Produits Entr'ouvert » Lasso

With liblasso3 and python-lasso both on version 2.6.0.7.gf33d-1~eob90+1

The issue can be reproduced as below:

Python 2.7.15 (default, May  1 2018, 05:55:50) 
[GCC 7.3.0] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import lasso
>>> payload = u'SAMLResponse=PHNhbWxwOlJlc3BvbnNlIHhtbG5zOnNhbWxwPSJ1cm46b2FzaXM6bmFtZXM6dGM6U0FNTDoyLjA6cHJvdG9jb2wiIHhtbG5zOnNhbWw9InVybjpvYXNpczpuYW1lczp0YzpTQU1MOjIuMDphc3NlcnRpb24iIElEPSJfNDFGQkNBREUwREVEOUUzRDgzREYwMzI2MEZGMDVEMDYiIEluUmVzcG9uc2VUbz0iXzdBNzY1OEI0MkIwRjc5QUM5OTNGMjlBMDRBRjA5NUZEIiBWZXJzaW9uPSIyLjAiIElzc3VlSW5zdGFudD0iMjAxOC0wNy0xMVQxNDo0NToxN1oiIERlc3RpbmF0aW9uPSJodHRwOi8vdGVzdHNlcnZlci9sb2dpbi8iPjxzYW1sOklzc3Vlcj5odHRwOi8vaWRwNS9tZXRhZGF0YTwvc2FtbDpJc3N1ZXI%2BPFNpZ25hdHVyZSB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC8wOS94bWxkc2lnIyI%2BCjxTaWduZWRJbmZvPgo8Q2Fub25pY2FsaXphdGlvbk1ldGhvZCBBbGdvcml0aG09Imh0dHA6Ly93d3cudzMub3JnLzIwMDEvMTAveG1sLWV4Yy1jMTRuIyIvPgo8U2lnbmF0dXJlTWV0aG9kIEFsZ29yaXRobT0iaHR0cDovL3d3dy53My5vcmcvMjAwMC8wOS94bWxkc2lnI3JzYS1zaGExIi8%2BCjxSZWZlcmVuY2UgVVJJPSIjXzQxRkJDQURFMERFRDlFM0Q4M0RGMDMyNjBGRjA1RDA2Ij4KPFRyYW5zZm9ybXM%2BCjxUcmFuc2Zvcm0gQWxnb3JpdGhtPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwLzA5L3htbGRzaWcjZW52ZWxvcGVkLXNpZ25hdHVyZSIvPgo8VHJhbnNmb3JtIEFsZ29yaXRobT0iaHR0cDovL3d3dy53My5vcmcvMjAwMS8xMC94bWwtZXhjLWMxNG4jIi8%2BCjwvVHJhbnNmb3Jtcz4KPERpZ2VzdE1ldGhvZCBBbGdvcml0aG09Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvMDkveG1sZHNpZyNzaGExIi8%2BCjxEaWdlc3RWYWx1ZT5PNmF5ZTMvcWFWZ3FwQlNhK3I2S01hZ3Jld3c9PC9EaWdlc3RWYWx1ZT4KPC9SZWZlcmVuY2U%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%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%2BCjwvUlNBS2V5VmFsdWU%2BCjwvS2V5VmFsdWU%2BCjwvS2V5SW5mbz4KPC9TaWduYXR1cmU%2BPHNhbWxwOlN0YXR1cz48c2FtbHA6U3RhdHVzQ29kZSBWYWx1ZT0idXJuOm9hc2lzOm5hbWVzOnRjOlNBTUw6Mi4wOnN0YXR1czpTdWNjZXNzIi8%2BPC9zYW1scDpTdGF0dXM%2BPHNhbWw6QXNzZXJ0aW9uIFZlcnNpb249IjIuMCIgSUQ9Il83NTIyRjdBNUU3ODJFQTBDOEM1RUVBNUQxN0Y0NzlENyIgSXNzdWVJbnN0YW50PSIyMDE4LTA3LTExVDE0OjQ1OjE3WiI%2BPHNhbWw6SXNzdWVyPmh0dHA6Ly9pZHA1L21ldGFkYXRhPC9zYW1sOklzc3Vlcj48U2lnbmF0dXJlIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwLzA5L3htbGRzaWcjIj4KPFNpZ25lZEluZm8%2BCjxDYW5vbmljYWxpemF0aW9uTWV0aG9kIEFsZ29yaXRobT0iaHR0cDovL3d3dy53My5vcmcvMjAwMS8xMC94bWwtZXhjLWMxNG4jIi8%2BCjxTaWduYXR1cmVNZXRob2QgQWxnb3JpdGhtPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwLzA5L3htbGRzaWcjcnNhLXNoYTEiLz4KPFJlZmVyZW5jZSBVUkk9IiNfNzUyMkY3QTVFNzgyRUEwQzhDNUVFQTVEMTdGNDc5RDciPgo8VHJhbnNmb3Jtcz4KPFRyYW5zZm9ybSBBbGdvcml0aG09Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvMDkveG1sZHNpZyNlbnZlbG9wZWQtc2lnbmF0dXJlIi8%2BCjxUcmFuc2Zvcm0gQWxnb3JpdGhtPSJodHRwOi8vd3d3LnczLm9yZy8yMDAxLzEwL3htbC1leGMtYzE0biMiLz4KPC9UcmFuc2Zvcm1zPgo8RGlnZXN0TWV0aG9kIEFsZ29yaXRobT0iaHR0cDovL3d3dy53My5vcmcvMjAwMC8wOS94bWxkc2lnI3NoYTEiLz4KPERpZ2VzdFZhbHVlPlpMdnFpbmQ1SnRpOEtjbG1OZXptdEhZMVJaMD08L0RpZ2VzdFZhbHVlPgo8L1JlZmVyZW5jZT4KPC9TaWduZWRJbmZvPgo8U2lnbmF0dXJlVmFsdWU%2BTkY5eEp3QWFod0hzTllmRjdLQlhCWmpSZDhPS1U0a2xSMDBadzlWbExnQ1MyMktRUGtFT0l1K3lZNlBFaDRGVQpOQU11eE5jcnhSSFRjWkxGVnY0a2llalVBMVo3clQ0dVU1WnlOUmptem1vaVA5Z1NDU2MrWVJYYmw4b3VVbi8xCjRKaVY4d25ZWVVsa2pDTW5wYlFwa3p6V0M0eFlXUkc5cUQzT0REOTFKMEJ5WXZKYXZPRkF3QWJDS0E1bU1YOE8KZHdEaUVhdzhJdjVGTlMvbjdiejloSlJkdFhkbCtod1JIMWE0dUxLdEgvd2tZRXY1K2Z3MjZxRC8vU2orakxacgpTQmVGeG03WXp5ZmxhVmFOL3NjWmNYemZLQkt2TGFJVG5VNzJzUFd6R1l1TlJ0QWZoeDJ0OHhnMTRiTkxQTU1XCmtOZHNCa3ZacU02d3E3aUI4eml2aVE9PTwvU2lnbmF0dXJlVmFsdWU%2BCjxLZXlJbmZvPgo8S2V5VmFsdWU%2BCjxSU0FLZXlWYWx1ZT4KPE1vZHVsdXM%2BCnpUb2ZIcFdBZGhIM0JSLysxbFZWTkdSVlkycUgzSDQrOGNEYW9mZzVneTZvYXpnQi9xVlRaaXhtK2V1WkYxd1YKYS9UNVNSMENCZUZGNEpZQm1DMEhXbDM5YjJicW9OR1YwSUxMS3lqRHJFODhwSFArazVQQkZlYjk4elJBWTk1ZgpQRE9QZmdGYzRnNjRXNzZmdnJpOHFmWHgzNjY1VUFUT1RYbnZxbkZPbmlsQS9NbDkwMHVzdDVEeS9JS3lHZ1ZUCjR4Z20yblZRRDZIWW1nN1JqeWdhL0xCdFRFZUtnYzNrKytmTTV0OEF6aGRvTkNpR1ovRXoxUnp0YW5qRW9CelcKZFNybUhBR3NlbU1VeEZMUHBRSjh5Z2xJWWlMN2ZFa3lRMEtNdlJjVERrMHBWem1ORXFUTktRM21Qd3BNeitUVwpNOCt3TWM5RmpOdFphR2MyMTNvbVdRPT0KPC9Nb2R1bHVzPgo8RXhwb25lbnQ%2BCkFRQUIKPC9FeHBvbmVudD4KPC9SU0FLZXlWYWx1ZT4KPC9LZXlWYWx1ZT4KPC9LZXlJbmZvPgo8L1NpZ25hdHVyZT48c2FtbDpTdWJqZWN0PjxzYW1sOk5hbWVJRCBGb3JtYXQ9InVybjpvYXNpczpuYW1lczp0YzpTQU1MOjIuMDpuYW1laWQtZm9ybWF0OnBlcnNpc3RlbnQiIE5hbWVRdWFsaWZpZXI9Imh0dHA6Ly9pZHA1L21ldGFkYXRhIiBTUE5hbWVRdWFsaWZpZXI9Imh0dHA6Ly90ZXN0c2VydmVyL21ldGFkYXRhLyI%2BXzA2MUM3OEQ4NkU2RTkxNTREMTUyNzA2OERBQkZGQjM3PC9zYW1sOk5hbWVJRD48c2FtbDpTdWJqZWN0Q29uZmlybWF0aW9uIE1ldGhvZD0idXJuOm9hc2lzOm5hbWVzOnRjOlNBTUw6Mi4wOmNtOmJlYXJlciI%2BPHNhbWw6U3ViamVjdENvbmZpcm1hdGlvbkRhdGEgTm90T25PckFmdGVyPSJGSVhNRSIgUmVjaXBpZW50PSJodHRwOi8vdGVzdHNlcnZlci9sb2dpbi8iIEluUmVzcG9uc2VUbz0iXzdBNzY1OEI0MkIwRjc5QUM5OTNGMjlBMDRBRjA5NUZEIi8%2BPC9zYW1sOlN1YmplY3RDb25maXJtYXRpb24%2BPC9zYW1sOlN1YmplY3Q%2BPHNhbWw6Q29uZGl0aW9ucyBOb3RCZWZvcmU9IkZJWE1FIiBOb3RPbk9yQWZ0ZXI9IkZJWE1FIj48c2FtbDpBdWRpZW5jZVJlc3RyaWN0aW9uPjxzYW1sOkF1ZGllbmNlPmh0dHA6Ly90ZXN0c2VydmVyL21ldGFkYXRhLzwvc2FtbDpBdWRpZW5jZT48L3NhbWw6QXVkaWVuY2VSZXN0cmljdGlvbj48L3NhbWw6Q29uZGl0aW9ucz48c2FtbDpBdXRoblN0YXRlbWVudCBBdXRobkluc3RhbnQ9IkZJWE1FIiBTZXNzaW9uSW5kZXg9Il83NTIyRjdBNUU3ODJFQTBDOEM1RUVBNUQxN0Y0NzlENyI%2BPHNhbWw6QXV0aG5Db250ZXh0PjxzYW1sOkF1dGhuQ29udGV4dENsYXNzUmVmPnVybjpvYXNpczpuYW1lczp0YzpTQU1MOjEuMDphbTpwYXNzd29yZDwvc2FtbDpBdXRobkNvbnRleHRDbGFzc1JlZj48L3NhbWw6QXV0aG5Db250ZXh0Pjwvc2FtbDpBdXRoblN0YXRlbWVudD48L3NhbWw6QXNzZXJ0aW9uPjwvc2FtbHA6UmVzcG9uc2U%2B&RelayState=446b1a4e-c9d5-4de2-b247-0d552177ab2b'
>>> provider_id = lasso.profileGetIssuer(payload)
No handlers could be found for logger "Lasso" 
>>> provider_id
>>> 

The XML message seems to bear a valid issuer element (http://www.idp5.com/metadata).