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path: root/python/fatcat_web/forms.py
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"""
Note: in thoery could use, eg, https://github.com/christabor/swagger_wtforms,
but can't find one that is actually maintained.
"""

import datetime

import toml
from flask_wtf import FlaskForm
from wtforms import SelectField, DateField, StringField, IntegerField, \
    HiddenField, FormField, FieldList, validators, ValidationError, TextAreaField

from fatcat_tools import entity_to_toml
from fatcat_openapi_client import ContainerEntity, FileEntity, \
    ReleaseEntity, ReleaseContrib, FileUrl, ReleaseExtIds

release_type_options = [
    ('', 'Unknown (blank)'),
    ('article-journal', 'Journal Article'),
    ('paper-conference', 'Conference Proceeding'),
    ('article', 'Article (non-journal)'),
    ('book', 'Book'),
    ('chapter', 'Book Chapter'),
    ('dataset', 'Dataset'),
    ('stub', 'Invalid/Stub'),
]
release_stage_options = [
    ('', 'Unknown (blank)'),
    ('draft', 'Draft'),
    ('submitted', 'Submitted'),
    ('accepted', 'Accepted'),
    ('published', 'Published'),
    ('updated', 'Updated'),
]
withdrawn_status_options = [
    ('', 'Not Withdrawn (blank)'),
    ('retracted', 'Retracted'),
    ('withdrawn', 'Withdrawn'),
    ('concern', 'Concern Noted'),
    ('spam', 'Spam'),
    ('legal', 'Legal Taketown'),
    ('safety', 'Public Safety'),
    ('national-security', 'National Security'),
]
role_type_options = [
    ('author', 'Author'),
    ('editor', 'Editor'),
    ('translator', 'Translator'),
]

class EntityEditForm(FlaskForm):
    editgroup_id = StringField('Editgroup ID',
        [validators.Optional(True),
         validators.Length(min=26, max=26)])
    editgroup_description = StringField('Editgroup Description',
        [validators.Optional(True)])
    edit_description = StringField('Description of Changes',
        [validators.Optional(True)])

class ReleaseContribForm(FlaskForm):
    class Meta:
        # this is a sub-form, so disable CSRF
        csrf = False

    #surname
    #given_name
    #creator_id (?)
    #orcid (for match?)
    prev_index = HiddenField('prev_revision index', default=None)
    raw_name = StringField('Display Name',
        [validators.DataRequired()])
    role = SelectField(
        [validators.DataRequired()],
        choices=role_type_options,
        default='author')

RELEASE_SIMPLE_ATTRS = ['title', 'original_title', 'work_id', 'container_id',
    'release_type', 'release_stage', 'withdrawn_status', 'release_date',
    'release_year', 'volume', 'issue', 'pages', 'publisher', 'language',
    'license_slug']

RELEASE_EXTID_ATTRS = ['doi', 'wikidata_qid', 'isbn13', 'pmid', 'pmcid']

def valid_year(form, field):
    if field.data > datetime.date.today().year + 5:
        raise ValidationError(
            f"Year is too far in the future: {field.data}")
    if field.data < 10:
        raise ValidationError(
            f"Year is too far in the past: {field.data}")

def valid_2char_ascii(form, field):
    if len(field.data) != 2 or len(field.data.encode('utf-8')) != 2 or not field.data.isalpha() or field.data != field.data.lower():
        raise ValidationError(
            f"Must be 2-character ISO format, lower case: {field.data}")

class ReleaseEntityForm(EntityEditForm):
    """
    TODO:
    - field types: fatcat id
    - date
    """
    title = StringField('Title',
        [validators.DataRequired()])
    original_title = StringField('Title in Original Language (if different)')
    work_id = StringField('Work FCID',
        [validators.Optional(True),
         validators.Length(min=26, max=26)])
    container_id = StringField('Container FCID',
        [validators.Optional(True),
         validators.Length(min=26, max=26)])
    release_type = SelectField('Release Type',
        [validators.DataRequired()],
        choices=release_type_options,
        default='')
    release_stage = SelectField(choices=release_stage_options)
    withdrawn_status = SelectField("Withdrawn Status",
        [validators.Optional(True)],
        choices=withdrawn_status_options,
        default='')
    release_date = DateField('Release Date',
        [validators.Optional(True)])
    release_year = IntegerField('Release Year',
        [validators.Optional(True), valid_year])
    doi = StringField('DOI',
        [validators.Regexp(r'^10\..*\/.*', message="DOI must be valid"),
         validators.Optional(True)])
    wikidata_qid = StringField('Wikidata QID')
    isbn13 = StringField('ISBN-13')
    pmid = StringField('PubMed Id')
    pmcid = StringField('PubMed Central Id')
    #core_id
    #arxiv_id
    #jstor_id
    volume = StringField('Volume')
    issue = StringField('Issue')
    pages = StringField('Pages')
    publisher = StringField('Publisher (optional)')
    language = StringField('Language (code)',
        [validators.Optional(True), valid_2char_ascii])
    license_slug = StringField('License (slug)')
    contribs = FieldList(FormField(ReleaseContribForm))
    #refs
    #abstracts

    @staticmethod
    def from_entity(re):
        """
        Initializes form with values from an existing release entity.
        """
        ref = ReleaseEntityForm()
        for simple_attr in RELEASE_SIMPLE_ATTRS:
            a = getattr(ref, simple_attr)
            a.data = getattr(re, simple_attr)
        for extid_attr in RELEASE_EXTID_ATTRS:
            a = getattr(ref, extid_attr)
            a.data = getattr(re.ext_ids, extid_attr)
        for i, c in enumerate(re.contribs):
            rcf = ReleaseContribForm()
            rcf.prev_index = i
            rcf.role = c.role
            rcf.raw_name = c.raw_name
            ref.contribs.append_entry(rcf)
        return ref

    def to_entity(self):
        assert(self.title.data)
        entity = ReleaseEntity(title=self.title.data, ext_ids=ReleaseExtIds())
        self.update_entity(entity)
        return entity

    def update_entity(self, re):
        """
        Mutates a release entity in place, updating fields with values from
        this form.

        Form must be validated *before* calling this function.
        """
        for simple_attr in RELEASE_SIMPLE_ATTRS:
            a = getattr(self, simple_attr).data
            # special case blank strings
            if a == '':
                a = None
            setattr(re, simple_attr, a)
        for extid_attr in RELEASE_EXTID_ATTRS:
            a = getattr(self, extid_attr).data
            # special case blank strings
            if a == '':
                a = None
            setattr(re.ext_ids, extid_attr, a)
        if self.release_date.data:
            re.release_year = self.release_date.data.year
        # bunch of complexity here to preserve old contrib metadata (eg,
        # affiliation and extra) not included in current forms
        # TODO: this may be broken; either way needs tests
        if re.contribs:
            old_contribs = re.contribs.copy()
            re.contribs = []
        else:
            old_contribs = []
            re.contribs = []
        for c in self.contribs:
            if c.prev_index.data not in ('', None):
                rc = old_contribs[int(c.prev_index.data)]
                rc.role = c.role.data or None
                rc.raw_name = c.raw_name.data or None
            else:
                rc = ReleaseContrib(
                    role=c.role.data or None,
                    raw_name=c.raw_name.data or None,
                )
            re.contribs.append(rc)
        if self.edit_description.data:
            re.edit_extra = dict(description=self.edit_description.data)

container_type_options = (
    ('', 'Unknown (blank)'),
    ('journal', 'Scholarly Journal'),
    ('proceedings', 'Proceedings'),
    ('book-series', 'Book Series'),
    ('blog', 'Blog'),
    ('magazine', 'Magazine'),
    ('trade', 'Trade Magazine'),
    ('test', 'Test / Dummy'),
)

CONTAINER_SIMPLE_ATTRS = ['name', 'container_type', 'publisher', 'issnl',
    'wikidata_qid']
CONTAINER_EXTRA_ATTRS = ['issne', 'issnp', 'original_name', 'country']

class ContainerEntityForm(EntityEditForm):
    name = StringField('Name/Title',
        [validators.DataRequired()])
    container_type = SelectField('Container Type',
        [validators.Optional(True)],
        choices=container_type_options,
        default='')
    publisher = StringField("Publisher")
    issnl = StringField("ISSN-L (linking)")
    issne = StringField("ISSN (electronic)")
    issnp = StringField("ISSN (print)")
    original_name = StringField("Name in Original Language (if different)")
    country = StringField("Country of Publication (ISO code)",
        [validators.Optional(True), valid_2char_ascii])
    wikidata_qid = StringField('Wikidata QID')
    urls = FieldList(
        StringField("Container URLs",
            [validators.DataRequired(),
             validators.URL(require_tld=False)]))

    @staticmethod
    def from_entity(ce):
        """
        Initializes form with values from an existing container entity.
        """
        cef = ContainerEntityForm()
        for simple_attr in CONTAINER_SIMPLE_ATTRS:
            a = getattr(cef, simple_attr)
            a.data = getattr(ce, simple_attr)
        if ce.extra:
            for k in CONTAINER_EXTRA_ATTRS:
                if ce.extra.get(k):
                    a = getattr(cef, k)
                    a.data = ce.extra[k]
            if ce.extra.get('urls'):
                for url in ce.extra['urls']:
                    cef.urls.append_entry(url)
        return cef

    def to_entity(self):
        assert(self.name.data)
        entity = ContainerEntity(name=self.name.data)
        self.update_entity(entity)
        return entity

    def update_entity(self, ce):
        """
        Mutates a container entity in place, updating fields with values from
        this form.

        Form must be validated *before* calling this function.
        """
        for simple_attr in CONTAINER_SIMPLE_ATTRS:
            a = getattr(self, simple_attr).data
            # special case blank strings
            if a == '':
                a = None
            setattr(ce, simple_attr, a)
        if not ce.extra:
            ce.extra = dict()
        for extra_attr in CONTAINER_EXTRA_ATTRS:
            a = getattr(self, extra_attr).data
            if a and a != '':
                ce.extra[extra_attr] = a
        extra_urls = []
        for url in self.urls:
            extra_urls.append(url.data)
        if extra_urls:
            ce.extra['urls'] = extra_urls
        if self.edit_description.data:
            ce.edit_extra = dict(description=self.edit_description.data)
        if not ce.extra:
            ce.extra = None

url_rel_options = [
    ('web', 'Public Web'),
    ('webarchive', 'Web Archive'),
    ('repository', 'Repository'),
    ('archive', 'Preservation Archive'),
    ('academicsocial', 'Academic Social Network'),
    ('publisher', 'Publisher'),
    ('dweb', 'Decentralized Web'),
    ('aggregator', 'Aggregator'),
]

FILE_SIMPLE_ATTRS = ['size', 'md5', 'sha1', 'sha256', 'mimetype']

class FileUrlForm(FlaskForm):
    class Meta:
        # this is a sub-form, so disable CSRF
        csrf = False

    url = StringField('Display Name',
        [validators.DataRequired(),
         validators.URL(require_tld=False)])
    rel = SelectField(
        [validators.DataRequired()],
        choices=url_rel_options,
        default='web')

class FileEntityForm(EntityEditForm):
    # TODO: positive definite
    size = IntegerField('Size (bytes)',
        [validators.DataRequired()])
    md5 = StringField("MD5",
        [validators.Optional(True),
         validators.Length(min=32, max=32)])
    sha1 = StringField("SHA-1",
        [validators.DataRequired(),
         validators.Length(min=40, max=40)])
    sha256 = StringField("SHA-256",
        [validators.Optional(True),
         validators.Length(min=64, max=64)])
    urls = FieldList(FormField(FileUrlForm))
    mimetype = StringField("Mimetype")
    release_ids = FieldList(
        StringField("Release FCID",
            [validators.DataRequired(),
            validators.Length(min=26, max=26)]))

    @staticmethod
    def from_entity(fe):
        """
        Initializes form with values from an existing file entity.
        """
        ref = FileEntityForm()
        for simple_attr in FILE_SIMPLE_ATTRS:
            a = getattr(ref, simple_attr)
            a.data = getattr(fe, simple_attr)
        for i, c in enumerate(fe.urls):
            ruf = FileUrlForm()
            ruf.rel = c.rel
            ruf.url = c.url
            ref.urls.append_entry(ruf)
        for r in fe.release_ids:
            ref.release_ids.append_entry(r)
        return ref

    def to_entity(self):
        assert(self.sha1.data)
        entity = FileEntity()
        self.update_entity(entity)
        return entity

    def update_entity(self, fe):
        """
        Mutates in place, updating fields with values from this form.

        Form must be validated *before* calling this function.
        """
        for simple_attr in FILE_SIMPLE_ATTRS:
            a = getattr(self, simple_attr).data
            # be flexible about hash capitalization
            if simple_attr in ('md5', 'sha1', 'sha256'):
                a = a.lower()
            # special case blank strings
            if a == '':
                a = None
            setattr(fe, simple_attr, a)
        fe.urls = []
        for u in self.urls:
            fe.urls.append(FileUrl(
                rel=u.rel.data or None,
                url=u.url.data or None,
            ))
        fe.release_ids = []
        for ri in self.release_ids:
            fe.release_ids.append(ri.data)
        if self.edit_description.data:
            fe.edit_extra = dict(description=self.edit_description.data)

INGEST_TYPE_OPTIONS = [
    ('pdf', 'PDF Fulltext'),
    ('html', 'HTML Fulltext'),
    ('xml', 'XML Fulltext'),
]

class SavePaperNowForm(FlaskForm):

    base_url = StringField(
        "URL",
        [validators.DataRequired(),
         validators.URL()])
    ingest_type = SelectField(
        "Content Type",
        [validators.DataRequired()],
        choices=INGEST_TYPE_OPTIONS,
        default='pdf')
    release_stage = SelectField(
        "Publication Stage",
        [validators.DataRequired()],
        choices=release_stage_options,
        default='')

    def to_ingest_request(self, release, ingest_request_source='savepapernow'):
        base_url = self.base_url.data
        ext_ids = release.ext_ids.to_dict()
        # by default this dict has a bunch of empty values
        ext_ids = dict([(k, v) for (k, v) in ext_ids.items() if v])
        ingest_request = {
            'ingest_type': self.ingest_type.data,
            'ingest_request_source': ingest_request_source,
            'link_source': 'spn',
            'link_source_id': release.ident,
            'base_url': base_url,
            'fatcat': {
                'release_ident': release.ident,
                'work_ident': release.work_id,
            },
            'ext_ids': ext_ids,
        }
        if self.release_stage.data:
            ingest_request['release_stage'] = self.release_stage.data

        if release.ext_ids.doi and base_url == "https://doi.org/{}".format(release.ext_ids.doi):
            ingest_request['link_source'] = 'doi'
            ingest_request['link_source_id'] = release.ext_ids.doi
        elif release.ext_ids.arxiv and base_url == "https://arxiv.org/pdf/{}.pdf".format(release.ext_ids.arxiv):
            ingest_request['link_source'] = 'arxiv'
            ingest_request['link_source_id'] = release.ext_ids.arxiv
        return ingest_request

def valid_toml(form, field):
    try:
        toml.loads(field.data)
    except toml.TomlDecodeError as tpe:
        raise ValidationError(tpe)

class EntityTomlForm(EntityEditForm):

    toml = TextAreaField(
        "TOML",
        [validators.DataRequired(),
         valid_toml,
        ],
    )

    @staticmethod
    def from_entity(entity):
        """
        Initializes form with TOML version of existing entity
        """
        etf = EntityTomlForm()
        if entity.state == 'active':
            pop_fields = ['ident', 'state', 'revision', 'redirect']
        else:
            pop_fields = ['ident', 'state']
        etf.toml.data = entity_to_toml(entity, pop_fields=pop_fields)
        return etf