3 # Abort any push early if the pushing user doesn't have any push permissions
4 # at all. This avoids unnecessary traffic and unpacked object pollution.
6 # This script is intended for use from within the chroot jail and may or may
7 # not work properly outside it.
11 # git_add_config "some.var=value"
12 # every ' in value must be replaced with the 4-character sequence '\'' before
13 # calling this function or Git will barf. Will not be effective unless running
14 # Git version 1.7.3 or later.
16 GIT_CONFIG_PARAMETERS
="${GIT_CONFIG_PARAMETERS:+$GIT_CONFIG_PARAMETERS }'$1'"
17 export GIT_CONFIG_PARAMETERS
22 GIT_NO_REPLACE_OBJECTS
=1
25 if ! [ -x @perlbin@
]; then
26 # We are INSIDE the chroot
27 reporoot
=/@jailreporoot@
28 XDG_CONFIG_HOME
=/var
/empty
30 GIT_ASKPASS
=/bin
/git-askpass-password
32 # We are NOT INSIDE the chroot
34 XDG_CONFIG_HOME
=@chroot@
/var
/empty
35 HOME
=@chroot@
/etc
/girocco
36 GIT_ASKPASS
=@basedir@
/bin
/git-askpass-password
41 defined_ua
=@defined_git_server_ua@
42 cfg_git_no_mmap
=@git_no_mmap@
43 var_big_file_threshold
=@big_file_threshold@
44 var_upload_window
=@upload_pack_window@
46 export XDG_CONFIG_HOME
48 export GIT_CONFIG_NOSYSTEM
49 export GIT_ATTR_NOSYSTEM
50 export GIT_NO_REPLACE_OBJECTS
51 export GIT_TERMINAL_PROMPT
54 unset GIT_HTTP_USER_AGENT
55 if [ -n "$defined_ua" ]; then
58 GIT_HTTP_USER_AGENT
="$ua"
59 export GIT_HTTP_USER_AGENT
61 unset GIT_CONFIG_PARAMETERS
62 git_add_config
"core.ignoreCase=false"
63 if [ -n "$cfg_git_no_mmap" ]; then
64 # Just like compiling with NO_MMAP
65 git_add_config
"core.packedGitWindowSize=1m"
67 # Always use the 32-bit default (32m) even on 64-bit to avoid memory blowout
68 git_add_config
"core.packedGitWindowSize=32m"
70 [ -z "$var_big_file_threshold" ] ||
71 git_add_config
"core.bigFileThreshold=$var_big_file_threshold"
73 # Only the following commands are allowed:
75 # git-shell -c "git-receive-pack 'dir'"
76 # git-shell -c "git receive-pack 'dir'"
77 # git-shell -c "git-upload-pack 'dir'"
78 # git-shell -c "git upload-pack 'dir'"
79 # git-shell -c "git-upload-archive 'dir'"
80 # git-shell -c "git upload-archive 'dir'"
82 # where dir must start with $reporoot/ but a leading/trailing '/' is optional
83 # as well as the final .git however if $dir does not start with $reporoot but
84 # adding a $reporoot prefix makes it work then the $reporoot prefix will be
87 if [ "$1" != "-c" ]; then
95 "git-receive-pack "*) type='receive-pack'; dir
="${dir#git-receive-pack }";;
96 "git receive-pack "*) type='receive-pack'; dir
="${dir#git receive-pack }";;
97 "git-upload-pack "*) type='upload-pack'; dir
="${dir#git-upload-pack }";;
98 "git upload-pack "*) type='upload-pack'; dir
="${dir#git upload-pack }";;
99 "git-upload-archive "*) type='upload-archive'; dir
="${dir#git-upload-archive }";;
100 "git upload-archive "*) type='upload-archive'; dir
="${dir#git upload-archive }";;
106 # valid project names only allow 0-9A-Za-z._+- plus the / separator and they
107 # are always single quoted so the only valid directory names will always start
108 # with a single quote and end with a single quote and not contain any internal
109 # character that needs to be escaped.
124 # Some shells do not properly handle quoting after # or % so we cannot
125 # put an explicit ' there in a way that works for all shells. Instead
126 # just remove a single character since we've already verified it's a '.
127 dir
="${dir#?}"; dir
="${dir%?}"
129 # add a missing leading /
136 # remove a trailing /
142 # add a missing trailing .git
149 # do not allow any .. sequence
158 # Allow it if prefixing with $reporoot matches an existing directory
159 if [ -d "$reporoot$dir" ]; then
167 # Valid project names never end in .git (we add that automagically), so a valid
168 # fork can never have .git at the end of any path component except the last.
169 # We check this to avoid a situation where a certain collection of pushed refs
170 # could be mistaken for a GIT_DIR. Git would ultimately complain, but some
171 # undesirable things could happen along the way.
173 # Remove the leading $reporoot and trailing .git to get a test string
174 testpath
="${dir#$reporoot/}"
175 testpath
="${testpath%.git}"
176 case "$testpath/" in *.
[Gg
][Ii
][Tt
]/*|_
*)
181 if ! [ -d "$dir" ] ||
! [ -f "$dir/HEAD" ] ||
! [ -d "$dir/objects" ]; then
186 proj
="${dir#$reporoot/}"; projbare
="${proj%.git}"
188 if [ "$type" = 'receive-pack' ] && [ "$LOGNAME" = 'git' ]; then
189 echo "The user '$LOGNAME' may only be used for fetches, sorry" >&2
193 if [ "$type" = 'receive-pack' ] && ! [ -f "$dir/.nofetch" ]; then
194 echo "The $proj project is a mirror and may not be pushed to, sorry" >&2
198 if [ "$type" = 'receive-pack' ]; then
199 git_add_config
'receive.unpackLimit=1'
200 # Note the git config documentation is wrong
201 # transfer.unpackLimit, if set, overrides receive.unpackLimit
202 git_add_config
'transfer.unpackLimit=1'
205 if ! [ -x @perlbin@
] && [ "$type" = 'receive-pack' ]; then
206 # We are INSIDE the chroot trying to push
208 if ! can_user_push
"$projbare"; then
209 # If mob is enabled and mob has push permissions and
210 # the current user is not the mob then it's a personal mob push
211 # presuming the special mob directory has been set up
212 if [ "$mob" = "mob" -a "$LOGNAME" != "mob" -a -d "$reporoot/$proj/mob" ] &&
213 can_user_push
"$projbare" mob
; then
216 > "/etc/sshactive/${LOGNAME},"
217 mv -f "/etc/sshactive/${LOGNAME}," "/etc/sshactive/${LOGNAME}"
218 ! [ -e "$dir/.delaygc" ] ||
> "$dir/.allowgc" ||
:
220 exec git-shell
-c "git-receive-pack '$reporoot/$proj/mob'"
223 echo "The user '$LOGNAME' does not have push permissions for project '$proj'" >&2
224 echo "You may adjust push permissions at $webadmurl/editproj.cgi?name=$proj" >&2
229 > "/etc/sshactive/${LOGNAME},"
230 mv -f "/etc/sshactive/${LOGNAME}," "/etc/sshactive/${LOGNAME}"
231 ! [ -e "$dir/.delaygc" ] ||
> "$dir/.allowgc" ||
:
235 [ -z "$var_upload_window" ] ||
[ "$type" != "upload-pack" ] || \
236 git_add_config
"pack.window=$var_upload_window"
238 exec git-shell
-c "git-$type '$dir'"