get_cydia_dpkg_urls.py

#!/usr/bin/env python3

import sys, os, glob

def parse_pkgs(fn):
    basefn = os.path.basename(fn)
    basefn = basefn.split('_dists_', 1)[0]
    basefn = basefn.split('_._', 1)[0]
    #print(basefn)
    fd = open(fn, 'rb').read()
    pkgfdl = fd.split(b'Package: ')
    for pkgfdli in pkgfdl:
        pkgfdli = b'Package: '+pkgfdli
        #print(pkgfdli)
        pkg_name = ''
        pkg_version = ''
        pkg_deps = []
        pkg_url = ''
        for pkgfdli_f in pkgfdli.split(b'\n'):
            if (not pkgfdli_f):
                continue
            #print(pkgfdli_f)
            pkgfdli_fvf = pkgfdli_f.split(b': ', 1)
            if (len(pkgfdli_fvf) != 2):
                pkgfdli_fvf = pkgfdli_f.split(b':', 1)
            if (len(pkgfdli_fvf) != 2):
                continue
            pkgfdli_fv = pkgfdli_fvf[1]
            if (pkgfdli_f.startswith(b'Package: ')):
                pkgfdli_fv = pkgfdli_fv.decode()
                pkg_name = pkgfdli_fv
            elif (pkgfdli_f.startswith(b'Version: ')):
                pkgfdli_fv = pkgfdli_fv.decode()
                pkg_version = pkgfdli_fv
            elif (pkgfdli_f.startswith(b'Filename: ')):
                basefn = basefn.replace('_', '/')
                pkgfdli_fv = pkgfdli_fv.decode()
                pkg_url = f'{basefn}/{pkgfdli_fv}'
            elif (pkgfdli_f.startswith(b'Pre-Depends: ') or pkgfdli_f.startswith(b'Depends: ')):
                ##if (pkg_name in pkgs):
                ##    pkg_deps.extend(pkgs[pkg_name]['deps'])
                pkgfdli_fv = pkgfdli_fv.decode()
                #print(f'Depends0: {pkg_name}:', pkgfdli_fv)
                deppkgs_with_version = pkgfdli_fv.split(',')
                for deppkgs_with_version_i in deppkgs_with_version:
                    onlydeppkg = deppkgs_with_version_i.strip()
                    onlydeppkg = onlydeppkg.split(' ')[0]
                    onlydeppkg = onlydeppkg.split('(')[0]
                    #print('Depends:', onlydeppkg)
                    pkg_deps.append(onlydeppkg)
                #print(f'Depends1: {pkg_name}:', pkg_deps)
        #print(pkg_deps)
        if (pkg_name in pkgs):
            prev_ver = pkgs[pkg_name]['version']
            if (pkg_version < prev_ver):
                continue
        #print(pkg_name, pkg_deps)
        pkgs[pkg_name] = {'name': pkg_name, 'version': pkg_version, 'deps': pkg_deps, 'url' : pkg_url}

deps = []

def recurse_deps(pkg):
    global deps
    #deps = [pkg]
    deps.append(pkg)
    if (pkg not in pkgs):
        #print(f'recurse_deps: Pkg {pkg} not found!')
        #return deps
        return
    pkg_deps = pkgs[pkg]['deps']
    #print(pkg, pkg_deps)
    for pkg_dep in pkg_deps:
        if (pkg_dep in deps):
            continue
        deps.append(pkg_dep)
        rec_deps = recurse_deps(pkg_dep)
        #deps.extend(rec_deps)
    #return deps
    deps = list(set(deps))

def get_urls(pkg):
    #print(pkg)
    if (pkg not in pkgs):
        #print(f'get_urls: Pkg {pkg} not found!')
        return ''
    pkg_url = pkgs[pkg]['url']
    #print('pkg_url:', pkg_url)
    return pkg_url

pkg = sys.argv[1]
fns = glob.glob('/home/.../.../.../.../iphone/strap/private/var/lib/apt/lists/*Packages')

pkgs = {}

#print(fns)

for fn in fns:
    parse_pkgs(fn)

#print(pkgs)

#deps = 
recurse_deps(pkg)
#print(deps)

for dep in deps:
    url = get_urls(dep)
    if (not url):
        continue
    print(url)