libgnunetchat

library for GNUnet Messenger
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commit 14c459bc9b1305cdb1451621492c5da40366f1ee
Author: TheJackiMonster <thejackimonster@gmail.com>
Date:   Sun,  6 Jun 2021 21:38:20 +0200

Started basic architecture

Signed-off-by: TheJackiMonster <thejackimonster@gmail.com>

Diffstat:
A.gitignore | 8++++++++
AAUTHORS | 1+
ALICENSE | 674+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
AMakefile | 66++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
AREADME.md | 4++++
Ainclude/gnunet_chat_lib.h | 515+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Asrc/gnunet_chat_contact.c | 124+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Asrc/gnunet_chat_contact.h | 27+++++++++++++++++++++++++++
Asrc/gnunet_chat_context.c | 146+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Asrc/gnunet_chat_context.h | 33+++++++++++++++++++++++++++++++++
Asrc/gnunet_chat_file.c | 58++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Asrc/gnunet_chat_file.h | 19+++++++++++++++++++
Asrc/gnunet_chat_group.c | 179+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Asrc/gnunet_chat_group.h | 25+++++++++++++++++++++++++
Asrc/gnunet_chat_handle.c | 170+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Asrc/gnunet_chat_handle.h | 33+++++++++++++++++++++++++++++++++
Asrc/gnunet_chat_message.c | 64++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Asrc/gnunet_chat_message.h | 18++++++++++++++++++
18 files changed, 2164 insertions(+), 0 deletions(-)

diff --git a/.gitignore b/.gitignore @@ -0,0 +1,8 @@ +# IDE specific files: +.cproject +.project +.settings/ + +# Binary files: +*.o +*.so diff --git a/AUTHORS b/AUTHORS @@ -0,0 +1 @@ +Tobias Frisch <thejackimonster@gmail.com> diff --git a/LICENSE b/LICENSE @@ -0,0 +1,674 @@ + GNU GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/> + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU General Public License is a free, copyleft license for +software and other kinds of works. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. By contrast, +the GNU General Public License is intended to guarantee your freedom to +share and change all versions of a program--to make sure it remains free +software for all its users. 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It is safest +to attach them to the start of each source file to most effectively +state the exclusion of warranty; and each file should have at least +the "copyright" line and a pointer to where the full notice is found. + + libgnunet-chat + Copyright (C) 2021 gnunet-messenger + + This program 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, either version 3 of the License, or + (at your option) any later version. + + 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 <https://www.gnu.org/licenses/>. + +Also add information on how to contact you by electronic and paper mail. + + If the program does terminal interaction, make it output a short +notice like this when it starts in an interactive mode: + + <program> Copyright (C) 2021 gnunet-messenger + This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, your program's commands +might be different; for a GUI interface, you would use an "about box". + + You should also get your employer (if you work as a programmer) or school, +if any, to sign a "copyright disclaimer" for the program, if necessary. +For more information on this, and how to apply and follow the GNU GPL, see +<https://www.gnu.org/licenses/>. + + The GNU General Public License does not permit incorporating your program +into proprietary programs. If your program is a subroutine library, you +may consider it more useful to permit linking proprietary applications with +the library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. But first, please read +<https://www.gnu.org/licenses/why-not-lgpl.html>. diff --git a/Makefile b/Makefile @@ -0,0 +1,65 @@ + +SOURCE_DIR = src/ +INCLUDE_DIR = include/ +INSTALL_DIR = /usr/local/ + +LIBRARY = libgnunetchat.so +SOURCES = gnunet_chat_handle.c\ + gnunet_chat_contact.c\ + gnunet_chat_group.c\ + gnunet_chat_context.c\ + gnunet_chat_message.c +HEADERS = gnunet_chat_lib.h + +LIBRARIES = gnunetarm\ + gnunetfs\ + gnunetmessenger\ + gnunetregex\ + gnunetutil + +CC = gcc +LD = gcc +RM = rm + +CFLAGS = -fPIC -pedantic -Wall -Wextra -march=native -ggdb3 +LDFLAGS = -shared + +DEBUGFLAGS = -O0 -D _DEBUG +RELEASEFLAGS = -O2 -D NDEBUG + +SOURCE_FILES = $(addprefix $(SOURCE_DIR), $(SOURCES)) +OBJECT_FILES = $(SOURCE_FILES:%.c=%.o) +HEADER_FILES = $(addprefix $(INCLUDE_DIR), $(HEADERS)) +LIBRARY_FLAGS = $(addprefix -l, $(LIBRARIES)) + +all: $(LIBRARY) + +debug: CFLAGS += $(DEBUGFLAGS) +debug: $(LIBRARY) + +release: CFLAGS += $(RELEASEFLAGS) +release: $(LIBRARY) + +%.o: %.c + $(CC) $(CFLAGS) -c $< -o $@ -I $(INCLUDE_DIR) $(LIBRARY_FLAGS) + +$(LIBRARY): $(OBJECT_FILES) + $(LD) $(LDFLAGS) $^ -o $@ $(LIBRARY_FLAGS) + +.PHONY: install + +install: + install -m 755 $(LIBRARY) $(addprefix $(INSTALL_DIR), lib/) + install -m 644 $(HEADER_FILES) $(addprefix $(INSTALL_DIR), include/gnunet/) + +.PHONY: uninstall + +uninstall: + $(RM) -f $(addsuffix $(HEADERS), $(addprefix $(INSTALL_DIR), include/gnunet/)) + $(RM) -f $(addsuffix $(LIBRARY), $(addprefix $(INSTALL_DIR), lib/)) + +.PHONY: clean + +clean: + $(RM) -f $(LIBRARY) + $(RM) -f $(OBJECT_FILES) +\ No newline at end of file diff --git a/README.md b/README.md @@ -0,0 +1,3 @@ +# libgnunet-chat + +A client-side library for applications to use the Messenger service of GNUnet +\ No newline at end of file diff --git a/include/gnunet_chat_lib.h b/include/gnunet_chat_lib.h @@ -0,0 +1,515 @@ +/* + The development of this code was supported by the NLnet foundation as part + of the NGI Assure initative to have a more free and secure internet. + */ +/* + * @author Tobias Frisch + * @file gnunet_chat_lib.h + */ + +#ifndef GNUNET_CHAT_LIB_H_ +#define GNUNET_CHAT_LIB_H_ + +#include <gnunet/platform.h> +#include <gnunet/gnunet_util_lib.h> + +/** + * TODO + */ +enum GNUNET_CHAT_MessageKind +{ + /** + * TODO + */ + GNUNET_CHAT_KIND_TEXT = 1, /**< GNUNET_CHAT_KIND_TEXT */ + + /** + * TODO + */ + GNUNET_CHAT_KIND_FILE = 2, /**< GNUNET_CHAT_KIND_FILE */ + + /** + * TODO + */ + GNUNET_CHAT_KIND_UNKNOWN = 0/**< GNUNET_CHAT_KIND_UNKNOWN */ +}; + +/** + * TODO + */ +struct GNUNET_CHAT_Handle; + +/** + * TODO + */ +struct GNUNET_CHAT_Contact; + +/** + * TODO + */ +struct GNUNET_CHAT_Group; + +/** + * TODO + */ +struct GNUNET_CHAT_Context; + +/** + * TODO + */ +struct GNUNET_CHAT_Message; + +/** + * TODO + */ +struct GNUNET_CHAT_File; + +/** + * TODO + * + * @param cls + * @param handle + * @param contact + * @return + */ +typedef int +(*GNUNET_CHAT_ContactCallback) (void *cls, struct GNUNET_CHAT_Handle *handle, + const struct GNUNET_CHAT_Contact *contact); + +/** + * TODO + * + * @param cls + * @param handle + * @param group + * @return + */ +typedef int +(*GNUNET_CHAT_GroupCallback) (void *cls, struct GNUNET_CHAT_Handle *handle, + const struct GNUNET_CHAT_Group *group); + +/** + * TODO + * + * @param cls + * @param group + * @param contact + * @return + */ +typedef int +(*GNUNET_CHAT_GroupContactCallback) (void *cls, struct GNUNET_CHAT_Group *group, + const struct GNUNET_CHAT_Contact *contact); + +/** + * TODO + * + * @param cls + * @param context + * @param message + * @return + */ +typedef int +(*GNUNET_CHAT_ContextMessageCallback) (void *cls, struct GNUNET_CHAT_Context *context, + const struct GNUNET_CHAT_Message *message); + +/** + * TODO + * + * @param cls + * @param message + * @param contact + * @param read_receipt + * @return + */ +typedef int +(*GNUNET_CHAT_MessageReadReceiptCallback) (void *cls, const struct GNUNET_CHAT_Message *message, + const struct GNUNET_CHAT_Contact *contact, + int read_receipt); + +typedef void +(*GNUNET_CHAT_MessageFileDownloadCallback) (void *cls, const struct GNUNET_CHAT_File *file); + + +/** + * TODO + * + * @param cfg + * @param name + * @return + */ +struct GNUNET_CHAT_Handle* +GNUNET_CHAT_start (const struct GNUNET_CONFIGURATION_Handle *cfg, + const char *name); + +/** + * TODO + * + * @param handle + */ +void +GNUNET_CHAT_stop (struct GNUNET_CHAT_Handle *handle); + +/** + * TODO + * + * @param handle + * @return + */ +int +GNUNET_CHAT_update (struct GNUNET_CHAT_Handle *handle); + +/** + * TODO + * + * @param handle + * @param name + * @return + */ +int +GNUNET_CHAT_set_name (struct GNUNET_CHAT_Handle *handle, + const char *name); + +/** + * TODO + * + * @param handle + * @return + */ +const char* +GNUNET_CHAT_get_name (const struct GNUNET_CHAT_Handle *handle); + +/** + * TODO + * + * @param handle + * @return + */ +const struct GNUNET_IDENTITY_PublicKey* +GNUNET_CHAT_get_key (const struct GNUNET_CHAT_Handle *handle); + +/** + * TODO + * + * @param handle + * @param callback + * @param cls + * @return + */ +int +GNUNET_CHAT_iterate_contacts (struct GNUNET_CHAT_Handle *handle, + GNUNET_CHAT_ContactCallback callback, + void *cls); + +/** + * TODO + * + * @param handle + * @return + */ +struct GNUNET_CHAT_Group * +GNUNET_CHAT_group_create (struct GNUNET_CHAT_Handle *handle); + +/** + * TODO + * + * @param handle + * @param callback + * @param cls + * @return + */ +int +GNUNET_CHAT_iterate_groups (struct GNUNET_CHAT_Handle *handle, + GNUNET_CHAT_GroupCallback callback, + void *cls); + +/** + * TODO + * + * @param contact + * @return + */ +int +GNUNET_CHAT_contact_delete (struct GNUNET_CHAT_Contact *contact); + +/** + * TODO + * + * @param contact + */ +void +GNUNET_CHAT_contact_set_blocking (struct GNUNET_CHAT_Contact *contact, + int blocking); + +/** + * TODO + * + * @param contact + * @return + */ +int +GNUNET_CHAT_contact_is_blocking (const struct GNUNET_CHAT_Contact *contact); + +/** + * TODO + * + * @param contact Contact + * @param name Custom nick name + */ +void +GNUNET_CHAT_contact_set_name (struct GNUNET_CHAT_Contact *contact, + const char *name); + +/** + * TODO + * + * @param contact Contact + * @return Name or custom nick name + */ +const char* +GNUNET_CHAT_contact_get_name (const struct GNUNET_CHAT_Contact *contact); + +/** + * TODO + * + * @param contact + * @return + */ +const struct GNUNET_IDENTITY_PublicKey* +GNUNET_CHAT_contact_get_key (const struct GNUNET_CHAT_Contact *contact); + +/** + * TODO + * + * @param contact Contact + * @return Chat context + */ +struct GNUNET_CHAT_Context* +GNUNET_CHAT_contact_get_context (struct GNUNET_CHAT_Contact *contact); + +/** + * TODO + * + * @param group + */ +void +GNUNET_CHAT_group_leave (struct GNUNET_CHAT_Group *group); + +/** + * TODO + * + * @param group + * @param name + */ +void +GNUNET_CHAT_group_set_name (struct GNUNET_CHAT_Group *group, + const char *name); + +/** + * TODO + * + * @param group + * @return + */ +const char* +GNUNET_CHAT_group_get_name (const struct GNUNET_CHAT_Group *group); + +/** + * TODO + * + * @param group + * @param contact + */ +void +GNUNET_CHAT_group_invite_contact (struct GNUNET_CHAT_Group *group, + struct GNUNET_CHAT_Contact *contact); + +/** + * TODO + * + * @param group + * @param callback + * @param cls + * @return + */ +int +GNUNET_CHAT_group_iterate_contacts (struct GNUNET_CHAT_Group *group, + GNUNET_CHAT_GroupContactCallback callback, + void *cls); + +/** + * TODO + * + * @param group + * @return + */ +struct GNUNET_CHAT_Context* +GNUNET_CHAT_group_get_context (struct GNUNET_CHAT_Group *group); + +/** + * TODO + * + * @param context + * @param text + */ +void +GNUNET_CHAT_context_send_text (struct GNUNET_CHAT_Context *context, + const char *text); + +/** + * TODO + * + * @param context + * @param path + */ +void +GNUNET_CHAT_context_send_file (struct GNUNET_CHAT_Context *context, + const char *path); + +/** + * TODO + * + * @param context + * @param uri + */ +void +GNUNET_CHAT_context_send_uri (struct GNUNET_CHAT_Context *context, + const char *uri); + +/** + * TODO + * + * @param context + * @param file + */ +void +GNUNET_CHAT_context_share_file (struct GNUNET_CHAT_Context *context, + const struct GNUNET_CHAT_File *file); + +/** + * TODO + * + * @param context + * @param hash + * @param delay + */ +void +GNUNET_CHAT_context_delete_message (struct GNUNET_CHAT_Context *context, + const struct GNUNET_HashCode *hash, + struct GNUNET_TIME_Relative delay); + +/** + * TODO + * + * @param context + * @param hash + * @return + */ +const struct GNUNET_CHAT_Message* +GNUNET_CHAT_context_get_message (struct GNUNET_CHAT_Context *context, + const struct GNUNET_HashCode *hash); + +/** + * TODO + * + * @param context + * @param callback + * @param cls + * @return + */ +int +GNUNET_CHAT_context_iterate_messages (struct GNUNET_CHAT_Context *context, + GNUNET_CHAT_ContextMessageCallback callback, + void *cls); + +/** + * TODO + * + * @param message + * @return + */ +enum GNUNET_CHAT_MessageKind +GNUNET_CHAT_message_get_kind (const struct GNUNET_CHAT_Message *message); + +/** + * TODO + * + * @param message + * @return + */ +struct GNUNET_TIME_Absolute +GNUNET_CHAT_message_get_timestamp (const struct GNUNET_CHAT_Message *message); + +/** + * TODO + * + * @param message + * @return + */ +const struct GNUNET_CHAT_Contact* +GNUNET_CHAT_message_get_sender (const struct GNUNET_CHAT_Message *message); + +/** + * TODO + * + * @param message + * @param callback + * @param cls + * @return + */ +int +GNUNET_CHAT_message_get_read_receipt (const struct GNUNET_CHAT_Message *message, + GNUNET_CHAT_MessageReadReceiptCallback callback, + void *cls); + +/** + * TODO + * + * @param message + * @return + */ +const char* +GNUNET_CHAT_message_get_text (const struct GNUNET_CHAT_Message *message); + + +/** + * TODO + * + * @param message + * @return + */ +struct GNUNET_CHAT_File* +GNUNET_CHAT_message_get_file (const struct GNUNET_CHAT_Message *message); + +/** + * TODO + * + * @param file + */ +void +GNUNET_CHAT_file_start_download (struct GNUNET_CHAT_File *file); + +/** + * TODO + * + * @param file + */ +void +GNUNET_CHAT_file_pause_download (struct GNUNET_CHAT_File *file); + +/** + * TODO + * + * @param file + */ +void +GNUNET_CHAT_file_resume_download (struct GNUNET_CHAT_File *file); + +/** + * TODO + * + * @param file + */ +void +GNUNET_CHAT_file_stop_download (struct GNUNET_CHAT_File *file); + +#endif /* GNUNET_CHAT_LIB_H_ */ diff --git a/src/gnunet_chat_contact.c b/src/gnunet_chat_contact.c @@ -0,0 +1,124 @@ +/* + * @author Tobias Frisch + * @file gnunet_chat_contact.c + */ + +#include "gnunet_chat_lib.h" +#include "gnunet_chat_contact.h" +#include "gnunet_chat_handle.h" + +struct GNUNET_CHAT_Contact* +contact_create (struct GNUNET_CHAT_Handle *handle) +{ + struct GNUNET_CHAT_Contact* contact = GNUNET_new(struct GNUNET_CHAT_Contact); + + contact->handle = handle; + contact->context = context_create(handle, NULL); // TODO: check for existing context? + + contact->contact = NULL; + contact->nick = NULL; + + if (!contact->context) + { + contact_destroy (contact); + return NULL; + } + + const struct GNUNET_HashCode *key = context_get_key(contact->context); + + const int result = GNUNET_CONTAINER_multihashmap_put( + handle->contacts, + key, + contact, + GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST + ); + + if (GNUNET_OK != result) { + contact_destroy (contact); + return NULL; + } + + return contact; +} + +void +contact_destroy (struct GNUNET_CHAT_Contact *contact) +{ + if (!contact->context) + goto skip_context; + + struct GNUNET_CHAT_Handle *handle = contact->handle; + const struct GNUNET_HashCode *key = context_get_key(contact->context); + + GNUNET_CONTAINER_multihashmap_remove( + handle->contacts, + key, + contact + ); + + context_destroy(contact->context); + +skip_context: + if (contact->nick) + GNUNET_free(contact->nick); +} + +int +GNUNET_CHAT_contact_delete (struct GNUNET_CHAT_Contact *contact) +{ + if (!contact) + return GNUNET_SYSERR; + + if (contact->context) + GNUNET_MESSENGER_close_room(contact->context->room); + + contact_destroy(contact); + return GNUNET_OK; +} + +void +GNUNET_CHAT_contact_set_blocking (struct GNUNET_CHAT_Contact *contact, + int blocking) +{ + //TODO +} + +int +GNUNET_CHAT_contact_is_blocking (const struct GNUNET_CHAT_Contact *contact) +{ + return GNUNET_NO; +} + +void +GNUNET_CHAT_contact_set_name (struct GNUNET_CHAT_Contact *contact, + const char *name) +{ + if (!contact) + return; + + if (contact->nick) + GNUNET_free(contact->nick); + + contact->nick = name? GNUNET_strdup(name) : NULL; +} + +const char* +GNUNET_CHAT_contact_get_name (const struct GNUNET_CHAT_Contact *contact) +{ + if (!contact) + return NULL; + + if (contact->nick) + return contact->nick; + + return GNUNET_MESSENGER_contact_get_name(contact->contact); +} + +struct GNUNET_CHAT_Context* +GNUNET_CHAT_contact_get_context (struct GNUNET_CHAT_Contact *contact) +{ + if (!contact) + return NULL; + + return contact->context; +} diff --git a/src/gnunet_chat_contact.h b/src/gnunet_chat_contact.h @@ -0,0 +1,27 @@ +/* + * @author Tobias Frisch + * @file gnunet_chat_contact.h + */ + +#ifndef GNUNET_CHAT_CONTACT_H_ +#define GNUNET_CHAT_CONTACT_H_ + +#include "gnunet_chat_context.h" + +struct GNUNET_CHAT_Contact +{ + struct GNUNET_CHAT_Handle *handle; + struct GNUNET_CHAT_Context *context; + + struct GNUNET_MESSENGER_Contact *contact; + + char *nick; +}; + +struct GNUNET_CHAT_Contact* +contact_create (struct GNUNET_CHAT_Handle *handle); + +void +contact_destroy (struct GNUNET_CHAT_Contact *contact); + +#endif /* GNUNET_CHAT_CONTACT_H_ */ diff --git a/src/gnunet_chat_context.c b/src/gnunet_chat_context.c @@ -0,0 +1,146 @@ +/* + * @author Tobias Frisch + * @file gnunet_chat_context.c + */ + +#include "gnunet_chat_lib.h" +#include "gnunet_chat_context.h" +#include "gnunet_chat_handle.h" + +struct GNUNET_CHAT_Context* +context_create (struct GNUNET_CHAT_Handle *handle, + const struct GNUNET_HashCode *key) +{ + struct GNUNET_MESSENGER_Handle *messenger = handle->handles.messenger; + + struct GNUNET_HashCode _room_key; + const struct GNUNET_HashCode *room_key; + + if (key) + room_key = key; + else + { + GNUNET_CRYPTO_random_block( + GNUNET_CRYPTO_QUALITY_WEAK, + &_room_key, + sizeof(_room_key) + ); + + room_key = &_room_key; + } + + struct GNUNET_MESSENGER_Room *room = GNUNET_MESSENGER_open_room( + messenger, room_key + ); + + if (!room) + return NULL; + + struct GNUNET_CHAT_Context* context = GNUNET_new(struct GNUNET_CHAT_Context); + + context->handle = handle; + context->room = room; + + GNUNET_memcpy(&(context->key), room_key, sizeof(_room_key)); + + return context; +} + +void +context_destroy (struct GNUNET_CHAT_Context* context) +{ + GNUNET_free(context); +} + +const struct GNUNET_HashCode* +context_get_key (struct GNUNET_CHAT_Context* context) +{ + return &(context->key); +} + +void +GNUNET_CHAT_context_send_text (struct GNUNET_CHAT_Context *context, + const char *text) +{ + if (!context) + return; + + struct GNUNET_MESSENGER_Message message; + message.header.kind = GNUNET_MESSENGER_KIND_TEXT; + message.body.text.text = text; + + GNUNET_MESSENGER_send_message(context->room, &message, NULL); +} + +void +GNUNET_CHAT_context_send_file (struct GNUNET_CHAT_Context *context, + const char *path) +{ + //TODO: generate key, hash file, encrypt file, upload file, share uri & info +} + +void +GNUNET_CHAT_context_send_uri (struct GNUNET_CHAT_Context *context, + const char *uri) +{ + if (!context) + return; + + struct GNUNET_MESSENGER_Message message; + message.header.kind = GNUNET_MESSENGER_KIND_FILE; + + memset(&(message.body.file.key), 0, sizeof(message.body.file.key)); + + message.body.file.hash; // TODO: download & hash + GNUNET_memcpy(message.body.file.name, "", 1); // TODO: cut from uri or get from download? + message.body.file.uri = uri; + + GNUNET_MESSENGER_send_message(context->room, &message, NULL); +} + +void +GNUNET_CHAT_context_share_file (struct GNUNET_CHAT_Context *context, + const struct GNUNET_CHAT_File *file) +{ + //TODO: send copied message basically +} + +void +GNUNET_CHAT_context_delete_message (struct GNUNET_CHAT_Context *context, + const struct GNUNET_HashCode *hash, + struct GNUNET_TIME_Relative delay) +{ + if (!context) + return; + + struct GNUNET_MESSENGER_Message message; + message.header.kind = GNUNET_MESSENGER_KIND_TEXT; + GNUNET_memcpy(&(message.body.delete.hash), hash, sizeof(*hash)); + message.body.delete.delay = GNUNET_TIME_relative_hton(delay); + + GNUNET_MESSENGER_send_message(context->room, &message, NULL); +} + +const struct GNUNET_CHAT_Message* +GNUNET_CHAT_context_get_message (struct GNUNET_CHAT_Context *context, + const struct GNUNET_HashCode *hash) +{ + if (!context) + return NULL; + + struct GNUNET_MESSENGER_Message *message = GNUNET_MESSENGER_get_message( + context->room, hash + ); + + //TODO: convert messenger-message to chat-message + + return NULL; +} + +int +GNUNET_CHAT_context_iterate_messages (struct GNUNET_CHAT_Context *context, + GNUNET_CHAT_ContextMessageCallback callback, + void *cls) +{ + return GNUNET_SYSERR; +} diff --git a/src/gnunet_chat_context.h b/src/gnunet_chat_context.h @@ -0,0 +1,33 @@ +/* + * @author Tobias Frisch + * @file gnunet_chat_context.h + */ + +#ifndef GNUNET_CHAT_CONTEXT_H_ +#define GNUNET_CHAT_CONTEXT_H_ + +#include <gnunet/platform.h> +#include <gnunet/gnunet_messenger_service.h> +#include <gnunet/gnunet_util_lib.h> + +struct GNUNET_CHAT_Handle; + +struct GNUNET_CHAT_Context +{ + struct GNUNET_CHAT_Handle *handle; + struct GNUNET_MESSENGER_Room *room; + + struct GNUNET_HashCode key; +}; + +struct GNUNET_CHAT_Context* +context_create (struct GNUNET_CHAT_Handle *handle, + const struct GNUNET_HashCode *key); + +void +context_destroy (struct GNUNET_CHAT_Context* context); + +const struct GNUNET_HashCode* +context_get_key (struct GNUNET_CHAT_Context* context); + +#endif /* GNUNET_CHAT_CONTEXT_H_ */ diff --git a/src/gnunet_chat_file.c b/src/gnunet_chat_file.c @@ -0,0 +1,58 @@ +/* + * @author Tobias Frisch + * @file gnunet_chat_file.c + */ + +#include "gnunet_chat_lib.h" +#include "gnunet_chat_file.h" + +void +GNUNET_CHAT_file_start_download (struct GNUNET_CHAT_File *file) +{ + if (!file) + return; + + struct GNUNET_FS_Handle *handle; + const char *path = ""; // TODO: path = download_directory + filename + + GNUNET_FS_download_start( + handle, + file->uri, + NULL, + path, + NULL, + 0, + 0, + 0, + GNUNET_FS_DOWNLOAD_OPTION_NONE, + NULL, + NULL + ); +} + +void +GNUNET_CHAT_file_pause_download (struct GNUNET_CHAT_File *file) +{ + if (!file) + return; + + GNUNET_FS_download_suspend(file->context); +} + +void +GNUNET_CHAT_file_resume_download (struct GNUNET_CHAT_File *file) +{ + if (!file) + return; + + GNUNET_FS_download_resume(file->context); +} + +void +GNUNET_CHAT_file_stop_download (struct GNUNET_CHAT_File *file) +{ + if (!file) + return; + + GNUNET_FS_download_stop(file, GNUNET_YES); +} diff --git a/src/gnunet_chat_file.h b/src/gnunet_chat_file.h @@ -0,0 +1,19 @@ +/* + * @author Tobias Frisch + * @file gnunet_chat_file.h + */ + +#ifndef GNUNET_CHAT_FILE_H_ +#define GNUNET_CHAT_FILE_H_ + +#include <gnunet/platform.h> +#include <gnunet/gnunet_fs_service.h> +#include <gnunet/gnunet_util_lib.h> + +struct GNUNET_CHAT_File +{ + struct GNUNET_FS_Uri* uri; + struct GNUNET_FS_DownloadContext* context; +}; + +#endif /* GNUNET_CHAT_FILE_H_ */ diff --git a/src/gnunet_chat_group.c b/src/gnunet_chat_group.c @@ -0,0 +1,179 @@ +/* + * @author Tobias Frisch + * @file gnunet_chat_group.c + */ + +#include "gnunet_chat_lib.h" +#include "gnunet_chat_group.h" +#include "gnunet_chat_handle.h" + +struct GNUNET_CHAT_Group* +group_create(struct GNUNET_CHAT_Handle *handle) +{ + struct GNUNET_CHAT_Group *group = GNUNET_new(struct GNUNET_CHAT_Group); + + group->handle = handle; + group->context = context_create(handle, NULL); + group->name = NULL; + + if (!group->context) + { + group_destroy (group); + return NULL; + } + + const struct GNUNET_HashCode *key = context_get_key(group->context); + + const int result = GNUNET_CONTAINER_multihashmap_put( + handle->groups, + key, + group, + GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST + ); + + if (GNUNET_OK != result) { + group_destroy(group); + return NULL; + } + + return group; +} + +void +group_destroy(struct GNUNET_CHAT_Group* group) +{ + if (!group->context) + goto skip_context; + + struct GNUNET_CHAT_Handle *handle = group->handle; + const struct GNUNET_HashCode *key = context_get_key(group->context); + + GNUNET_CONTAINER_multihashmap_remove( + handle->groups, + key, + group + ); + + context_destroy(group->context); + +skip_context: + if (group->name) + GNUNET_free(group->name); + + GNUNET_free(group); +} + +void +GNUNET_CHAT_group_leave (struct GNUNET_CHAT_Group *group) +{ + if (!group) + return; + + if (group->context) + GNUNET_MESSENGER_close_room(group->context->room); + + group_destroy(group); +} + +void +GNUNET_CHAT_group_set_name (struct GNUNET_CHAT_Group *group, + const char *name) +{ + if (!group) + return; + + if (group->name) + GNUNET_free(group->name); + + group->name = name? GNUNET_strdup(name) : NULL; +} + +const char* +GNUNET_CHAT_group_get_name (const struct GNUNET_CHAT_Group *group) +{ + if (!group) + return NULL; + + return group->name; +} + +void +GNUNET_CHAT_group_invite_contact (struct GNUNET_CHAT_Group *group, + struct GNUNET_CHAT_Contact *contact) +{ + if ((!group) || (!contact)) + return; + + struct GNUNET_CHAT_Context *context = GNUNET_CHAT_contact_get_context(contact); + + if (!context) + return; + + struct GNUNET_MESSENGER_Handle *messenger = group->handle->handles.messenger; + GNUNET_MESSENGER_open_room(messenger, context_get_key(group->context)); + + struct GNUNET_MESSENGER_Message message; + message.header.kind = GNUNET_MESSENGER_KIND_INVITE; + + int result = GNUNET_CRYPTO_get_peer_identity( + group->handle->cfg, + &(message.body.invite.door) + ); + + if (GNUNET_OK != result) + return; + + GNUNET_memcpy( + &(message.body.invite.key), + context_get_key(group->context), + sizeof(message.body.invite.key) + ); + + GNUNET_MESSENGER_send_message(context->room, &message, NULL); +} + +struct GNUNET_CHAT_GroupIterateContacts +{ + struct GNUNET_CHAT_Group *group; + GNUNET_CHAT_GroupContactCallback callback; + void *cls; +}; + +static int +group_iterate_members (void* cls, struct GNUNET_MESSENGER_Room *room, + const struct GNUNET_MESSENGER_Contact *contact) +{ + struct GNUNET_CHAT_GroupIterateContacts *iterate = cls; + + return iterate->callback(iterate->cls, iterate->group, NULL); // TODO +} + +int +GNUNET_CHAT_group_iterate_contacts (struct GNUNET_CHAT_Group *group, + GNUNET_CHAT_GroupContactCallback callback, + void *cls) +{ + if (!group) + return GNUNET_SYSERR; + + if (!callback) + return GNUNET_MESSENGER_iterate_members(group->context->room, NULL, cls); + + struct GNUNET_CHAT_GroupIterateContacts iterate; + iterate.group = group; + iterate.callback = callback; + iterate.cls = cls; + + return GNUNET_MESSENGER_iterate_members( + group->context->room, group_iterate_members, &iterate + ); +} + +struct GNUNET_CHAT_Context* +GNUNET_CHAT_group_get_context (struct GNUNET_CHAT_Group *group) +{ + if (!group) + return NULL; + + return group->context; +} diff --git a/src/gnunet_chat_group.h b/src/gnunet_chat_group.h @@ -0,0 +1,25 @@ +/* + * @author Tobias Frisch + * @file gnunet_chat_group.h + */ + +#ifndef GNUNET_CHAT_GROUP_H_ +#define GNUNET_CHAT_GROUP_H_ + +#include "gnunet_chat_context.h" + +struct GNUNET_CHAT_Group +{ + struct GNUNET_CHAT_Handle *handle; + struct GNUNET_CHAT_Context *context; + + char *name; +}; + +struct GNUNET_CHAT_Group* +group_create(struct GNUNET_CHAT_Handle *handle); + +void +group_destroy(struct GNUNET_CHAT_Group* group); + +#endif /* GNUNET_CHAT_GROUP_H_ */ diff --git a/src/gnunet_chat_handle.c b/src/gnunet_chat_handle.c @@ -0,0 +1,170 @@ +/* + * @author Tobias Frisch + * @file gnunet_chat_handle.c + */ + +#include "gnunet_chat_lib.h" +#include "gnunet_chat_handle.h" +#include "gnunet_chat_group.h" + +static void handle_arm_connection(void* cls, int connected) { + struct GNUNET_CHAT_Handle *handle = cls; + + if (GNUNET_YES == connected) { + GNUNET_ARM_request_service_start(handle->handles.arm, "messenger", GNUNET_OS_INHERIT_STD_NONE, NULL, NULL); + GNUNET_ARM_request_service_start(handle->handles.arm, "fs", GNUNET_OS_INHERIT_STD_NONE, NULL, NULL); + } else { + GNUNET_ARM_request_service_start(handle->handles.arm, "arm", GNUNET_OS_INHERIT_STD_NONE, NULL, NULL); + } +} + + +struct GNUNET_CHAT_Handle* +GNUNET_CHAT_start (const struct GNUNET_CONFIGURATION_Handle* cfg, + const char *name) { + if (!cfg) + return NULL; + + struct GNUNET_CHAT_Handle *handle = GNUNET_new(struct GNUNET_CHAT_Handle); + memset(handle, 0, sizeof(*handle)); + handle->cfg = cfg; + + handle->handles.arm = GNUNET_ARM_connect(cfg, &handle_arm_connection, handle); + + if (handle->handles.arm) + handle_arm_connection(handle, GNUNET_NO); + + handle->handles.messenger = GNUNET_MESSENGER_connect( + cfg, name, NULL, NULL, NULL, NULL //TODO + ); + + if (!handle->handles.messenger) + { + GNUNET_CHAT_stop(handle); + return NULL; + } + + handle->handles.fs = GNUNET_FS_start( + cfg, + NULL, //TODO + NULL, + GNUNET_FS_FLAGS_NONE, + GNUNET_FS_OPTIONS_END + ); + + handle->contacts = GNUNET_CONTAINER_multihashmap_create(8, GNUNET_NO); + handle->groups = GNUNET_CONTAINER_multihashmap_create(8, GNUNET_NO); + + return handle; +} + +void +GNUNET_CHAT_stop (struct GNUNET_CHAT_Handle *handle) +{ + if (!handle) + return; + + if (handle->handles.fs) + { + // TODO: stop each action + + GNUNET_FS_stop(handle->handles.fs); + handle->handles.fs = NULL; + } + + if (handle->handles.messenger) + { + // TODO: stop everything related + + GNUNET_MESSENGER_disconnect(handle->handles.messenger); + handle->handles.messenger = NULL; + } + + if (handle->groups) + { + // TODO: destroy each + + GNUNET_CONTAINER_multihashmap_destroy(handle->groups); + handle->groups = NULL; + } + + if (handle->contacts) + { + // TODO: destroy each + + GNUNET_CONTAINER_multihashmap_destroy(handle->contacts); + handle->contacts = NULL; + } + + if (handle->handles.arm) + { + //TODO: stop started services? + + GNUNET_ARM_disconnect(handle->handles.arm); + handle->handles.arm = NULL; + } + + GNUNET_free(handle); +} + +int +GNUNET_CHAT_update (struct GNUNET_CHAT_Handle *handle) +{ + if (!handle) + return GNUNET_SYSERR; + + return GNUNET_MESSENGER_update(handle->handles.messenger); +} + +int +GNUNET_CHAT_set_name (struct GNUNET_CHAT_Handle *handle, + const char *name) +{ + if (!handle) + return GNUNET_SYSERR; + + return GNUNET_MESSENGER_set_name(handle, name); +} + +const char* +GNUNET_CHAT_get_name (const struct GNUNET_CHAT_Handle *handle) +{ + if (!handle) + return GNUNET_SYSERR; + + return GNUNET_MESSENGER_get_name(handle->handles.messenger); +} + +const struct GNUNET_IDENTITY_PublicKey* +GNUNET_CHAT_get_key (const struct GNUNET_CHAT_Handle *handle) +{ + if (!handle) + return GNUNET_SYSERR; + + return GNUNET_MESSENGER_get_key(handle->handles.messenger); +} + +int +GNUNET_CHAT_iterate_contacts (struct GNUNET_CHAT_Handle *handle, + GNUNET_CHAT_ContactCallback callback, + void *cls) +{ + return GNUNET_SYSERR; +} + +struct GNUNET_CHAT_Group* +GNUNET_CHAT_group_create (struct GNUNET_CHAT_Handle *handle) +{ + if (!handle) + return NULL; + + return group_create(handle); +} + +int +GNUNET_CHAT_iterate_groups (struct GNUNET_CHAT_Handle *handle, + GNUNET_CHAT_GroupCallback callback, + void *cls) +{ + return GNUNET_SYSERR; +} diff --git a/src/gnunet_chat_handle.h b/src/gnunet_chat_handle.h @@ -0,0 +1,33 @@ +/* + * @author Tobias Frisch + * @file gnunet_chat_handle.h + */ + +#ifndef GNUNET_CHAT_HANDLE_H_ +#define GNUNET_CHAT_HANDLE_H_ + +#include <gnunet/platform.h> +#include <gnunet/gnunet_config.h> +#include <gnunet/gnunet_container_lib.h> +#include <gnunet/gnunet_arm_service.h> +#include <gnunet/gnunet_fs_service.h> +#include <gnunet/gnunet_identity_service.h> +#include <gnunet/gnunet_messenger_service.h> +#include <gnunet/gnunet_regex_service.h> +#include <gnunet/gnunet_util_lib.h> + +struct GNUNET_CHAT_Handle +{ + const struct GNUNET_CONFIGURATION_Handle* cfg; + + struct { + struct GNUNET_ARM_Handle* arm; + struct GNUNET_FS_Handle* fs; + struct GNUNET_MESSENGER_Handle* messenger; + } handles; + + struct GNUNET_CONTAINER_MultiHashMap *contacts; + struct GNUNET_CONTAINER_MultiHashMap *groups; +}; + +#endif /* GNUNET_CHAT_HANDLE_H_ */ diff --git a/src/gnunet_chat_message.c b/src/gnunet_chat_message.c @@ -0,0 +1,64 @@ +/* + * @author Tobias Frisch + * @file gnunet_chat_message.c + */ + +#include "gnunet_chat_lib.h" +#include "gnunet_chat_message.h" + +enum GNUNET_CHAT_MessageKind +GNUNET_CHAT_message_get_kind (const struct GNUNET_CHAT_Message *message) +{ + if (!message) + return GNUNET_CHAT_KIND_UNKNOWN; + + switch (message->message->header.kind) { + case GNUNET_MESSENGER_KIND_TEXT: + return GNUNET_CHAT_KIND_TEXT; + case GNUNET_MESSENGER_KIND_FILE: + return GNUNET_CHAT_KIND_FILE; + default: + return GNUNET_CHAT_KIND_UNKNOWN; + } +} + +struct GNUNET_TIME_Absolute +GNUNET_CHAT_message_get_timestamp (const struct GNUNET_CHAT_Message *message) +{ + if (!message) + return GNUNET_TIME_absolute_get_zero_(); + + return GNUNET_TIME_absolute_ntoh(message->message->header.timestamp); +} + +const struct GNUNET_CHAT_Contact* +GNUNET_CHAT_message_get_sender (const struct GNUNET_CHAT_Message *message) +{ + return NULL; +} + +int +GNUNET_CHAT_message_get_read_receipt (const struct GNUNET_CHAT_Message *message, + GNUNET_CHAT_MessageReadReceiptCallback callback, + void *cls) +{ + return GNUNET_SYSERR; +} + +const char* +GNUNET_CHAT_message_get_text (const struct GNUNET_CHAT_Message *message) +{ + if (!message) + return NULL; + + if (GNUNET_MESSENGER_KIND_TEXT != message->message->header.kind) + return NULL; + + return message->message->body.text.text; +} + +struct GNUNET_CHAT_File* +GNUNET_CHAT_message_get_file (const struct GNUNET_CHAT_Message *message) +{ + return NULL; +} diff --git a/src/gnunet_chat_message.h b/src/gnunet_chat_message.h @@ -0,0 +1,18 @@ +/* + * @author Tobias Frisch + * @file gnunet_chat_message.h + */ + +#ifndef GNUNET_CHAT_MESSAGE_H_ +#define GNUNET_CHAT_MESSAGE_H_ + +#include <gnunet/platform.h> +#include <gnunet/gnunet_messenger_service.h> +#include <gnunet/gnunet_util_lib.h> + +struct GNUNET_CHAT_Message +{ + struct GNUNET_MESSENGER_Message *message; +}; + +#endif /* GNUNET_CHAT_MESSAGE_H_ */