From dc40aacd148ecc7bf3b3050a47512803b8353409 Mon Sep 17 00:00:00 2001
From: Matt Singleton <matt@xcolour.net>
Date: Sat, 5 Sep 2020 16:36:27 -0500
Subject: initial commit

---
 .pylintrc    | 589 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 Pipfile      |  13 ++
 Pipfile.lock | 124 +++++++++++++
 browser.py   | 220 ++++++++++++++++++++++
 4 files changed, 946 insertions(+)
 create mode 100644 .pylintrc
 create mode 100644 Pipfile
 create mode 100644 Pipfile.lock
 create mode 100644 browser.py

diff --git a/.pylintrc b/.pylintrc
new file mode 100644
index 0000000..0ace322
--- /dev/null
+++ b/.pylintrc
@@ -0,0 +1,589 @@
+[MASTER]
+
+# A comma-separated list of package or module names from where C extensions may
+# be loaded. Extensions are loading into the active Python interpreter and may
+# run arbitrary code.
+extension-pkg-whitelist=
+
+# Specify a score threshold to be exceeded before program exits with error.
+fail-under=10.0
+
+# Add files or directories to the blacklist. They should be base names, not
+# paths.
+ignore=CVS
+
+# Add files or directories matching the regex patterns to the blacklist. The
+# regex matches against base names, not paths.
+ignore-patterns=
+
+# Python code to execute, usually for sys.path manipulation such as
+# pygtk.require().
+#init-hook=
+
+# Use multiple processes to speed up Pylint. Specifying 0 will auto-detect the
+# number of processors available to use.
+jobs=1
+
+# Control the amount of potential inferred values when inferring a single
+# object. This can help the performance when dealing with large functions or
+# complex, nested conditions.
+limit-inference-results=100
+
+# List of plugins (as comma separated values of python module names) to load,
+# usually to register additional checkers.
+load-plugins=
+
+# Pickle collected data for later comparisons.
+persistent=yes
+
+# When enabled, pylint would attempt to guess common misconfiguration and emit
+# user-friendly hints instead of false-positive error messages.
+suggestion-mode=yes
+
+# Allow loading of arbitrary C extensions. Extensions are imported into the
+# active Python interpreter and may run arbitrary code.
+unsafe-load-any-extension=no
+
+
+[MESSAGES CONTROL]
+
+# Only show warnings with the listed confidence levels. Leave empty to show
+# all. Valid levels: HIGH, INFERENCE, INFERENCE_FAILURE, UNDEFINED.
+confidence=
+
+# Disable the message, report, category or checker with the given id(s). You
+# can either give multiple identifiers separated by comma (,) or put this
+# option multiple times (only on the command line, not in the configuration
+# file where it should appear only once). You can also use "--disable=all" to
+# disable everything first and then reenable specific checks. For example, if
+# you want to run only the similarities checker, you can use "--disable=all
+# --enable=similarities". If you want to run only the classes checker, but have
+# no Warning level messages displayed, use "--disable=all --enable=classes
+# --disable=W".
+disable=print-statement,
+        parameter-unpacking,
+        unpacking-in-except,
+        old-raise-syntax,
+        backtick,
+        long-suffix,
+        old-ne-operator,
+        old-octal-literal,
+        import-star-module-level,
+        non-ascii-bytes-literal,
+        raw-checker-failed,
+        bad-inline-option,
+        locally-disabled,
+        file-ignored,
+        suppressed-message,
+        useless-suppression,
+        deprecated-pragma,
+        use-symbolic-message-instead,
+        apply-builtin,
+        basestring-builtin,
+        buffer-builtin,
+        cmp-builtin,
+        coerce-builtin,
+        execfile-builtin,
+        file-builtin,
+        long-builtin,
+        raw_input-builtin,
+        reduce-builtin,
+        standarderror-builtin,
+        unicode-builtin,
+        xrange-builtin,
+        coerce-method,
+        delslice-method,
+        getslice-method,
+        setslice-method,
+        no-absolute-import,
+        old-division,
+        dict-iter-method,
+        dict-view-method,
+        next-method-called,
+        metaclass-assignment,
+        indexing-exception,
+        raising-string,
+        reload-builtin,
+        oct-method,
+        hex-method,
+        nonzero-method,
+        cmp-method,
+        input-builtin,
+        round-builtin,
+        intern-builtin,
+        unichr-builtin,
+        map-builtin-not-iterating,
+        zip-builtin-not-iterating,
+        range-builtin-not-iterating,
+        filter-builtin-not-iterating,
+        using-cmp-argument,
+        eq-without-hash,
+        div-method,
+        idiv-method,
+        rdiv-method,
+        exception-message-attribute,
+        invalid-str-codec,
+        sys-max-int,
+        bad-python3-import,
+        deprecated-string-function,
+        deprecated-str-translate-call,
+        deprecated-itertools-function,
+        deprecated-types-field,
+        next-method-defined,
+        dict-items-not-iterating,
+        dict-keys-not-iterating,
+        dict-values-not-iterating,
+        deprecated-operator-function,
+        deprecated-urllib-function,
+        xreadlines-attribute,
+        deprecated-sys-function,
+        exception-escape,
+        comprehension-escape,
+        c-extension-no-member
+
+# Enable the message, report, category or checker with the given id(s). You can
+# either give multiple identifier separated by comma (,) or put this option
+# multiple time (only on the command line, not in the configuration file where
+# it should appear only once). See also the "--disable" option for examples.
+enable=
+
+
+[REPORTS]
+
+# Python expression which should return a score less than or equal to 10. You
+# have access to the variables 'error', 'warning', 'refactor', and 'convention'
+# which contain the number of messages in each category, as well as 'statement'
+# which is the total number of statements analyzed. This score is used by the
+# global evaluation report (RP0004).
+evaluation=10.0 - ((float(5 * error + warning + refactor + convention) / statement) * 10)
+
+# Template used to display messages. This is a python new-style format string
+# used to format the message information. See doc for all details.
+#msg-template=
+
+# Set the output format. Available formats are text, parseable, colorized, json
+# and msvs (visual studio). You can also give a reporter class, e.g.
+# mypackage.mymodule.MyReporterClass.
+output-format=text
+
+# Tells whether to display a full report or only the messages.
+reports=no
+
+# Activate the evaluation score.
+score=yes
+
+
+[REFACTORING]
+
+# Maximum number of nested blocks for function / method body
+max-nested-blocks=5
+
+# Complete name of functions that never returns. When checking for
+# inconsistent-return-statements if a never returning function is called then
+# it will be considered as an explicit return statement and no message will be
+# printed.
+never-returning-functions=sys.exit
+
+
+[LOGGING]
+
+# The type of string formatting that logging methods do. `old` means using %
+# formatting, `new` is for `{}` formatting.
+logging-format-style=old
+
+# Logging modules to check that the string format arguments are in logging
+# function parameter format.
+logging-modules=logging
+
+
+[SPELLING]
+
+# Limits count of emitted suggestions for spelling mistakes.
+max-spelling-suggestions=4
+
+# Spelling dictionary name. Available dictionaries: none. To make it work,
+# install the python-enchant package.
+spelling-dict=
+
+# List of comma separated words that should not be checked.
+spelling-ignore-words=
+
+# A path to a file that contains the private dictionary; one word per line.
+spelling-private-dict-file=
+
+# Tells whether to store unknown words to the private dictionary (see the
+# --spelling-private-dict-file option) instead of raising a message.
+spelling-store-unknown-words=no
+
+
+[MISCELLANEOUS]
+
+# List of note tags to take in consideration, separated by a comma.
+notes=FIXME,
+      XXX,
+      TODO
+
+# Regular expression of note tags to take in consideration.
+#notes-rgx=
+
+
+[TYPECHECK]
+
+# List of decorators that produce context managers, such as
+# contextlib.contextmanager. Add to this list to register other decorators that
+# produce valid context managers.
+contextmanager-decorators=contextlib.contextmanager
+
+# List of members which are set dynamically and missed by pylint inference
+# system, and so shouldn't trigger E1101 when accessed. Python regular
+# expressions are accepted.
+generated-members=
+
+# Tells whether missing members accessed in mixin class should be ignored. A
+# mixin class is detected if its name ends with "mixin" (case insensitive).
+ignore-mixin-members=yes
+
+# Tells whether to warn about missing members when the owner of the attribute
+# is inferred to be None.
+ignore-none=yes
+
+# This flag controls whether pylint should warn about no-member and similar
+# checks whenever an opaque object is returned when inferring. The inference
+# can return multiple potential results while evaluating a Python object, but
+# some branches might not be evaluated, which results in partial inference. In
+# that case, it might be useful to still emit no-member and other checks for
+# the rest of the inferred objects.
+ignore-on-opaque-inference=yes
+
+# List of class names for which member attributes should not be checked (useful
+# for classes with dynamically set attributes). This supports the use of
+# qualified names.
+ignored-classes=optparse.Values,thread._local,_thread._local
+
+# List of module names for which member attributes should not be checked
+# (useful for modules/projects where namespaces are manipulated during runtime
+# and thus existing member attributes cannot be deduced by static analysis). It
+# supports qualified module names, as well as Unix pattern matching.
+ignored-modules=
+
+# Show a hint with possible names when a member name was not found. The aspect
+# of finding the hint is based on edit distance.
+missing-member-hint=yes
+
+# The minimum edit distance a name should have in order to be considered a
+# similar match for a missing member name.
+missing-member-hint-distance=1
+
+# The total number of similar names that should be taken in consideration when
+# showing a hint for a missing member.
+missing-member-max-choices=1
+
+# List of decorators that change the signature of a decorated function.
+signature-mutators=
+
+
+[VARIABLES]
+
+# List of additional names supposed to be defined in builtins. Remember that
+# you should avoid defining new builtins when possible.
+additional-builtins=
+
+# Tells whether unused global variables should be treated as a violation.
+allow-global-unused-variables=yes
+
+# List of strings which can identify a callback function by name. A callback
+# name must start or end with one of those strings.
+callbacks=cb_,
+          _cb
+
+# A regular expression matching the name of dummy variables (i.e. expected to
+# not be used).
+dummy-variables-rgx=_+$|(_[a-zA-Z0-9_]*[a-zA-Z0-9]+?$)|dummy|^ignored_|^unused_
+
+# Argument names that match this expression will be ignored. Default to name
+# with leading underscore.
+ignored-argument-names=_.*|^ignored_|^unused_
+
+# Tells whether we should check for unused import in __init__ files.
+init-import=no
+
+# List of qualified module names which can have objects that can redefine
+# builtins.
+redefining-builtins-modules=six.moves,past.builtins,future.builtins,builtins,io
+
+
+[FORMAT]
+
+# Expected format of line ending, e.g. empty (any line ending), LF or CRLF.
+expected-line-ending-format=
+
+# Regexp for a line that is allowed to be longer than the limit.
+ignore-long-lines=^\s*(# )?<?https?://\S+>?$
+
+# Number of spaces of indent required inside a hanging or continued line.
+indent-after-paren=4
+
+# String used as indentation unit. This is usually "    " (4 spaces) or "\t" (1
+# tab).
+indent-string='    '
+
+# Maximum number of characters on a single line.
+max-line-length=100
+
+# Maximum number of lines in a module.
+max-module-lines=1000
+
+# Allow the body of a class to be on the same line as the declaration if body
+# contains single statement.
+single-line-class-stmt=no
+
+# Allow the body of an if to be on the same line as the test if there is no
+# else.
+single-line-if-stmt=no
+
+
+[SIMILARITIES]
+
+# Ignore comments when computing similarities.
+ignore-comments=yes
+
+# Ignore docstrings when computing similarities.
+ignore-docstrings=yes
+
+# Ignore imports when computing similarities.
+ignore-imports=no
+
+# Minimum lines number of a similarity.
+min-similarity-lines=4
+
+
+[BASIC]
+
+# Naming style matching correct argument names.
+argument-naming-style=snake_case
+
+# Regular expression matching correct argument names. Overrides argument-
+# naming-style.
+#argument-rgx=
+
+# Naming style matching correct attribute names.
+attr-naming-style=snake_case
+
+# Regular expression matching correct attribute names. Overrides attr-naming-
+# style.
+#attr-rgx=
+
+# Bad variable names which should always be refused, separated by a comma.
+bad-names=foo,
+          bar,
+          baz,
+          toto,
+          tutu,
+          tata
+
+# Bad variable names regexes, separated by a comma. If names match any regex,
+# they will always be refused
+bad-names-rgxs=
+
+# Naming style matching correct class attribute names.
+class-attribute-naming-style=any
+
+# Regular expression matching correct class attribute names. Overrides class-
+# attribute-naming-style.
+#class-attribute-rgx=
+
+# Naming style matching correct class names.
+class-naming-style=PascalCase
+
+# Regular expression matching correct class names. Overrides class-naming-
+# style.
+#class-rgx=
+
+# Naming style matching correct constant names.
+const-naming-style=UPPER_CASE
+
+# Regular expression matching correct constant names. Overrides const-naming-
+# style.
+#const-rgx=
+
+# Minimum line length for functions/classes that require docstrings, shorter
+# ones are exempt.
+docstring-min-length=-1
+
+# Naming style matching correct function names.
+function-naming-style=snake_case
+
+# Regular expression matching correct function names. Overrides function-
+# naming-style.
+#function-rgx=
+
+# Good variable names which should always be accepted, separated by a comma.
+good-names=i,
+           j,
+           k,
+           ex,
+           Run,
+           _
+
+# Good variable names regexes, separated by a comma. If names match any regex,
+# they will always be accepted
+good-names-rgxs=
+
+# Include a hint for the correct naming format with invalid-name.
+include-naming-hint=no
+
+# Naming style matching correct inline iteration names.
+inlinevar-naming-style=any
+
+# Regular expression matching correct inline iteration names. Overrides
+# inlinevar-naming-style.
+#inlinevar-rgx=
+
+# Naming style matching correct method names.
+method-naming-style=snake_case
+
+# Regular expression matching correct method names. Overrides method-naming-
+# style.
+#method-rgx=
+
+# Naming style matching correct module names.
+module-naming-style=snake_case
+
+# Regular expression matching correct module names. Overrides module-naming-
+# style.
+#module-rgx=
+
+# Colon-delimited sets of names that determine each other's naming style when
+# the name regexes allow several styles.
+name-group=
+
+# Regular expression which should only match function or class names that do
+# not require a docstring.
+no-docstring-rgx=^_
+
+# List of decorators that produce properties, such as abc.abstractproperty. Add
+# to this list to register other decorators that produce valid properties.
+# These decorators are taken in consideration only for invalid-name.
+property-classes=abc.abstractproperty
+
+# Naming style matching correct variable names.
+variable-naming-style=snake_case
+
+# Regular expression matching correct variable names. Overrides variable-
+# naming-style.
+#variable-rgx=
+
+
+[STRING]
+
+# This flag controls whether inconsistent-quotes generates a warning when the
+# character used as a quote delimiter is used inconsistently within a module.
+check-quote-consistency=no
+
+# This flag controls whether the implicit-str-concat should generate a warning
+# on implicit string concatenation in sequences defined over several lines.
+check-str-concat-over-line-jumps=no
+
+
+[IMPORTS]
+
+# List of modules that can be imported at any level, not just the top level
+# one.
+allow-any-import-level=
+
+# Allow wildcard imports from modules that define __all__.
+allow-wildcard-with-all=no
+
+# Analyse import fallback blocks. This can be used to support both Python 2 and
+# 3 compatible code, which means that the block might have code that exists
+# only in one or another interpreter, leading to false positives when analysed.
+analyse-fallback-blocks=no
+
+# Deprecated modules which should not be used, separated by a comma.
+deprecated-modules=optparse,tkinter.tix
+
+# Create a graph of external dependencies in the given file (report RP0402 must
+# not be disabled).
+ext-import-graph=
+
+# Create a graph of every (i.e. internal and external) dependencies in the
+# given file (report RP0402 must not be disabled).
+import-graph=
+
+# Create a graph of internal dependencies in the given file (report RP0402 must
+# not be disabled).
+int-import-graph=
+
+# Force import order to recognize a module as part of the standard
+# compatibility libraries.
+known-standard-library=
+
+# Force import order to recognize a module as part of a third party library.
+known-third-party=enchant
+
+# Couples of modules and preferred modules, separated by a comma.
+preferred-modules=
+
+
+[CLASSES]
+
+# List of method names used to declare (i.e. assign) instance attributes.
+defining-attr-methods=__init__,
+                      __new__,
+                      setUp,
+                      __post_init__
+
+# List of member names, which should be excluded from the protected access
+# warning.
+exclude-protected=_asdict,
+                  _fields,
+                  _replace,
+                  _source,
+                  _make
+
+# List of valid names for the first argument in a class method.
+valid-classmethod-first-arg=cls
+
+# List of valid names for the first argument in a metaclass class method.
+valid-metaclass-classmethod-first-arg=cls
+
+
+[DESIGN]
+
+# Maximum number of arguments for function / method.
+max-args=5
+
+# Maximum number of attributes for a class (see R0902).
+max-attributes=7
+
+# Maximum number of boolean expressions in an if statement (see R0916).
+max-bool-expr=5
+
+# Maximum number of branch for function / method body.
+max-branches=12
+
+# Maximum number of locals for function / method body.
+max-locals=15
+
+# Maximum number of parents for a class (see R0901).
+max-parents=7
+
+# Maximum number of public methods for a class (see R0904).
+max-public-methods=20
+
+# Maximum number of return / yield for function / method body.
+max-returns=6
+
+# Maximum number of statements in function / method body.
+max-statements=50
+
+# Minimum number of public methods for a class (see R0903).
+min-public-methods=2
+
+
+[EXCEPTIONS]
+
+# Exceptions that will emit a warning when being caught. Defaults to
+# "BaseException, Exception".
+overgeneral-exceptions=BaseException,
+                       Exception
diff --git a/Pipfile b/Pipfile
new file mode 100644
index 0000000..d087bf0
--- /dev/null
+++ b/Pipfile
@@ -0,0 +1,13 @@
+[[source]]
+name = "pypi"
+url = "https://pypi.org/simple"
+verify_ssl = true
+
+[dev-packages]
+pylint = "*"
+
+[packages]
+pyside2 = "*"
+
+[requires]
+python_version = "3.8"
diff --git a/Pipfile.lock b/Pipfile.lock
new file mode 100644
index 0000000..f071e66
--- /dev/null
+++ b/Pipfile.lock
@@ -0,0 +1,124 @@
+{
+    "_meta": {
+        "hash": {
+            "sha256": "6ab125c809493f48b2455c80c8297db7ea44a5f654424211b1a3538067433d5b"
+        },
+        "pipfile-spec": 6,
+        "requires": {
+            "python_version": "3.8"
+        },
+        "sources": [
+            {
+                "name": "pypi",
+                "url": "https://pypi.org/simple",
+                "verify_ssl": true
+            }
+        ]
+    },
+    "default": {
+        "pyside2": {
+            "hashes": [
+                "sha256:1478ea8a1ab5d8bc021ce41211933fbc238338fe70c02f7bcc2e80ea900dbf9e",
+                "sha256:2d72150f63025b9b55097c1a64d09da37ff9191f73f69237500dec7a4a130541",
+                "sha256:7ac86f31bc0a4fbf3f0bf00890e849441776be304c7b8bf259d777a7fe5fe913",
+                "sha256:7c91a5074f3c60bac7e9336943a1dc9d5c8be8ab88a232dc55018e555dae81b2",
+                "sha256:ae8158d611a410c58091aa8baf24005894b4e3f40c63ff2482149481ad5395b4",
+                "sha256:de0220cc01a8bfdaa8ccd0fc934a1ead2aedca62b49b5fd4bdcdaba6f4585a03",
+                "sha256:f9099e49fb2d3571f5a81eb9ff281ce832ce8c333052e8175e2356b9c3e4a882",
+                "sha256:fad5ce781d0774bfad39f54b6c3376909b8d27f2075cbde6f4499df7dbd855f9"
+            ],
+            "index": "pypi",
+            "version": "==5.15.0"
+        },
+        "shiboken2": {
+            "hashes": [
+                "sha256:0826ce788fe55bce19a8f8a2c33d720a6ba8f59e1aab1fa9d7a53eceed3f3af5",
+                "sha256:19d5f715e5ae8a815a7f148a8614a3225dceee6fd9d5decaa7749657f0f7ccbe",
+                "sha256:41a9157fb9cc7e0c0747926b25c23c3f94d59d61736a6ff763ebc7acf6afc5cf",
+                "sha256:4b0904e0967356a36e80cde05981faa14c120141856d973ee983eac0b83633c0",
+                "sha256:5702e77ad5999ac45498c3cd47f5d078ce7406cf8dc8df74337b0cdc084bf762",
+                "sha256:94991848e9ff4d03c2d7feab484113b5b5ad7f9fdfa0b0ff46ce18da47b36b58",
+                "sha256:a92c55363d5cd3cfdd6cd28dcf91e81a00a3aa5bb177d712817c09d26bd760db",
+                "sha256:e753324a78cbdab1c5917b5600c708a8db7e1336579e7afa20ed90edda15eefa"
+            ],
+            "version": "==5.15.0"
+        }
+    },
+    "develop": {
+        "astroid": {
+            "hashes": [
+                "sha256:2f4078c2a41bf377eea06d71c9d2ba4eb8f6b1af2135bec27bbbb7d8f12bb703",
+                "sha256:bc58d83eb610252fd8de6363e39d4f1d0619c894b0ed24603b881c02e64c7386"
+            ],
+            "version": "==2.4.2"
+        },
+        "isort": {
+            "hashes": [
+                "sha256:92533892058de0306e51c88f22ece002a209dc8e80288aa3cec6d443060d584f",
+                "sha256:a200d47b7ee8b7f7d0a9646650160c4a51b6a91a9413fd31b1da2c4de789f5d3"
+            ],
+            "version": "==5.5.1"
+        },
+        "lazy-object-proxy": {
+            "hashes": [
+                "sha256:0c4b206227a8097f05c4dbdd323c50edf81f15db3b8dc064d08c62d37e1a504d",
+                "sha256:194d092e6f246b906e8f70884e620e459fc54db3259e60cf69a4d66c3fda3449",
+                "sha256:1be7e4c9f96948003609aa6c974ae59830a6baecc5376c25c92d7d697e684c08",
+                "sha256:4677f594e474c91da97f489fea5b7daa17b5517190899cf213697e48d3902f5a",
+                "sha256:48dab84ebd4831077b150572aec802f303117c8cc5c871e182447281ebf3ac50",
+                "sha256:5541cada25cd173702dbd99f8e22434105456314462326f06dba3e180f203dfd",
+                "sha256:59f79fef100b09564bc2df42ea2d8d21a64fdcda64979c0fa3db7bdaabaf6239",
+                "sha256:8d859b89baf8ef7f8bc6b00aa20316483d67f0b1cbf422f5b4dc56701c8f2ffb",
+                "sha256:9254f4358b9b541e3441b007a0ea0764b9d056afdeafc1a5569eee1cc6c1b9ea",
+                "sha256:9651375199045a358eb6741df3e02a651e0330be090b3bc79f6d0de31a80ec3e",
+                "sha256:97bb5884f6f1cdce0099f86b907aa41c970c3c672ac8b9c8352789e103cf3156",
+                "sha256:9b15f3f4c0f35727d3a0fba4b770b3c4ebbb1fa907dbcc046a1d2799f3edd142",
+                "sha256:a2238e9d1bb71a56cd710611a1614d1194dc10a175c1e08d75e1a7bcc250d442",
+                "sha256:a6ae12d08c0bf9909ce12385803a543bfe99b95fe01e752536a60af2b7797c62",
+                "sha256:ca0a928a3ddbc5725be2dd1cf895ec0a254798915fb3a36af0964a0a4149e3db",
+                "sha256:cb2c7c57005a6804ab66f106ceb8482da55f5314b7fcb06551db1edae4ad1531",
+                "sha256:d74bb8693bf9cf75ac3b47a54d716bbb1a92648d5f781fc799347cfc95952383",
+                "sha256:d945239a5639b3ff35b70a88c5f2f491913eb94871780ebfabb2568bd58afc5a",
+                "sha256:eba7011090323c1dadf18b3b689845fd96a61ba0a1dfbd7f24b921398affc357",
+                "sha256:efa1909120ce98bbb3777e8b6f92237f5d5c8ea6758efea36a473e1d38f7d3e4",
+                "sha256:f3900e8a5de27447acbf900b4750b0ddfd7ec1ea7fbaf11dfa911141bc522af0"
+            ],
+            "version": "==1.4.3"
+        },
+        "mccabe": {
+            "hashes": [
+                "sha256:ab8a6258860da4b6677da4bd2fe5dc2c659cff31b3ee4f7f5d64e79735b80d42",
+                "sha256:dd8d182285a0fe56bace7f45b5e7d1a6ebcbf524e8f3bd87eb0f125271b8831f"
+            ],
+            "version": "==0.6.1"
+        },
+        "pylint": {
+            "hashes": [
+                "sha256:bb4a908c9dadbc3aac18860550e870f58e1a02c9f2c204fdf5693d73be061210",
+                "sha256:bfe68f020f8a0fece830a22dd4d5dddb4ecc6137db04face4c3420a46a52239f"
+            ],
+            "index": "pypi",
+            "version": "==2.6.0"
+        },
+        "six": {
+            "hashes": [
+                "sha256:30639c035cdb23534cd4aa2dd52c3bf48f06e5f4a941509c8bafd8ce11080259",
+                "sha256:8b74bedcbbbaca38ff6d7491d76f2b06b3592611af620f8426e82dddb04a5ced"
+            ],
+            "version": "==1.15.0"
+        },
+        "toml": {
+            "hashes": [
+                "sha256:926b612be1e5ce0634a2ca03470f95169cf16f939018233a670519cb4ac58b0f",
+                "sha256:bda89d5935c2eac546d648028b9901107a595863cb36bae0c73ac804a9b4ce88"
+            ],
+            "version": "==0.10.1"
+        },
+        "wrapt": {
+            "hashes": [
+                "sha256:b62ffa81fb85f4332a4f609cab4ac40709470da05643a082ec1eb88e6d9b97d7"
+            ],
+            "version": "==1.12.1"
+        }
+    }
+}
diff --git a/browser.py b/browser.py
new file mode 100644
index 0000000..9d1d421
--- /dev/null
+++ b/browser.py
@@ -0,0 +1,220 @@
+import sys
+import socket
+import ssl
+
+from PySide2 import QtCore, QtWidgets
+
+def htmlescape(text):
+    return text.replace('<', '&lt;').replace('>', '&gt;')
+
+def gem2html(gem):
+    html = []
+    state = 'text'
+    blanklines = 0
+    for line in gem.split('\n'):
+        if line.startswith('```'):
+            if state == 'pre':
+                newstate = 'text'
+                blanklines = 0
+            else:
+                newstate = 'pre'
+        elif state == 'pre':
+            newstate = 'pre'
+        elif line.startswith('=>'):
+            newstate = 'links'
+        elif line.startswith('* '):
+            newstate = 'list'
+        else:
+            newstate = 'text'
+
+        if state != 'pre':
+            if len(line.strip()) == 0:
+                blanklines += 1
+                if blanklines > 1:
+                    html.append('<br/>')
+                continue
+            blanklines = 0
+
+        if state != newstate:
+            if state in ('links', 'list'):
+                html.append('</ul>')
+            elif state == 'pre':
+                html.append('</pre>')
+
+            if newstate in ('links', 'list'):
+                html.append('<ul>')
+            elif newstate == 'pre':
+                html.append('<pre>')
+        state = newstate
+
+        if line.startswith('```'):
+            pass
+        elif state == 'links':
+            tokens = line.split(None, 2)
+            if len(tokens) == 3:
+                _, url, text = tokens
+                html.append('<li><a href="{url}">{text}</a></li>'.format(url=url, text=text))
+            else:
+                _, url = tokens
+                html.append('<li><a href="{url}">{url}</a></li>'.format(url=url))
+        elif state == 'list':
+            html.append('<li>{}</li>'.format(line[2:]))
+        elif state == 'pre':
+            html.append(line)
+        else:
+            if line.startswith('###'):
+                html.append('<h3>{}</h3>'.format(line[3:].lstrip()))
+            elif line.startswith('##'):
+                html.append('<h2>{}</h2>'.format(line[2:].lstrip()))
+            elif line.startswith('#'):
+                html.append('<h1>{}</h1>'.format(line[1:].lstrip()))
+            else:
+                html.append('<p>{}</p>'.format(htmlescape(line)))
+    return '\n'.join(html)
+
+def absolute_url(base, url):
+    """
+    modifies `url` in place
+    """
+    if not url.scheme():
+        url.setScheme(base.scheme())
+    if not url.host():
+        url.setHost(base.host())
+    if not url.path().startswith('/'):
+        url.setPath(base.path().rsplit('/', 1)[0] + '/' + url.path())
+    if url.port() == -1:
+        url.setPort(1965)
+    return url
+
+def gem_get(url):
+    if len(url.path()) == 0:
+        url.setPath('/')
+        return {
+            'status': '32',
+            'meta': url.toDisplayString(),
+        }
+    context = ssl.create_default_context()
+    context.check_hostname = False
+    context.verify_mode = ssl.CERT_NONE
+    with socket.create_connection((url.host(), url.port())) as sock:
+        with context.wrap_socket(sock, server_hostname=url.host()) as ssock:
+            ssock.sendall('gemini://{}{}\r\n'.format(url.host(), url.path()).encode('utf8'))
+            fp = ssock.makefile(mode='rb')
+            header = fp.readline(1027)
+            status, meta = header.decode('utf8').split(None, 1)
+            if status[0] != '2':
+                return {
+                    'status': status,
+                    'meta': meta.strip(),
+                }
+            body = fp.read()
+    return {
+    'status': status,
+    'meta': meta.strip(),
+    'body': body.decode('utf8'),
+}
+
+class GViewport(QtWidgets.QTextBrowser):
+
+    hoverUrlChanged = QtCore.Signal(str)
+
+    def __init__(self, address_bar):
+        self._current_url = None
+        self._last_redirect = (QtCore.QUrl(), {})
+        self.address_bar = address_bar
+        self._hover_url = None
+        QtWidgets.QTextBrowser.__init__(self)
+
+    def mouseMoveEvent(self, event):
+        cur = self.cursorForPosition(event.localPos().toPoint())
+        hover_url = cur.charFormat().anchorHref()
+        hover_url = absolute_url(self._current_url, QtCore.QUrl(hover_url))
+        if hover_url != self._hover_url:
+            print(hover_url)
+            self._hover_url = hover_url
+            self.hoverUrlChanged.emit(self._hover_url.toString())
+        return super().mouseMoveEvent(event)
+
+    def loadResource(self, type_, url):
+        if self._last_redirect[0].toString() == url.toString():
+            gem = self._last_redirect[1]
+        else:
+            if not url.scheme():
+                url.setScheme(self._current_url.scheme())
+            if not url.host():
+                url.setHost(self._current_url.host())
+            if url.port() == -1:
+                url.setPort(1965)
+            if not url.path().startswith('/'):
+                url.setPath(self._current_url.path().rsplit('/', 1)[0] + '/' + url.path())
+            gem = gem_get(absolute_url(self._current_url, url))
+        if 'body' in gem:
+            html = gem2html(gem['body'])
+        else:
+            html = '<h1>{} {}</h1>'.format(gem['status'], gem['meta'])
+        self._current_url = url
+        return html
+
+    def setSource(self, url):
+        if url.scheme() != 'gemini':
+            return
+        gem = gem_get(absolute_url(self._current_url, url))
+        while gem['status'][0] == '3':
+            url = QtCore.QUrl(gem['meta'])
+            if url.port() == 1965:
+                url.setPort(-1)
+            print('redirect: {}'.format(url))
+            gem = gem_get(absolute_url(self._current_url, url))
+        self._last_redirect = (url, gem)
+        if url.port() == 1965:
+            url.setPort(-1)
+        print('setSource: {}'.format(url))
+        return super().setSource(url)
+
+    def setRawSource(self):
+        return self.setSource(QtCore.QUrl(self.address_bar.text()))
+
+class GUrlBar(QtWidgets.QLineEdit):
+
+    def __init__(self):
+        QtWidgets.QLineEdit.__init__(self)
+
+    def setUrl(self, url):
+        return self.setText(url.toDisplayString())
+
+class GBrowser(QtWidgets.QMainWindow):
+
+    def __init__(self):
+        super(GBrowser, self).__init__()
+        self.initUI()
+
+    def initUI(self):
+        self.statusBar().showMessage('Ready')
+
+        back = QtWidgets.QPushButton("back")
+        forward = QtWidgets.QPushButton("forward")
+        address = GUrlBar()
+        toolbar = QtWidgets.QToolBar()
+        toolbar.addWidget(back)
+        toolbar.addWidget(forward)
+        toolbar.addWidget(address)
+        browser = GViewport(address)
+
+        back.clicked.connect(browser.backward)
+        forward.clicked.connect(browser.forward)
+        browser.sourceChanged.connect(address.setUrl)
+        address.returnPressed.connect(browser.setRawSource)
+        browser.hoverUrlChanged.connect(self.statusBar().showMessage)
+
+        self.addToolBar(toolbar)
+        self.setCentralWidget(browser)
+
+        browser.setSource(QtCore.QUrl('gemini://gemini.circumlunar.space/'))
+
+        self.setGeometry(10, 10, 1024, 750)
+        self.setWindowTitle('Gemini Browser')
+        self.show()
+
+app = QtWidgets.QApplication(sys.argv)
+ex = GBrowser()
+sys.exit(app.exec_())
-- 
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