| 1 | #The name of the main class must match the file name in lowercase |
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| 2 | import os |
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| 3 | import urllib |
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| 4 | import shutil |
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| 5 | import gi |
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| 6 | from gi.repository import Gio |
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| 7 | gi.require_version ('Snapd', '1') |
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| 8 | from gi.repository import Snapd |
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| 9 | gi.require_version('AppStreamGlib', '1.0') |
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| 10 | from gi.repository import AppStreamGlib as appstream |
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| 11 | import time |
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| 12 | #Needed for async find method, perhaps only on xenial |
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| 13 | wrap=Gio.SimpleAsyncResult() |
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| 14 | class snapmanager: |
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| 15 | |
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| 16 | def __init__(self): |
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| 17 | self.dbg=False |
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| 18 | self.progress=0 |
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| 19 | self.partial_progress=0 |
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| 20 | self.plugin_actions={'install':'snap','remove':'snap','pkginfo':'snap','load':'snap'} |
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| 21 | self.cache_dir="/var/lib/lliurexstore/bundles/cache" |
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| 22 | self.icons_folder=self.cache_dir+"/icons" |
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| 23 | self.result={} |
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| 24 | self.result['data']={} |
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| 25 | self.result['status']={} |
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| 26 | self.disabled=False |
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| 27 | self.icon_cache_enabled=True |
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| 28 | self.cli_mode=False |
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| 29 | if not os.path.isdir(self.icons_folder): |
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| 30 | try: |
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| 31 | os.makedirs(self.icons_folder) |
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| 32 | except: |
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| 33 | self.icon_cache_enabled=False |
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| 34 | self._debug("Icon cache disabled") |
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| 35 | #def __init__ |
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| 36 | |
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| 37 | def set_debug(self,dbg=True): |
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| 38 | self.dbg=dbg |
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| 39 | self._debug ("Debug enabled") |
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| 40 | #def set_debug |
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| 41 | |
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| 42 | def _debug(self,msg=''): |
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| 43 | if self.dbg: |
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| 44 | print ('DEBUG snap: '+msg) |
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| 45 | #def debug |
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| 46 | |
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| 47 | def register(self): |
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| 48 | return(self.plugin_actions) |
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| 49 | |
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| 50 | def enable(self,state=False): |
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| 51 | self.disabled=state |
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| 52 | |
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| 53 | def execute_action(self,action,applist=None,store=None,results=0): |
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| 54 | if store: |
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| 55 | self.store=store |
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| 56 | else: |
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| 57 | self.store=appstream.Store() |
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| 58 | self.progress=0 |
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| 59 | self.result['status']={'status':-1,'msg':''} |
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| 60 | self.result['data']='' |
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| 61 | |
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| 62 | |
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| 63 | if self.disabled==True: |
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| 64 | self._set_status(9) |
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| 65 | self.result['data']=self.store |
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| 66 | else: |
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| 67 | self.snap_client=Snapd.Client() |
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| 68 | self.snap_client.connect_sync(None) |
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| 69 | dataList=[] |
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| 70 | if action=='load': |
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| 71 | self.result['data']=self._load_snap_store(self.store) |
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| 72 | else: |
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| 73 | for app_info in applist: |
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| 74 | self.partial_progress=0 |
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| 75 | if action=='install': |
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| 76 | dataList.append(self._install_snap(app_info)) |
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| 77 | if action=='remove': |
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| 78 | dataList.append(self._remove_snap(app_info)) |
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| 79 | if action=='pkginfo': |
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| 80 | dataList.append(self._get_info(app_info)) |
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| 81 | self.progress+=round(self.partial_progress/len(applist),1) |
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| 82 | if self.progress>98: |
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| 83 | self.progress=98 |
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| 84 | self.result['data']=list(dataList) |
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| 85 | self.progress=100 |
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| 86 | return(self.result) |
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| 87 | |
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| 88 | def _set_status(self,status,msg=''): |
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| 89 | self.result['status']={'status':status,'msg':msg} |
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| 90 | #def _set_status |
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| 91 | |
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| 92 | def _callback(self,client,change, _,user_data): |
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| 93 | # Interate over tasks to determine the aggregate tasks for completion. |
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| 94 | total = 0 |
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| 95 | done = 0 |
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| 96 | for task in change.get_tasks(): |
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| 97 | total += task.get_progress_total() |
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| 98 | done += task.get_progress_done() |
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| 99 | self.progress = round((done/total)*100) |
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| 100 | #def _callback |
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| 101 | |
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| 102 | def _load_snap_store(self,store): |
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| 103 | pkgs=[] |
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| 104 | if self.cli_mode: |
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| 105 | pkgs=self._search_snap("*") |
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| 106 | else: |
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| 107 | pkgs=self._search_snap_async("*") |
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| 108 | self._set_status(1) |
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| 109 | for pkg in pkgs: |
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| 110 | store.add_app(self._generate_appstream_app(pkg)) |
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| 111 | return(store) |
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| 112 | |
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| 113 | def _generate_appstream_app(self,pkg): |
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| 114 | bundle=appstream.Bundle() |
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| 115 | app=appstream.App() |
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| 116 | #F*****g appstream have kinds undefined but kind_from_string works... wtf? |
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| 117 | # bundle.set_kind(appstream.BundleKind.SNAP) |
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| 118 | bundle.set_kind(bundle.kind_from_string('SNAP')) |
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| 119 | bundle.set_id(pkg.get_name()+'.snap') |
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| 120 | app.add_bundle(bundle) |
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| 121 | app.set_name("C",pkg.get_name()) |
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| 122 | app.add_pkgname(pkg.get_name()+'.snap') |
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| 123 | app.add_category("Snap") |
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| 124 | release=appstream.Release() |
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| 125 | release.set_version(pkg.get_version()) |
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| 126 | app.add_release(release) |
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| 127 | app.set_id("io.snapcraft.%s"%pkg.get_name()+'.snap') |
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| 128 | # app.set_id(pkg.get_name()+'.snap') |
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| 129 | app.set_id_kind=appstream.IdKind.DESKTOP |
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| 130 | description=("This is an Snap bundle of app %s. It hasn't been tested by our developers and comes from a 3rd party dev team. Please use it carefully."%pkg.get_name()) |
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| 131 | app.set_description("C",description+'<br>'+pkg.get_description()) |
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| 132 | app.set_comment("C",pkg.get_summary()) |
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| 133 | app.add_keyword("C",pkg.get_name()) |
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| 134 | for word in pkg.get_summary().split(' '): |
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| 135 | app.add_keyword("C",word) |
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| 136 | |
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| 137 | if pkg.get_icon(): |
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| 138 | app.set_icon_path(pkg.get_icon()) |
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| 139 | return(app) |
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| 140 | |
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| 141 | def _search_cb(self,obj,request,*args): |
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| 142 | global wrap |
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| 143 | wrap=request |
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| 144 | |
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| 145 | def _search_snap_async(self,tokens): |
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| 146 | self._debug("Async Searching %s"%tokens) |
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| 147 | pkgs=None |
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| 148 | global wrap |
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| 149 | self.snap_client.find_async(Snapd.FindFlags.MATCH_NAME, |
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| 150 | tokens, |
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| 151 | None, |
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| 152 | self._search_cb,(None,),None) |
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| 153 | while 'Snapd' not in str(type(wrap)): |
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| 154 | time.sleep(0.1) |
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| 155 | snaps=self.snap_client.find_finish(wrap) |
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| 156 | if type(snaps)!=type([]): |
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| 157 | pkgs=[snaps] |
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| 158 | else: |
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| 159 | pkgs=snaps |
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| 160 | stable_pkgs=[] |
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| 161 | for pkg in pkgs: |
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| 162 | if pkg.get_channel()=='stable': |
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| 163 | stable_pkgs.append(pkg) |
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| 164 | return(stable_pkgs) |
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| 165 | |
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| 166 | def _search_snap(self,tokens): |
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| 167 | self._debug("Searching %s"%tokens) |
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| 168 | pkg=None |
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| 169 | try: |
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| 170 | pkgs=self.snap_client.find_sync(Snapd.FindFlags.MATCH_NAME,tokens,None,None) |
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| 171 | except Exception as e: |
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| 172 | print(e) |
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| 173 | self._set_status(1) |
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| 174 | stable_pkgs=[] |
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| 175 | for pkg in pkgs: |
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| 176 | if pkg.get_channel()=='stable': |
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| 177 | stable_pkgs.append(pkg) |
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| 178 | self._debug("Done") |
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| 179 | return(stable_pkgs) |
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| 180 | #def _search_snap |
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| 181 | |
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| 182 | def _download_file(self,url,app_name): |
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| 183 | target_file=self.icons_folder+'/'+app_name+".png" |
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| 184 | if not os.path.isfile(target_file): |
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| 185 | self._debug("Downloading %s to %s"%(url,target_file)) |
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| 186 | try: |
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| 187 | with urllib.request.urlopen(url) as response, open(target_file, 'wb') as out_file: |
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| 188 | bf=16*1024 |
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| 189 | acumbf=0 |
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| 190 | file_size=int(response.info()['Content-Length']) |
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| 191 | while True: |
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| 192 | if acumbf>=file_size: |
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| 193 | break |
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| 194 | shutil.copyfileobj(response, out_file,bf) |
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| 195 | acumbf=acumbf+bf |
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| 196 | st = os.stat(target_file) |
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| 197 | os.chmod(target_file, st.st_mode | 0o111) |
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| 198 | except Exception as e: |
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| 199 | self._debug("Unable to download %s"%url) |
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| 200 | self._debug("Reason: %s"%e) |
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| 201 | return(target_file) |
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| 202 | #def _download_file |
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| 203 | |
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| 204 | |
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| 205 | def _get_info(self,app_info): |
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| 206 | #switch to launch async method when running under a gui |
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| 207 | #For an unknown reason request will block when sync mode under a gui and async blocks when on cli (really funny) |
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| 208 | if self.cli_mode: |
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| 209 | pkgs=self._search_snap(app_info['name']) |
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| 210 | else: |
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| 211 | pkgs=self._search_snap_async(app_info['name']) |
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| 212 | if type(pkgs)==type([]): |
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| 213 | for pkg in pkgs: |
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| 214 | if pkg.get_download_size(): |
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| 215 | app_info['size']=str(pkg.get_download_size()) |
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| 216 | else: |
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| 217 | app_info['size']=str(pkg.get_installed_size()) |
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| 218 | if pkg.get_icon(): |
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| 219 | if self.icon_cache_enabled: |
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| 220 | app_info['icon']=self._download_file(pkg.get_icon(),app_info['name']) |
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| 221 | else: |
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| 222 | app_info['icon']=pkg.get_icon() |
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| 223 | if pkg.get_status(): |
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| 224 | #Not working on xenial |
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| 225 | # if pkg.get_status()==Snapd.SnapStatus.INSTALLED or pkg.get_status()==3: |
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| 226 | # app_info['state']='installed' |
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| 227 | try: |
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| 228 | self.snap_client.list_one_sync(pkg.get_name()) |
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| 229 | app_info['state']='installed' |
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| 230 | except: |
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| 231 | app_info['state']='available' |
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| 232 | if pkg.get_screenshots(): |
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| 233 | screenshot_list=[] |
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| 234 | for screen in pkg.get_screenshots(): |
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| 235 | screenshot_list.append(screen.get_url()) |
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| 236 | app_info["screenshots"]=screenshot_list |
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| 237 | #Method not working in xenial, license default type assigned in infoManager |
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| 238 | # if pkg.get_license(): |
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| 239 | # app_info["license"]=pkg.get_license() |
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| 240 | break |
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| 241 | else: |
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| 242 | app_info['size']='0' |
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| 243 | self._debug("Info for %s"%app_info) |
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| 244 | self.partial_progress=100 |
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| 245 | return(app_info) |
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| 246 | #def _get_info |
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| 247 | |
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| 248 | def _install_snap(self,app_info): |
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| 249 | self._debug("Installing %s"%app_info['name']) |
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| 250 | if app_info['state']=='installed': |
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| 251 | self._set_status(4) |
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| 252 | else: |
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| 253 | try: |
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| 254 | self.snap_client.install_sync(app_info['name'], |
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| 255 | None, # channel |
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| 256 | self._callback, (None,), |
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| 257 | None) # cancellable |
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| 258 | app_info['state']='installed' |
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| 259 | self._set_status(0) |
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| 260 | except Exception as e: |
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| 261 | print("Install error %s"%e) |
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| 262 | self._set_status(5) |
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| 263 | |
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| 264 | self._debug("Installed %s"%app_info) |
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| 265 | return app_info |
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| 266 | #def _install_snap |
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| 267 | |
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| 268 | def _remove_snap(self,app_info): |
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| 269 | if app_info['state']=='available': |
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| 270 | self._set_status(3) |
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| 271 | else: |
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| 272 | try: |
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| 273 | self.snap_client.remove_sync(app_info['name'], |
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| 274 | self._callback, (None,), |
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| 275 | None) # cancellable |
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| 276 | app_info['state']='available' |
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| 277 | self._set_status(0) |
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| 278 | except Exception as e: |
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| 279 | print("Remove error %s"%e) |
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| 280 | self._set_status(6) |
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| 281 | return app_info |
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| 282 | #def _remove_snap |
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