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close(fd);
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buf[ret > 0 ? ret : 0] = 0;
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str = strdup(buf);
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return str;
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}
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int read_motd(struct welcome_data* data)
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{
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data->motd = read_file(data->motd_file);
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return !!data->motd;
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}
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int read_rules(struct welcome_data* data)
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{
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data->rules = read_file(data->rules_file);
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return !!data->rules;
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}
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static void free_welcome_data(struct welcome_data* data)
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{
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hub_free(data->cmd_motd);
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hub_free(data->motd_file);
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hub_free(data->motd);
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hub_free(data->cmd_rules);
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hub_free(data->rules_file);
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hub_free(data->rules);
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hub_free(data);
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}
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static void set_error_message(struct plugin_handle* plugin, const char* msg)
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{
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plugin->error_msg = msg;
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}
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static struct welcome_data* parse_config(const char* line, struct plugin_handle* plugin)
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{
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struct welcome_data* data = (struct welcome_data*) hub_malloc_zero(sizeof(struct welcome_data));
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struct cfg_tokens* tokens = cfg_tokenize(line);
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char* token = cfg_token_get_first(tokens);
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if (!data)
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return 0;
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while (token)
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{
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struct cfg_settings* setting = cfg_settings_split(token);
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if (!setting)
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{
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set_error_message(plugin, "Unable to parse startup parameters");
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cfg_tokens_free(tokens);
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free_welcome_data(data);
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return 0;
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}
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if (strcmp(cfg_settings_get_key(setting), "motd") == 0)
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{
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data->motd_file = strdup(cfg_settings_get_value(setting));
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if (!read_motd(data))
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{
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set_error_message(plugin, "Unable to read motd file.");
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cfg_tokens_free(tokens);
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cfg_settings_free(setting);
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free_welcome_data(data);
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return 0;
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}
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data->cmd_motd = hub_malloc_zero(sizeof(struct plugin_command_handle));
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PLUGIN_COMMAND_INITIALIZE(data->cmd_motd, (void*) data, "msg", "", auth_cred_guest, command_handler_motd, "Show the message of the day.");
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}
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else if (strcmp(cfg_settings_get_key(setting), "rules") == 0)
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{
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data->rules_file = strdup(cfg_settings_get_value(setting));
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if (!read_rules(data))
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{
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set_error_message(plugin, "Unable to read rules file.");
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cfg_tokens_free(tokens);
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cfg_settings_free(setting);
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free_welcome_data(data);
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return 0;
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}
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data->cmd_rules = hub_malloc_zero(sizeof(struct plugin_command_handle));
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PLUGIN_COMMAND_INITIALIZE(data->cmd_rules, (void*) data, "rule", "", auth_cred_guest, command_handler_rules, "Show the hub rules.");
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}
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else
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{
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set_error_message(plugin, "Unknown startup parameters given");
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cfg_tokens_free(tokens);
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cfg_settings_free(setting);
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free_welcome_data(data);
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return 0;
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}
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cfg_settings_free(setting);
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token = cfg_token_get_next(tokens);
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}
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cfg_tokens_free(tokens);
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return data;
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}
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static struct cbuffer* parse_message(struct plugin_user* user, const char* msg)
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{
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struct cbuffer* buf = cbuf_create(strlen(msg));
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const char* start = msg;
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const char* offset = NULL;
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time_t timestamp = time(NULL);
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struct tm* now = localtime(×tamp);
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while ((offset = strchr(start, '%')))
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{
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cbuf_append_bytes(buf, start, (offset - start));
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offset++;
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switch (offset[0])
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{
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case 'n':
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cbuf_append(buf, user->nick);
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break;
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case 'a':
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cbuf_append(buf, ip_convert_to_string(&user->addr));
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break;
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case '%':
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cbuf_append(buf, "%");
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break;
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case 'H':
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cbuf_append_strftime(buf, "%H", now);
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break;
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case 'I':
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cbuf_append_strftime(buf, "%I", now);
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break;
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case 'P':
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cbuf_append_strftime(buf, "%P", now);
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break;
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case 'p':
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cbuf_append_strftime(buf, "%p", now);
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break;
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case 'M':
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cbuf_append_strftime(buf, "%M", now);
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break;
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case 'S':
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cbuf_append_strftime(buf, "%S", now);
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break;
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}
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start = offset + 1;
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}
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if (*start)
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cbuf_append(buf, start);
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return buf;
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}
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static void send_motd(struct plugin_handle* plugin, struct plugin_user* user)
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{
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struct welcome_data* data = (struct welcome_data*) plugin->ptr;
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struct cbuffer* buf = NULL;
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if (data->motd)
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{
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buf = parse_message(user, data->motd);
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plugin->hub.send_message(plugin, user, cbuf_get(buf));
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cbuf_destroy(buf);
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}
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}
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static void send_rules(struct plugin_handle* plugin, struct plugin_user* user)
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{
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struct welcome_data* data = (struct welcome_data*) plugin->ptr;
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struct cbuffer* buf = NULL;
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if (data->rules)
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{
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buf = parse_message(user, data->rules);
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plugin->hub.send_message(plugin, user, cbuf_get(buf));
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cbuf_destroy(buf);
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}
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}
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static void on_user_login(struct plugin_handle* plugin, struct plugin_user* user)
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{
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send_motd(plugin, user);
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}
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static int command_handler_motd(struct plugin_handle* plugin, struct plugin_user* user, struct plugin_command* cmd)
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{
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send_motd(plugin, user);
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return 1;
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}
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static int command_handler_rules(struct plugin_handle* plugin, struct plugin_user* user, struct plugin_command* cmd)
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{
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send_rules(plugin, user);
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return 1;
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}
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int plugin_register(struct plugin_handle* plugin, const char* config)
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{
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struct welcome_data* data;
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PLUGIN_INITIALIZE(plugin, "Welcome plugin", "0.1", "Sends a welcome message to users when they log into the hub.");
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data = parse_config(config, plugin);
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if (!data)
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return -1;
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plugin->ptr = data;
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plugin->funcs.on_user_login = on_user_login;
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if (data->cmd_motd)
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plugin->hub.command_add(plugin, data->cmd_motd);
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if (data->cmd_rules)
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plugin->hub.command_add(plugin, data->cmd_rules);
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return 0;
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}
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int plugin_unregister(struct plugin_handle* plugin)
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{
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struct welcome_data* data = (struct welcome_data*) plugin->ptr;
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if (data->cmd_motd)
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plugin->hub.command_del(plugin, data->cmd_motd);
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if (data->cmd_rules)
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plugin->hub.command_del(plugin, data->cmd_rules);
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free_welcome_data(data);
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return 0;
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}
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