Add --cert-* rep-info command options

5 files changed, 132 insertions, 7 deletions

diff --git a/bpkg/auth b/bpkg/auth
index 3d1ff65..a608667 100644
--- a/bpkg/auth
+++ b/bpkg/auth
@@ -91,6 +91,14 @@ namespace bpkg
                    const string& key_name, // --key option value
                    const string& cert_pem,
                    const dir_path& repository);
+
+  // Parse a repository certificate. The repository location argument is used
+  // for diagnostics only.
+  //
+  shared_ptr<certificate>
+  parse_certificate (const common_options&,
+                     const string& cert_pem,
+                     const repository_location&);
 }
 
 #endif // BPKG_AUTH
diff --git a/bpkg/auth.cxx b/bpkg/auth.cxx
index 673e3ec..c152834 100644
--- a/bpkg/auth.cxx
+++ b/bpkg/auth.cxx
@@ -844,4 +844,15 @@ namespace bpkg
 
     throw failed ();
   }
+
+  shared_ptr<certificate>
+  parse_certificate (const common_options& co,
+                     const string& cert_pem,
+                     const repository_location& rl)
+  {
+    return parse_cert (co,
+                       real_fingerprint (co, cert_pem, rl),
+                       cert_pem,
+                       rl.canonical_name ());
+  }
 }
diff --git a/bpkg/openssl.cxx b/bpkg/openssl.cxx
index 67500b6..4e795cb 100644
--- a/bpkg/openssl.cxx
+++ b/bpkg/openssl.cxx
@@ -5,7 +5,6 @@
 #include <bpkg/openssl>
 
 #include <butl/process>
-#include <butl/fdstream>
 
 #include <bpkg/diagnostics>
 
diff --git a/bpkg/rep-info.cli b/bpkg/rep-info.cli
index 5fa5d3d..faa6456 100644
--- a/bpkg/rep-info.cli
+++ b/bpkg/rep-info.cli
@@ -21,10 +21,14 @@ namespace bpkg
 
      The \cb{rep-info} command prints various information about the specified
      repository. By default it print the repository's name and location as the
-     first line followed by the list of complement and prerequisite
-     repositories and the list of available packages. This default behavior,
-     however, can be altered in various ways using options listed below. Note
-     that the information is written to \cb{STDOUT}, not \cb{STDERR}.
+     first line. If the repository is signed, the certificate information
+     (name/organization/email) is printed as the next line following by the
+     certificate fingerprint. Then comes the list of complement and
+     prerequisite repositories followed by the list of available packages.
+
+     This default format can be altered in various ways using options listed
+     below. Note also that the information is written to \cb{STDOUT}, not
+     \cb{STDERR}.
 
      If the current working directory contains a \cb{bpkg} configuration, then
      \cb{rep-info} will use its certificate database for the repository
@@ -42,7 +46,31 @@ namespace bpkg
 
     bool --name|-n
     {
-      "Print the specified repository's name and location."
+      "Print the repository's name and location."
+    }
+
+    bool --cert-fingerprint
+    {
+      "Print the repository's certificate fingerprint or empty line if the
+       repository is unsigned."
+    }
+
+    bool --cert-name
+    {
+      "Print the repository's certificate common name (CN) or empty line if
+       the repository is unsigned."
+    }
+
+    bool --cert-organization
+    {
+      "Print the repository's certificate organization name (O) or empty line
+       if the repository is unsigned."
+    }
+
+    bool --cert-email
+    {
+      "Print the repository's certificate email or empty line if the
+       repository is unsigned."
     }
 
     bool --repositories|-r
diff --git a/bpkg/rep-info.cxx b/bpkg/rep-info.cxx
index 9cad4fd..765bc70 100644
--- a/bpkg/rep-info.cxx
+++ b/bpkg/rep-info.cxx
@@ -6,6 +6,8 @@
 
 #include <iostream>  // cout
 
+#include <butl/sha256> // sha256_to_fingerprint()
+
 #include <bpkg/manifest>
 #include <bpkg/manifest-serializer>
 
@@ -94,7 +96,15 @@ namespace bpkg
 
     // Now print.
     //
-    bool all (!o.name () && !o.repositories () && !o.packages ());
+    bool cert_info (o.cert_fingerprint ()  ||
+                    o.cert_name ()         ||
+                    o.cert_organization () ||
+                    o.cert_email ());
+
+    bool all (!o.name ()         &&
+              !o.repositories () &&
+              !o.packages ()     &&
+              !cert_info);
 
     try
     {
@@ -103,6 +113,75 @@ namespace bpkg
       if (all || o.name ())
         cout << rl.canonical_name () << " " << rl << endl;
 
+      // Certificate.
+      //
+      if (all || cert_info)
+      {
+        if (cert_pem)
+        {
+          // Repository is signed. If we got the repository certificate as the
+          // result of authentication then use it for printing as well.
+          // Otherwise parse it's PEM representation.
+          //
+          if (cert == nullptr)
+            cert = parse_certificate (o, *cert_pem, rl);
+          else
+            assert (!cert->dummy ());
+        }
+        else if (cert != nullptr)
+        {
+          // Reset the dummy certificate pointer that we got as a result of
+          // the unsigned repository authentication.
+          //
+          assert (cert->dummy ());
+          cert = nullptr;
+        }
+
+        if (all)
+        {
+          // Print in the human-friendly format (nothing for an unsigned
+          // repository).
+          //
+          if (cert != nullptr)
+            cout << "CN=" << cert->name << "/O=" << cert->organization <<
+              "/" << cert->email << endl
+                 << sha256_to_fingerprint (cert->fingerprint) << endl;
+        }
+        else
+        {
+          // Print in the structured format if any of --cert-* options are
+          // specified. Print empty lines for an unsigned repository.
+          //
+          if (o.cert_fingerprint ())
+          {
+            if (cert != nullptr)
+              cout << sha256_to_fingerprint (cert->fingerprint);
+            cout << endl;
+          }
+
+          if (o.cert_name ())
+          {
+            if (cert != nullptr)
+              cout << "name:" << cert->name;
+            cout << endl;
+          }
+
+          if (o.cert_organization ())
+          {
+            if (cert != nullptr)
+              cout << cert->organization;
+            cout << endl;
+          }
+
+          if (o.cert_email ())
+          {
+            if (cert != nullptr)
+              cout << cert->email;
+            cout << endl;
+          }
+        }
+      }
+
       // Repositories.
       //
       if (all || o.repositories ())