Initial commit

.gitignore

@@ -0,0 +1,15 @@
+# xcode noise
+*.pbxuser
+*.perspectivev3
+*.mode1v3
+*.xcuserdatad
+*.xccheckout
+
+
+# osx noise
+.DS_Store
+profile
+
+
+bin
+*.pyc

LICENSE

@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2016 pomfort
+Copyright (c) 2016 Pomfort GmbH
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

README.md

@@ -0,0 +1,67 @@
+#mhl-tool
+The MHL tool is a reference implementation for creating and verifying MHL files (http://mediahashlist.org/). It's a cross-platform command line tool, available for Mac OS X, Linux and Windows that allows to create and verify MHL files.
+
+#### Context
+
+In the file-based workflows of digital cinematography today the secure and reliable transfer of media files is one of the essential activities to be performed in a production. The Media Hash List specification ensures that the complete source media is transferred without any alterations.
+
+#### Inventory list for folders
+
+The Media Hash List (MHL) standard specifies how a common inventory list of a folder's content looks like.
+
+MHL is an XML format, that basically lists all the files in a folder and all of its subfolders as well as corresponding checksums. This list is accompanied by additional information about the creation of the MHL file. 
+
+Technically speaking, the MHL file comprehends all the information necessary to tell if the folder structure or any of the contained files was modified since the MHL file was created.
+
+#### Reference implementation
+
+This repository contains an implementation of the MHL standard (http://mediahashlist.org/mhl-specification/). 
+
+The MHL tool has currently several subcommands: 'seal', 'verify', 'hash', 'file' and 'help'. They vary in complexity and in their input and output arguments: 'files and folders', 'hashes' and 'MHL files'. Below is an illustration of the relations between subcommands and arguments.
+
+##### mhl seal
+
+This is the preferred command to seal the contents of folders. 'mhl seal' takes folders as input and outputs an MHL file. The created MHL file references all files in the input folder and generates hashes for them.
+
+##### mhl verify
+
+This is the preferred command to verify folders by MHL files. 'mhl verify' takes folders as input, searches for MHL files in them and outputs information about the consistency and completeness of the MHL files.
+
+##### mhl hash
+
+This is the command to create hashes from files and to verify if a hash matches a file. 'mhl hash' either takes files as input and outputs hashes for them or it takes pairs of hashes and files and outputs matching info.
+
+##### mhl file
+
+This is the command to create MHL files from pairs of hashes and files. Furthermore, it is the command to parse MHL files and output the contained pairs of hashes and files.
+
+
+#### Installation and build
+
+Precompiled binaries for OS X, Windows and Linux can be downloaded from http://pomfort.com/download
+
+#### Dependencies
+MHL Tool has very little dependencies. The source code for xxhash (https://github.com/Cyan4973/xxHash) is included in the repository.
+
+#### Building on OS X
+
+Use XCode 6.4 and the XCode workspace at `dev_envs/MacOSX_10.7/MHL_Tools.xcworkspace`
+
+#### Building on Linux
+
+The makefile is located at `dev_envs/Ubuntu_12.04_x64`
+
+Dependencies: `libxml2-devel` `openssl-devel`
+
+After calling `make release` the results will be placed in `bin/Ubuntu_12.04_x64/Release`
+
+#### Building on Windows
+
+It should be possible to build the sources on Windows using Visual Studio 2013 or 2010
+
+
+
+
+
+
+

dev_envs/Ubuntu_12.04_x64/Makefile

@@ -0,0 +1,200 @@
+CC := gcc
+FLAGS := -Wall -D_GNU_SOURCE
+LDFLAGS := -lcrypto -lxml2
+TARGET_OS := Ubuntu_12.04_x64
+PROG := mhl
+SRC_DIR := ../../src
+INCLUDE_DIRS := -I$(SRC_DIR)
+CONFIGURE_COMMON_DIR := ../../src/facade_info
+
+BUILD_TYPES := DEBUG RELEASE
+DEBUG_CFLAGS := $(FLAGS) -ggdb -DDEBUG
+RELEASE_CFLAGS := $(FLAGS) -O3
+DEBUG_DIR := Debug
+RELEASE_DIR := Release
+DEBUG_CONFIG_NAME := debug
+RELEASE_CONFIG_NAME := release
+
+define VARS_DEF
+$(1)_BIN_DIR := ../../bin/$(TARGET_OS)/$$($(1)_DIR)
+$(1)_TARGET := $$($(1)_BIN_DIR)/$(PROG)
+COMMON_$(1)_BUILD_DIR := build/$$($(1)_DIR)/common
+TARGET_$(1)_BUILD_DIR := build/$$($(1)_DIR)/$(PROG)
+endef
+
+$(foreach BUILD_T,$(BUILD_TYPES),$(eval $(call VARS_DEF,$(BUILD_T))))
+
+FACADE_INFO_SRC_DIR := $(SRC_DIR)/facade_info
+FACADE_INFO_OBJS := error_codes.o
+FACADE_INFO_INC_FILES := $(FACADE_INFO_SRC_DIR)/error_codes.h
+
+GENERICS_OBJS := char_conversions.o \
+                 std_funcs_os_anonymizer.o \
+                 memory_management.o
+
+GENERICS_SRC_DIR := $(SRC_DIR)/generics
+GENERICS_INC_FILES := $(wildcard $(GENERICS_SRC_DIR)/*.h) $(FACADE_INFO_INC_FILES)
+
+GENERICS_FILESYSTEM_OBJS := file_path_decomposition.o \
+                            os_filepath_handlers.o \
+                            os_filesystem_elements.o
+
+GENERICS_FILESYSTEM_SRC_DIR := $(SRC_DIR)/generics/filesystem_handlers
+GENERICS_FILESYSTEM_INC_FILES := $(wildcard $(GENERICS_FILESYSTEM_SRC_DIR)/*.h) $(GENERICS_INC_FILES)
+
+MHLTOOLS_COMMON_OBJS := files_data.o \
+                        usage_printing.o \
+                        mhl_types.o \
+                        logging.o \
+                        hashing.o \
+                        xxhash.o \
+                        options.o
+
+MHLTOOLS_COMMON_SRC_DIR := $(SRC_DIR)/mhltools_common
+MHLTOOLS_COMMON_INC_FILES := $(wildcard $(MHLTOOLS_COMMON_SRC_DIR)/*.h) $(GENERICS_FILESYSTEM_INC_FILES)
+
+THIRD_PARTY_SRC_DIR := $(SRC_DIR)/third_party
+
+ARGS_SUPPORT_OBJS := file_sequences.o \
+                     aux_funcs.o
+ARGS_SUPPORT_SRC_DIR := $(SRC_DIR)/args_fileslist_support
+ARGS_SUPPORT_FILES := $(wildcard $(ARGS_SUPPORT_SRC_DIR)/*.h) $(MHLTOOLS_COMMON_INC_FILES)
+
+PARSEMHL_OBJS := mhl_file_handlers.o
+PARSEMHL_SRC_DIR := $(SRC_DIR)/parsemhl
+PARSEMHL_INC_DIRS := -I/usr/include/libxml2
+PARSEMHL_INC_FILES := $(wildcard $(PARSEMHL_INC_SRC_DIR)/*.h) $(MHLTOOLS_COMMON_INC_FILES) $(THIRD_PARTY_SRC_DIR)/uthash.h
+
+PRINTMHL_OBJS := print_mhl.o \
+                 mhl_creator.o
+PRINTMHL_SRC_DIR := $(SRC_DIR)/printmhl
+PRINTMHL_INC_FILES := $(wildcard $(PRINTMHL_INC_SRC_DIR)/*.h) $(MHLTOOLS_COMMON_INC_FILES)
+
+MHL_HELP_OBJS := help_topics.o \
+                 mhl_help.o
+MHL_HELP_SRC_DIR := $(SRC_DIR)/mhl_help
+MHL_HELP_INC_FILES := $(wildcard $(MHL_HELP_SRC_DIR)/*.h) $(MHLTOOLS_COMMON_INC_FILES)
+
+MHL_FILE_OBJS := input_parse_mode.o \
+                 mhl_file_parse_mode.o \
+                 mhl_file.o
+
+MHL_FILE_SRC_DIR := $(SRC_DIR)/mhl_file
+MHL_FILE_INC_FILES := $(sort $(wildcard $(MHL_FILE_SRC_DIR)/*.h) $(PARSEMHL_INC_FILES) $(PRINTMHL_INC_FILES) $(MHLTOOLS_COMMON_INC_FILES))
+
+MHL_SEAL_OBJS := mhl_seal.o
+MHL_SEAL_SRC_DIR := $(SRC_DIR)/mhl_seal
+MHL_SEAL_INC_FILES := $(sort $(wildcard $(MHL_SEAL_SRC_DIR)/*.h) $(ARGS_SUPPORT_FILES) $(PRINTMHL_INC_FILES) $(MHLTOOLS_COMMON_INC_FILES))
+
+MHL_HASH_OBJS := hash_calculate.o \
+                 input_verify.o \
+                 file_verify.o \
+                 mhl_hash.o
+MHL_HASH_SRC_DIR := $(SRC_DIR)/mhl_hash
+MHL_HASH_INC_FILES := $(sort $(wildcard $(MHL_HASH_SRC_DIR)/*.h) $(ARGS_SUPPORT_FILES) $(MHLTOOLS_COMMON_INC_FILES))
+
+MHL_VERIFICATION_OBJS := check_file.o \
+                         mhlverify.o
+
+MHL_VERIFICATION_SRC_DIR := $(SRC_DIR)/mhl_verify/mhl_verification
+MHL_VERIFY_SRC_DIR := $(SRC_DIR)/mhl_verify
+
+MHL_VERIFY_INC_FILES := $(sort $(wildcard $(MHL_VERIFICATION_SRC_DIR)/*.h) $(wildcard $(MHL_VERIFY_SRC_DIR)/*.h) $(ARGS_SUPPORT_FILES) $(MHLTOOLS_COMMON_INC_FILES))
+MHL_VERIFICATION_INC_FILES := $(sort $(MHL_VERIFY_INC_FILES) $(PARSEMHL_INC_FILES))
+
+MHL_VERIFY_OBJS := verify_options.o \
+                   mhl_verify.o
+
+MHL_OBJS := mhl.o
+MHL_SRC_DIR := $(SRC_DIR)/mhl
+MHL_INC_FILES := $(sort $(wildcard $(MHL_SRC_DIR)/*.h) $(MHL_HELP_INC_FILES) $(MHL_FILE_INC_FILES) $(MHL_SEAL_INC_FILES) $(MHL_HASH_INC_FILES) $(MHL_VERIFY_INC_FILES))
+
+.DEFAULT: all
+ifdef DEBUG
+all $(PROG): $(DEBUG_CONFIG_NAME) 
+else
+all $(PROG): $(RELEASE_CONFIG_NAME)
+endif
+
+#
+# Let's split common and target-specific rules definition for better readability
+# Trac manually dependencies from .h files until dependencies are not auto-calculated
+#
+SUBMODS_COMMON := FACADE_INFO GENERICS GENERICS_FILESYSTEM MHLTOOLS_COMMON
+
+define COMMON_FILES_DEF
+$(1)_DEBUG_FILES := $$(foreach obj_f,$$($(1)_OBJS),$(COMMON_DEBUG_BUILD_DIR)/$$(obj_f))
+$(1)_RELEASE_FILES := $$(foreach obj_f,$$($(1)_OBJS),$(COMMON_RELEASE_BUILD_DIR)/$$(obj_f))
+
+$$($(1)_RELEASE_FILES) $$($(1)_DEBUG_FILES):%.o: $$($(1)_SRC_DIR)/$$(@F:.o=.c) $$($(1)_INC_FILES)
+	@mkdir -p $$(COMMON_BUILD_DIR)
+	$$(CC) -c $$(CFLAGS) -o $$@ $(INCLUDE_DIRS) $$($(1)_SRC_DIR)/$$(@F:.o=.c) 
+
+COMMON_DEBUG_FILES += $$($(1)_DEBUG_FILES)
+COMMON_RELEASE_FILES += $$($(1)_RELEASE_FILES)
+endef
+
+$(foreach SUBMOD,$(SUBMODS_COMMON),$(eval $(call COMMON_FILES_DEF,$(SUBMOD))))
+
+SUBMODS_TARGET := ARGS_SUPPORT PRINTMHL PARSEMHL MHL_HELP MHL_FILE MHL_SEAL MHL_HASH MHL_VERIFICATION MHL_VERIFY MHL
+
+define TARGET_FILES_DEF
+$(1)_DEBUG_FILES := $$(foreach obj_f,$$($(1)_OBJS),$(TARGET_DEBUG_BUILD_DIR)/$$(obj_f))
+$(1)_RELEASE_FILES := $$(foreach obj_f,$$($(1)_OBJS),$(TARGET_RELEASE_BUILD_DIR)/$$(obj_f))
+
+$$($(1)_RELEASE_FILES) $$($(1)_DEBUG_FILES):%.o: $$($(1)_SRC_DIR)/$$(@F:.o=.c) $$($(1)_INC_FILES)
+	@mkdir -p $$(TARGET_BUILD_DIR)
+	$$(CC) -c $$(CFLAGS) -o $$@ $(INCLUDE_DIRS) $$($(2)) $$($(1)_SRC_DIR)/$$(@F:.o=.c) 
+
+TARGET_DEBUG_FILES += $$($(1)_DEBUG_FILES)
+TARGET_RELEASE_FILES += $$($(1)_RELEASE_FILES)
+endef
+
+$(foreach SUBMOD,$(SUBMODS_TARGET),$(eval $(call TARGET_FILES_DEF,$(SUBMOD),$(SUBMOD)_INC_DIRS)))
+
+#
+# Define main targets and target-specific variables
+#
+
+define TARGET_DEF
+$$($(1)_CONFIG_NAME): CFLAGS := $$($(1)_CFLAGS)
+
+$$($(1)_CONFIG_NAME) $$($(1)_CONFIG_NAME)-clean: COMMON_BUILD_DIR := $$(COMMON_$(1)_BUILD_DIR)
+
+$$($(1)_CONFIG_NAME) $$($(1)_CONFIG_NAME)-clean: TARGET_BUILD_DIR := $$(TARGET_$(1)_BUILD_DIR)
+
+$$($(1)_CONFIG_NAME) $$($(1)_CONFIG_NAME)-clean: BIN_DIR := $$($(1)_BIN_DIR)
+$$($(1)_CONFIG_NAME) $$($(1)_CONFIG_NAME)-clean: TARGET := $$($(1)_TARGET)
+
+
+$$($(1)_CONFIG_NAME): configure $$($(1)_TARGET)
+
+$$($(1)_TARGET): $$(COMMON_$(1)_FILES) $$(TARGET_$(1)_FILES)
+	@mkdir -p $$(BIN_DIR) 
+	$(CC) $$(CFLAGS) -o $$@ $$(COMMON_$(1)_FILES) $$(TARGET_$(1)_FILES) $(LDFLAGS) 
+	@echo ============== $(1) $(PROG) DONE ================
+endef
+
+$(foreach BUILD_T,$(BUILD_TYPES),$(eval $(call TARGET_DEF,$(BUILD_T))))
+
+configure:
+	$(CONFIGURE_COMMON_DIR)/get_build_version.py
+
+clean: $(RELEASE_CONFIG_NAME)-clean $(DEBUG_CONFIG_NAME)-clean
+
+$(RELEASE_CONFIG_NAME)-clean $(DEBUG_CONFIG_NAME)-clean:
+	rm -f $(TARGET)
+	rm -rf $(COMMON_BUILD_DIR)
+	rm -rf $(TARGET_BUILD_DIR)
+
+#
+# phony targets
+#
+
+.PHONY: clean 
+
+.PHONY: release-clean
+
+.PHONY: debug-clean
+
+.PHONY: configure