Plugman code-reading

Study of Plugman, which is installer/uninstaller for Apache Cordova Plugins.

Transcript

1. 1MVHNBODPEF
   SFBEJOH 1MVHNBO
   
   zWFSTJPO
   EFW
2. QMVHNBO w 1MVHNBO
   JT
   
   w "
   DPNNBOE
   MJOF
   UPPM
   UP
   JOTUBMM
   BOE
   VOJOTUBMM
   QMVHJOT
   GPS
   VTF
   XJUI
   "QBDIF
   $PSEPWB
   QSPKFDUT
   w IUUQTHJUIVCDPNBQBDIFDPSEPWB QMVHNBO
3. QMVHNBO
   JOTUBMM QMVHNBO
   JOTUBMM
   
   QMVHJOT@EJS
   QMVHJOT
   
   QMVHJO
   DPNQIPOFHBQQMVHJOTCBSDPEFTDBOOFS
   
   QMBUGPSN
   BOESPJE
   
   QSPKFDU
   BOESPJEOBUJWF
   
   XXX
   BOESPJEKT QMVHJO͕อ؅͞Ε͍ͯΔ৔ॴ QMVHJOͷ໊લ ର৅ϓϥοτϑΥʔϜ BOESPJE༻ͷϓϥάΠϯϑΝΠϧ
 KBWB
   MJCT
   Λ഑ஔ͢Δର৅σΟϨΫτϦ QMVHJOT KT
   DPSEPWB@QMVHJOTKT
   ͕഑ஔ͞ΕΔ FY
   QMBUGPSN
   BOESPJE
4. pMFT w ͜ͷ͋ͨΓΛݟΔ
   w NBJOKT
   w QMVHNBOKT
   w JOTUBMMKT
   w QSFQBSFKT
5. NBJOKT w Ұ൪࢝Ίʹݺ͹ΕΔ
   w DMJ
   ͷΦϓγϣϯͷݕূ
   w QMVHNBO
   ͷDPOTPMF
   FWFOUͷઃఆ
   w Φϓγϣϯʹج͍ͮͨ
   QMVHNBO
   ͷؔ਺ͷ࣮ߦ
   ! w DPNNBOET
   ͸
   QMVHNBOKT
   ಺Ͱఆٛ͞ΕΔ
   w ͜͜Ͱ͍͏
   <DNE>
   ͸
   DPOpH
   JOTUBMM
   ͳͲͷίϚϯυͷ͜ͱ -
   WBS
   SFTVMU
   
   QMVHNBODPNNBOET<DNE> DMJ@PQUT 
6. QMVHNBOKT w QMVHNBO
   ͷϝΠϯ෦෼
   w QMVHNBODPNNBOET
   ͷதʹ࣮ߦՄೳͳίϚϯυྻ͕ฒͿ
   w ࣮ߦ͞ΕΔத਎͸ɺBEE1SPQFSUZͰରԠ͢ΔϞδϡʔϧΛTSD͔ΒSFRVJSF
   ! w ಡΈࠐΜͩ
   GVODUJPO
   Λ
   QMVHNBO
   PCKFDUͷϓϩύςΟͱͯ͠ొ࿥ -
   BEE1SPQFSUZ QMVHNBO
   JOTUBMM
   TSDJOTUBMM
   USVF 
7. JOTUBMMKT
   TSDJOTUBMMKT w JOTUBMM
   DPNNBOE
   ͷத਎
   w *OTUBMM
   qPX
   w JOTUBMM1MVHJO
   
   QPTTJCMZ'FUDI
   
   SVO*OTUBMM
   
   IBOEMF*OTUBMM
   w JOTUBMM1MVHJO QMBUGPSN
   QSPKFDU@EJS
   JE
   QMVHJOT@EJS
   PQUJPOT
   w QMBUGPSNͷνΣοΫ
   w QPTTJCMZ'FUDI BDUJPOT
   QMBUGPSN
   QSPKFDU@EJS
   JE
   QMVHJOT@EJS
   PQUJPOT
   w QMVHJO
   ͷ
   GFUDI
   Λߦ͍
   SVO*OTUBMM
   ʹਐΉ
8. JOTUBMMKT
   
   SVO*OTUBMM w 1MVHJO಺ʹ͋ΔQMVHJOYNM
   ΛύʔεɺQMVHJO໊
   *%Λऔಘ
   w QMVHJO͕Πϯετʔϧ͞Ε͍ͯΔ͔Λ֬ೝ
   w ֬ೝର৅ͷϑΝΠϧ͸
   QMBUGPSN
   ຖʹҧ͏ͷͰɺQMBUGPSNT KT
   Λࢀর͢Δ
   w QMVHJO
   ͕Πϯετʔϧ͞Ε͍ͯͳ͚Ε͹ଓ͘
   w HFU&OHJOFT
   ͰQMVHJOYNM
   ʹهࡌ͞Ε͍ͯΔॲཧΤϯδϯΛऔಘʢهࡌແ͠ͷ ৔߹͸
   EFGBVMUFOHJOFΛར༻ʣ
   w VUJMEFGBVMUFOHJOFTKT
   ʹهड़ͷ͋ΔFOHJOF
   Ͱ͋Ε͹ɺTDSJQU4SDͷύε͕ ηοτ͞ΕΔɻଘࡏ͠ͳ͍৔߹͸ҎԼͷϧʔϧͰ௥Ճ͞ΕΔɻ
   <engines> <engine name="cordova" version="1.8.1" /> <engine name="worklight" version="1.0.0" /> </engines> VUJMEFGBVMUFOHJOFTKT
   <ଘࡏ͢Δ৔߹>
   -
   \
   QMBUGPSN 
   TDSJQU4SD
   QBUIKPJO QSPKFDU@EJS DPSEPWB WFSTJPO
   ^
   <ଘࡏ͠ͳ͍৔߹>
   \
   OBNF
   UIF/BNF
   QMBUGPSN
   FOHJOFBUUSJC<QMBUGPSN>
   TDSJQU4SDQBUISFTPMWF QMVHJO@EJS
   FOHJOFBUUSJC<TDSJQU4SD>
   NJO7FSTJPO
   
   
   FOHJOFBUUSJC<WFSTJPO>^
   
9. JOTUBMMKT
   
   SVO*OTUBMM w औಘͨ͠
   FOHJOF
   ͷTDSJQU4SDΛDIJME@QSPDFTTͰىಈ
   
   DBMM&OHJOF4DSJQUT
   w TDSJQU4SDͷத਎͸
   WFSTJPO
   Λग़ྗ͢ΔγΣϧ
   w QMBUGPSNTJPTDPSEPWBWFSTJPO
   w ࣮ߦՄೳͳWFSTJPOͱ͍͏໊લͷγΣϧ͕͋ΔΛνΣοΫ͠ ͍ͯΔ
   w औಘͨ͠όʔδϣϯͱ
   QMVHJOYNM
   ʹॻ͍ͯ͋ΔόʔδϣϯΛൺ ֱͯ͠ɺαϙʔτόʔδϣϯ͔Ͳ͏͔Λ֬ೝ
   
   DIFDL&OHJOFT
10. JOTUBMMKT
    
    SVO*OTUBMM
    -
    
    - w QMVHJOYNM
    ಺ͷ
    QSFGFSFODF
    ͕͋Ε͹ɺίϚϯυҾ਺ PQUJPOT ʹଘࡏ͢Δ͔Λ֬ೝɻͳ͚Ε͹ͦ͜ͰίϚϯυ ऴྃ
    w QMVHJOYNM
    ಺ͷ
    EFQFOEFODZ
    ͕͋Ε͹ɺJOTUBMMࡁΈ QMVHJOΛ֬ೝɻແ͚Ε͹ɺMPDBM
    HJU
    ͔ΒQMVHJOΛऔಘ͠ ͯ͘Δ
    GFUDIKT
    w ४උ׬ྃɻIBOEMF*OTUBMMΛݺͿ
    IBOEMF*OTUBMM BDUJPOT
    QMVHJO@JE
    QMVHJO@FU
    QMBUGPSN
    QSPKFDU@EJS
    QMVHJOT@EJS
    JOTUBMM@QMVHJO@EJS
    pMUFSFE@WBSJBCMFT
    PQUJPOTXXX@EJS
    PQUJPOTJT@UPQ@MFWFM 
11. JOTUBMMKT
    
    IBOEMF*OTUBMM w QMVHJOYNM
    ͷ
    QMBUGPSN
    λά಺Λର৅ʹ࣮ࡍʹ ϑΝΠϧͳͲΛҠಈͤ͞Δ
    ! ! w
    QMBUGPSNT KT
    ͔ΒରԠ͢ΔϓϥοτϑΥʔϜ ͷίϚϯυΛ࣮ߦ४උ
    
    
    
    
    
    
    
    WBS
    TPVSDF'JMFT
    
    QMBUGPSN5BHpOEBMM TPVSDFpMF
    
    
    
    
    
    
    
    
    
    
    
    
    IFBEFS'JMFT
    
    QMBUGPSN5BHpOEBMM IFBEFSpMF
    
    
    
    
    
    
    
    
    
    
    
    
    SFTPVSDF'JMFT
    
    QMBUGPSN5BHpOEBMM SFTPVSDFpMF
    
    
    
    
    
    
    
    
    
    
    
    
    GSBNFXPSL'JMFT
    
    QMBUGPSN5BHpOEBMM GSBNFXPSL<!DVTUPNUSVF>
    
    
    
    
    
    
    
    
    
    
    
    
    MJC'JMFT
    
    QMBUGPSN5BHpOEBMM MJCpMF
    
    
    
    
    
    
    
    
    
    
    
    
    BTTFUT
    
    BTTFUTDPODBU QMBUGPSN5BHpOEBMM BTTFU  -
    BDUJPOTQVTI BDUJPOTDSFBUF"DUJPO IBOEMFS<lTPVSDFpMF>JOTUBMM
12. JOTUBMMKT
    
    IBOEMF*OTUBMM w ίϐʔઌΛܾఆͯ͠ϑΝΠϧΛҠಈͤ͞Δ
    ! ! w BDUJPOTQSPDFTT QMBUGPSN
    QSPKFDU@EJS
    w ࣦഊͨ͠Β
    VOJOTUBMM
    ͕ݺ͹ΕΔ
    w ੒ޭ͢Ε͹
    JOTUBMM
    ॲཧ׬ྃ <QMBUGPSNTBOESPJEKT>
    JOTUBMMGVODUJPO TPVSDF@FM
    QMVHJO@EJS
    QSPKFDU@EJS
    QMVHJO@JE
    \
    
    
    
    
    
    
    
    
    
    
    
    
    WBS
    EFTU
    
    QBUIKPJO TPVSDF@FMBUUSJC<UBSHFUEJS>
    QBUICBTFOBNF TPVSDF@FMBUUSJC<TSD> 
    !
    
    
    
    
    
    
    
    
    
    
    
    DPNNPODPQZ/FX'JMF QMVHJO@EJS
    TPVSDF@FMBUUSJC<TSD>
    QSPKFDU@EJS
    EFTU 
    
    
    
    
    
    
    
    
    ^
13. QSFQBSFKT w QMVHJO
    ϑΝΠϧ΁ͷ
    DPSEPWBEFpOFͷ௥Ճ
    ! w DPSEPWB@QMVHJOTKT
    ϑΝΠϧͷ࡞੒ QMVHJOϑΝΠϧʹࣗಈૠೖ͞ΕΔ
    DPSEPWBEFpOF lDPNQIPOFHBQQMVHJOT -
    TDSJQU$POUFOU
    
    DPSEPWBEFpOF 
    
    NPEVMF/BNF
    
    
    GVODUJPO SFRVJSF
    FYQPSUT
    NPEVMF
    \
    
    
    TDSJQU$POUFOU
    
    aO^ aO -
    WBS
    pOBM@DPOUFOUT
    
    DPSEPWBEFpOF DPSEPWBQMVHJO@MJTU
    GVODUJPO SFRVJSF
    FYQPSUT
    NPEVMF
    \aO
    -
    pOBM@DPOUFOUT
    
    NPEVMFFYQPSUT
    
    
    
    +40/TUSJOHJGZ NPEVMF0CKFDUT OVMM 
    
    
    
    
    
    baO
    ʜ
    -
    GTXSJUF'JMF4ZOD QBUIKPJO XXX%JS
    DPSEPWB@QMVHJOTKT
    pOBM@DPOUFOUT
    VUG 
14. &OE
    PG
    4MJEFT