--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Resources/Orthanc/CMake/DownloadPackage.cmake	Wed Mar 22 10:16:47 2023 +0100
@@ -0,0 +1,279 @@
+# Orthanc - A Lightweight, RESTful DICOM Store
+# Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
+# Department, University Hospital of Liege, Belgium
+# Copyright (C) 2017-2022 Osimis S.A., Belgium
+# Copyright (C) 2021-2022 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
+#
+# This program is free software: you can redistribute it and/or
+# modify it under the terms of the GNU Lesser 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
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this program. If not, see
+# <http://www.gnu.org/licenses/>.
+
+
+macro(GetUrlFilename TargetVariable Url)
+  string(REGEX REPLACE "^.*/" "" ${TargetVariable} "${Url}")
+endmacro()
+
+
+macro(GetUrlExtension TargetVariable Url)
+  #string(REGEX REPLACE "^.*/[^.]*\\." "" TMP "${Url}")
+  string(REGEX REPLACE "^.*\\." "" TMP "${Url}")
+  string(TOLOWER "${TMP}" "${TargetVariable}")
+endmacro()
+
+
+
+##
+## Setup the patch command-line tool
+##
+
+if (NOT ORTHANC_DISABLE_PATCH)
+  if ("${CMAKE_HOST_SYSTEM_NAME}" STREQUAL "Windows")
+    set(PATCH_EXECUTABLE ${CMAKE_CURRENT_LIST_DIR}/../ThirdParty/patch/patch.exe)
+    if (NOT EXISTS ${PATCH_EXECUTABLE})
+      message(FATAL_ERROR "Unable to find the patch.exe tool that is shipped with Orthanc")
+    endif()
+
+  else ()
+    find_program(PATCH_EXECUTABLE patch)
+    if (${PATCH_EXECUTABLE} MATCHES "PATCH_EXECUTABLE-NOTFOUND")
+      message(FATAL_ERROR "Please install the 'patch' standard command-line tool")
+    endif()
+  endif()
+endif()
+
+
+
+##
+## Check the existence of the required decompression tools
+##
+
+if ("${CMAKE_HOST_SYSTEM_NAME}" STREQUAL "Windows")
+  find_program(ZIP_EXECUTABLE 7z 
+    PATHS 
+    "$ENV{ProgramFiles}/7-Zip"
+    "$ENV{ProgramW6432}/7-Zip"
+    )
+
+  if (${ZIP_EXECUTABLE} MATCHES "ZIP_EXECUTABLE-NOTFOUND")
+    message(FATAL_ERROR "Please install the '7-zip' software (http://www.7-zip.org/)")
+  endif()
+
+else()
+  find_program(UNZIP_EXECUTABLE unzip)
+  if (${UNZIP_EXECUTABLE} MATCHES "UNZIP_EXECUTABLE-NOTFOUND")
+    message(FATAL_ERROR "Please install the 'unzip' package")
+  endif()
+
+  find_program(TAR_EXECUTABLE tar)
+  if (${TAR_EXECUTABLE} MATCHES "TAR_EXECUTABLE-NOTFOUND")
+    message(FATAL_ERROR "Please install the 'tar' package")
+  endif()
+
+  find_program(GUNZIP_EXECUTABLE gunzip)
+  if (${GUNZIP_EXECUTABLE} MATCHES "GUNZIP_EXECUTABLE-NOTFOUND")
+    message(FATAL_ERROR "Please install the 'gzip' package")
+  endif()
+endif()
+
+
+macro(DownloadFile MD5 Url)
+  GetUrlFilename(TMP_FILENAME "${Url}")
+
+  set(TMP_PATH "${CMAKE_SOURCE_DIR}/ThirdPartyDownloads/${TMP_FILENAME}")
+  if (NOT EXISTS "${TMP_PATH}")
+    message("Downloading ${Url}")
+
+    # This fixes issue 6: "I think cmake shouldn't download the
+    # packages which are not in the system, it should stop and let
+    # user know."
+    # https://code.google.com/p/orthanc/issues/detail?id=6
+    if (NOT STATIC_BUILD AND NOT ALLOW_DOWNLOADS)
+      message(FATAL_ERROR "CMake is not allowed to download from Internet. Please set the ALLOW_DOWNLOADS option to ON")
+    endif()
+
+    if ("${MD5}" STREQUAL "no-check")
+      message(WARNING "Not checking the MD5 of: ${Url}")
+      file(DOWNLOAD "${Url}" "${TMP_PATH}"
+        SHOW_PROGRESS TIMEOUT 300 INACTIVITY_TIMEOUT 60
+        STATUS Failure)
+    else()
+      file(DOWNLOAD "${Url}" "${TMP_PATH}"
+        SHOW_PROGRESS TIMEOUT 300 INACTIVITY_TIMEOUT 60
+        EXPECTED_MD5 "${MD5}" STATUS Failure)
+    endif()
+
+    list(GET Failure 0 Status)
+    if (NOT Status EQUAL 0)
+      message(FATAL_ERROR "Cannot download file: ${Url}")
+    endif()
+    
+  else()
+    message("Using local copy of ${Url}")
+
+    if ("${MD5}" STREQUAL "no-check")
+      message(WARNING "Not checking the MD5 of: ${Url}")
+    else()
+      file(MD5 ${TMP_PATH} ActualMD5)
+      if (NOT "${ActualMD5}" STREQUAL "${MD5}")
+        message(FATAL_ERROR "The MD5 hash of a previously download file is invalid: ${TMP_PATH}")
+      endif()
+    endif()
+  endif()
+endmacro()
+
+
+macro(DownloadPackage MD5 Url TargetDirectory)
+  if (NOT IS_DIRECTORY "${TargetDirectory}")
+    DownloadFile("${MD5}" "${Url}")
+    
+    GetUrlExtension(TMP_EXTENSION "${Url}")
+    #message(${TMP_EXTENSION})
+    message("Uncompressing ${TMP_FILENAME}")
+
+    if ("${CMAKE_HOST_SYSTEM_NAME}" STREQUAL "Windows")
+      # How to silently extract files using 7-zip
+      # http://superuser.com/questions/331148/7zip-command-line-extract-silently-quietly
+
+      if (("${TMP_EXTENSION}" STREQUAL "gz") OR 
+          ("${TMP_EXTENSION}" STREQUAL "tgz") OR
+          ("${TMP_EXTENSION}" STREQUAL "xz"))
+        execute_process(
+          COMMAND ${ZIP_EXECUTABLE} e -y ${TMP_PATH}
+          WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
+          RESULT_VARIABLE Failure
+          OUTPUT_QUIET
+          )
+
+        if (Failure)
+          message(FATAL_ERROR "Error while running the uncompression tool")
+        endif()
+
+        if ("${TMP_EXTENSION}" STREQUAL "tgz")
+          string(REGEX REPLACE ".tgz$" ".tar" TMP_FILENAME2 "${TMP_FILENAME}")
+        elseif ("${TMP_EXTENSION}" STREQUAL "gz")
+          string(REGEX REPLACE ".gz$" "" TMP_FILENAME2 "${TMP_FILENAME}")
+        elseif ("${TMP_EXTENSION}" STREQUAL "xz")
+          string(REGEX REPLACE ".xz" "" TMP_FILENAME2 "${TMP_FILENAME}")
+        endif()
+
+        execute_process(
+          COMMAND ${ZIP_EXECUTABLE} x -y ${TMP_FILENAME2}
+          WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
+          RESULT_VARIABLE Failure
+          OUTPUT_QUIET
+          )
+      elseif ("${TMP_EXTENSION}" STREQUAL "zip")
+        execute_process(
+          COMMAND ${ZIP_EXECUTABLE} x -y ${TMP_PATH}
+          WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
+          RESULT_VARIABLE Failure
+          OUTPUT_QUIET
+          )
+      else()
+        message(FATAL_ERROR "Unsupported package extension: ${TMP_EXTENSION}")
+      endif()
+
+    else()
+      if ("${TMP_EXTENSION}" STREQUAL "zip")
+        execute_process(
+          COMMAND sh -c "${UNZIP_EXECUTABLE} -q ${TMP_PATH}"
+          WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
+          RESULT_VARIABLE Failure
+        )
+      elseif (("${TMP_EXTENSION}" STREQUAL "gz") OR ("${TMP_EXTENSION}" STREQUAL "tgz"))
+        #message("tar xvfz ${TMP_PATH}")
+        execute_process(
+          COMMAND sh -c "${TAR_EXECUTABLE} xfz ${TMP_PATH}"
+          WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
+          RESULT_VARIABLE Failure
+          )
+      elseif ("${TMP_EXTENSION}" STREQUAL "bz2")
+        execute_process(
+          COMMAND sh -c "${TAR_EXECUTABLE} xfj ${TMP_PATH}"
+          WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
+          RESULT_VARIABLE Failure
+          )
+      elseif ("${TMP_EXTENSION}" STREQUAL "xz")
+        execute_process(
+          COMMAND sh -c "${TAR_EXECUTABLE} xf ${TMP_PATH}"
+          WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
+          RESULT_VARIABLE Failure
+          )
+      else()
+        message(FATAL_ERROR "Unsupported package extension: ${TMP_EXTENSION}")
+      endif()
+    endif()
+   
+    if (Failure)
+      message(FATAL_ERROR "Error while running the uncompression tool")
+    endif()
+
+    if (NOT IS_DIRECTORY "${TargetDirectory}")
+      message(FATAL_ERROR "The package was not uncompressed at the proper location. Check the CMake instructions.")
+    endif()
+  endif()
+endmacro()
+
+
+
+macro(DownloadCompressedFile MD5 Url TargetFile)
+  if (NOT EXISTS "${TargetFile}")
+    DownloadFile("${MD5}" "${Url}")
+    
+    GetUrlExtension(TMP_EXTENSION "${Url}")
+    #message(${TMP_EXTENSION})
+    message("Uncompressing ${TMP_FILENAME}")
+
+    if ("${CMAKE_HOST_SYSTEM_NAME}" STREQUAL "Windows")
+      # How to silently extract files using 7-zip
+      # http://superuser.com/questions/331148/7zip-command-line-extract-silently-quietly
+
+      if ("${TMP_EXTENSION}" STREQUAL "gz")
+        execute_process(
+          # "-so" writes uncompressed file to stdout
+          COMMAND ${ZIP_EXECUTABLE} e -so -y ${TMP_PATH}
+          OUTPUT_FILE "${TargetFile}"
+          WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
+          RESULT_VARIABLE Failure
+          OUTPUT_QUIET
+          )
+
+        if (Failure)
+          message(FATAL_ERROR "Error while running the uncompression tool")
+        endif()
+
+      else()
+        message(FATAL_ERROR "Unsupported file extension: ${TMP_EXTENSION}")
+      endif()
+
+    else()
+      if ("${TMP_EXTENSION}" STREQUAL "gz")
+        execute_process(
+          COMMAND sh -c "${GUNZIP_EXECUTABLE} -c ${TMP_PATH}"
+          OUTPUT_FILE "${TargetFile}"
+          RESULT_VARIABLE Failure
+          )
+      else()
+        message(FATAL_ERROR "Unsupported file extension: ${TMP_EXTENSION}")
+      endif()
+    endif()
+   
+    if (Failure)
+      message(FATAL_ERROR "Error while running the uncompression tool")
+    endif()
+
+    if (NOT EXISTS "${TargetFile}")
+      message(FATAL_ERROR "The file was not uncompressed at the proper location. Check the CMake instructions.")
+    endif()
+  endif()
+endmacro()