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 }'$1'"
17 export GIT_CONFIG_PARAMETERS
22 GIT_NO_REPLACE_OBJECTS
=1
25 if ! [ -x @perlbin@
]; then
26 # We are INSIDE the chroot
27 reporoot
=/@jailreporoot@
28 XDG_CONFIG_HOME
=/var
/empty
30 GIT_ASKPASS
=/bin
/git-askpass-password
32 # We are NOT INSIDE the chroot
34 XDG_CONFIG_HOME
=@chroot@
/var
/empty
35 HOME
=@chroot@
/etc
/girocco
36 GIT_ASKPASS
=@basedir@
/bin
/git-askpass-password
41 defined_ua
=@defined_git_server_ua@
43 export XDG_CONFIG_HOME
45 export GIT_CONFIG_NOSYSTEM
46 export GIT_ATTR_NOSYSTEM
47 export GIT_NO_REPLACE_OBJECTS
48 export GIT_TERMINAL_PROMPT
51 unset GIT_HTTP_USER_AGENT
52 if [ -n "$defined_ua" ]; then
55 GIT_HTTP_USER_AGENT
="$ua"
56 export GIT_HTTP_USER_AGENT
59 # Only the following commands are allowed:
61 # git-shell -c "git-receive-pack 'dir'"
62 # git-shell -c "git receive-pack 'dir'"
63 # git-shell -c "git-upload-pack 'dir'"
64 # git-shell -c "git upload-pack 'dir'"
65 # git-shell -c "git-upload-archive 'dir'"
66 # git-shell -c "git upload-archive 'dir'"
68 # where dir must start with $reporoot/ but a leading/trailing '/' is optional
69 # as well as the final .git however if $dir does not start with $reporoot but
70 # adding a $reporoot prefix makes it work then the $reporoot prefix will be
73 if [ "$1" != "-c" ]; then
81 "git-receive-pack "*) type='receive-pack'; dir
="${dir#git-receive-pack }";;
82 "git receive-pack "*) type='receive-pack'; dir
="${dir#git receive-pack }";;
83 "git-upload-pack "*) type='upload-pack'; dir
="${dir#git-upload-pack }";;
84 "git upload-pack "*) type='upload-pack'; dir
="${dir#git upload-pack }";;
85 "git-upload-archive "*) type='upload-archive'; dir
="${dir#git-upload-archive }";;
86 "git upload-archive "*) type='upload-archive'; dir
="${dir#git upload-archive }";;
92 # valid project names only allow 0-9A-Za-z._+- plus the / separator and they
93 # are always single quoted so the only valid directory names will always start
94 # with a single quote and end with a single quote and not contain any internal
95 # character that needs to be escaped.
110 # Some shells do not properly handle quoting after # or % so we cannot
111 # put an explicit ' there in a way that works for all shells. Instead
112 # just remove a single character since we've already verified it's a '.
113 dir
="${dir#?}"; dir
="${dir%?}"
115 # add a missing leading /
122 # remove a trailing /
128 # add a missing trailing .git
135 # do not allow any .. sequence
144 # Allow it if prefixing with $reporoot matches an existing directory
145 if [ -d "$reporoot$dir" ]; then
153 # Valid project names never end in .git (we add that automagically), so a valid
154 # fork can never have .git at the end of any path component except the last.
155 # We check this to avoid a situation where a certain collection of pushed refs
156 # could be mistaken for a GIT_DIR. Git would ultimately complain, but some
157 # undesirable things could happen along the way.
159 # Remove the leading $reporoot and trailing .git to get a test string
160 testpath
="${dir#$reporoot/}"
161 testpath
="${testpath%.git}"
162 case "$testpath/" in *.
[Gg
][Ii
][Tt
]/*|_
*)
167 if ! [ -d "$dir" ] ||
! [ -f "$dir/HEAD" ] ||
! [ -d "$dir/objects" ]; then
172 proj
="${dir#$reporoot/}"; projbare
="${proj%.git}"
174 if [ "$type" = 'receive-pack' ] && ! [ -f "$dir/.nofetch" ]; then
175 echo "The $proj project is a mirror and may not be pushed to, sorry" >&2
179 if [ "$type" = 'receive-pack' ]; then
180 git_add_config
'receive.unpackLimit=1'
181 # Note the git config documentation is wrong
182 # transfer.unpackLimit, if set, overrides receive.unpackLimit
183 git_add_config
'transfer.unpackLimit=1'
186 if ! [ -x @perlbin@
] && [ "$type" = 'receive-pack' ]; then
187 # We are INSIDE the chroot trying to push
189 if ! can_user_push
"$projbare"; then
190 # If mob is enabled and mob has push permissions and
191 # the current user is not the mob then it's a personal mob push
192 # presuming the special mob directory has been set up
193 if [ "$mob" = "mob" -a "$LOGNAME" != "mob" -a -d "$reporoot/$proj/mob" ] &&
194 can_user_push
"$projbare" mob
; then
197 > "/etc/sshactive/${LOGNAME},"
198 mv -f "/etc/sshactive/${LOGNAME}," "/etc/sshactive/${LOGNAME}"
199 ! [ -e "$dir/.delaygc" ] ||
> "$dir/.allowgc" ||
:
201 exec git-shell
-c "git-receive-pack '$reporoot/$proj/mob'"
204 echo "The user '$LOGNAME' does not have push permissions for project '$proj'" >&2
205 echo "You may adjust push permissions at $webadmurl/editproj.cgi?name=$proj" >&2
210 > "/etc/sshactive/${LOGNAME},"
211 mv -f "/etc/sshactive/${LOGNAME}," "/etc/sshactive/${LOGNAME}"
212 ! [ -e "$dir/.delaygc" ] ||
> "$dir/.allowgc" ||
:
216 exec git-shell
-c "git-$type '$dir'"