技术经验解读：【Python】torrentParser1.04增加获得磁力链URI功能

代码：

#------------------------------------------------------------------------------------

# torrentParser1.04，用于解析torrent文件

# 增加了函数getMegnet,能将种子文件转磁力链

# 2018年5月13日

#------------------------------------------------------------------------------------

from bencode import bdecode,bencode

import time

import hashlib

import base64

#-------------------------------------

# torrentParser类

#-------------------------------------

class torrentParser(object):

# 构造函数

def init(self,filePathname):

self.filePathname=filePathname

with open(filePathname,'rb') as fObj:

self.fileDic=bdecode(fObj.read())

# 得到文件路径名

def getFilepathname(self):

return self.filePathname

# 得到所有键值

def getKeys(self):

return self.fileDic.keys()

# 得到全部内容

def getAllContent(self):

return self.fileDic;

# 得到文件结构

def getStructure(self):

retval=''

layer=0

for key in self.fileDic.keys():

value=self.fileDic【key】

retval=retval+self.getNextNode(key,value,layer)

return retval

# 向下递归查找文件结构,

def getNextNode(self,key,value,layer):

retval="";

layer+=1

if type(value)==type({}) and len(value.keys())>0:

for i in range(1,layer+1):

retval=retval+"\t"

retval=retval+str(key)+"\n"

for k in value.keys():

v=value【k】

retval=retval+ self.getNextNode(k,v,layer)

elif type(value)==type(【】) and len(value)>0:

for i in range(1,layer+1):

//代码效果参考：http://hnjlyzjd.com/xl/wz_24419.html

retval=retval+"\t"

retval=retval+str(key)+"\n"

arr=value

for it in arr:

if type(it)==type({}) and len(it.keys())>0:

for nk in it.keys():

nv=it【nk】

retval=retval+''+self.getNextNode(nk,nv,layer)

else:

for i in range(1,layer+1):

retval=retval+"\t"

showValue=str(value)【0:50】 # 显示的值

retval=retval+str(key)+":"+showValue+"\n"

return retval

# 获得tracker服务器的URL

def getAnnounce(self):

if 'announce' in self.fileDic:

return self.fileDic【'announce'】.decode('utf-8','ignore')

return ''

# 获得tracker服务器的URL列表

def getAnnounceList(self):

retval=【】

if 'announce-list' in self.fileDic:

arr=self.fileDic【'announce-list'】

for childArr in arr:

if type(childArr)==type(【】):

for item in childArr:

retval.append(item.decode('utf-8','ignore'))

else:

retval.append(childArr.decode('utf-8','ignore'))

return retval

# 得到制作日期

def getCreateTime(self):

if 'creation date' in self.fileDic:

unixTimestamp=self.fileDic【'creation date'】

firmalTime = time.localtime(unixTimestamp)

dt = time.strftime('%Y-%m-%d %H:%M:%S', firmalTime)

return dt

else:

return ''

# 获得编码方式

def getEncoding(self):

if 'encoding' in self.fileDic:

return self.fileDic【'encoding'】.decode('utf-8','ignore')

return ''

# 是否包含多个文件

def hasMultiFiles(self):

if 'files' in self.fileDic【'info'】:

return True

else:

return False

# 获得文件名

def getTitle(self):

arr=【】

info = self.fileDic【'info'】

if 'name.utf-8' in info:

arr=info【'name.utf-8'】

else:

arr = info【'name'】

#print(str(arr))

return arr.decode('utf-8','ignore')

# 获得备注(可选项)

def getComment(self):

if 'comment' in self.fileDic:

return self.fileDic【'comment'】.decode('utf-8','ignore')

return ''

# 获得创建者(可选项)

def getCreatedBy(self):

if 'created by' in self.fileDic:

return self.fileDic【'created by'】.decode('utf-8','ignore')

return ''

# 多文件的情况下，得到多个文件的个数

def getFileCount(self):

return len(self.fileDic【'info'】【'files'】)

# 多文件的情况下，获得所有文件

def getFiles(self):

files=【】

for item in self.fileDic【'info'】【'files'】:

file={}

for key in item.keys():

value=item.get(key)

if key=='path':

#print('1.'+str(value))

#print('10.'+str(value【0】))

path=value【0】.decode('utf8','ignore')

value=path

if key=='path.utf-8':

#print('2.'+str(value))

#print('20.'+str(value【0】))

path=value【0】.decode('utf8','ignore')

value=path

file【key】=value

files.append(file)

return files

# 单文件情况下，取文件名

def getSingleFileName(self):

return self.getTitle();

# 单文件情况下，取文件长度

def getSingleFileLength(self):

return self.fileDic【'info'】【'length'】

# 单文件情况下，取文件md5sum

def getSingleFileMd5sum(self):

if 'md5sum' in self.fileDic【'info'】:

return self.fileDic【'info'】【'md5sum'】.decode('utf-8','ignore')

else:

return ''

# 单文件情况下，取文件长度

def getSingleFilePieceLength(self):

return self.fileDic【'info'】【'piece length'】

# 单文件情况下，取文件pieces

def getSingleFilePieces(self):

return self.fileDic【'info'】【'pieces'】

# 得到文件简报

def getBrief(self):

retval=""

retval=retval+"File:"+self.filePathname+"\n"

retval=retval+"announce:"+self.getAnnounce()+"\n"

arr=self.getAnnounceList()

if(len(arr)>0):

retval=retval+"announce list:"+"\n"

for it in arr:

retval=retval+"\t"+it+"\n"

retval=retval+"Create time:"+self.getCreateTime()+"\n"

retval=retval+"Ecoding:"+self.getEncoding()+"\n"

retval=retval+"Title:"+self.getTitle()+"\n"

retval=retval+"Comment:"+self.getComment()+"\n"

retval=retval+"Created by: