Hmm ... It's impossible ;-) This RPM doesn't exist on any FTP server

Provides :
ghc-happstack-server
ghc-happstack-server(x86-64)
libHShappstack-server-7.5.1.1-BODClFdV1z97jGMOeIvyYL-ghc8.4.3.so()(64bit)

Requires :

libHSarray-0.5.2.0-ghc8.4.3.so()(64bit)
libHSbase-4.11.1.0-ghc8.4.3.so()(64bit)
libHSbase-orphans-0.7-85wcea2rRmdArILlfYz5fz-ghc8.4.3.so()(64bit)
libHSbase64-bytestring-1.0.0.1-4OCIe2BZn8jKI191JIXI37-ghc8.4.3.so()(64bit)
libHSbinary-0.8.5.1-ghc8.4.3.so()(64bit)
libHSblaze-builder-0.4.1.0-Gz7BwSYlOrTDOutVN7e028-ghc8.4.3.so()(64bit)
libHSblaze-html-0.9.1.1-1wFrHszdUiu3porcnVAw4Q-ghc8.4.3.so()(64bit)
libHSblaze-markup-0.8.2.1-FFkiru1HsegAfMrnqJMDug-ghc8.4.3.so()(64bit)
libHSbytestring-0.10.8.2-ghc8.4.3.so()(64bit)
libHScontainers-0.5.11.0-ghc8.4.3.so()(64bit)
libHSdeepseq-1.4.3.0-ghc8.4.3.so()(64bit)
libHSdirectory-1.3.1.5-ghc8.4.3.so()(64bit)
libHSexceptions-0.10.0-AVSDKbmH3Lu5hW6xKPipBD-ghc8.4.3.so()(64bit)
libHSextensible-exceptions-0.1.1.4-J1OT5xNWUKn5hZNwjN7aJn-ghc8.4.3.so()(64bit)
libHSfilepath-1.4.2-ghc8.4.3.so()(64bit)
libHSghc-boot-th-8.4.3-ghc8.4.3.so()(64bit)
libHSghc-prim-0.5.2.0-ghc8.4.3.so()(64bit)
libHShslogger-1.2.10-H3A85MX16QJ8irvqlaeuve-ghc8.4.3.so()(64bit)
libHShtml-1.0.1.2-G4td77RosvCvhPgoBbjtm-ghc8.4.3.so()(64bit)
libHSinteger-gmp-1.0.2.0-ghc8.4.3.so()(64bit)
libHSmonad-control-1.0.2.3-EeeHqvyhcVXLIEZuTOhIR1-ghc8.4.3.so()(64bit)
libHSmtl-2.2.2-ghc8.4.3.so()(64bit)
libHSnetwork-2.6.3.6-2g6VId0Xlc85XRtUcfQj0T-ghc8.4.3.so()(64bit)
libHSnetwork-uri-2.6.1.0-AstEwZoXrlUJQq4VkxaVo9-ghc8.4.3.so()(64bit)
libHSold-locale-1.0.0.7-26K7wLFR2jK44UeOklvTCh-ghc8.4.3.so()(64bit)
libHSold-time-1.1.0.3-2H7uVRdRD4GDRLoYt56mwc-ghc8.4.3.so()(64bit)
libHSparsec-3.1.13.0-ghc8.4.3.so()(64bit)
libHSpretty-1.1.3.6-ghc8.4.3.so()(64bit)
libHSprocess-1.6.3.0-ghc8.4.3.so()(64bit)
libHSsemigroups-0.18.5-E4FVMc5VZAG98u64romz5-ghc8.4.3.so()(64bit)
libHSsendfile-0.7.9-K93vns86uqwJ4STfgC1rop-ghc8.4.3.so()(64bit)
libHSstm-2.4.5.0-ghc8.4.3.so()(64bit)
libHSsyb-0.7-2jW43lwzJV5e7EQvU8PxV-ghc8.4.3.so()(64bit)
libHSsystem-filepath-0.4.14-9jYDOZRDoMqIkxdisSNvm4-ghc8.4.3.so()(64bit)
libHStemplate-haskell-2.13.0.0-ghc8.4.3.so()(64bit)
libHStext-1.2.3.0-ghc8.4.3.so()(64bit)
libHSthreads-0.5.1.6-CGqqbRFoP19xOZXs8Y9GS-ghc8.4.3.so()(64bit)
libHStime-1.8.0.2-ghc8.4.3.so()(64bit)
libHStime-compat-0.1.0.3-4w6JW7fIh1u6dmIZtYmVpb-ghc8.4.3.so()(64bit)
libHStransformers-0.5.5.0-ghc8.4.3.so()(64bit)
libHStransformers-base-0.4.5.2-H2qElSkkJsv7uyyMMnVYVF-ghc8.4.3.so()(64bit)
libHStransformers-compat-0.6.2-EZ0ZvADLUlc4V8RuKaJX5W-ghc8.4.3.so()(64bit)
libHSunix-2.7.2.2-ghc8.4.3.so()(64bit)
libHSutf8-string-1.0.1.1-LRSjvSC6FZkKPp48Qszoj8-ghc8.4.3.so()(64bit)
libHSxhtml-3000.2.2.1-ghc8.4.3.so()(64bit)
libHSzlib-0.6.2-FP80mWgJNoyCiVcPtw6kKj-ghc8.4.3.so()(64bit)
libc.so.6()(64bit)
libc.so.6(GLIBC_2.14)(64bit)
libc.so.6(GLIBC_2.2.5)(64bit)
libdl.so.2()(64bit)
libgmp.so.10()(64bit)
libm.so.6()(64bit)
libpthread.so.0()(64bit)
librt.so.1()(64bit)
libutil.so.1()(64bit)
libz.so.1()(64bit)
rpmlib(CompressedFileNames) <= 3.0.4-1
rpmlib(FileDigests) <= 4.6.0-1
rpmlib(PayloadFilesHavePrefix) <= 4.0-1
rpmlib(PayloadIsXz) <= 5.2-1

Content of RPM :
/usr/lib64/ghc-8.4.3/happstack-server-7.5.1.1-BODClFdV1z97jGMOeIvyYL
/usr/lib64/ghc-8.4.3/happstack-server-7.5.1.1-BODClFdV1z97jGMOeIvyYL/libHShappstack-server-7.5.1.1-BODClFdV1z97jGMOeIvyYL-ghc8.4.3.so
/usr/share/licenses/ghc-happstack-server
/usr/share/licenses/ghc-happstack-server/COPYING